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MiTAC 4024 Troubleshooting Manual

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TROUBLE SHOOTING GUIDE FOR NOTEBOOK
TROUBLE SHOOTING GUIDE FOR NOTEBOOK
MiTAC
TECHNICAL SUPPORT & SERVICE CENTER
MiTAC
TECHNICAL SUPPORT & SERVICE CENTER
4024
4024
BY:
BY:
GEORGE FENG
GEORGE FENG
FEB.
FEB.
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
MiTAC
1996
1996
1

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Summary of Contents for MiTAC 4024

  • Page 1 TROUBLE SHOOTING GUIDE FOR NOTEBOOK TROUBLE SHOOTING GUIDE FOR NOTEBOOK 4024 4024 GEORGE FENG GEORGE FENG MiTAC TECHNICAL SUPPORT & SERVICE CENTER MiTAC TECHNICAL SUPPORT & SERVICE CENTER FEB. 1996 FEB. 1996 MiTAC MiTAC MiTAC MiTAC MiTAC MiTAC MiTAC MiTAC...

  • Page 2: Table Of Contents

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 1. DEFINITION OF CONNECTORS 1. DEFINITION OF CONNECTORS & SWITCHES ................. 4 & SWITCHES ................. 4 2. LOCATION OF SWITCHES & 2. LOCATION OF SWITCHES & CONNECTORS ................5 CONNECTORS ................5 3. MAJOR COMPONENTS ............. 6 3.
  • Page 3 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9. TROUBLE SHOOTING..............32~60 10. SYSTEM BLOCK DIAGRAM & SCHEMATICS ................62~84 11. SERVICE PARTS RECOMMEND..........85 12. BOM TREE..................86~89 13. EXPLODED VIEWS ..............90~100 14. SPARE PARTS LIST..............101~106 15. LCD ME KIT...................107~108...

  • Page 4: Definition Of Connectors & Switches

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 1. DEFINITION OF CONNECTORS & SWITCHES 1. DEFINITION OF CONNECTORS & SWITCHES J1 : PARALLEL PORT J14 : FLOPPY DISK DRIVE AND CD-ROM J1 : PARALLEL PORT J14 : FLOPPY DISK DRIVE AND CD-ROM...
  • Page 5 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 2 . LOCATION OF CONNECTORS & SWITCHES 2 . LOCATION OF CONNECTORS & SWITCHES J501 J501 J502 J502...

  • Page 6: Major Components

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 3. MAJOR COMPONENTS 3. MAJOR COMPONENTS 10. U510 VG-468 PCMCIA CONTROLLER 10. U510 VG-468 PCMCIA CONTROLLER 1. U3 CPU 1. U3 CPU 11. U509 AV9155 CLOCK SYNTHESIZER 11. U509 AV9155 CLOCK SYNTHESIZER 2. U511 ACC2066 CORE LOGIC 2.

  • Page 7: Location Of Major Components

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 4. LOCATION OF MAJOR COMPONENTS 4. LOCATION OF MAJOR COMPONENTS U504 U504 VIDEO RAM VIDEO RAM F65545 F65545 VGA CONTROLLER U510 U510 VIDEO RAM VIDEO RAM U509 U509 28F010 28F010 AV9155 AV9155 SYSTEM BIOS...

  • Page 8: Pin Descriptions Of Major Components

    INTR INTERRUPT TO THE CPU CACHE PINS NON-MASKABLE INTERRUPT TO THE CPU. /KTGWE THIS IS A MULTIFUNCTION PIN. IN THE MODEL 4024 IF /KEN 486 CACHE ENABLE. BIT0 OF REGISTER 26 IS SET TO 1, THIS PIN FORCES A /LRDY NPU SIGNAL PINS ZERO OUTPUT TO CPU/SMI PIN.
  • Page 9 BUFFER FOR BUS QUIET OPERATION IN THE 4024. SA BUS PINS SYSTEM ADDRESS BIT 0. SYSTEM ADDRESS BIT 1. SA17 THIS IS A MULTIFUNCTION PIN. IN THE 4024 THIS PIN /SMIACT IS AN INPUT FROM CPU /SMIACT. /SA18 THIS IS A MULTIFUNCTION PIN. THIS PIN OUTPUTS A /STPGRNT ZERO IN GRANT BUS CYCLE IN 4024 MODEL.
  • Page 10 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 5. PIN DESCRIPTIONS OF MAJOR COMPONENTS 5. PIN DESCRIPTIONS OF MAJOR COMPONENTS 5.2 C & T F65540 LCD/VGA CONTROLLER 5.2 C & T F65540 LCD/VGA CONTROLLER SYMBOL PIN TYPE DESCRIPTION SYMBOL PIN TYPE DESCRIPTION /RESET RESET.
  • Page 11 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 5. PIN DESCRIPTIONS OF MAJOR COMPONENTS 5. PIN DESCRIPTIONS OF MAJOR COMPONENTS 5.3 NS87332 SUPER I/O CONTROLLER 5.3 NS87332 SUPER I/O CONTROLLER SYMBOL PIN TYPE DESCRIPTION SYMBOL PIN TYPE DESCRIPTION A0 - A10 ADDRESS BUS.

