IBM Personal System/2 CL57 SX Hardware Maintenance Reference Download Page 61 | Manualshive

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7.6 System Board

   1   System Expansion Connector (150-pin)
   2   Display Control Card
   3   Serial Connector
   4   I/O Panel (Parallel and External Input Device)
   5   Indicator Card
   6   Password-Override Connector
   7   Backup Battery
   8   Communication Interface (Modem/Serial)
   9   Diskette Drive
   10   Thermal Sensor
   11   Hard Disk Drive
   12   Interconnection, Trackball and Keyboard Control Card
   13   Dew Point Sensor
   14   Voltage Converter
   15   Voltage Converter

IBM PS/2 Model CL57 SX HMR

System Board

_ Copyright IBM Corp. 1991

7.6 - 1

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Summary of Contents for Personal System/2 CL57 SX

Page 1: ...FRONT November 29 1991 Part Number 10G4419 Form Number S10G 4419 00 IBM PS 2 Model CL57 SX HMR _ Copyright IBM Corp 1991 FRONT 1...

Page 2: ...n the product s and or the program s described in this publication at any time It is possible that this publication may contain reference to or information about IBM products machines and programs pro...

Page 3: ...ard Disk Drive 2 2 Diskette Drive and Diskette 3 0 System Memory Requirements 4 0 Specifications 4 1 System 4 2 AC Adapter 5 0 Special Tools 6 0 Removals and Replacements 6 1 1010 Keyboard and Top Cov...

Page 4: ...rotectible rights may be used instead of the IBM product program or service Evaluation and verification of operation in conjunction with other products programs or services except those expressly desi...

Page 5: ...denoted by an asterisk in this publication are trademarks of the IBM Corporation in the United States and or other countries IBM Personal System 2 PS 2 Micro Channel IBM PS 2 Model CL57 SX HMR Tradema...

Page 6: ...tion Read only memory basic input output system ROM BIOS Diskette drive controller Hard disk drive fixed disk drive with system partition supported Serial connector Parallel connector System expansion...

Page 7: ...1 1 Security Subtopics 1 1 1 Power On Password and Keyboard Password IBM PS 2 Model CL57 SX HMR Security _ Copyright IBM Corp 1991 1 1 1...

Page 8: ...r on the system board see System Board in topic 7 6 4 Install a jumper over the pins as shown 5 Power on the system and leave it until the POST ends Note Make sure that you remove the jumper from the...

Page 9: ...lot System expansion connector Suspend and resume functions Subtopics 1 2 1 Microprocessor 1 2 2 CMOS RAM and CMOS RAM Extension 1 2 3 ROM BIOS POST 1 2 4 Diskette Drive Controller 1 2 5 Serial Connec...

Page 10: ...cessor is a 32 bit processor with a 16 bit external data bus and a 24 bit external address bus The microprocessor operates in two modes real address mode and virtual address protected mode The micropr...

Page 11: ...M extension is kept active by the backup battery when the system is powered off If stored data is lost due to a depleted or removed battery the data can be restored using one of the following methods...

Page 12: ...ive hard disk drive displays and other major I O devices in the system Some adapters have their own ROM modules containing extended BIOS routines that work with the system board ROM BIOS The routines...

Page 13: ...wo interface connectors on the system board using a flexible cable Both signals and voltages are supplied through this cable These signals and voltages can only operate one IBM 3 5 inch diskette drive...

Page 14: ...em configuration as either SERIAL_1 or SERIAL_2 If an optional communication slot with a serial adapter is installed the device address must be different from the primary one Note Conflicts occur when...

Page 15: ...shell connector and is designed primarily for printers However the connector can be used as a general input output port for any device or application that matches its input output capabilities The sy...

Page 16: ...L57 SX has only one input device connector However it is possible to connect the numeric keypad and the mouse at the same time through another input device connector located at the rear of the numeric...

Page 17: ...h EIA 232D standard and provides alternative input output capabilities that have the same function as the primary serial connector on the rear of the system The internal data fax modem is a dual funct...

Page 18: ...ctor that can accept a communications cartridge II to support various communication capabilities provided with a 16 bit Micro Channel adapter installed in the cartridge IBM PS 2 Model CL57 SX HMR Syst...

Page 19: ...ed by the System power off after option in the Set Advanced Features program has elapsed A battery low condition blinking an amber LED is detected The PS2 OFF command in the Set Advanced Features prog...

Page 20: ...points addressable APA graphics modes The VGA with LCD controller supports a maximum of 720 by 400 640 by 400 on LCD picture elements PELs in text mode and a maximum of 640 by 480 PELs in graphics mo...

