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2 Troubleshooting Procedures

2.3 Power Supply Troubleshooting

The power supply controls many functions and components. To determine if the power supply is
functioning properly, start with Procedure 1 and continue with the other Procedures as instructed.
The flowchart in Figure 2-2 gives a summary of the process. The procedures described in this
section are:

Procedure 1:  Power status check
Procedure 2:  Adaptor / battery replacement
Procedure 3:  Power supply connection check
Procedure 4:  Diagnostic check
Procedure 5:  Internal connection check

Procedure 1

Power Status Check

The following LEDs indicate the power supply status:

Battery LED

DC-IN LED

The power supply controller displays the power supply status through the Battery and the DC-IN
LEDs as listed in the tables below.

Table 2-1 Battery LED

Battery State

LED colors

Definition

Amber, solid on

Battery charging with AC .

Green, solid on

Battery fully charged by AC

Charging

Green color off

Battery abnormal stop charging with AC
(Bad cell/ Overheated)

Amber, blinking
(LED on for 1 second
every 4 seconds)

Battery within low state: 12 minutes
remaining

Amber, blinking
(LED on for 1 second
every 2 seconds)

Battery within critical low state: 3
minutes remaining. The system is
protected and cannot be re-powered on
without the AC power connected.

Discharging

Amber color off

Battery not in low or critical low state;
It’s in discharging state

2-8

Satellite P20-25 Series Maintenance Manual

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Summary of Contents for Satellite P20-25 Series

Page 1: ...Toshiba Personal Computer Satellite P20 25 Series Maintenance Manual TOSHIBA CORPORATION ...

Page 2: ...duction However succeeding computers and manuals are subject to change without notice Therefore Toshiba assumes no liability for damages incurred directly or indirectly from errors omissions or discrepancies between any succeeding product and this manual Trademarks IBM is a registered trademark and OS 2 and PS 2 are trademarks of IBM Corporation Microsoft MS DOS Windows DirectSound and DirectMusic...

Page 3: ... indicates the existence of a hazard that could result in bodily injury if the safety instruction is not observed CAUTION Caution indicates the existence of a hazard that could result in property damage if the safety instruction is not observed NOTE Note contains general information that relates to your safe maintenance service Improper repair of the computer may result in safety hazards Toshiba r...

Page 4: ...plains how to diagnose and resolve FRU problems Chapter 3 Test and Diagnostics describes how to perform test and diagnostic operations for maintenance service Chapter 4 Replacement Procedures describes the removal and replacement of the FRUs Appendices The appendices describe the following Handling the LCD module Board layout Pin assignments Keyboard scan character codes Key layout Screw torque li...

Page 5: ... on the keyboard is printed in boldface type Key operation Some operations require you to simultaneously use two or more keys We identify such operations by the key top symbols separated by a plus sign For example Ctrl Pause Break means you must hold down Ctrl and at the same time press Pause Break If three keys are used hold down the first two and at the same time press the third User input Text ...

Page 6: ...vi Satellite P20 25 Series Maintenance Manual ...

Page 7: ... 3 Power Supply Troubleshooting 2 7 2 4 Display Troubleshooting 2 12 2 5 FDD Troubleshooting 2 15 2 6 Keyboard Troubleshooting 2 17 2 7 External USB Devices Troubleshooting 2 20 2 8 TV Out Failure Troubleshooting 2 22 2 9 Printer Port Troubleshooting 2 24 2 10 TouchPad Troubleshooting 2 26 2 11 Speaker Troubleshooting 2 28 2 12 Optical Drive Troubleshooting 2 30 2 13 Modem Troubleshooting 2 33 2 1...

Page 8: ... Test 3 7 3 5 PIO Loopback Test 3 8 3 6 IEEE 1394 Test 3 9 3 7 Speaker Audio Test 3 10 3 8 Fan ON OFF Test 3 11 3 9 Main Battery Charge Test 3 12 3 10 FDD Test 3 13 3 11 CD ROM Test 3 14 3 12 Keyboard Test 3 15 3 13 Mouse Pad Test 3 18 3 14 LCD Pixels Mode Test 3 20 3 15 Lid Switch Test 3 21 3 16 HDD R W Test 3 22 3 17 LAN Test 3 24 3 18 RTC Test 3 26 3 19 CD Control Button Test 3 27 ...

Page 9: ... Unit 25 4 10 Expansion Memory 28 4 11 Modem Bluetooth Unit 31 4 12 CPU 34 4 13 HDD 38 4 14 Keyboard 42 4 15 Top Cover 45 4 16 Function Key Board 48 4 17 LED Power Button Board 50 4 18 TouchPad 52 4 19 Display Assembly 54 4 20 System Board 58 4 21 Direct Play Button Board 62 4 22 CIR Board 64 4 23 Direct play LED board 66 4 24 Audio Board 68 4 25 Speakers 70 4 26 Fan Set 72 4 27 Display Mask 75 4 ...

Page 10: ...Appendices Appendix A Handling the LCD Module A 1 Appendix B Board Layout B 1 Appendix C Pin Assignments C 1 Appendix D Keyboard Scan Character Codes D 1 Appendix E Key Layout E 1 Appendix F Series Screw Torque List F 1 Appendix G Reliability G 1 ...

Page 11: ...Chapter 1 Hardware Overview ...

Page 12: ...1 Hardware Overview 1 ii Satellite P20 25 Series Maintenance Manual ...

Page 13: ...Disk Drive 8 1 4 Removable Drives 9 1 4 1 3 5 inch Floppy Disk Drive 9 1 4 2 DVD R RW Drive 10 1 4 3 DVD ROM Drive 11 1 4 4 DVD Multi Drive 12 1 4 5 Combo Drive 13 1 5 Power Supply 14 1 6 Batteries 16 1 6 1 Main Battery 16 1 6 2 RTC battery 18 Satellite P20 25 Series Maintenance Manual 1 iii ...

Page 14: ...1 Hardware Overview 1 iv Satellite P20 25 Series Maintenance Manual ...

Page 15: ...C97 CODEC OZ168 for Direct CD Play Controller 8101L for LAN Controller Memory On board with two 200 pin 2 5V SO DIMM connectors supporting DDR RAM cards Maximum upgradable to 1GB by two 512MB SO DIMM modules 256 KB 512KB L2 Cache on CPU External 64MB VGA DDR RAM BIOS 512KB Flash ROM for system BIOS Suspend to RAM Disk Password protection System Windows XP ready with PnP Various hot key for system ...

Page 16: ...102 key enhanced keyboard Includes one Windows key and one Application key TouchPad This pointing control device located in the center of the keyboard palm rest provides convenient control of the cursor without requiring desk space for a mouse The TouchPad incorporates two mouse buttons Display The following types of display are available 17 0 inch WXGA TFT screen 1440 900 pixels Response time 31m...

Page 17: ... hot insertion ejection capability Parallel port A 25 pin parallel port enables connection of a printer or other parallel device The port supports Extended Capabilities Port ECP conforming to IEEE 1284 and is Enhanced Parallel Port IEEE 1284 compliant It features ChiProtect circuitry for protection against damage due to printer power on External monitor port A 15 pin CRT port supporting DDC 2B ena...

Page 18: ... as a TV LAN port The computer comes with an RJ 45 Local Area Network LAN port The LAN port provides connectivity for LAN CD Digital Mode Button and audio video control buttons Unlock the control buttons by pressing the CD Digital Mode Button for three seconds When unlocked the CD or Digital LED will light on the front panel When unlocked press the CD Digital Mode Button briefly to switch between ...

Page 19: ...C Keyboard Controller Embedded Controller One PC87591 chip functions as both KBC and EC KBC has the following functions Scan controller to check status of keyboard matrix Interface controller between the keyboard scan controller and the system Control of switching and simultaneous operation of the accupoint external PS 2 mouse and of the internal keyboard external PS 2 keyboard EC has the followin...

Page 20: ...with Fast Writes Side band Signaling support for enhanced host interface bandwidth up to 2 1Gbytes second with AGP4x 2x support as well Enhanced nView multi display technology supporting any combination of notebook LCD desktop VGA monitor DVI display or TV set with new user applications control interface support capabilities Dual CRTC Simultaneous Dual Display same or different surfaces Integrated...

Page 21: ...nce while minimizing power a critical mobile combination 31x31mm 701 EPBGA package Audio subsystem Cirrus logic ALC202 for AC97 codec Ac 97 2 1 Compatible 20 bit Stereo Digital to Analog Converters 18 bit Stereo Analog to Digital Converters Sample Rate Converters Four Analog Line level Stereo Inputs for LIN_IN CD VIDEO and AUX Two Analog Line level Mono Inputs for Modem and Internal PC Beep Dual S...

Page 22: ... Hard Disk Drive The internal HDD is a random access non volatile storage device It has a non removable 2 5 inch magnetic disk and mini Winchester type magnetic heads The computer supports a 30 40 60 80GB HDD 1 8 Satellite P20 25 Series Maintenance Manual ...

Page 23: ...o drive 1 4 1 3 5 inch Floppy Disk Drive The 3 5 inch FDD is a thin high performance reliable drive that supports 720KB formatted 2DD and 1 44MB formatted 2HD disks The specifications for the FDD are listed in the table below Item 2MB mode 1MB mode Storage capacity KB Unformatted Formatted 2 000 1 440 1 000 720 Number of heads 2 2 Number of cylinders 80 80 Recording method Modified Frequency Modul...

Page 24: ...5 ms 10 3 24X DVD RAM 170 ms 4 7GB 1X Average Random Seek Time DVD ROM 105 ms 3 3 8X CD ROM 100 ms 10 3 24X DVD RAM 120 ms 4 7GB 1X Average Full Stroke Access Time DVD ROM 195 ms 3 3 8X CD ROM 180 ms 10 3 24X DVD RAM 350 ms 4 7GB 1X Buffer capacity 2 Mbytes Max Supported formats CD CD R RW Applicable Write Formats DVD DVD R DVD RW Applicable Write Disc CD CD R RW CD DA CD E G CD MIDI CD ROM CD ROM...

Page 25: ...peed The drive has a transfer rate of max 11 08 Mbyte s for DVD data Toshiba SD C2612 Max 8X DVD ROM Max 24X CD ROM 2X DVD RAM Ver 1 0 1X DVD RAM Ver 2 1 Max 10 820 KByte s DVD ROM Max 3 600KByte s CD ROM Sustained Transfer Rate Buffer capacity Matsushita SR 8177 256 Kbytes Max Toshiba SD C2612 192 Kbytes Max Supported formats CD CD Audio CD ROM mode 1 and mode 2 CD ROM XA mode 2 form 1 and form 2...

Page 26: ...CD RW 4X CLV High Speed CD RW 8XCLV DVD R 2XCLV DVD RW 1X CLV DVD RAM 2X ZCLV 4 7GB Access Speed DVD ROM 180ms Typ Random CD ROM 150ms Typ Random ATAPI Interface PIO mode 16 6 MB s PIO mode4 DMA mode 16 6 MB s Multi word mode2 Ultra DMA mode 33 3 MB s Ultra DMA mode2 Buffer Memory 2MB Supported formats CD CD DA CD ROM CD R W CD R CD ROMXA CD I Ready Video CD PhotoCD multi session Cd Extra CD CD TE...

Page 27: ...s typ TEAC DW 224E 85 CD 90 ms typ 10 3 24X DVD RAM 170 ms Average Random Seek Time DVD 85 ms typ CD 80 ms typ 10 3 24X DVD RAM 130 ms typ Average Full Stroke Access Time DVD 170 ms typ CD 160 ms typ 10 3 24X DVD RAM 300 ms Toshiba SD R2412 Buffer capacity 2 Mbytes Max Supported formats Applicable Write Formats CD CD R CD RW Applicable Write Disc CD CD R CD RW CD DA CD E G CD MIDI CD TEXT CD ROM C...