  • Page 12: Jumper & Switches Setting

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 6. SWITCH & JUMPER SETTING 6. SWITCH & JUMPER SETTING CPU VOLTAGE JP1 PIN 8 OF SW6 3.45V 3.9V 5.0V OPEN CPU CLOCK SPEED (MHZ) 20MHZ ON ON OFF 25MHZ ON OFF ON 33MHZ...

  • Page 13: Assembly & Disassembly

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE . ASSEMBLY & DISASSEMBLY . ASSEMBLY & DISASSEMBLY SYSTEM VIEW SYSTEM VIEW KEYBOARD KEYBOARD HARD DISK DRIVE HARD DISK DRIVE FLOPPY DISK DRIVE FLOPPY DISK DRIVE BATTERY PACK BATTERY PACK TRACKBALL MODULE TRACKBALL MODULE...

  • Page 14: System View

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 7.1 SYSTEM VIEW 7.1 SYSTEM VIEW Figure7-1-1 Figure7-1-2...
  • Page 15 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 7.2 KEYBOARD 7.2 KEYBOARD ( Figure 7-2-1 Arrow A ) ( Figure 7-2-1 Arrow B ) ( Figure 7-2-2 #1 ) ( Figure 7-2-2 #1 ) ( Figure 7-2-1 #2 ) Figure 7-2-1. Keyboard Disassembly/reassembly...

  • Page 16: Hard Disk Drive

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE Figure 7-2-2 7.3 HARD DISK DRIVE 7.3 HARD DISK DRIVE (Figure 7-3-1 Arrow A) (Figure 7-3-1 Arrow B) (Figure 7-3-1 #1) (Figure 7-3-1 #2) (Figure 7-3-1 #2) (Figure 7-3-1 #1)

  • Page 17: Floppy Disk Drive

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE Figure7-3-1 7.4 FLOPPY DISK DRIVE 7.4 FLOPPY DISK DRIVE (Figure 7-4-1 Arrow A) (Figure 7-4-1 Arrow B)

  • Page 18: Battery Pack

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE Figure 7-4-1 7.5 BATTERY PACK 7.5 BATTERY PACK (See step 2 in Section 7-3 Disassembly). (Figure 7-5-1 Arrow) (See step 3 in Section 7-3 Reassembly).
  • Page 19 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE Figure 7-5-1 7.6 TRACKBALL MODULE 7.6 TRACKBALL MODULE (See step 2 in Section 7-3 Disassembly). (Figure 7-6-1 #1). (Figure 7-6-1 #2) (Figure 7-6-1 #2). (Figure 7-6-1 #1). (See step 3 in Section 7-3 Disassembly).

  • Page 20: System Board

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE Figure 7-6-1 7.7 SYSTEM BOARD 7.7 SYSTEM BOARD (See Section 7-4 Disassembly). (See Section 7-2 Disassembly). (See step 2 in Section 7-3 Disassembly) (See Section 7-3 Disassembly) (See Section 7-5 Disassembly)
  • Page 21 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE (Figure 7-7-1 #2) (Figure 7-7-1 #1) (Figure 7-7-1 #3) (Figure 7-7-1 #4) (Figure 7-7-1 #5) (Figure 7-7-1 #6). (Figure 7-7-1 #7). (Figure 7-7-1 #7). (Figure 7-7-1 #5). (Figure 7-7-1 #6) (Figure 7-7-1 #4). (Figure 7-7-1 #3).
  • Page 22 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE (See Section 7-3 Reassembly). (See Step 3 in Section 7-3 Reassembly). (See Section 7-2 Reassembly). (See Section 7-4 Reassembly). Figure 7-7-1...
  • Page 23 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 7.8 LCD 7.8 LCD Disassembly 1. Remove the hinge covers by inserting a flat screwdriver to force them out (Figure 7-8-1 Arrow A). 2. Open the LCD/cover. 3. Remove the four screws (Figure 7-8-1 #1) under the hinge covers.
  • Page 24 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE Figure 7-8-1...

