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LVDS Interface (CN19)

PIN No.

Signal Description

PIN No.

Signal Description

21 LVDS_B3-

22 LVDS_A1-

3 LVDS_B0-

23 GND

4 LVDS_A3-

24 GND

5 GND

25 LV

6 GND

7 LV

27 LVDS_CLKB-

DS_B1+

8 LV

28 LVDS_A0-

9 LVDS_B1-

29 GND

30 GND

LVDS_CLKA-

11 GND

31 +5V_LCDVDD

12 GND

32 +3.3V_LCDVDD

33 +5V_LCDVDD

34 +3.3V_LCDVDD

15 LVDS_B2-

35 +5V_LCDVDD

16 LVDS_A2-

36 +3.3V_LCDVDD

17 GND

37 +5V_LCDVDD

18 GND

38 +3.3V_LCDVDD

39 +5V_LCDVDD

40 +3.3V_LCDVDD

Содержание K875

Страница 1: ...K875 Hardware Service Guide 2006 November V1 1...

Страница 2: ...Removing the HDD 19 Removing the Motherboard Tray 21 Removing the CPU 22 Removing the EMI Cover 24 Removing the Inverter Board 27 Removing the Touch Board 27 Removing the Speakers 28 Removing the Doc...

Страница 3: ...VDS Interface CN19 41 Inverter Connector CN20 42 POS Card Reader Connector CN21 42 System FAN Connector CN22 43 IrDA Connector CN23 43 COM 1 COM 2 COM 3 COM 4 RJ45_2 43 Appendix A IRQ Assignments 44 3...

Страница 4: ...gy providing reliable and durable touch interface 15 display motion sensor WLAN IrDA rich I O ports and optional MSR and scanner offer a flexible and multi functional platform Rugged retail hardened d...

Страница 5: ...ror Message Corrective Action BIOS ROM checksum error System halted The checksum of the BIOS code in the BIOS chip is incorrect indicating the BIOS code may have become corrupt Replace the BIOS CMOS b...

Страница 6: ...display type EISA Configuration Checksum Error The EISA nonvolatile RAM checksum is incorrect or cannot correctly read the EISA slot This can indicate either the EISA nonvolatile memory has become cor...

Страница 7: ...oller is installed correctly If no hard drives are installed be sure the Hard Drive selection in Setup is set to NONE Hard Disk s diagnosis fail The system may run specific disk diagnostic routines Th...

Страница 8: ...for your system to find and replace the bad memory chips Memory Size has Changed Since Last Boot Memory has been added or removed since the last boot In EISA mode use configuration utility to reconfi...

Страница 9: ...is message is used in conjunction with the I O CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem cannot be isolated Override enabled defaults loaded If the syste...

Страница 10: ...sk shutdown See the Press Tab message earlier for a description of this feature Secondary master hard disk fail POST detects an error in the primary slave IDE hard drive Secondary slave hard disk fail...

Страница 11: ...Chapter 3 Troubleshooting 11...

Страница 12: ...Power Circuit Troubleshooting 12...

Страница 13: ...LCD Panel Troubleshooting 13...

Страница 14: ...Peripheral Troubleshooting 14...

Страница 15: ...Other Function Troubleshooting 15...

Страница 16: ...Touch Screen Troubleshooting 16...

Страница 17: ...ontinued protection against risk of fire replace only with the same type and ratings of fuse Lithium Battery Warning Caution Danger of explosion if battery is incorrectly replaced Replace only with th...

Страница 18: ...h insulation having an outer surface that is green with or without yellow stripes is the equipment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect...

Страница 19: ...wer Line In Line Out COM 4 USB 2 USB 2 LPT LAN DC Jack Terminal Disassembly Procedure K875 for service purposes minal This section explains how to disassemble the Warning Disconnect the AC power cord...

Страница 20: ...2 Remove the HDD door Remove the HDD by pulling on the tag 3 Disconnect the HDD cable 1 4 HDD cable 1 20...

Страница 21: ...he Motherboard Tray e cable cover 1 Loosen the thumbscrews 2 to remove th Thumbscrew 1 Thumbscrew 1 Loosen the thumbscrews 2 2 Thumbscrew 1 Thumbscrew 1 Remove the Motherboard tray by pulling on the h...

Страница 22: ...4 Remove the Motherboard tray 1 Removing the CPU 1 Disconnect the fan cable Fan Cable 1 22...

Страница 23: ...2 Remove the screws 4 Lift the heatsink and fan up 3 Turn the knob 180 degrees to open the key lock to remove the CPU by a slot screwdriver 4 Key Lock Screws 2 Screws 2 23...

Страница 24: ...Removing the EMI Cover 1 Remove the HDD 2 Remove the motherboard tray 3 Remove the screws 3 4 Slide the MSR cover out and disconnect the cable 1 Screws 3 Cable 1 5 Remove the screw 1 Screw 1 24...

Страница 25: ...6 Remove the screw 1 7 Open the button cover and remove the screw 1 8 Separate the rear bezel and front bezel Screw 1 Screw 1 25...

Страница 26: ...9 Remove the screws 6 10 Remove the screws 4 11 Lift the EMI cover up Screws 2 Screw 1 Screws 3 Screws 2 Screws 2 26...