Page 28: ...ecks the following by GPIO values AC adaptor connected 3 Abnormal check The EC determines whether the condition is abnormal and if so stores an error code into the error register 4 Input port management The EC monitors the following input signal status System power ON OFF status Direct CD power ON OFF status 5 Beep and LED control Beep is caused by the low battery status The EC controls the follow...

Page 29: ...s the low battery point by the gas gauge LB10M The system will be driven by the battery for 12 more minutes LB0 The battery won t be able to drive the system after 3 minutes LB1 The battery can drive the system only during the suspend process LB2 The battery cannot drive the system 9 New battery installation When a new battery is installed the EC communicates with the E2 PROM in the battery to rea...

Page 30: ...ply microprocessor that is mounted on the system board The power supply microprocessor controls whether the charge is on or off and detects a full charge when the AC adaptor and battery are attached to the computer The system charges the battery using quick charge or trickle charge Quick Battery Charge When the AC adaptor is attached there are two types of quick charge quick charge when the system...

Page 31: ...sor automatically stops the charge after eight hours regardless of the condition of the battery Overcharging could cause the battery to explode If any of the following occurs the battery quick charge process stops 1 The battery becomes fully charged 2 The AC adaptor or battery is removed 3 The battery or output voltage is abnormal 4 The battery temperature is abnormal 5 The battery SMBus communica...

Page 32: ... current date time and other setup information in memory while the computer is turned off The table below lists the charging time and data preservation period of the RTC battery The RTC battery is charged by the adaptor or main battery while the computer is powered on Status Time Charging Time power on About 48 hours Data preservation period full charge 2 month 1 18 Satellite P20 25 Series Mainten...

Page 33: ...1 6 Batteries 1 Hardware Overview Satellite P20 25 Series Maintenance Manual 1 19 ...

Page 34: ...Chapter 2 Troubleshooting Procedures ...

Page 35: ...2 Troubleshooting Procedures 2 ii Satellite P20 25 Series Maintenance Manual ...

Page 36: ...7 External USB Devices Troubleshooting 2 19 2 8 TV Out Failure Troubleshooting 2 21 2 9 Printer Port Troubleshooting 2 23 2 10 TouchPad Troubleshooting 2 25 2 11 Speaker Troubleshooting 2 27 2 12 Optical Drive Troubleshooting 2 29 2 13 Modem Troubleshooting 2 32 2 14 PCMCIA Troubleshooting 2 34 2 15 IEEE 1394 Troubleshooting 2 36 2 16 Wireless LAN Troubleshooting 2 38 2 17 Bluetooth Troubleshootin...

Page 37: ...SB device troubleshooting process 2 19 Figure 2 7 TV out troubleshooting process 2 21 Figure 2 8 Printer port troubleshooting process 2 23 Figure 2 9 TouchPad troubleshooting process 2 25 Figure 2 10 Speaker troubleshooting process 2 27 Figure 2 11 Optical drive troubleshooting process 2 30 Figure 2 12 Modem troubleshooting process 2 33 Figure 2 13 PCMCIA troubleshooting process 2 35 Figure 2 14 I...

Page 38: ...lacement procedures are given in Chapter 4 The following tools are necessary for implementing the troubleshooting procedures 1 Diagnostics Disk Repair and Sound Repair 2 Phillips screwdriver 2 mm 3 6mm nut driver for the helix screw nuts on the rear ports for CPU door 4 2DD or 2HD formatted work disk for floppy disk drive testing 5 Printer port loopback connector 6 Sycard PCMCIA test card 7 Cleani...

Page 39: ...ooting procedures verify the following Ask the user if a password is registered and if it is ask him or her to enter the password Verify with the customer that Toshiba Windows XP is installed on the hard disk Operating systems that were not preinstalled by Toshiba can cause the computer to malfunction Make sure all optional equipment is removed from the computer Make sure the floppy disk drive if ...

Page 40: ...s Toshiba W indow s being loaded A Y es Y es Y es Y es Y es Y es Perform the Pow er Supply Troubleshooting procedures in section 2 3 Perform diagnostics program R un C M 165 EX E and select the H A R D D ISK item Perform the D isplay Troubleshooting procedures in section 2 4 Perform the Pow er Supply Troubleshooting procedures in section 2 3 Perform the Pow er Supply Troubleshooting procedures in ...

Page 41: ...m automatically Is an error detected by any of the diagnostics tests System is normal End Yes Yes Yes No Perform the Keyboard Troubleshooting procedures in section 2 6 Perform the FDD Troubleshooting procedures in section 2 5 After confirming which diagnostics test has detected an error perform the appropriate procedure as outlined below No No Yes Figure 2 1 Troubleshooting flowchart 2 2 2 4 Satel...

Page 42: ...d by the floppy disk test perform the FDD Troubleshooting procedures in Section 2 5 4 If an error is detected by the keyboard test perform the Keyboard Troubleshooting procedures in Section 2 6 5 If an error is detected by the printer parallel port test perform the Printer Port Troubleshooting procedures in Section 2 9 6 If an error is detected by the TouchPad test perform the TouchPad Troubleshoo...

Page 43: ...er Troubleshooting procedures in Section 2 11 4 If an error is detected when using the modem perform the Modem Troubleshooting procedures in Section 2 13 5 If an error is detected when using the PCMCIA unit perform the PCMCIA Troubleshooting procedures in Section 2 14 6 If an error is detected when using the IEEE1394 device perform the IEEE1394 device Troubleshooting procedures in Section 2 15 7 I...

Page 44: ... internal power connections secure END Check Power Supply Status Procedure 1 No Yes Check power supply connections Procedure 3 Run diagnostic program Procedure 4 Yes No Replace adaptor battery Procedure 2 No Perform internal connection check Procedure 5 Replace system board Yes Figure 2 2 Power Supply Troubleshooting Process Satellite P20 25 Series Maintenance Manual 2 7 ...

Page 45: ... status Battery LED DC IN LED The power supply controller displays the power supply status through the Battery and the DC IN LEDs as listed in the tables below Table 2 1 Battery LED Battery State LED colors Definition Amber solid on Battery charging with AC Green solid on Battery fully charged by AC Charging Green color off Battery abnormal stop charging with AC Bad cell Overheated Amber blinking ...

Page 46: ...daptor to the DC IN port on the computer and to a power supply If the DC IN LED or Battery LED is not lit go to Procedure 2 Procedure 2 Adaptor battery replacement A faulty adaptor may not supply power or may not charge the battery Perform Check 1 Check 1 Connect a new AC adaptor If the problem is not resolved go to Check 2 Check 2 Insert a new battery If the problem is still not resolved go to Pr...

Page 47: ... are connected correctly go to Check 3 Check 3 Make sure that the DC IN input port socket is firmly secured to the system board of the computer If the DC IN input socket is loose go to Procedure 5 If it is not loose go to Check 4 Check 4 Use a multi meter to make sure that the AC adaptor output voltage is close to 19 V If the output is several percent lower than 19 V go to Check 5 If the output is...

Page 48: ...ck The system board may be disconnected or damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures Check the connection between the AC adaptor and the system board After checking the connection perform Check 1 Check 1 Use a multi meter to make sure that the fuses on the system board are not blown If a fuse is not blown go to Check 2 If a fuse is blown go ...

Page 49: ... lay functio n o k P erfo rm d iagno stic check P ro ced ure 2 N o W as a display pro b lem d etected P erfo rm co nnecto r and replacem ent check P ro ced ure 3 R eplace system bo ard E N D Y es Y es N o D isplay is no t faulty C o ntinue tro ub leshoo ting refer to F igure 2 1 Figure 2 3 Display troubleshooting process 2 12 Satellite P20 25 Series Maintenance Manual ...

Page 50: ...y detects the external display If the external display works correctly the internal LCD may be damaged Go to Procedure 3 If the external monitor appears to have the same problem as the internal monitor the system board may be damaged Go to Procedure 2 Procedure 2 Diagnostic check The Display Test program is stored on the computer s Diagnostics disk This program checks the display controller on the...

Page 51: ...still exits replace the DDR RAM module If the problem still exists perform Check 2 Check 2 Replace the FL inverter board with a new one and test display again If the problem still exists perform Check 3 Check 3 Replace the LCD module with a new one and test display again If the problem still exists perform Check 4 Check 4 Replace the LCD FL cable with a new one and test display again If the proble...

Page 52: ... T W as a F D D p ro b lem detected P erfo rm co nnector and rep lacem ent check P ro ced ure 3 R ep lace system b o ard E N D Y es N o F D D is not faulty C o ntinue troub lesho oting refer to F igure 2 1 P erfo rm d iagno stic check P ro ced ure 2 Figure 2 4 FDD troubleshooting process Satellite P20 25 Series Maintenance Manual 2 15 ...

Page 53: ...ormation about the diagnostics test procedures If no FDD problem is detected by the diagnostic test the FDD is functioning normally If an error occurs go to Procedure 3 Procedure 3 Connector check and replacement check The 3 5 inch FDD is connected to the system board Refer to Chapter 4 Replacement Procedures for instructions on how to disassemble the computer and then perform the following checks...

Page 54: ... ard function ok P erfo rm d iagno stic check P ro ced ure 2 W as a keyb o ard pro b lem d etected P erfo rm co nnecto r and replacem ent check P ro ced ure 3 R eplace system bo ard E N D Y es N o K eyb o ard is no t faulty C o ntinue tro ub leshoo ting refer to F igure 2 1 N o Y es Figure 2 5 Keyboard troubleshooting process Satellite P20 25 Series Maintenance Manual 2 17 ...

Page 55: ...in Chapter 4 Procedure 2 Diagnostic check Run the Diagnostic Program which will automatically execute the Keyboard Test Refer to Chapter 3 Tests and Diagnostics for more information on how to run the program If an error is located go to Procedure 3 If an error does not occur the keyboard is functioning properly Procedure 3 Connector and replacement check The keyboard and or system board may be dis...

Page 56: ...d evice is faulty P erfo rm external d evice and connection check P ro ced ure 1 S T A R T D o es the d evice functio n w hen co nnected to a d ifferent U S B p ort D o es an alternative U S B d evice functio n co rrectly N o Y es N o C heck U S B p o rt co nnectio n Y es Figure 2 6 External USB device troubleshooting process Satellite P20 25 Series Maintenance Manual 2 19 ...

Page 57: ...evice still does not work go to Check 4 If the device functions correctly when connected to another USB port go to Check 3 Check 3 Make sure that the USB socket is firmly secured to the system board of the computer If the malfunction remains the system board may be damaged Go to Procedure 2 Check 4 Connect an alternative USB device to one of the computer s USB ports and then boot the computer The ...

Page 58: ...n check P ro ced ure 1 S T A R T D o es rep lacem ent T V cab le function prop erly P erfo rm T V set check P ro ced ure 2 R ep lace system b o ard E N D N o R ep lace T V cab le N o T V functioning o k Y es U se d ifferent T V set N o Figure 2 7 TV out troubleshooting process Satellite P20 25 Series Maintenance Manual 2 21 ...

Page 59: ...o Check 2 Check 2 Make sure the TV out port is firmly secured to the system board of the computer If the malfunction remains go to Check 3 Check 3 The TV cable may be damaged Replace with a good cable If the malfunction remains go to Procedure 2 Procedure 2 TV set check The TV set may be faulty Perform Check 1 Check 1 Try using the set for television reception If it does not work the set may be da...

Page 60: ...ure 1 Does the print port function ok Perform print port loopback check Procedure 2 Print port is not faulty continue troubleshooting refer to Figure 2 1 Was a print port problem detected Replace system board Procedure 3 END Yes Yes No No Figure 2 8 Printer port troubleshooting process Satellite P20 25 Series Maintenance Manual 2 23 ...