  • Page 25: Dimm Memory Module

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 7.9 SECONDARY BATTERY PACK/CD-ROM DRIVE 7.9 SECONDARY BATTERY PACK/CD-ROM DRIVE Either the secondary battery pack or the CD-ROM drive occuoies the same compartment as the floppy disk drive. To install your option, you have to remove whichever occupies there (See Figure 7-4-1 and its description).
  • Page 26 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE NOTCHED END PUSH DOWN FROM HERE Figure 7-10-2 DIMM installation 7.11 CPU 7.11 CPU (See step 2 and 3 in Section 7-2 Disassembly). Figure 7-11-1...

  • Page 27: Maintenance Diagnostics

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 8. MAINTENANCE DIAGNOSTICS 8. MAINTENANCE DIAGNOSTICS 8.1 INTRODUCTION 8.1 INTRODUCTION EACH TIME THE COMPUTER IS TURNED ON, THE SYSTEM BIOS RUNS A SERIES OF EACH TIME THE COMPUTER IS TURNED ON, THE SYSTEM BIOS RUNS A SERIES OF INTERNAL CHECKS ON THE HARDWARE.
  • Page 28 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 8. MAINTENANCE DIAGNOSTICS 8. MAINTENANCE DIAGNOSTICS 8.2 POWER-ON SELF TEST ERROR MESSAGES 8.2 POWER-ON SELF TEST ERROR MESSAGES IF AN ERROR IS DETECTED DURING POST, THE ERROR MESSAGES WILL IF AN ERROR IS DETECTED DURING POST, THE ERROR MESSAGES WILL SHOWN ON SCREEN IF THE SCREEN IS AVAILABLE.
  • Page 29 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 8. MAINTENANCE DIAGNOSTICS 8. MAINTENANCE DIAGNOSTICS 8.2 POWER-ON SELF TEST ERROR MESSAGES 8.2 POWER-ON SELF TEST ERROR MESSAGES MESSAGE POSSIBLE CAUSE RECOMMENDED ACTION MESSAGE POSSIBLE CAUSE RECOMMENDED ACTION KEYBOARD STUCK KEY KEYBOARD STUCK KEY 1.
  • Page 30 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 8. MAINTENANCE DIAGNOSTICS 8. MAINTENANCE DIAGNOSTICS 8.3 PIO PORT (378H) DIAGNOSTIC TOOLS 8.3 PIO PORT (378H) DIAGNOSTIC TOOLS A. PARTS USED: A. PARTS USED: RESISTER ARRAY, 10PIN, 150 OHM RESISTER ARRAY, 10PIN, 150 OHM...
  • Page 31 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 8. MAINTENANCE DIAGNOSTICS 8. MAINTENANCE DIAGNOSTICS 8.4 ERROR CODES 8.4 ERROR CODES FOLLOWING IS A LIST OF ERROR CODES IN SEQUENCE DISPLAY ON THE PIO DEBUG FOLLOWING IS A LIST OF ERROR CODES IN SEQUENCE DISPLAY ON THE PIO DEBUG BOARD.

  • Page 32: Trouble Shooting

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9. TROUBLE SHOOTING 9. TROUBLE SHOOTING 9.10 HARD DRIVE OR CD-ROM TEST 9.10 HARD DRIVE OR CD-ROM TEST 9.1 NO POWER 9.1 NO POWER ERROR ERROR 9.2 NO DISPLAY 9.2 NO DISPLAY 9.11 CMOS TEST ERROR 9.11 CMOS TEST ERROR...
  • Page 33 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.1 NO POWER 9.1 NO POWER SYMPTOM: SYMPTOM: WHEN THE POWER BUTTON IS PRESSED, NOTHING HAPPENS, POWER INDICATOR IS NOT WHEN THE POWER BUTTON IS PRESSED, NOTHING HAPPENS, POWER INDICATOR IS NOT LIGHT UP.
  • Page 34 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.1 NO POWER 9.1 NO POWER SYMPTOM: SYMPTOM: WHEN THE POWER BUTTON IS PRESSED, NOTHING HAPPENS, POWER INDICATOR IS NOT WHEN THE POWER BUTTON IS PRESSED, NOTHING HAPPENS, POWER INDICATOR IS NOT LIGHT UP.
  • Page 35 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.2 NO DISPLAY (SYSTEM FAILURE) 9.2 NO DISPLAY (SYSTEM FAILURE) SYMPTOM: SYMPTOM: THERE IS NO DISPLAY ON BOTH LCD AND MONITOR AFTER POWER ON ALTHOUGH THE LCD THERE IS NO DISPLAY ON BOTH LCD AND MONITOR AFTER POWER ON ALTHOUGH THE LCD AND MONITOR ARE KNOWN-GOOD.
  • Page 36 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.2 NO DISPLAY (SYSTEM FAILURE) 9.2 NO DISPLAY (SYSTEM FAILURE) *******CLOCK AND RESET CIRCUIT CHECKING******* *******CLOCK AND RESET CIRCUIT CHECKING******* Q501 PWRGOOD 3 D/PWR ON PWR ON 74HC74 74HC74 RESETDRV CLOCK U511 U511 U523...