Page 21: ...gned for IBM Personal System 2 computers that use Micro Channel architecture can be attached to the system expansion connector The communication adapters that the Model CL57 SX supports are IBM 3270 C...

Page 22: ...owered off or the system enters suspend mode No special precautions are required regarding parking the heads when moving the computer Warning Power off the system or close the display whenever moving...

Page 23: ...uration data allows you to use the system without running the automatic configuration after the system configuration has been changed by attaching or removing a communications cartridge II to or from...

Page 24: ...ystem with the customer s backup copy of the Reference Diskette 2 Select the Backup Restore system programs from the Main Menu 3 Select the Restore the system partition to load the system setup and ut...

Page 25: ...he system utility programs the advanced diagnostics programs and the system configuration data set onto the new hard disk Note If the Reference Diskette has been loaded onto the hard disk drive but th...

Page 26: ...s a 1 44MB formatted diskette drive It has 1 44 on the eject button Both 1 0MB formatted 720KB and 2 0MB formatted 1 44MB capacity diskettes can be used in this drive IBM PS 2 Model CL57 SX HMR Disket...

Page 27: ...RAM cards If a memory error occurs the Model CL57 SX relocates system memory in 1MB blocks If the POST detects a memory error in the first 640KB of system memory the entire 1MB of memory is deactivate...

Page 28: ...4 0 Specifications Subtopics 4 1 System 4 2 AC Adapter IBM PS 2 Model CL57 SX HMR Specifications _ Copyright IBM Corp 1991 4 0 1...

Page 29: ...em On 5 0 to 35 0 C 41 0 to 95 0 F System On with diskette 10 0 to 35 0 C 50 0 to 95 0 F System Off 5 0 to 43 0 C 41 0 to 109 4 F Relative Humidity System On with no diskette 8 to 80 System Off 8 to 9...

Page 30: ...amperes kVA Maximum Configuration 0 2 kVA Output Voltage Output 1 Minimum 18 V dc Maximum 22 V dc Output 2 Minimum 17 V dc Maximum 21 V dc Note AC adapters in early production do not support output 2...

Page 31: ...similar to the Triplet Model 310 1 Wrap Plug The Tri Connector wrap plug IBM part 72X8546 is used during advanced diagnostic tests of Parallel Connectors Serial Connectors 1 Manufactured by Triplett...

Page 32: ...disassemble it throw it into fire or water or short circuit it Dispose of the battery pack as required by local ordinances or regulations Warning The hard disk drive has sensitive parts Improper handl...

Page 33: ...ntion Removals of both keyboard and top cover must be performed concurrently The keyboard can be removed with the top cover on The keyboard cables however cannot be reconnected unless the top cover is...

Page 34: ...6 1 1 Keyboard Removal 1010 Keyboard Continued IBM PS 2 Model CL57 SX HMR Keyboard Removal _ Copyright IBM Corp 1991 6 1 1 1...

Page 35: ...Note To reinstall the keyboard the top cover must be removed 1010 Top Cover IBM PS 2 Model CL57 SX HMR Keyboard Removal _ Copyright IBM Corp 1991 6 1 1 2...

Page 36: ...r Removal Before removing the top cover make sure the keyboard is removed see Keyboard Removal in topic 6 1 1 1010 Top Cover Continued IBM PS 2 Model CL57 SX HMR Top Cover Removal _ Copyright IBM Corp...

Page 37: ...e reinstalling the top cover be sure to reposition the keyboard and reconnect the two flexible cables to the keyboard control card IBM PS 2 Model CL57 SX HMR Top Cover Removal _ Copyright IBM Corp 199...

Page 38: ...6 2 1020 Trackball Assembly Keyboard and Top Cover 1010 IBM PS 2 Model CL57 SX HMR 1020 Trackball Assembly _ Copyright IBM Corp 1991 6 2 1...

Page 39: ...the speaker volume and the power on switch fit into their respective slots on the top cover After replacing the indicator card check that you can correctly operate the speaker volume and the power on...

Page 40: ...isk Warning To avoid damaging to the flexible cables carefully unplug the two connectors from the system board Keyboard and Top Cover 1010 Note When you replace the hard disk drive with a new one make...

Page 41: ...6 5 1050 Diskette Drive Keyboard and Top Cover 1010 IBM PS 2 Model CL57 SX HMR 1050 Diskette Drive _ Copyright IBM Corp 1991 6 5 1...

Page 42: ...bove 100 C 212 F incinerate it or expose its cell contents to water Dispose of the battery as required by local ordinances or regulations When replacing the backup battery use only Part No 35G2282 Use...