Page 61: ...orm Check 1 Check 1 Make sure printer cable is firmly plugged into both the printer and the printer port of the computer If the cable is connected correctly go to Check 2 Check 2 Make sure the printer port is firmly secured to the system board of the computer If the malfunction remains go to Check 3 Check 3 The printer cable may be damaged Replace with a good cable If the malfunction remains go to...

Page 62: ...ting Procedures 2 10 TouchPad Troubleshooting START END TouchPad connection check Procedure 1 TouchPad replacement check Procedure 2 Replace system board Figure 2 9 TouchPad troubleshooting process Satellite P20 25 Series Maintenance Manual 2 25 ...

Page 63: ...ad FPC cable is firmly connected to the TouchPad and system board Refer to Chapter 4 Replacement Procedures for instructions on how to disassemble the computer and then perform the following checks If any of the connections are loose reconnect firmly If any of the connections is damaged or there is still an error go to Procedure 2 Procedure 2 TouchPad replacement check The TouchPad unit or FPC may...

Page 64: ...st Procedure 2 Do earphones function correctly Perform connection check Procedure 3 Perform replacement check Procedure 4 Perform audio source test Procedure 1 No Yes Yes Replace system board Speakers are not faulty Continue troubleshooting see Figure 2 1 No Figure 2 10 Speaker troubleshooting process Satellite P20 25 Series Maintenance Manual 2 27 ...

Page 65: ... sound problem the problem is in the source devices If all have the same problem continue with Procedure 2 Procedure 2 Earphone test Connect a set if earphones or external speakers If these function correctly go to Procedure 3 If they do not function correctly the system board may be defective or damaged Replace it with a new one Procedure 3 Connection check Disassemble the computer following the ...

Page 66: ...END Perform software check Procedure 3 Perform diagnostic test Procedure 4 Perform connection and replacement check Procedure 5 Perform audio CD check Procedure 1 Perform drive cleaning check Procedure 2 No Yes Replace system board Figure 2 11 Optical drive troubleshooting process Satellite P20 25 Series Maintenance Manual 2 29 ...

Page 67: ...D into the CD DVD drive If it works the problem is not with the drive Go to Procedure 3 If the audio CD does not work go to Procedure 2 If the CD DVD LED on the front panel does not light when the disc is played and the drive gives no response go straight to Procedure 3 Procedure 2 Drive cleaning check Insert a CD DVD drive cleaning disk into the drive clean according to the drive cleaning product...

Page 68: ... the following checks Check 1 Make sure the drive is firmly connected to the system board If the connection is good and there is still an error go to Check 2 Check 2 The drive or drive cable may be defective or damaged Replace each with a new one following the steps in Chapter 4 Replacement Procedures If the drive is still not functioning properly perform Check 3 Check 3 The system board may be da...

Page 69: ...ct telephone signal END Perform connection check Procedure 2 Perform replacement check Procedure 3 Perform telephone line connection check Procedure 1 Check replace telephone line and connections Yes Replace system board No Figure 2 12 Modem troubleshooting process 2 32 Satellite P20 25 Series Maintenance Manual ...

Page 70: ... Perform Check 1 Check 1 Make sure telephone cable is firmly plugged into both the telephone wall socket and the modem port of the computer If the cable is connected correctly go to Check 2 Check 2 Make sure the modem port is firmly secured to the system board of the computer If the malfunction remains go to Check 3 Check 3 The telephone cable may be damaged Replace with a good cable If the malfun...

Page 71: ...ooting START Do errors occur during SYCARD test Perform PCMCIA socket replacement check Procedure 2 Replace system board END PCMCIA unit is not faulty Perform SYCARD test Procedure 1 No Yes Figure 2 13 PCMCIA troubleshooting process 2 34 Satellite P20 25 Series Maintenance Manual ...

Page 72: ...ure the card in fully inserted into the socket before running the program If an error occurs during the SYCARD test perform Procedure 2 If no error occurs it is likely that the original PC card was faulty Procedure 2 PCMCIA socket replacement check The PCMCIA socket may be damaged or defective for instance the socket pins can be bent Disassemble the computer following the steps described in Chapte...

Page 73: ...mission ok Perform diagnostic check Procedure 2 Was an IEEE 1394 problem detected Perform connection and replacement check Procedure 3 Replace system board END Yes Yes IEEE 1394 port and transmission are not faulty Continue troubleshooting refer to Figure 2 1 No No Figure 2 14 IEEE 1394 troubleshooting process 2 36 Satellite P20 25 Series Maintenance Manual ...

Page 74: ...3 Procedure 2 Diagnostic check Run the Diagnostic Program which will automatically execute the IEEE 1394 port test for transmission Refer to Chapter 3 Tests and Diagnostics for more information on how to run the program If an error is located go to Procedure 3 If an error does not occur the 1394 port is functioning properly Procedure 3 Connection and replacement check The transmission cable may be...

Page 75: ...ure 1 Was a wireless LAN problem delected Perform connector and replacement check Procedure 2 Replace wireless LAN antenna unit Replace system board END Yes Wireless LAN system is not faulty Continue troubleshooting refer to Figure 2 1 No Figure 2 15 Wireless LAN troubleshooting process 2 38 Satellite P20 25 Series Maintenance Manual ...

Page 76: ... damaged Disassemble the computer following the steps described in Chapter 4 Replacement Procedures and perform the following checks Check 1 Make sure that the wireless LAN antenna is firmly connected to the wireless LAN unit refer to Chapter 4 for instructions and that the wireless LAN unit is securely slotted into the system board If the problem persists go to Check 2 Check 2 Check that the wire...

Page 77: ...st Procedure 1 Was a Bluetooth problem detected Bluetooth is not faulty Continue troubleshooting refer to Figure 2 1 Replace system board Perform connector and replacement check Procedure 2 Replace Bluetooth module END No Yes Figure 2 16 Bluetooth troubleshooting process 2 40 Satellite P20 25 Series Maintenance Manual ...

Page 78: ...omputer following the steps described in Chapter 4 Replacement Procedures and perform the following checks Check 1 Make sure that the Bluetooth antenna is firmly connected to the Bluetooth module refer to Chapter 4 for instructions and that the Bluetooth FFC is securely slotted into the system board If the problem persists go to Check 2 Check 2 Check that the communication switch is turned to On t...

Page 79: ...2 Troubleshooting Procedures 2 17 Bluetooth Troubleshooting 2 42 Satellite P20 25 Series Maintenance Manual ...

Page 80: ...Chapter 3 Tests and Diagnostics ...

Page 81: ...3 Tests and Diagnostics 3 ii Satellite P20 25 Series Maintenance Manual ...

Page 82: ...1394 Test 3 9 3 7 Speaker Audio Test 3 10 3 8 Fan ON OFF Test 3 11 3 9 Main Battery Charge Test 3 12 3 10 FDD Test 3 13 3 11 CD ROM Test 3 14 3 12 Keyboard Test 3 15 3 13 Mouse Pad Test 3 18 3 14 LCD Pixels Mode Test 3 20 3 15 Lid Switch Test 3 21 3 16 HDD R W Test 3 22 3 17 LAN Test 3 24 3 18 RTC Test 3 26 3 19 CD Control Button Test 3 27 Satellite P20 25 Series Maintenance Manual 3 iii ...

Page 83: ...3 Tests and Diagnostics 3 iv Satellite P20 25 Series Maintenance Manual ...

Page 84: ...llowing functional tests CONFIG CHECK TEST DMI CHECK TEST PIO LOOPBACK TEST IEEE1394 TEST SPEAKER AUDIO TEST FAN ON OFF TEST MAIN BATTERY CHARGE TEST FDD TEST CD ROM TEST KEYBOARD TEST MOUSE PAD TEST LCD PIXELS MODE TEST LID SWITCH TEST HDD R W TEST LAN TEST RTC TEST You will need the following equipment to perform some of the Diagnostic test programs The diagnostics diskette 2 pcs A printer loopb...

Page 85: ...VD ROM drive The T D Program can run by single test item when you press corresponsive English letter of test item or run two or more test items what you like if you choose them by Arrow cursors and Space Bar the wonderful thing is you can setup test loop by Enter button And it also asks you if you like to copy test log file to diskette as reference at the end of test s The test list is as the foll...

Page 86: ... the Diagnostic Test 3 Tests and Diagnostics The below display will show up at the beginning of T D program If the test result passes the following display will show up Satellite P20 25 Series Maintenance Manual 3 3 ...

Page 87: ...t fails the following message displays Then press any key for next actions the below display presented if copying test log file onto diskette is necessary This action will be executed when Y key pressed It will skip this process if N key pressed 3 4 Satellite P20 25 Series Maintenance Manual ...

Page 88: ...And then it will check if it s necessary to leave this program Program will quit when Y key pressed and it will go back main menu for next test if N key pressed NOTE Press Pause to pause a test and Enter to resume Satellite P20 25 Series Maintenance Manual 3 5 ...

Page 89: ...his test needs input unit Part Number by manual to make comparison with known SKU data NOTE To execute this test you must input unit Part Number as Uppercase Character Then it will show its configuration is correct in green color or failed in red color The screen should display as below indicating whether the test is passed or failed after comparison 3 6 Satellite P20 25 Series Maintenance Manual ...

Page 90: ...ame Version Serial Number UUID OEM String It needs to input unit Part Number by manual then show this unit DMI information and makes comparison with SKU data NOTE To execute this test you must input unit Part Number as Uppercase Character The screen should display as below indicating whether the test is passed or failed after comparison Satellite P20 25 Series Maintenance Manual 3 7 ...

Page 91: ...terrupt External Loopback including Pattern test Data Pin test Control register test Control pin Status pin test NOTE Remember to connect a PIO loopback connector to the computer s printer port before test begins The screen should display as below indicating whether the test is passed or failed when finished 3 8 Satellite P20 25 Series Maintenance Manual ...

Page 92: ...IEEE 1394 compatible device 2 An IEEE 1394 transmission line To perform the test 1 Copy the following files from the BTR20 RAR file on the diagnostics disk to a bootable diskette 1394M bat TI exe TI1394 exe 2 Insert the disk then boot the computer 3 Make sure the machines are firmly connected by the IEEE 1394 transmission line 4 Execute 1394M bat on the computer 5 Select the IEEE 1394 transmission...

Page 93: ...nfirm the speaker functions And check both speakers if they are OK within 3 times Beep sound generated NOTE Remember to tune up the volume as Maximum before this test starts The screen should display as below indicating whether the test is passed or failed after the question 3 10 Satellite P20 25 Series Maintenance Manual ...

Page 94: ...ter any key pressed Listen to check whether the fan is working NOTE Remember to approach fan outlet that is near right side of unit whether fan is ON The computer will stop the fan working after any key pressed Listen to check if the fan is OFF it means no rotating sound The screen should display as below indicating whether the test is passed or failed after the question Satellite P20 25 Series Ma...

Page 95: ... test This test shows and measures the main battery Battery type Ni MH Lion Manufacturer Sony Sanyo Remain charge capacity 0 100 Charge function PASS FAIL Battery Is Full showed when remain charge capacity is 100 The screen should display as below indicating whether the test is passed or failed when finished 3 12 Satellite P20 25 Series Maintenance Manual ...

Page 96: ...s three subtests of the 1 Sequential seek verify function Range Track 0 79 2 Funnel code seek verify function Range Track 0 79 3 Write Read Compare pattern function Range Track 75 79 NOTE The write protected device of this formatted diskette should be Disable The subtests run automatically NOTE Press Esc key can skip the current subtest The screen should display as below indicating whether the sub...