  • Page 37: Vga Controller Failure

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.3 VGA CONTROLLER FAILURE 9.3 VGA CONTROLLER FAILURE SYMPTOM: SYMPTOM: THERE IS NO DISPLAY ON BOTH LCD AND MONITOR ALTHOUGH POWER-ON-SELF-TEST IS THERE IS NO DISPLAY ON BOTH LCD AND MONITOR ALTHOUGH POWER-ON-SELF-TEST IS PASSED.
  • Page 38 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.3 VGA CONTROLLER FAILURE 9.3 VGA CONTROLLER FAILURE SYMPTOM: SYMPTOM: THERE IS NO DISPLAY ON BOTH LCD AND MONITOR ALTHOUGH POWER-ON-SELF-TEST IS THERE IS NO DISPLAY ON BOTH LCD AND MONITOR ALTHOUGH POWER-ON-SELF-TEST IS PASSED.
  • Page 39 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.4 LCD NO DISPLAY OR PICTURE ABNORMAL 9.4 LCD NO DISPLAY OR PICTURE ABNORMAL SYMPTOM: SYMPTOM: THE LCD SHOWS NOTHING OR ABNORMAL PICTURE, BUT IT IS OK FOR EXTERNAL MONITOR. THE LCD SHOWS NOTHING OR ABNORMAL PICTURE, BUT IT IS OK FOR EXTERNAL MONITOR.

  • Page 40: Lcd No Display Or Picture Abnormal

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.4 LCD NO DISPLAY OR PICTURE ABNORMAL 9.4 LCD NO DISPLAY OR PICTURE ABNORMAL SYMPTOM: SYMPTOM: THE LCD SHOWS NOTHING OR ABNORMAL PICTURE, BUT IT IS OK FOR EXTERNAL MONITOR. THE LCD SHOWS NOTHING OR ABNORMAL PICTURE, BUT IT IS OK FOR EXTERNAL MONITOR.

  • Page 41: External Monitor No Display Or Color Abnormal

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.5 EXTERNAL MONITOR NO DISPLAY OR COLOR ABNORMAL 9.5 EXTERNAL MONITOR NO DISPLAY OR COLOR ABNORMAL SYMPTOM: SYMPTOM: THE CRT MONITOR SHOWS NOTHING OR ABNORMAL COLOR, BUT IT IS OK FOR LCD. THE CRT MONITOR SHOWS NOTHING OR ABNORMAL COLOR, BUT IT IS OK FOR LCD.
  • Page 42 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.5 EXTERNAL MONITOR NO DISPLAY OR COLOR ABNORMAL 9.5 EXTERNAL MONITOR NO DISPLAY OR COLOR ABNORMAL SYMPTOM: SYMPTOM: THE CRT MONITOR SHOWS NOTHING OR ABNORMAL COLOR, BUT IT IS OK FOR LCD. THE CRT MONITOR SHOWS NOTHING OR ABNORMAL COLOR, BUT IT IS OK FOR LCD.