Страница 27: ...DD 2 Remove the motherboard tray 3 Remove the EMI cover 4 Disconnect the cables 3 5 Remove the screws 2 Cable 1 Cable 1 Cable 1 Screw 1 Screw 1 oard 1 Remove the HDD 2 Remove the motherboard tray 3 Re...

Страница 28: ...4 Disconnect the cables 2 5 Remove the screws 2 Touch Cable 1 Cable 1 Screw 1 Screw 1 1 Remove the HDD 2 Remove the motherboard tray 3 Remove the EMI cover Removing the Speakers 28...

Страница 29: ...4 Disconnect the speaker cable 1 Cable 1 5 Remove the screws 4 Screws 2 Screws 2 Removing the Docking Board 1 Remove the HDD 2 Remove the motherboard tray 3 EMI cover Remove the 29...

Страница 30: ...4 Disconnect the cables 7 5 Remove the screws 3 to replace the docking board Screws 2 Screw 1 Removing the LED Sensor Board 1 Remove the HDD 2 Remove the motherboard tray 3 Remove the EMI cover 30...

Страница 31: ...he cables 2 5 Lift the LED sensor board up IrDA Cable 1 LED Interface 1 Removing the MSR Board 1 Remove the HDD 2 Remove the motherboard tray 3 Remove the EMI cover 4 Disconnect the cable 1 see the pi...

Страница 32: ...ng the LCD Panel and Touchscreen Remove the EMI cover Remove the MSR board Remove the LED sensor board Disconnect the cables 2 1 Remove the HDD 2 Remove the motherboard tray 3 4 5 6 Screws 2 Cable 1 T...

Страница 33: ...7 Remove the screws 2 Screw 1 Screw 1 8 Remove the screws 2 that secure the LCD bracket to the display front bezel Screw 1 Screw 1 33...

Страница 34: ...9 Remove the screws 12 and remove the brackets 4 10 Remove the screws 2 Screws 3 Screws 3 Screws 3 Screws 3 Screw 1 Screw 1 34...

Страница 35: ...s 2 to remove the LCD panel Screw 1 Screw 1 Circuit Boards Main Board JP2 CN2 PWR1 RJ45 1 RJ11_1 CN1 RJ45 2 USB2 USB1 SW1 PCI1 PRN1 CPU1 CN19 CN20 CN15 CN21 CN13 CN18 JP11 JP7 IDE1 DIMM1 JP4 JP9 JP10...

Страница 36: ...S Reset 2 3 et the jumper from CMOS Reset 2 3 to CMOS Normal 1 2 CMOS Operation Mode The diagram bel indicates the def C 3 Finally res Function JP8 CMOS Normal N C CMOS Reset 1 2 Power Mode Setting Fu...

Страница 37: ...HORT SHORT OPEN 2 18 Single SHORT OPEN SHORT 1024 x 768 SHORT 3 4 24 Dual SHORT SHORT OPEN OPEN 1280 x 102 4 1024 x 768 24 Single SHORT OPEN SHORT SHORT 5 800 24 Single SHORT OPEN SHORT OPEN x 600 COM...

Страница 38: ...same or equivalent type as recommended by the manufacturer iscard used batteries according to the manufacturer s instructions Note the battery s polarity before removing it so that you can replace the...

Страница 39: ...s found on the mainboard Speaker MIC Connector CN4 Introduction T PIN No Signal Description 1 AMP_ORL 2 GND 3 GND 4 AMP_ORR 5 GND 6 MIC1 CD IN Connector CN9 PIN No Signal Description 1 CDIN_L 2 CDIN_R...

Страница 40: ...No Signal Description 1 DCD 2 RX 3 TX 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI 10 5V CPU FAN Connector CN15 PIN No Signal Description 1 5V 2 Feedback 3 GND U PIN No Signal Description 1 5V_USB1 2 USB20_R_P...

Страница 41: ...D 25 LVDS_CLKB 6 GND 26 LVDS_A0 7 LV 27 LVDS_CLKB DS_B1 8 LVDS_CLKA 28 LVDS_A0 9 LVDS_B1 29 GND 10 30 GND LVDS_CLKA 11 GND 31 5V_LCDVDD 12 GND 32 3 3V_LCDVDD 13 LVDS_B2 33 5V_LCDVDD 14 LVDS_A2 34 3 3V...

Страница 42: ...V 5 B ight Enable ack L 6 N C 7 N C 8 B e ack Light Enabl 9 GND 10 GND 11 GND 12 GND PIN No Signal Description 1 5V 2 5V 3 K TO_MSR DATA_SIO_ 4 KDATA_SIO_TO_MSR 5 KDATA_MSR_TO_GFINGER 6 KCLK_MSR_TO_GH...

Страница 43: ...32_3_TX 7 RS232_1_CTS 27 RS232_3_CTS 8 RS232_1_DTR 28 RS232_3_DTR 9 GND 29 GND 10 30 RS232_3_RI RS232_1_RI 11 N C 31 N C 12 RS232_2_DCD 32 RS232_4_DCD 13 RS232_2_DSR 33 RS232_4_DSR 14 RS232_2_RX 34 RS...

Страница 44: ...5 13 PCI devices 6 14 PCI devices 7 15 Parallel port LPT1 8 3 System CMOS Real Time Clock 9 4 ACPI Controller PCI devices 10 5 Communic COM3 ation Port COM4 COM5 COM6 11 6 PCI devices 12 PS 2 mouse C...

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