Page 97: ...includes two subtests of the 1 Random read partial sequential read function 2 Sequential read function for all surface Each item can be chosen by manual When each test item finished the CD ROM tray will open Check whether the tray can open automatically NOTE Press Esc key can skip the current subtest The screen should display as below indicating whether the subtests pass or fail when finished 3 14...

Page 98: ... for America 3 J JP for Japan When you execute this test the keyboard layout is drawn on the display When any key is pressed the corresponding key on the screen changes to black as shown below It will indicate whether the subtest is passed or failed after the question NOTE The Fn key cannot be tested in the keyboard test To determine whether the Fn key is working correctly press Fn F6 or Fn F7 key...

Page 99: ...3 Tests and Diagnostics 3 12 Keyboard Test 3 16 Satellite P20 25 Series Maintenance Manual ...

Page 100: ...Pressing a key also reveals that key s scan codes in the upper right hand corner of the screen When the key is depressed its make code is displayed When the key is released the break code is shown Satellite P20 25 Series Maintenance Manual 3 17 ...

Page 101: ...4 Swap Buttons Left Right NOTE The Touch Pad test cannot be used to test an external USB mouse The Touch Pad button subtest allows users to test their Touch Pad buttons If the buttons are clicked the cursors should appear in the corresponding box of the button figure that is displayed on the screen as below After checking T Pad buttons and cursor s function use Tab key or use T Pad cursor to click...

Page 102: ...tics NOTE The above figure has three compartments although the Touch Pad installed may only have two buttons In this case the central compartment in the figure does not correspond to any button Satellite P20 25 Series Maintenance Manual 3 19 ...

Page 103: ...f the test 1 Text Mode including 40 25 16 colors and 80 25 2 16colors 2 VGA Mode including 320 200 4 16 256 colors 640 200 2 16 colors 640 350 2 16 colors 640 480 2 16 256 colors 800 600 256 colors and 1024 768 256 colors The screen should display as below indicating whether the test is passed or failed after the question 3 20 Satellite P20 25 Series Maintenance Manual ...

Page 104: ... the lid should enable to turn off the display NOTE Remember to tune up the volume as Maximum before this test starts Follow below steps to run this test 1 Close the LCD cover 2 Heard 3 Beep sound happened during LCD closed 3 Open the LCD Then it will indicate whether the test is passed or failed Satellite P20 25 Series Maintenance Manual 3 21 ...

Page 105: ...includes three subtests of the 1 Sequential read all surface 2 Sequential write all surface 3 Partial W R Random W R After the choice is made HDD information will show as below Model name Firmware revision Serial number CHR Cylinder High Register mode including cylinders heads sectors and sizes LBA Logical Block Addressing mode including sectors and sizes Support Ultra DMA Mode Support PIO Mode 3 ...

Page 106: ...eys can terminate the current subtest The screen should display as previous picture indicating whether the subtest is passed or failed when finished NOTE The AC adaptor should be connected to successfully run this test Satellite P20 25 Series Maintenance Manual 3 23 ...

Page 107: ... IO Base Port 3000H IRQ AH it s IRQ 10 Node it is MAC Address Line Frame 1514 Bytes Line Speed 100Mbps or 10 Mbps Bus ID it s 4 The LAN test includes two subtests of the 1 Speed100 in test cluding Ethernet_802 2 Ethernet_II Ethernet_SNAP and Ethernet_802 3 All items are in LSB mode 2 Speed10 including Ethernet_802 2 in LSB mode The subtests run automatically 3 24 Satellite P20 25 Series Maintenanc...

Page 108: ...3 17 LAN Test 3 Tests and Diagnostics The screen should display as below indicating whether the subtests pass or fail when finished Satellite P20 25 Series Maintenance Manual 3 25 ...

Page 109: ... computer s RTC Real Time Clock and calendar functions by comparing the DOS and CMOS values The test runs automatically The screen should display as below indicating whether the test is passed or failed when finished 3 26 Satellite P20 25 Series Maintenance Manual ...

Page 110: ...he user to manually test each of the five CD control buttons The figure below will be displayed Press each of the buttons on the front panel in turn A yellow bar will appear on the relevant section of the figure if the button passes the test Press Esc to quit the test Satellite P20 25 Series Maintenance Manual 3 27 ...

Page 111: ...3 Tests and Diagnostics 3 18 RTC Test 3 28 Satellite P20 25 Series Maintenance Manual ...

Page 112: ...Chapter 4 Replacement Procedures ...

Page 113: ...4 Replacement Procedures 4 ii Satellite P20 25 Series Maintenance Manual ...

Page 114: ...oth Unit 4 31 4 12 CPU 4 34 4 13 HDD 4 38 4 14 Keyboard 4 42 4 15 Top Cover 4 45 4 16 Function Key Board 4 48 4 17 LED Power Button Board 4 50 4 18 TouchPad 4 52 4 19 Display Assembly 4 54 4 20 System Board 4 58 4 21 Direct Play Button Board 4 62 4 22 CIR Board 4 64 4 23 Direct play LED board 4 66 4 24 Audio Board 4 68 4 25 Speakers 4 70 4 26 Fan Set 4 73 4 27 Display Mask 4 76 4 28 FL Inverter Bo...

Page 115: ...4 Replacement Procedures 4 iv Satellite P20 25 Series Maintenance Manual ...

Page 116: ...uch as the optional PC Card then follow the chart downward removing only those FRUs necessary to reach the one you think is causing the computer to operate improperly Refer to the example on the following page Battery pack Main Module HDD Keyboard Top Cover PC Card Wireless LAN Unit Expansion Memory Module CPU Modem Bluetooth Unit Display Assembly Display Mask System Board FL Inverter Board Fan Se...

Page 117: ...ver is in turn overlapped by the removable main module HDD and keyboard Always starts the disassembly process by removing the battery pack Battery pack Main Module HDD Keyboard Top Cover PC Card Wireless LAN Unit Expansion Memory Module CPU Modem Bluetooth Unit Display Assembly Display Mask System Board FL Inverter Board Fan Set LCD Module Direct Play Button Board CIR Board Audio Board Speakers LE...

Page 118: ...ories such as necklaces bracelets or rings Batteries in the computer retain an electrical charge so there is danger of electrical shock even when the computer is disconnected from an AC power source 3 Never work with wet or damp hands 4 The computer contains sharp edges and corners be careful not to injure yourself 5 Make sure that all replacement components meet the specifications for the compute...

Page 119: ...apters 2 and 3 of this manual 5 Do not perform any operations that are not necessary and use only the described procedures for disassembling and installing FRUs in the computer 6 After removing parts from the computer place them in a safe place away from the computer so they will not be damaged and will not interfere with your work 7 You will remove and replace many screws when you disassemble the...

Page 120: ...mply pulling them apart or pushing them together Assembly Procedures After you have disassembled the computer and fixed or repaired the problem that was causing the computer to operate abnormally you will need to reassemble the computer Install all the removed FRUs following the steps described in the corresponding sections in this chapter While assembling the computer remember the following gener...

Page 121: ...damaged or destroyed parts The following equipment is necessary to disassemble and reassemble the computer One M2 Phillips screwdriver to remove and replace screws One T5 security screwdriver Tweezers to lift out screws that you cannot grasp with your fingers ESD mats for the floor and the table you are working on ESD wrist strap or heel grounder Anti static carpeting or flooring Air ionizers in h...

Page 122: ...1 Turn the computer upside down 2 Unlock the 2nd module bay lock 3 Slide the 2nd module bay latch to release it then pull the battery pack out from the bay Fig 4 1 Removing the battery pack NOTE For environmental reasons do not throw away a spent battery pack Please return spent battery packs to Toshiba Satellite P20 25 Series Maintenance Manual 4 7 ...

Page 123: ...ARNING The battery is a lithium ion battery and can explode if not properly replaced used handled or disposed of Use only batteries recommended by Toshiba as replacements 1 Slide the battery pack into the 2nd module bay The 2nd module bay latch will click automatically and secure the battery pack in position 2 Engage the 2nd module bay lock 4 8 Satellite P20 25 Series Maintenance Manual ...

Page 124: ...ard Removing a PC Card To remove a PC Card follow the steps below 1 Push the eject button for the card you want to release The button will pop out when you release it Fig 4 2 Pressing the eject button Satellite P20 25 Series Maintenance Manual 4 9 ...

Page 125: ...Card 2 Push the eject button once more to pop the PC Card out slightly 3 Grasp the PC Card and remove it Fig 4 3 Removing the PC Card 4 Push the eject button back into place if necessary 4 10 Satellite P20 25 Series Maintenance Manual ...

Page 126: ... To install the PC Card follow the steps below and refer to the figures in the preceding section 1 Make sure the two eject buttons do not stick out 2 Insert the PC Card and press gently to ensure a firm connection Satellite P20 25 Series Maintenance Manual 4 11 ...

Page 127: ...used for the removable battery but it may also be used with a second Optical Media Drive or a TV tuner module This section covers removal and installation of devices from the main module bay For removal and installation of devices from the 2nd module bay refer to Section 4 2 Battery Disassembly and assembly procedures for the optical drive TV tuner removable HDD and FDD are given in later sections...

Page 128: ...ove the main module follow the steps below 1 Turn the computer upside down 2 Unlock the main module bay lock 3 Slide the main module bay latch to release it then pull the main module out from the bay Fig 4 4 Removing the main module Satellite P20 25 Series Maintenance Manual 4 13 ...

Page 129: ...ain module bay follow the steps below and refer to the figure in the preceding section 1 Slide the device into the main module bay The main module bay latch will click automatically and secure the device in position 2 Engage the main module bay latch lock 4 14 Satellite P20 25 Series Maintenance Manual ...

Page 130: ...e the optical drive first remove the drive from its module bay then follow the steps below 1 Remove three black M2 8 screws and one silver M2 4 screw securing the back bracket plate Lift off the back bracket plate 2 Remove four silver M2 4 screws two from each side of the drive securing the main bracket Lift off the main bracket Fig 4 5 Removing the bracket screws Satellite P20 25 Series Maintenan...

Page 131: ...4 Replacement Procedures 4 5 Optical Drive 3 Pull the optical drive board from the rear of the drive 4 16 Satellite P20 25 Series Maintenance Manual ...

Page 132: ... in the preceding section 1 Fit the optical drive board to the rear panel of the optical drive 2 Place the drive in the main bracket and secure with four silver M2 4 screws two from each side of the drive 3 Position the back bracket plate and secure with three black M2 8 screws and one silver M2 4 screw Satellite P20 25 Series Maintenance Manual 4 17 ...

Page 133: ... tuner from its module bay then follow the steps below 1 Remove seven M2 8 screws securing the TV tuner case 2 Lift the lid off the TV tuner case and lift out the TV tuner board if appropriate detach the TV tuner transfer assembly FPC Fig 4 6 Removing the TV tuner case screws 4 18 Satellite P20 25 Series Maintenance Manual ...

Page 134: ...ollow the steps below and refer to the figure in the preceding section 1 Position the TV tuner board in the TV tuner case and if appropriate attach the TV tuner transfer assembly FPC 2 Secure the lid of the TV tuner case with seven M2 8 screws Satellite P20 25 Series Maintenance Manual 4 19 ...

Page 135: ...ble the removable HDD first remove the drive from its module bay then follow the steps below 1 Release the lid latch of the removable HDD container and open the HDD container lid 2 Ease the HDD out of the container Fig 4 7 Opening the removable HDD container 4 20 Satellite P20 25 Series Maintenance Manual ...

Page 136: ...dling the HDD do not press the top surface as shown by the arrow Hold it by the sides 3 Remove the four M3 3 screws that secure the HDD case to the HDD 4 Lift off the HDD case Fig 4 8 Removing the HDD case screws Satellite P20 25 Series Maintenance Manual 4 21 ...