  • Page 43: Memory Test Error

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.6 MEMORY TEST ERROR 9.6 MEMORY TEST ERROR SYMPTOM: SYMPTOM: PIO DEBUG BOARD SHOWS THE PORT 378H ERROR CODE IS STOPPED AT 15H, 14H ,13H OR PIO DEBUG BOARD SHOWS THE PORT 378H ERROR CODE IS STOPPED AT 15H, 14H ,13H OR ERROR MESSAGE OF MEMORY FAILURE IS SHOWN.
  • Page 44 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.6 MEMORY TEST ERROR 9.6 MEMORY TEST ERROR SYMPTOM: SYMPTOM: PIO DEBUG BOARD SHOWS THE PORT 378H ERROR CODE IS STOPPED AT 15H, 14H ,13H OR PIO DEBUG BOARD SHOWS THE PORT 378H ERROR CODE IS STOPPED AT 15H, 14H ,13H OR ERROR MESSAGE OF MEMORY FAILURE IS SHOWN.
  • Page 45 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.7 KEYBOARD TEST ERROR (INCLUDING EXTERNAL KEYBOARD & PS/2 9.7 KEYBOARD TEST ERROR (INCLUDING EXTERNAL KEYBOARD & PS/2 MOUSE) MOUSE) SYMPTOM: SYMPTOM: ERROR MESSAGE OF KEYBOARD FAILURE IS SHOWN OR ANY KEY DOESN T WORK.
  • Page 46 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.7 KEYBOARD TEST ERROR (INCLUDING EXTERNAL KEYBOARD & PS/2 9.7 KEYBOARD TEST ERROR (INCLUDING EXTERNAL KEYBOARD & PS/2 MOUSE) MOUSE) SYMPTOM: SYMPTOM: ERROR MESSAGE OF KEYBOARD FAILURE IS SHOWN OR ANY KEY DOESN T WORK.
  • Page 47 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.8 TRACK-BALL OR TOUCH-PAD TEST ERROR 9.8 TRACK-BALL OR TOUCH-PAD TEST ERROR SYMPTOM: SYMPTOM: AN ERROR MESSAGE IS SHOWN WHEN THE TRACK POINTER IS ENABLED. AN ERROR MESSAGE IS SHOWN WHEN THE TRACK POINTER IS ENABLED.
  • Page 48 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.8 TRACK-BALL OR TOUCH-PAD TEST ERROR 9.8 TRACK-BALL OR TOUCH-PAD TEST ERROR SYMPTOM: SYMPTOM: AN ERROR MESSAGE IS SHOWN WHEN THE TRACK POINTER IS ENABLED. AN ERROR MESSAGE IS SHOWN WHEN THE TRACK POINTER IS ENABLED.

  • Page 49: Diskette Drive Test Error

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.9 DISKETTE DRIVE TEST ERROR 9.9 DISKETTE DRIVE TEST ERROR SYMPTOM: SYMPTOM: AN ERROR MESSAGE IS SHOWN WHILE LOADING DATA FROM DISK TO SYSTEM. AN ERROR MESSAGE IS SHOWN WHILE LOADING DATA FROM DISK TO SYSTEM.
  • Page 50 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.9 DISKETTE DRIVE TEST ERROR 9.9 DISKETTE DRIVE TEST ERROR SYMPTOM: SYMPTOM: AN ERROR MESSAGE IS SHOWN WHILE LOADING DATA FROM DISK TO SYSTEM. AN ERROR MESSAGE IS SHOWN WHILE LOADING DATA FROM DISK TO SYSTEM.
  • Page 51 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.10 HARD DRIVE OR CD-ROM TEST ERROR 9.10 HARD DRIVE OR CD-ROM TEST ERROR SYMPTOM: SYMPTOM: EITHER AN ERROR MESSAGE IS SHOWN, OR THE DRIVE MOTOR SPINS NON-STOP, WHILE EITHER AN ERROR MESSAGE IS SHOWN, OR THE DRIVE MOTOR SPINS NON-STOP, WHILE READING DATA FROM OR WRITING DATA TO HARD-DISK.
  • Page 52 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.10 HARD DRIVE OR CD-ROM TEST ERROR 9.10 HARD DRIVE OR CD-ROM TEST ERROR SYMPTOM: SYMPTOM: EITHER AN ERROR MESSAGE IS SHOWN, OR THE DRIVE MOTOR SPINS NON-STOP, WHILE EITHER AN ERROR MESSAGE IS SHOWN, OR THE DRIVE MOTOR SPINS NON-STOP, WHILE READING DATA FROM OR WRITING DATA TO HARD-DISK.
  • Page 53 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.11 CMOS TEST ERROR 9.11 CMOS TEST ERROR SYMPTOM: SYMPTOM: 1. ERROR CODE IS STOPEED AT 10H. 1. ERROR CODE IS STOPEED AT 10H. 2. CMOS DATA LOST, OR INACCURATE SYSTEM TIME & DATE.

