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1

A20 GATE TEST

Address 20 line

2

CACHE ON/OFF TEST

Cache memory on/off

3

NPU OPERAND TEST

Floating point processor function

4 RAM

(Memory related)

RAM STANDARD

Memory standard

Main board

5

DMA PAGE REG TEST

DMA page register

6

DMA REGISTER TEST

DAM register

7

DMAC Transfer TEST

DAM transfer test

8

PIC HALT INSTRUCTION

TEST

Interrupt controller

9

PIC REGISTER TEST

Interrupt controller

10

RTC CMOS RAM TEST

Real time clock CMOS

11

RTC 12/24 HOUR TEST

Real time clock test

12

SPEAKER TEST

Speaker

13

PIT CH0 TEST

Interrupt timer CH0

14

PIT CH1 TEST

Interrupt timer CH1

15

PIT CH2 TEST

Interrupt timer CH2

16

KEYBOARD REG. TEST

Keyboard

Main board

17

PS/2 MOUSE REG.

Mouse

Main board

18

SERIAL WRAP TEST

Serial loop back (jig required)

19

SERIAL ALL INTERNAL TEST Serial port

20

PARALLEL REGISTER R/W Parallel register

PCIC ALL TEST

PCIC

Main board

Card Bus REG

Card Bus port

Main board

USB REG

USB port

Main board

22

VGA ALL TEST

VGA

LCD, main board, cable

23

SVGA RAM TEST

SVGA RAM

Main board

24

VESA MODE TEST

VESA mode

LCD, main board, cable, connector

25

FD WT/RD/WP TEST

FD write/read/write protection

FD, main board, cable

26

HDD ALL TEST

Only HDD lead selected

HDD, main board, cable, connector

27

ECP REGISTER R/W

Parallel port

Main board, cable, connector

28

EPP REGISTER R/W

Parallel port

Main board, cable, connector

29

EXT. CMOS R/W TEST

Extension CMOS R/W test

Main board

COMMUNICATION

Main board

DISK

(FDD/HDD)

The table below explains the parts that may be faulty or damaged should an error message occur while performing the various test

items of the self diagnostics program.

UNIQUE

(Individual

functions)

VIDEO

(Display related)

IO

(Input-output)

CONTROL

(Control ICs on the

main board, etc.)

CPU

(CPU related)

Main board

Main board

21

AUX

(Auxiliary functions)

26

Preparation

(same as above process)

Disassembly up to

LCD Block

LCD Front Ass'y/Hinge (L, R)

LCD Unit

Inverter Board/

LCD Cable

٨

Main Unit

٨

Display Unit

1. End the Windows.
2. Turn off the Power and, then remove the AC Adaptor or Battery Pack.
3. Remove any optional DIMM Memory Cards or PCMCIA Cards.
4. Remove any other peripherals or Connected Devices.

5.2.1

Keyboard

Bottom Case

HDD

W-LAN Module/Main Board/Sub Board (SD)

IC Card Cover

Tuchpad/

Sub Board (PAD LED)/

FFC (PAD-MAIN)

Antenna

LCD Block

DVD-ROM & CD-R/RW

Drive/

Sub Board (Power SW)

LCD Block

Main replaceable parts

5.2.1

5.2.2

5.2.3

5.2.4

5.2.5

5.2.6

5.2.7

5.2.8

5.2.9

5.2.10

5.2.11

5.2.12

5.2.13  

࡮

AC Adapter

࡮

Battery Pack

࡮

DIMM Cover

࡮

Heat Release Cover

࡮

Heat Release Cusion

࡮

Keyboard Ass'y

࡮

Sub Board (Keyboard)

࡮

Side Cover

࡮

Antenna Cover

࡮

Bottom Case

࡮

LCD Block

࡮

HDD

࡮

HDD FPC Unit

࡮

HCC Case

࡮

W-LAN Module

࡮

Main Board

࡮

Sub Board (SD)

࡮

Antenna Board (L, R)

࡮

Tuchpad

࡮

Sub Board (PAD LED)

࡮

FFC (PAD-MAIN)

࡮

DVD-ROM & CD-R/RW Drive

࡮

Sub Board (Power SW)

࡮

IC Card Cover

࡮

LCD Front Ass'y

࡮

Hinge (L, R)

࡮

LCD Unit

࡮

Inverter Board

࡮

LCD Cable

27

1. End the Windows.
2. Turn off the power, and then remove the AC Adaptor.
3. Slide the latches (A), and then remove the Battery

Pack.

4. Remove the Screw (A), and then remove the DIMM

Cover. (Remove if the DIMM Memory is equipped
with)
Screw (A) : XSB2+4FL

5. Remove the 2 Hooks, and then remove the Sub

Board (Keyboard).

28

5. Remove the threee Screw (B), and then remove the

CPU Heat Releas Cover and Heat Releas Cushion.
Screw (B) : DXHM0055ZA

Hook <A>

Battery Pack

Screw (A)

DIMM Cover

Screw (B)

Heat Radiation 
Cushion

CPU Heat 
Radiation Cover

Antenna Cover

LCD Block

Screw (C)

Keyboard

Hook Lever

Hook (B)

Hook (A)

CN806

Hook

A

Side Cover

Hook

Sub Board

(Keyboard)

CN806

Preparation : perform the section 6.2.1. first.
1. Remove the Screw (C), and then remove the

Antenna Cover.

2. Remove the Hook (A), (B), and then remove the

Side Cover.

3. This side of the Keyboard at a fulcrum, and it is

reversed, and then carries on a Top Case.

4. Remove the FFC from the Connector (CN806), and

then remove the Keyboard.
(Please do not bend FFC at the time of the assembly
of the Keyboard)

4. Close the Disk Cover and LCD and turn the computer

over.

7. Remove the 2 Screws (J).

8. Open the LCD Block by 90° degkes, and then Set

up the entrie Set.

9. Remove the 2 Screws (H).

10. Remove the 2 Screws (I).

11. Remove the Bottome Case.

29

Preparation : perform the section 6.2.1., 6.2.2. first.
1. Insert a small screwdriver into the hole and slide the

lock in the direction shown by arrow D to open the
Disc Cover.

2. Remove the 6 Screws (D) and 5 Screws (E).

3. Remove the FFC (PAD-MAIN) from the Connector

(CN22).

Preparation : perform the section 6.2.1. ~ 6.2.3. first.
1. Remove the LCD Cable from the Connector (CN8).
2. Remove the Inverter Cable from the Connector

(CN11).

Screw (D)

CN22

Screw (D)

Screw (E)

Screw (E)

Disk Cover

LCD Block

Screwdriver

for watch

Hole

D

Back Side

FFC
(PAD-MAIN)

Screw (H)

Screw (I)

Screw (H)

Screw (I)

Main Board

CN11

Inverter Cable

LCD Cable

CN8

Tape

5. Remove the 4 Screws (F).

6. Remove the 4 Screws (G).

Screw (J)

Screw (F)

Screw (F)

Bottom Case

Screw (G)

Screw (G)