Page 137: ...4 Replacement Procedures 4 7 Removable HDD 5 Grasp the HDD and peel off the aluminum HDD shielding 6 Gently pull the HDD connector off the HDD 4 22 Satellite P20 25 Series Maintenance Manual ...

Page 138: ...he HDD in the aluminum HDD shielding ensuring that the circuit board face of the drive is covered by the black part of the shielding The circuit board must not come into contact with the silver portion of the shielding 3 Seat the HDD in the HDD case and secure with four M3 3 screws 4 Slide the HDD into the HDD container 5 Close the HDD container lid and lock it with the latch Satellite P20 25 Seri...

Page 139: ...DD first remove the drive from its module bay then follow the steps below 1 Remove two M2 5 4 screws from each side of the drive and three M2 5 4 screws securing the rear panel 2 Lift off the FDD bracket Fig 4 9 Removing the FDD bracket screws 3 Release the FDD FPC and remove 4 24 Satellite P20 25 Series Maintenance Manual ...

Page 140: ...le a FDD follow the steps below and refer to the figure in the preceding section 1 Attach the FDD FPC 2 Place the FDD in the FDD bracket and secure with two M2 5 4 screws on each side of the drive and three M2 5x4 screws on the rear panel Satellite P20 25 Series Maintenance Manual 4 25 ...

Page 141: ...s LAN unit first remove the battery pack then follow the steps below 1 Turn the computer upside down and loosen two embedded screws securing the wireless LAN compartment cover 2 Lift off the wireless LAN compartment cover Fig 4 10 Removing the wireless LAN compartment cover 4 26 Satellite P20 25 Series Maintenance Manual ...

Page 142: ...n the latches One end of the wireless LAN unit will pop up 5 Grasp the wireless LAN unit and pull it out Fig 4 11 Removing the wireless LAN unit CAUTION Do not touch the connectors on the wireless LAN unit or on the computer Debris on the connectors may cause malfunction Satellite P20 25 Series Maintenance Manual 4 27 ...

Page 143: ...rs and press carefully to ensure firm contact CAUTION Do not touch the connectors on the wireless LAN unit or on the computer Debris on the connectors may cause malfunction 4 Gently push the wireless LAN unit down until the latches engage the unit to hold it in place 5 Attach the ends of the wireless LAN antenna The black antenna cable should be attached to the connector nearer the rear side of th...

Page 144: ...e the expansion memory first remove the battery pack then follow the steps below 1 Turn the computer upside down 2 Remove two embedded screws securing the expansion memory cover 3 Lift off the expansion memory cover Fig 4 12 Removing the expansion memory cover Satellite P20 25 Series Maintenance Manual 4 29 ...

Page 145: ...expansion memory will pop up 5 Grasp the expansion memory and pull it out Fig 4 13 Removing the expansion memory CAUTION Do not touch the connectors on the expansion memory or on the computer Debris on the connectors may cause memory access problems 4 30 Satellite P20 25 Series Maintenance Manual ...

Page 146: ... memory cover 4 Fit the expansion memory s connectors into the computer s connectors and press carefully to ensure firm contact CAUTION Do not touch the connectors on the expansion memory or on the computer Debris on the connectors may cause memory access problems 5 Gently push the expansion memory down until latches on either side engage the expansion memory to hold it in place 6 Seat the expansi...

Page 147: ...edures are the same for both Removing the Modem Bluetooth Unit To remove the installed modem or Bluetooth unit first remove the battery pack then follow the steps below 1 Turn the computer upside down 2 Remove two embedded screws securing the modem Bluetooth unit cover 3 Lift off the modem Bluetooth unit cover Fig 4 14 Removing the modem Bluetooth unit cover 4 32 Satellite P20 25 Series Maintenanc...

Page 148: ...unit Fig 4 15 Removing the modem Bluetooth unit screws 5 Carefully lift the unit off its connector 6 If a modem is being removed disconnect its power cable from the system board If a Bluetooth unit is being removed disconnect its FPC cable from the system board Satellite P20 25 Series Maintenance Manual 4 33 ...

Page 149: ...2 Remove two embedded screws securing the modem Bluetooth unit cover 3 Lift off the modem Bluetooth unit cover 4 If a modem is being fitted connect the power cable If a Bluetooth unit is being fitted connect the FPC cable 5 Fit the modem Bluetooth unit onto its connector and secure with two M2 5 3 screws 6 Replace the modem Bluetooth unit cover and secure with two embedded screws 4 34 Satellite P2...

Page 150: ... remove the battery pack then follow the steps below 1 Turn the computer upside down and remove five embedded security screws securing the CPU compartment cover Remove the CPU compartment cover Fig 4 16 Removing the CPU compartment cover Satellite P20 25 Series Maintenance Manual 4 35 ...

Page 151: ... the CPU insert a small flathead screwdriver into the hole on the heat sink to gently lever it off Fig 4 17 Removing the heat sink CAUTION If you remove the heat sink you should use the CPU grease tool to remove the grease on the CPU and heat sink Reapply fresh grease before replacing the heat sink 4 36 Satellite P20 25 Series Maintenance Manual ...

Page 152: ...cam on the CPU socket with a flat blade screwdriver so that the notch on the cam is aligned with the open side of the CPU socket to unlock the CPU Fig 4 18 Removing the CPU 5 Gently lift out the CPU Satellite P20 25 Series Maintenance Manual 4 37 ...

Page 153: ...ligned with the open position 2 Seat the CPU to align the triangle mark on the CPU with the one on the CPU socket Make sure the alignment is exact to avoid damaging pins on the CPU 3 Press the CPU softly with your fingers and turn the cam on the CPU socket to the closed position with a flat blade screwdriver to secure the CPU 4 Seat the heat sink over the CPU and secure with four screws in the ord...

Page 154: ...4 13 HDD 4 Replacement Procedures 4 13 HDD CAUTION When handling the HDD do not press the top surface as shown by the arrow Hold it by the sides Satellite P20 25 Series Maintenance Manual 4 39 ...

Page 155: ...llow the steps below 1 Turn the computer upside down 2 Remove two M2 5 4 black screws securing the HDD and lift out the HDD unit Fig 4 19 Removing the HDD unit cover screws NOTE It is not necessary to remove the HDD case unless you are going to replace the HDD 4 40 Satellite P20 25 Series Maintenance Manual ...

Page 156: ...the HDD Fig 4 20 Removing the HDD unit case screws 4 Lift off the HDD case 5 Grasp the HDD at the side and peel off the aluminum HDD shielding 6 Gently pull the HDD connector off the HDD Fig 4 21 Removing the aluminum HDD shielding and connector Satellite P20 25 Series Maintenance Manual 4 41 ...

Page 157: ...to damage the connector pins 2 Wrap the HDD in the HDD shielding ensuring that the circuit board face of the drive is covered by the black part of the shielding The circuit board must not come into contact with the silver portion 3 Seat the HDD in the HDD case and secure with four M3 3 screws 4 Seat the HDD unit in the HDD slot and secure it with two M2 5 4 black screws 4 42 Satellite P20 25 Serie...

Page 158: ...yboard first remove the battery pack then follow the steps below 1 Open the display panel 2 Insert a thin tool into each of the narrow holes in the strip cover and lever the strip cover up to release its latches Fig 4 22 Removing the strip cover Satellite P20 25 Series Maintenance Manual 4 43 ...

Page 159: ...er screws securing the keyboard 4 Lift the keyboard out and place over the display hinges revealing the keyboard cable 5 Disconnect the keyboard cable and remove the keyboard Fig 4 23 Removing keyboard cable and keyboard 4 44 Satellite P20 Series Maintenance Manual ...

Page 160: ... install the keyboard follow the steps below and refer to the figures in the preceding section 1 Connect the keyboard cable to the system board 2 Set the keyboard in place and secure it with two M2 5 3 silver screws 3 Seat the strip cover and press down to ensure the strip cover latches engage locking it in place ...

Page 161: ... follow the steps below 1 Remove the keyboard HDD and main module 2 Remove seven M2 5 6 screws from the keyboard tray securing the top cover 3 Detach the following three cables LED power button board FPC Function key board FPC TouchPad FPC Fig 4 24 Removing the top cover screws and cables Satellite P20 25 Series Maintenance Manual 4 45 ...

Page 162: ...sixteen screws Three M2 5 3 silver screws Two M2 5 4 black screws Five M2 5 6 black screws Six M2 5 14 black screws Fig 4 25 Removing the screws from the computer underside 5 Turn the computer upright open the display cover and lift off the top cover 4 46 Satellite P20 25 Series Maintenance Manual ...

Page 163: ...p cover and secure the following three cables LED power button board FPC Function key board FPC TouchPad FPC 2 Secure the top cover with seven M2 5 6 screws 3 Turn the computer upside down and secure the following sixteen screws Three M2 5 3 silver screws Two M2 5 4 black screws Five M2 5 6 black screws Six M2 5 14 black screws Satellite P20 25 Series Maintenance Manual 4 47 ...

Page 164: ...ey Board first remove the battery pack then follow the steps below 1 Remove the keyboard HDD main module and top cover 2 Place the top cover face down 3 Remove two M2 5 3 silver screws securing the function key board Remove function key board Fig 4 26 Removing the function key board 4 48 Satellite P20 25 Series Maintenance Manual ...

Page 165: ...To install the Function Key Board follow the steps below and refer to the figure in the preceding section 1 Feed the function key board FPC through the top cover 2 Position the function key board and secure with two M2 5 3 silver screws Satellite P20 25 Series Maintenance Manual 4 49 ...

Page 166: ...ton Board first remove the battery pack then follow the steps below 1 Remove the keyboard HDD main module and top cover 2 Place the top cover face down 3 Remove four M2 5 3 silver screws securing the LED power button board Remove LED power button board Fig 4 27 Removing the LED power button board 4 50 Satellite P20 25 Series Maintenance Manual ...

Page 167: ... install the LED Power Button Board follow the steps below and refer to the figure in the preceding section 1 Feed the LED power button board FPC through the top cover 2 Position the LED power button board and secure with four M2 5 3 silver screws Satellite P20 25 Series Maintenance Manual 4 51 ...

Page 168: ...er face down 3 Disconnect the TouchPad board FPC cable from both the TouchPad button board and the TouchPad 4 Remove five M2 5 3 silver screws securing the TouchPad cover 5 Lift out the TouchPad cover followed by the TouchPad 6 If you need to replace the TouchPad button board remove two M2 5 3 silver screws securing it then lift it out Fig 4 28 Removing the TouchPad button board 4 52 Satellite P20...

Page 169: ... With the top cover upside down place the TouchPad and TouchPad Button Board in position Secure the TouchPad Button Board with two M2 5 3 silver screws 2 Position the TouchPad cover and secure with five M2 5 3 silver screws 3 Connect the TouchPad board FPC cable to both the TouchPad button board and the TouchPad Satellite P20 25 Series Maintenance Manual 4 53 ...

Page 170: ...computer upside down and loosen two embedded screws securing the wireless LAN compartment cover 2 Lift off the wireless LAN compartment cover Fig 4 29 Removing the wireless LAN compartment cover 3 Detach the two ends of the wireless LAN antenna 4 Remove the keyboard HDD main module and top cover 5 Feed the wireless LAN antenna through the system board 4 54 Satellite P20 25 Series Maintenance Manua...

Page 171: ... 5 6 screws from the I O cover Fig 4 30 Removing the wireless LAN compartment cover 7 Remove one m2 5 12 screw securing the left end of the hinge cover and one m2 5 3 silver screw securing the right end 8 Lift off the hinge cover Fig 4 31 Removing the hinge cover Satellite P20 25 Series Maintenance Manual 4 55 ...