  • Page 54: Troubleshooting

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.8 CMOS TEST ERROR 9.8 CMOS TEST ERROR SYMPTOM: SYMPTOM: 1. ERROR CODE IS STOPEED AT 10H. 1. ERROR CODE IS STOPEED AT 10H. 2. CMOS DATA LOST, OR INACCURATE SYSTEM TIME & DATE.

  • Page 55: Sio Port Test Error

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.12 SIO PORT TEST ERROR 9.12 SIO PORT TEST ERROR SYMPTON: SYMPTON: AN ERROR DISPLAY OCCURS WHEN A MOUSE OR OTHER I/O DEVICE IS INSTALLED. AN ERROR DISPLAY OCCURS WHEN A MOUSE OR OTHER I/O DEVICE IS INSTALLED.
  • Page 56 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.12 SIO PORT TEST ERROR 9.12 SIO PORT TEST ERROR SYMPTON: SYMPTON: AN ERROR DISPLAY OCCURS WHEN A MOUSE OR OTHER I/O DEVICE IS INSTALLED. AN ERROR DISPLAY OCCURS WHEN A MOUSE OR OTHER I/O DEVICE IS INSTALLED.

  • Page 57: Pio Port Test Error

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.13 PIO PORT TEST ERROR 9.13 PIO PORT TEST ERROR SYMPTON: SYMPTON: WHEN A PRINT COMMAND IS ISSUED, PRINTER PRINTS NOTHING OR GARBAGE. WHEN A PRINT COMMAND IS ISSUED, PRINTER PRINTS NOTHING OR GARBAGE.
  • Page 58 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.13 PIO PORT TEST ERROR 9.13 PIO PORT TEST ERROR SYMPTON: SYMPTON: WHEN A PRINT COMMAND IS ISSUED, PRINTER PRINTS NOTHING OR GARBAGE. WHEN A PRINT COMMAND IS ISSUED, PRINTER PRINTS NOTHING OR GARBAGE.
  • Page 59 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.14 BATTERY RE-CHARGE FAILURE 9.14 BATTERY RE-CHARGE FAILURE AC/SOURCE AC/SOURCE BATTERY BATTERY PACK B PACK B ADAPTOR ADAPTOR BATTERY BATTERY PACK A PACK A...
  • Page 60 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9.14 BATTERY RE-CHARGE FAILURE 9.14 BATTERY RE-CHARGE FAILURE BATTERY RE-CHARGE FAIL BATTERY RE-CHARGE FAIL IS THE IS THE NOTEBOOK NOTEBOOK CONNECT N/B CONNECT N/B CHECK CHECK CONNECTED TO AC CONNECTED TO AC WITH AC...

  • Page 61: System Block Diagram & Schematics

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS SA BUS SD BUS XD BUS EPROM DISPLAY C&T 65540 AUDIO ACC 2016 KEYBOARD PERIPHERAL ACC2066 PC-CARD VG 468 DRAM NS 87332...
  • Page 62 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS...
  • Page 63 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 64 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 65 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 66 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 67 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 9. SYSTEM BLOCK DIAGRAM & SCHEMATISS 9. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 68 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 69 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 70 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 71 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 72 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 73 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 74 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 75 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 76 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 77 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 78 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 79 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
  • Page 80 4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS 10. SYSTEM BLOCK DIAGRAM & SCHEMATISS MOTHER-BOATD DC /DC BOARD...
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  • Page 85: Service Parts Recommend

    441663800053 LCD SHARP STN 1.20% U7,U508 286100471001 IC;MAX471,CURRENT SENSE 0.90% 441663800054 LCD SHARP TFT 0.30% Q2,Q3,Q5,Q8 328201603001 TR;RFD16N03L,N-FET 1.01% 411663800016 4024 TRANS BD 9.4” TFT 0.80% 286200213001 IC;MAX213,RS-232 U502 1.30% 411663800018 4024 TRANS BD 10.4” TFT 0.80% 286300786001 IC;MAX786CAI,PWM CTLR U503 0.30% 441663800020 4024 TRANS DSTN 1.80%...

  • Page 86: Bom Tree

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 12. BOM TREE (1) 12. BOM TREE (1)
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  • Page 90: Exploded Views

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 14. EXPLODED VIEWS 14. EXPLODED VIEWS...
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  • Page 101: Spare Parts List

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 13. SPARE PARTS LIST 13. SPARE PARTS LIST...
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  • Page 107: Lcd Me Kit

    4024 N/B MAINTENANCE 4024 N/B MAINTENANCE 15. LCD ME KIT 15. LCD ME KIT...
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