Page 43: ...6 7 1070 Keyboard Control Card Keyboard and Top Cover 1010 IBM PS 2 Model CL57 SX HMR 1070 Keyboard Control Card _ Copyright IBM Corp 1991 6 7 1...

Page 44: ...ver 1010 Note Referring to the following figure press and hold the metal clips on each side of connector PICTURE 18 then disconnect it from the display control card IBM PS 2 Model CL57 SX HMR 1080 Dis...

Page 45: ...ly 1140 Display Control Card 1080 Note When a new system board is installed be sure to set the time and date and restore the system configuration data 1090 System Board and I O Panel Assembly Continue...

Page 46: ...inued Note After reinstalling the system board and I O panel assembly make sure the power control switch PICTURE 23 on the I O panel is set to ON IBM PS 2 Model CL57 SX HMR 1090 System Board and I O P...

Page 47: ...em Board 1090 Warning To avoid damaging the bottom cover save the removed mounting screws and use them to replace the voltage converter Holding the voltage converter with incorrect length screws can b...

Page 48: ...fore touching the math coprocessor Once you are grounded remove the math coprocessor being very careful not to bend the pins Note When reinstalling the math coprocessor align the dot PICTURE 26 on the...

Page 49: ...apter or an internal data fax modem The figure below shows the removal of the internal data fax modem 2 Before removing the communication adapter disconnect any cable from the adapter and open the dis...

Page 50: ...6 13 1130 IC DRAM Card 1130 IC DRAM Card Continued IBM PS 2 Model CL57 SX HMR 1130 IC DRAM Card _ Copyright IBM Corp 1991 6 13 1...

Page 51: ...acities of the IC DRAM card in any combination 2MB 4MB and 8MB 2 When installing the IC DRAM card insert the IC DRAM card with the IBM logo facing up and the arrow mark first into either slot 1 or 2 I...

Page 52: ...6 14 1140 LCD Assembly Keyboard and Top Cover 1010 1140 LCD Assembly Continued IBM PS 2 Model CL57 SX HMR 1140 LCD Assembly _ Copyright IBM Corp 1991 6 14 1...

Page 53: ...and Top Cover 1010 LCD Assembly 1140 Note Push in the screwdriver into the slit to release the latch and take the LCD panel apart from the LCD rear cover IBM PS 2 Model CL57 SX HMR 1150 LCD Panel _ Co...

Page 54: ...1150 LCD Panel Continued IBM PS 2 Model CL57 SX HMR 1150 LCD Panel _ Copyright IBM Corp 1991 6 15 2...

Page 55: ...tions Subtopics 7 1 Front View 7 2 Rear View 7 3 Interior View without Keyboard 7 4 Top Cover 7 5 System Status Indicators 7 6 System Board IBM PS 2 Model CL57 SX HMR Locations _ Copyright IBM Corp 19...

Page 56: ...ontrol 4 Power On Light green 5 Power Switch 6 Option Slot 7 Integrated Trackball 8 Diskette Eject Button 9 Diskette Drive 10 Keyboard 11 Bottom Cover 12 Speaker Volume 13 Top Cover 14 LCD Panel IBM P...

Page 57: ...r Jack 6 Power Control Switch 7 Machine Identification Label 8 Removable Rear Cover 9 System Expansion Connector 10 Viewing Hole 11 External Display Connector 12 Serial Connector 13 Latch 14 Parallel...

Page 58: ...anel Assembly 6 Display Control Card 7 Eject Button for IC DRAM Card 8 IC DRAM Card Slot 1 9 IC DRAM Card Slot 2 10 System Board 11 Backup Battery 12 Communication Adapter Holder 13 Diskette Drive 14...

Page 59: ...7 4 Top Cover 1 Top Cover 2 Integrated Trackball 3 Indicator Card 4 Speaker IBM PS 2 Model CL57 SX HMR Top Cover _ Copyright IBM Corp 1991 7 4 1...

Page 60: ...7 5 System Status Indicators IBM PS 2 Model CL57 SX HMR System Status Indicators _ Copyright IBM Corp 1991 7 5 1...

Page 61: ...Indicator Card 6 Password Override Connector 7 Backup Battery 8 Communication Interface Modem Serial 9 Diskette Drive 10 Thermal Sensor 11 Hard Disk Drive 12 Interconnection Trackball and Keyboard Co...

Page 62: ...7 7 Display Control Card 1 LCD Panel 2 System Board Interface 3 External Display Connector IBM PS 2 Model CL57 SX HMR Display Control Card _ Copyright IBM Corp 1991 7 7 1...

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