Page 172: ...emove two M2 5 6 screws from the hinges and release the display cable 10 Pull on the attached handle to detach the display cable from the system board 11 Lift the display assembly off the computer chassis 4 56 Satellite P20 25 Series Maintenance Manual ...

Page 173: ...ss LAN antenna to the card The black antenna cable should be attached to the connector nearer the rear side of the computer the white antenna cable to the connector closer to the front panel 4 Secure the hinges with two M2 5 6 screws Use the same screw to secure the display cable to the left side hinge 5 Attach the display cable to its connector on the system board 6 Seat the hinge cover and secur...

Page 174: ...ttery pack then follow the steps below 1 Turn the computer upside down and remove five embedded security screws securing the CPU compartment cover Remove the CPU compartment cover Fig 4 32 Removing the CPU compartment cover 2 Disconnect the three fan cables Fig 4 33 Removing the fan cables 4 58 Satellite P20 Series Maintenance Manual ...

Page 175: ...ds wireless LAN cards PC card s top cover and display assembly 4 Remove nine M2 5 4 screws securing the low I O cover five from the top two from the rear and two from the base 5 Remove the four hexagonal port screws Fig 4 34 Removing the hexagonal port screws 6 Remove the low I O cover Satellite P20 Series Maintenance Manual 4 59 ...

Page 176: ...m board to the computer chassis 8 Detach the following five cables from the system board Right side speaker cable Direct play LED FPC cable CIR FFC cable Direct play button FFC Audio board FFC cable Fig 4 35 Removing the system board screws and cables 4 60 Satellite P20 Series Maintenance Manual ...

Page 177: ...PC cable CIR FFC cable Direct play button FFC Audio board FFC cable 3 Position the low I O cover 4 Secure the parallel port and external monitor port with two hexagonal port screws each 5 Secure the low I O cover with nine M2 5 4 screws five to the top two to the rear and two to the base 6 Replace the other removed FRUs keyboard HDD main module CPU modem or Bluetooth unit expansion memory cards wi...

Page 178: ... and top cover 2 Release the direct play button FFC from the system board 3 Remove two M2 5 6 screws securing the direct play cover assembly 4 Ease the direct play cover assembly forward through the front panel Fig 4 36 Removing the Direct Play cover assembly 5 Remove one M2 3 screw securing the direct play button board 6 Remove two M2 3 screws securing the button board to the bracket Lift off the...

Page 179: ...r to the figure in the preceding section 1 Secure the direct play button board to the bracket with two M2 3 screws 2 Secure the combined unit to the direct play cover assembly with one M2 3 screw 3 Seat the direct play cover assembly and secure with two M2 5 6 screws 4 Attach the direct play button FFC to the system board Satellite P20 Series Maintenance Manual 4 63 ...

Page 180: ...DD main module and top cover 2 Release the CIR FFC and direct play button FFC from the system board 3 Remove two M2 5 6 screws securing the direct play cover assembly 4 Ease the direct play cover assembly forward through the front panel 5 Remove one M2 5 6 screw securing the CIR board Lift out the CIR board Fig 4 37 Removing the CIR board 4 64 Satellite P20 Series Maintenance Manual ...

Page 181: ...e steps below and refer to the figure in the preceding section 1 Seat the CIR board and secure with one M2 5 6 screw 2 Seat the direct play cover assembly and secure with two M2 5 6 screws 3 Attach the CIR FFC and direct play button FFC to the system board Satellite P20 Series Maintenance Manual 4 65 ...

Page 182: ...play LED board first remove the battery pack then follow the steps below 1 Remove the keyboard HDD main module and top cover 2 Release the direct play LED FPC from the system board 3 Peel the direct play LED board off the chassis and lift out Fig 4 38 Removing the direct play LED board 4 66 Satellite P20 Series Maintenance Manual ...

Page 183: ...y LED Board To install the direct play LED board follow the steps below and refer to the figure in the preceding section 1 Stick the direct play LED board to the tape on the chassis 2 Secure the direct play LED FPC to the system board Satellite P20 Series Maintenance Manual 4 67 ...

Page 184: ...ve the battery pack then follow the steps below 1 Remove the keyboard HDD main module and top cover 2 Detach the left side speaker cable and audio board FFC cable from the audio board 3 Remove two M2 5 6 screws securing the audio board Fig 4 39 Removing the audio board screws 4 68 Satellite P20 Series Maintenance Manual ...

Page 185: ...ard To install the audio board follow the steps below and refer to the figure in the preceding section 1 Seat the audio board and secure with two M2 5 6 screws 2 Attach the left side speaker cable and audio board FFC cable Satellite P20 Series Maintenance Manual 4 69 ...

Page 186: ...the speakers first remove the battery pack then follow the steps below 1 Remove the keyboard HDD main module and top cover 2 Turn the computer upside down and remove one M2 5 4 screw securing each speaker Fig 4 40 Removing the speaker screws 4 70 Satellite P20 Series Maintenance Manual ...

Page 187: ...ight Detach the left side speaker cable from the audio board and the right side speaker cable from the system board 4 Remove two M2 5 4 screws securing each speaker 5 Lift out each speaker Fig 4 41 Removing the speakers Satellite P20 Series Maintenance Manual 4 71 ...

Page 188: ...ction 1 Seat each speaker The speaker cases are marked with L left and R right 2 Secure each speaker with two M2 5 4 screws 3 Attach the left side speaker cable to the audio board and the right side speaker cable to the system board 4 Turn the computer upside down and secure each speaker with one M2 5 4 screw 4 72 Satellite P20 Series Maintenance Manual ...

Page 189: ...steps below 1 Remove the keyboard HDD main module CPU modem or Bluetooth unit expansion memory cards wireless LAN cards PC card s top cover and system board 2 Remove five M2 5 4 screws and one M2 5 3 screw securing the fan set from inside the chassis Fig 4 42 Removing the inner chassis fan screws Satellite P20 Series Maintenance Manual 4 73 ...

Page 190: ...res 4 26 Fan Set 3 Turn the computer over and remove seven M2 5 4 screws securing the fan set from the base Fig 4 43 Removing the outer chassis fan screws 4 Lift out the fan set 4 74 Satellite P20 Series Maintenance Manual ...

Page 191: ...g the Fan Set To install the fan set follow the steps below and refer to the figure in the preceding section 1 Seat the fan set and secure from inside the chassis with five M2 5 4 screws and one M2 5 3 screw 2 Turn the computer over and secure the fan set with seven M2 5 4 screws from the base ...

Page 192: ...eps below 1 Remove the main module HDD keyboard top cover and display assembly 2 Remove six mask seals to expose six screws securing the display mask 3 Remove two M2 3 screws from the top of display assembly and another four M2 5 6 screws that were covered by the mask seals Fig 4 44 Removing the display mask screws 4 76 Satellite P20 25 Series Maintenance Manual ...

Page 193: ...g the two sides five snaps on each side and the bottom edge four snaps Installing the Display Mask To install the display mask follow the steps below and refer to the figures in the preceding section 1 Seat the display mask and secure the snaps on each side 2 Secure the display mask with two M2 3 screws at the top of display assembly and another four M2 5 6 screws nearer the base 3 Cover the six s...

Page 194: ...steps below 1 Remove the main module HDD keyboard top cover display assembly and display mask 2 Remove one M2x3 screw securing the LCD cable 3 Remove one M2x3 screw securing the FL inverter board 4 Lift up the FL inverter board and detach the FL cable and HV cable Remove the FL inverter board Fig 4 45 Removing the FL inverter board 4 78 Satellite P20 25 Series Maintenance Manual ...

Page 195: ...o the figure in the preceding section 1 Connect the FL cable and HV cable to the FL inverter board 2 Seat the FL inverter board and secure it with t one M2x3 screw 3 Secure the LCD cable with one M2x3 screw 4 Install the display mask display assembly top cover keyboard HDD main module and battery pack Satellite P20 25 Series Maintenance Manual 4 79 ...

Page 196: ... the battery pack then follow the steps below 1 Remove the main module HDD keyboard top cover display assembly display mask and FL inverter board 2 Remove six M2 5 6 screws securing the LCD module 3 Lift the LCD module out of the LCD cover Fig 4 46 Removing the LCD module 4 80 Satellite P20 25 Series Maintenance Manual ...

Page 197: ... vary on different models 5 Remove the LCD bracket 6 Peel away the Kapton film securing the LCD cable 7 Pull out LCD cable from LCD connector Fig 4 47 Removing the LCD cable NOTE If the LCD module malfunctions remove the LCD cable and LCD bracket Then replace the whole LCD module unit Satellite P20 25 Series Maintenance Manual 4 81 ...

Page 198: ...the LCD connector on the back of the LCD module 2 Secure the LCD cable with Kapton film 3 Secure the LCD bracket to the LCD module with eight M2 3 screws the number of bracket screws may vary on different models 4 Position the LCD module in place 5 Secure the LCD module with six M2 5 6 screws First secure the screws one on each side nearer the base of the module then secure the screws nearer the t...

Page 199: ...Appendices ...

Page 200: ...Appendices App ii SatelliteP20 25 Series Maintenance Manual ...

Page 201: ...14 Parallel I F 25 pin C 10 C 8 JP21 PC Card I F 150 pin C 11 C 9 JP27 Mini PCI I F 124 pin C 14 C 10 JP22 JP23 JP25 Fan I F 3 pin C 16 C 11 AC Adaptor Connector 3 pin Find Power Team C 16 C 12 Microphone 6 pin C 16 C 13 Headphone Connector 6 pin C 17 Appendix D Keyboard Scan Character Codes D 1 Appendix E Key Layout E 1 E 1 United States US Keyboard E 1 E 2 United Kingdom UK Keyboard E 1 E 3 Span...

Page 202: ...Appendices Figures Figure B 1 System Board FRDSY Bottom View B 1 Figure B 2 System Board FRDSY Top View B 2 App iv SatelliteP20 25 Series Maintenance Manual ...

Page 203: ...14 Table C 9 1 JP22 Fan I F pin assignments 3 pin C 16 Table C 9 2 JP23 Fan I F pin assignments 3 pin C 16 Table C 9 3 JP25 Fan I F pin assignments 4 pin C 16 Table C 10 AC Adaptor Connector pin assignments 3 pin C 16 Table C 11 Microphone I F pin assignments 6 pin C 16 Table C 12 Headphone Connector pin assignments 6 pin C 17 Table D 1 Scan codes set 1 and set 2 1 4 D 1 Table D 2 Scan codes with ...

Page 204: ...Appendices App vi SatelliteP20 25 Series Maintenance Manual ...

Page 205: ...CD cover be sure to seat it so that it is properly aligned and maximum visibility of the display is maintained 2 Be careful to align the holes at the four corners of the LCD module with the corresponding holes in the LCD cover before securing the module with screws Do not force the module into place because stress can affect its performance Note The panel s polarized surface is easily scarred so h...

Page 206: ...surface is very dirty we recommend a CRT cleaning agent Apply the agent to a cloth and then wipe the panel s surface Do not apply cleanser directly to the panel CRT Cleaner 4 If water or other liquid is left on the panel s surface for a long period it can change the screen s tint or stain it Be sure to quickly wipe off any liquid A 2 Satellite P20 25 Series Maintenance Manual ...

Page 207: ...t strike a hard object which could cause breakage or cracks 6 CMOS LSI circuits are used in the module so guard against damage from electrostatic discharge Be sure to wear a wrist or ankle ground when handling the module Satellite P20 25 Series Maintenance Manual A 3 ...

Page 208: ... periods 8 Do not store the module at temperatures below specifications Cold can cause the liquid crystals to freeze lose their elasticity or otherwise suffer damage 9 Do not disassemble the LCD module Disassembly can cause malfunctions A 4 Satellite P20 25 Series Maintenance Manual ...

Page 209: ...he module do not use packing material that contains epoxy resin amine or silicon glue alcohol or oxime These materials can release gas that can damage the panel s polarization Satellite P20 25 Series Maintenance Manual A 5 ...

Page 210: ...A 6 Satellite P20 25 Series Maintenance Manual ...

Page 211: ...Satellite P20 25 Series Maintenance Manual B 1 Appendix B Board Layout B 1 System Board FRDSY Bottom View Figure B 1 System board FRDSY layout Bottom ...

Page 212: ...B 2 Satellite P20 25 Series Maintenance Manual B 2 System Board FRDSY Top View Figure B 2 System board FRDSY layout Top ...

Page 213: ...tel 82801 D U16 BIOS ROM 512K8 90 E U35 VGA Chip GO5200 F U29 U32 U39 U40 4M32 VRAM G U58 AC97 Codec ALC202 H U8 SUPER I O LPC47N227 I U25 CIR Control J U50 KBC EC PC87591L K JP5 Keyboard Connector L U5 CARDBUS SD Controller T7L58XB 0101 M U42 Clock Generator ICS 952623CG N U59 Audio Amplifier Chip TPA6011 O SW1 Lid Switch P U46 OZ 168T Q U52 1394 Fire Wire Controller TSB43AB21A ...

Page 214: ...tor H JP20 S Video Connector I JP34 HDD Connector J JP24 JP26 SODIMM Socket K JP19 MDC Module Connector L JP21 PCMCIA Connector M PCN2 Battery Connector N JP22 JP23 JP25 Fan Connector O U28 LAN Transformer P JP35 1394 Connector Q JP2 SD Socket R JP1 LVDS Connector S JP27 MINI PCI T JP4 POWER FPC CONNECTOR U JP8 TPA FPC CONNECTOR V JP10 AUDIO FPC CONNECTOR W JP27 DIRECT B FFC CONNECTOR X JP13 CIR B...

Page 215: ...4 I O 7 DQ1 I O 8 DQ5 I O 9 25VDD O 10 2 5VDD O 11 DQS0 I O 12 DM0 O 13 DQ2 I O 14 DQ6 I O 15 VSS 16 VSS 17 DQ3 I O 18 DQ7 I O 19 DQ8 I O 20 DQ12 I O 21 2 5VDD O 22 2 5VDD O 23 DQ9 I O 24 DQ13 I O 25 DQS1 I O 26 DM1 O 27 VSS 28 VSS 29 DQ10 I O 30 DQ14 I O 31 DQ11 I O 32 DQ15 I O 33 2 5VDD O 34 2 5VDD O 35 CK0 O 36 2 5VDD O 37 CK0 O 38 VSS 39 VSS 40 VSS 41 DQ16 I O 42 DQ20 I O 43 DQ17 I O 44 DQ21 I...

Page 216: ...O 63 VSS 64 VSS 65 DQ26 I O 66 DQ30 I O 67 DQ27 I O 68 DQ31 I O 69 2 5VDD O 70 2 5VDD O 71 CB0 72 CB4 73 CB1 74 CB5 75 VSS 76 VSS 77 DQS8 78 DM8 79 CB2 80 CB6 81 2 5VDD O 82 2 5VDD O 83 CB3 84 CB7 85 DU 86 DU RESET 87 VSS 88 VSS 89 CK2 90 VSS 91 CK2 92 2 5VDD O 93 2 5VDD O 94 2 5VDD O 95 CKE1 96 CKE0 O 97 DU A13 98 DU BA2 99 A12 100 A11 O 101 A9 O 102 A8 O 103 VSS 104 VSS 105 A7 O 106 A6 O 107 A5 ...

Page 217: ...DM4 O 135 DQ34 I O 136 DQ38 I O 137 VSS 138 VSS 139 DQ35 I O 140 DQ39 I O 141 DQ40 I O 142 DQ44 I O 143 2 5VDD O 144 2 5VDD O 145 DQ41 I O 146 DQ45 I O 147 DQS5 I O 148 DM5 O 149 VSS 150 VSS 151 DQ42 I O 152 DQ46 I O 153 DQ43 I O 154 DQ47 I O 155 2 5VDD O 156 2 5VDD O 157 2 5VDD O 158 CK1 O 159 VSS 160 CK1 O 161 VSS 162 VSS 163 DQ48 I O 164 DQ52 I O 165 DQ49 I O 166 DQ53 I O 167 2 5VDD O 168 2 5VD...

Page 218: ...4 pin 4 4 Pin No Signal name I O Pin No Signal Name I O 181 DQ57 I O 182 DQ61 I O 183 DQS7 I O 184 DM7 O 185 VSS 186 VSS 187 DQ58 I O 188 DQ62 I O 189 DQ59 I O 190 DQ63 I O 191 2 5VDD O 192 2 5VDD O 193 SDA I O 194 SA0 O 195 SCL O 196 SA1 O 197 3 3VDD_SPD O 198 SA2 O 199 VDD_ID O 200 DU ...

Page 219: ...I 4 PID0 I 5 GND 6 TZCLK O 7 TZCLK O 8 GND 9 TZOUT3 O 10 TZOUT3 O 11 TZOUT2 O 12 TZOUT2 O 13 GND 14 TZOUT1 O 15 TZOUT1 O 16 TZOUT0 O 17 TZOUT0 O 18 GND 19 TXCLK O 20 TXCLK O 21 GND 22 TXOUT3 O 23 TXOUT3 O 24 TXOUT2 O 25 TXOUT2 O 26 GND 27 TXOUT1 O 28 TXOUT1 O 29 TXOUT0 O 30 TXOUT0 O 31 GND 32 NC 33 LCDVDD O 34 LCDVDD O 35 DISPOFF O 36 B_INVT_PWM O 37 DAC_BRIG O 38 NC 39 B O 40 B O ...

Page 220: ... Table C 3 RGB I F pin assignments 15 pin Pin No Signal name I O Pin No Signal Name I O 1 CRTRED 100 O 2 CRTGREEN 100 O 3 CRTBLUE 100 O 4 NC 5 GND 6 GND VGAGND 7 GND VGAGND 8 GND VGAGND 9 VCC 10 GND 11 NC 12 DDCSDA 100 I O 13 CHSYNC 100 O 14 CVSYNC 100 O 15 DDCSCL 100 I O ...

Page 221: ...D06 I O 6 PDD09 I O 7 PDD05 I O 8 PDD10 I O 9 PDD04 I O 10 PDD11 I O 11 PDD03 I O 12 PDD12 I O 13 PDD02 I O 14 PDD13 I O 15 PDD01 I O 16 PDD14 I O 17 PDD00 I O 18 PDD15 I O 19 GND 20 NC 21 PDDREQ I 22 NC 23 PDIOW O 24 GND 25 PDIOR O 26 GND 27 PIORDY I 28 PCSEL O 29 PDDACK O 30 GND 31 RQ14 I 32 NC 33 PDA1 O 34 NC 35 PDA0 O 36 PDA2 O 37 PDCS1 O 38 PDCS3 O 39 PHDDLED I 40 GND 41 5VS O 42 5VS O 43 GND...

Page 222: ...DD12 I O 15 CDD03 I O 16 CDD13 I O 17 CDD02 I O 18 CDD14 I O 19 CDD01 I O 20 CDD15 I O 21 CDD00 I O 22 CD_DREQ I 23 PDIAG 24 CD_SDIOR O 25 CD_SIOW O 26 CD_DACK O 27 CD_SIORDY I 28 CD_SBA2 O 29 CD_IRQ I 30 CD_SCS3 O 31 CD_SBA1 O 32 EXTID0 I 33 CD_SBA0 O 34 EXTID1 I 35 CD_SCS1 O 36 NC 37 SHDD_LED I 38 HDSEL O 39 EXTCSEL1 I 40 WGATE O 41 GND 42 GND 43 GND 44 USBP7 I O 45 RDATA O 46 USBP7 I O 47 WP O ...

Page 223: ...D04 I O 14 IDE_SD12 I O 15 IDE_SD03 I O 16 IDE_SD13 I O 17 IDE_SD02 I O 18 IDE_SD14 I O 19 IDE_SD01 I O 20 IDE_SD15 I O 21 IDE_SD00 I O 22 IDE_SDREQ I 23 PDIAG 24 IDE_SDIOR O 25 IDE_SIOW O 26 IDE_SDACK O 27 IDE_SIORDY I 28 IDE_SDA2 O 29 IDE_SIRQ15 I 30 IDE_SCS3 O 31 IDE_SBA1 O 32 EXTID2 I 33 IDE_SBA0 O 34 EXTID3 I 35 IDE_SCS1 O 36 NC 37 SHDD_LED I 38 NC 39 EXTCSEL2 I 40 NC 41 GND 42 GND 43 GND 44 ...

Page 224: ...me I O Pin No Signal Name I O 1 STROB 000 O 2 PDB00 100 I O 3 PDB01 100 I O 4 PDB02 100 I O 5 PDB03 100 I O 6 PDB04 100 I O 7 PDB05 100 I O 8 PDB06 100 I O 9 PDB07 100 I O 10 ACK 000 I 11 BUSY 100 I 12 PE 100 I 13 SELCT 100 I 14 AUTFD 000 O 15 ERROR 000 I 16 PINIT 000 O 17 SLIN 000 O 18 GND 19 GND 20 GND 21 GND 22 GND 23 GND 24 GND 25 GND ...

Page 225: ... D9 I O A9 GND B9 GND A10 S1 D0 I O B10 S2 D0 I O A11 S1 D8 I O B11 S2 D8 I O A12 S1 A0 I B12 S2 A0 I A13 S1 BVD1 O B13 S2 BVD1 O A14 S1 A1 I B14 S2 A1 I A15 S1 BVD2 O B15 S2 BVD2 O A16 S1 A2 I B16 S2 A2 I A17 GND B17 GND A18 S1 REG I B18 S2 REG I A19 S1 A3 I B19 S2 A3 I A20 S1 INPACK I B20 S2 INPACK I A21 S1 A4 I B21 S2 A4 I A22 S1 WAIT O B22 S2 WAIT O A23 S1 A5 I B23 S2 A5 I A24 S1 RST I B24 S2 ...

Page 226: ...1 I B40 S2 A21 I A41 S1 RDY O B41 S2 RDY O A42 S1 A20 I B42 S2 A20 I A43 GND B43 GND A44 S1 WE I B44 S2 WE I A45 S1 A19 I B45 S2 A19 I A46 S1 A14 I B46 S2 A14 I A47 S1 A18 I B47 S2 A18 I A48 S1 A13 I B48 S2 A13 I A49 S1 A17 I B49 S2 A17 I A50 S1 A8 I B50 S2 A8 I A51 GND B51 GND A52 S1 IOWR I B52 S2 IOWR I A53 S1 A9 I B53 S2 A9 I A54 S1 IORD I B54 S2 IORD I A55 S1 A11 I B55 S2 A11 I A56 S1 VS1 O B5...

Page 227: ...e I O A63 S1 D14 I O B63 S2 D14 I O A64 S1 D7 I O B64 S2 D7 I O A65 S1 D13 I O B65 S2 D13 I O A66 S1 D6 I O B66 S2 D6 I O A67 GND B67 GND A68 S1 D12 I O B68 S2 D12 I O A69 S1 D5 I O B69 S2 D5 I O A70 S1 D11 I O B70 S2 D11 I O A71 S1 D4 I O B71 S2 D4 I O A72 S1 CD1 O B72 S2 CD1 O A73 S1 D3 I O B73 S2 D3 I O A74 GND B74 GND A75 GND B75 GND ...

Page 228: ...NC 16 NC 17 IRQA I 18 5VS O 19 3V O 20 IRQD I 21 NC 22 NC 23 GNGNDD 24 3 3V AVX O 25 PCICLK O 26 MINI SRT O 27 GND 28 3VS O 29 REQ2 I 30 GNT O 31 3V O 32 GND 33 AD31 I O 34 WLANME I 35 AD29 I O 36 NC 37 GND 38 AD30 I O 39 AD27 I O 40 3VS O 41 AD25 I O 42 AD28 I O 43 NC 44 AD26 I O 45 CBE3 I O 46 AD24 I O 47 AD23 I O 48 AD19 I O 49 GND 50 GND 51 AD21 I O 52 AD22 I O 53 AD19 I O 54 AD20 I O 55 GND 5...

Page 229: ... CBE1 I O 74 GND 75 AD14 I O 76 AD15 I O 77 GND 78 AD13 I O 79 AD12 I O 80 AD11 I O 81 AD10 I O 82 GND 83 GND 84 AD09 I O 85 AD08 I O 86 CBE0 I O 87 AD07 I O 88 3VS O 89 P3V O 90 AD06 I O 91 AD05 I O 92 AD04 I O 93 NC 94 AD02 I O 95 AD03 I O 96 AD00 I O 97 VCC O 98 NC 99 AD01 I O 100 NC 101 GND 102 GND 103 NC 104 GND 105 NC 106 NC 107 NC 108 NC 109 NC 110 NC 111 SPK I 112 NC 113 GND 114 GND 115 NC...

Page 230: ...ame I O 1 FAN2 O 2 FAN SPEED2 I 3 GND Table C 9 3 JP25 Fan I F pin assignments 4 pin Pin No Signal name I O Pin No Signal Name I O 1 GND 2 FAN SPEED I 3 NC 4 FAN1 O C 11 AC Adaptor Connector 3 pin Find Power Team Table C 10 AC Adaptor Connector pin assignments 3 pin Pin No Signal name I O Pin No Signal Name I O 1 DCIN I 2 GND 3 GND C 12 Microphone 6 pin Table C 11 Microphone I F pin assignments 6 ...

Page 231: ... Series Maintenance Manual C 17 C 13 Headphone Connector 6 pin Table C 12 Headphone Connector pin assignments 6 pin Pin No Signal name I O Pin No Signal Name I O 1 ANGND 2 INTSPKL O 3 INTSPKR O 4 NBA PLUG 5 GND I 6 NC ...

Page 232: ...C 18 Satellite P20 25 Series Maintenance Manual ...

Page 233: ...0 26 05 4 05 85 25 F0 25 06 5 06 86 2E F0 2E 07 6 07 87 36 F0 36 08 7 08 88 3D F0 3D 2 09 8 09 89 3E F0 3E 2 10 9 0A 8A 46 F0 46 2 11 0 0B 8B 45 F0 45 12 _ 0C 8C 4E F0 4E 13 0D 8D 55 F0 55 15 BkSp 0E 8E 66 F0 66 16 Tab 0F 8F 0D F0 0D 17 Q 10 90 15 F0 15 18 W 11 91 1D F0 1D 19 E 12 92 24 F0 24 20 R 13 93 2D F0 2D 21 T 14 94 2C F0 2C 22 Y 15 95 35 F0 35 23 U 16 96 3C F0 3C 2 24 I 17 97 43 F0 43 2 25...

Page 234: ...1 A1 2B F0 2B 35 G 22 A2 34 F0 34 36 H 23 A3 33 F0 33 37 J 24 A4 3B F0 3B 2 38 K 25 A5 42 F0 42 2 39 L 26 A6 4B F0 4B 2 40 27 A7 4C F0 4C 2 41 28 A8 52 F0 52 43 Enter 1C 9C 5A F0 5A 3 44 Shift L 2A AA 12 F0 12 45 No 102 key 56 D6 61 F0 61 46 Z 2C AC 1A F0 1A 47 X 2D AD 22 F0 22 48 C 2E AE 21 F0 21 49 V 2F AF 2A F0 2A 50 B 30 B0 32 F0 32 51 N 31 B1 31 F0 31 52 M 32 B2 3A F0 3A 2 53 33 B3 41 F0 41 2...

Page 235: ... 53 E0 D3 E0 71 E0 F0 71 1 79 E0 4B E0 CB E0 6B E0 F0 6B 1 80 Home E0 47 E0 C7 E0 6C E0 F0 6C 1 81 End E0 4F E0 CF E0 69 E0 F0 69 1 83 E0 48 E0 C8 E0 75 E0 F0 75 1 84 E0 50 E0 D0 E0 72 E0 F0 72 1 85 PgUp E0 49 E0 C9 E0 7D E0 F0 7D 1 86 PgDn E0 51 E0 D1 E0 7A E0 F0 7A 1 89 E0 4D E0 CD E0 74 E0 F0 74 1 110 Esc 01 81 76 F0 76 112 F1 3B BB 05 F0 05 113 F2 3C BC 06 F0 06 114 F3 3D BD 04 F0 04 115 F4 3E...

Page 236: ...6 6 6 6 6 126 Pause 7 7 7 7 7 X Fn 4 X Win E0 5B E0 DB E0 1F E0 F0 1F x App E0 5D E0 DD E0 2F E0 F0 2F Notes 1 Scan codes differ by mode 2 Scan codes differ by overlay function 3 Combination with the Fn key gives different codes 4 The Fn key does not generate a code by itself 5 This key corresponds to key No 42 in a 102 key model 6 Refer to Table D 6 No 124 key scan code 7 Refer to Table D 7 No 12...

Page 237: ...0 12 83 E0 AA E0 48 E0 C8 E0 2A E0 F0 12 E0 75 E0 F0 75 E0 12 84 E0 AA E0 50 E0 D0 E0 2A E0 F0 12 E0 72 E0 F0 72 E0 12 85 PgUp E0 AA E0 49 E0 C9 E0 2A E0 F0 12 E0 7D E0 F0 7D E0 12 86 PgDn E0 AA E0 51 E0 D1 E0 2A E0 F0 12 E0 7A E0 F0 7A E0 12 89 E0 AA E0 4D E0 CD E0 2A E0 F0 12 E0 74 E0 F0 74 E0 12 X Win E0 AA E0 5B E0 DB E0 2A E0 F0 12 E0 1F E0 F0 1F E0 12 X App E0 AA E0 5D E0 DD E0 2A E0 F0 12 E...

Page 238: ...E0 AA E0 12 E0 75 E0 F0 75 E0 F0 12 84 E0 2A E0 50 E0 D0 E0 AA E0 12 E0 72 E0 F0 72 E0 F0 12 85 PgUp E0 2A E0 49 E0 C9 E0 AA E0 12 E0 7D E0 F0 7D E0 F0 12 86 PgDn E0 2A E0 51 E0 D1 E0 AA E0 12 E0 7A E0 F0 7A E0 F0 12 89 E0 2A E0 4D E0 CD E0 AA E0 12 E0 74 E0 F0 74 E0 F0 12 X Win E0 2A E0 5B E0 DB E0 AA E0 12 E0 1F E0 F0 1F E0 F0 12 X App E0 2A E0 5D E0 DD E0 AA E0 12 E0 2F E0 F0 2F E0 F0 12 Table ...

Page 239: ...3 F0 73 25 O 6 4D CD 74 F0 74 26 P 4A CA 7B F0 7B 37 J 1 4F CF 69 F0 69 38 K 2 50 D0 72 F0 72 39 L 3 51 D1 7A F0 7A 40 4E CE 79 F0 79 52 M 0 52 D2 70 F0 70 54 53 D3 71 F0 71 55 E0 35 E0 B5 40 4A E0 F0 4A Table D 6 No 124 key scan code Code set 1 Code set 2 Key top Shift Make Break Make Break Prt Sc Common E0 2A E0 37 E0 B7 E0 AA E0 12 E0 7C E0 F0 7C E0 F0 12 Ctrl E0 37 E0 B7 E0 7C E0 F0 7C Shift E...

Page 240: ...eries Maintenance Manual Table D 7 No 126 key scan code Code set 1 Code set 2 Key top Shift Make Make Pause Common E1 1D 45 E1 9D C5 E1 14 77 E1 F0 14 F0 77 Ctrl E0 46 E0 C6 E0 7E E0 F0 7E This key generates only make codes ...

Page 241: ...Appendix E Appendix E Key Layout E 1 United States US Keyboard Figure E 1 US keyboard E 2 United Kingdom UK Keyboard Figure E 2 UK keyboard Satellite P20 Series Maintenance Manual E 1 ...

Page 242: ...E 3 Spanish SP Keyboard Figure E 3 SP keyboard E 4 Japanese JA Keyboard Figure E 3 JA keyboard E 2 Satellite P20 Series Maintenance Manual ...

Page 243: ...E 5 Korean KO Keyboard Figure E 3 KO keyboard Satellite P20 Series Maintenance Manual E 3 ...

Page 244: ...E 4 Satellite P20 Series Maintenance Manual ...

Page 245: ... 6 2 LCD ASSY TO LOGIC BACK SIDE MAC925006Z0 M2 5 6 7 LU TO LL TOP SIDE MAC925006Z0 M2 5 6 2 LL TO LU BOTTOM SIDE MACK25040Z0 M2 5 4 3 FPC SUPPORT TO LOGIC LOW MACK25040Z0 M2 5 4 5 BADY FRAME TO LL TOP SIDE MACK25040Z0 M2 5 4 7 BADY FRAME TO LL BOTTOM SIDE MACK25040Z0 M2 5 4 4 SPEAKER L R TO LL TOP SIDE MACK25040Z0 M2 5 4 2 SPEAKER L R TO LL BOTTOM SIDE MACK25040Z0 M2 5 4 5 IO DOOR TO LOGIC TOP SI...

Page 246: ...BKT TO HDD DOOR ASSY MAC925014Z0 M2 5 14 1 IO DOOR TO LOGIC TOP SIDE MAC925014Z0 M2 5 14 6 LL TO LU BOTTOM SIDE MAAA0015320 M2 3 2 COVER SUB ASSY hook BKT to LCD cover MAAA0015320 M2 3 8 LCD BRK L R TO LCD 17 0 MAAA0015320 M2 3 1 INVERTER TO COVER SUB ASSY MAAA0015320 M2 3 1 LCD CABLE TO COVER MAAA0015320 M2 3 2 LCD BEZEL TO COVER MAAA0015320 M2 3 4 CPU PLATE ASSY TO M B STANDOFF MAAA0015320 M2 3 ...

Page 247: ... DOOR BACK SIDE MACK25001Z0 M2 5 12 1 UP HINGE COVER TO LOGIC TOP SIDE MMCK20080Z0 M2 8 3 DVD MODULE MKE HOUSING PANEL MMCK20080Z0 M2 8 3 COMBO MODULE KME HOUSING PANEL MMCK20080Z0 M2 8 3 DVD MODULE TOSHIBA HOUSING MMCK20080Z0 M2 8 3 COMBO MODULE TOSHIBA HOUSING MAAA4303000 M3 3 4 2ND HDD HOUSING MAFA94001N0 D SUB NUT 4 IO DOOR TO LL BACK SIDE MAA00002800 D1 7 2 5 2 DVD MODULE MKE HOUSING PANEL MA...

Page 248: ...F 4 Satellite P20 25 Series Maintenance Manual ...

Page 249: ... table shows MTBF Mean Time Between Failures for each component Table G 1 MTBF Component Time hours LCD 50 000 Keyboard 40 000 HDD 300 000 Removable FDD 30 000 Optical DVD CD drive 60 000 AC adapter 60 000 Satellite P20 Series Maintenance Manual G 1 ...

Page 250: ...G 2 Satellite P20 Series Maintenance Manual ...

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