Service Page for Laptop Repairing

8/8/2019 Service Page for Laptop Repairing

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General Guide of Notebook Maintenance

1

Trouble Shooting

1. No Power

3. No Display

2. Battery Can not Be Charged

4. LCD No Display or Picture Abnormal

5. External Monitor No Display or Color Abnormal

6. TV Test Error

7. Memory Test Error

8. Keyboard (K/B) Touch-Pad (T/P) Test Error

9. Hard Drive Test Error

10. CD-ROM Driver Test Error

11. USB Port Test Error

12. PC Card Socket Test Error

13. Mini-PCI Socket Test Error

14. Audio Failure

15. LAN Test Error


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2

*1: No power definition

Base on ACPI Spec. We define the no power as while we press the power button, the system cant leave S5 statusor none the PG signal send out from power supply.

*2: No display definition

Base on the digital IC three basic working conditions: working power, reset, Clock. We define the no display as

while system leave S5 status but cant get into S0 status.

Judge condition:

Check whether there are any voltage feedback control to turn off the power.

Check whether no CPU power will cause system cant leave S5 status.

If there are not any diagram match these condition, we should stop analyzing the schematic in power supply sending

out the PG signal. If yes, we should add the effected analysis into no power chapter.

Judge condition:

Check which power will cause no display.

Check which reset signal will cause no display.

Check which Clock signal will cause no display

Base on these three conditions to analyze the schematic and edit the no display chapter.

S5: Soft Off

S0: Working

Keyword:

For detail please refer the ACPI specification


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3

L532,L33

L521

L25

L1

PU10,PQ13,PD5

L7

PL503,PQ503,PL506

PR507,JO3,JO4,PJO2

PU502 L509PU6,PD4,PR20

PD504

PQ502

PR501

PR502

BATTERY

PF501,PD501

PL501,PL502 PD503

PU5

Power In PWR_VDDIN +5VA

ADINP

PU8

PD507

PU501

PL507

PR511

PD3

D/VMAIN

PF1

PL1

PL2

PQ6

PQ7

PF503,PU14,PU15,

PD6~PD9,PQ508,PQ507,PQ509,

PQ510,PL508,PL509 +CPU_CORE

+3VSB

+3VS

+3.3VDACVDD

(Charge)

PJ501

PQ504,PQ505,PL506,PD1PR510,JO5,JO6,PJO1

When power button is pressed ,nothing happens ,power indicator does not light up.

Example for Main Voltage Map

+3VA_KBC

(Discharge)

+3VA

(Discharge)

PF502,PL504

PU4,PD2

L507

L508

U517

PU12

+NB_AVDD1

+NB_AVDD2

+3VS_LCD

+VCCA

+2.5VDDA

+1.2VLDTA

Q1

+LCDVCC

PU1

+3V

L513

+3VS_USB

+3V_MII

+3V_LAN

+5VSBL530,R712

L30,L520

PU3

+5VSL21,L512

+5VS_CDROM

+5VS_HD

AVDD

+AMP_5V

PU2

+5V

U7

U506

U4

U504

USB0VCC5

USB1VCC5

USB2VCC5

USB3VCC5

PF504,PJO505,PU16,PU17,PU18

PD508,PD11,PL510,PR91,PR96

PD12,JO503,JO504,JO505

+2.5VSB

PD502


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4

Yes

No Power

1 No Power

Board-level

Troubleshooting

Replace

Motherboard

Connect

AC adaptor

or battery

Replace the faultyAC adaptor or

Battery.

PowerOK?

Try another known good battery

or AC adapter.

Is the

Notebook connected

to power (Either AC adaptor

or battery)?

Check the following signals if they are correct using an oscilloscope

to check one at a time and test.

Signal

Signal

Battery

AC Adaptor

WhereFrom Power Source

Problem(First use

AC to power it)

No

Yes

No

BATT

BATT_TBATT_V

D/VMAIN

ADINP

ADINP_1ADINP_2

ADEN#

D/VMAIN

PWR_VDDIN

LEARNING

+5VA

+3VA

When power button is pressed ,nothing happens ,power indicator does not light up.

Check the following signals if they are correct using an

oscilloscope to check one at a time and test.


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5

2 Battery Can not Be Charged

When the battery is installed but the battery status indicate LED display abnormal.

ConnectAC adaptor.

No

Yes

No

Yes

Is the

notebook connectedto power (AC adaptor)?

1. Make sure that the battery is good.

2. Make sure that the battery is installed properly.

Correct it.Battery charge

OK?

Check the following signals one at a time and

Test.

Signal

ADINP

ADINP_[1,2]

LI_OVP

I_LIMITCHG_I

BATT

BATT_V

BATT_T

BATT_C

BATT_D

BATT_DEAD

Board-level

Troubleshooting

Replace

Motherboard

Battery can not Charge


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6

Replace monitor

orLCD.

Board-level

TroubleshootingYes

NoMonitor

orLCD module

OK?

Make sure that CPU module,

DIMM memory are installed

Properly.

Display

OK?

Yes

No

Correct it.

To be continued

Clock and reset checking

Check system clock and reset

circuit.

Replace

Motherboard

1. Try another known good CPU

module, DIMM module And BIOS.2. Remove all of I/O device (HDD,

CD-ROM.) from motherboard

except LCD or monitor.

Display

OK?

1. Replace faulty part.

2. Connect the I/O device to the

M/B one at a time to find out

which part is causing the problem.

Yes

No

If378 Port

Have error code

No

According error

Cord to repair

Yes

3 No Display

There is no display on both LCD and VGA monitor after power on although the LCD and monitor is known-good.

No Display


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7

Replace faulty

LCD

1. Confirm LCD is good and check the cable

are connected properly.

2. Try another known good LCD

Display

OK?

Remove all the I/O device & cable from

motherboard except extended LCD.

Display

OK?

Connect the I/O device & cable

to the M/B one at a time to find

out which part is causing the

problem.

Yes

No

Yes

No

Board-level

Troubleshooting

Replace

Motherboard

One of the following signals one at a time and test.

Signals:

+3VS

D/VMAIN

+LCDVCC

IXOUT2

LCD_ID[0:2]TXOUT[0:2]+

TXOUT[0:2]-

TXOUTCLK1+

TXOUTCLK1-

ENPBLT

ENAVDD

BLADJ

There is no display or picture abnormal on LCD or monitor.

4 LCD No Display or Picture Abnormal

VGA Controller Failure


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8

Replace faulty

monitor.

1. Confirm monitor is good and check the cable


2. Try another known good monitor

Display

OK?

Remove all the I/O device & cable from

motherboard except extended monitor.

Display

OK?

Connect the I/O device & cable

to the M/B one at a time to find

out which part is causing the

problem.

Yes

No

Yes

No

Board-level

Troubleshooting

Replace

Motherboard

to check the following signals one at a time and test.

Signals:

+5VSCRT_RED

CRT_GREEN

CRT_BLUE

CRT_DDDA

CRT_HSYNC

CRT_VSYNC

CRT_DDCK

5 External Monitor No Display or Color Abnormal

There is no display or picture abnormal on monitor.

VGA Controller Failure


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9

Replace faulty cable

TV Controller Failure

Confirm TV is good and check the cable


Display

OK?

Yes

No

Board-level

Troubleshooting

use an oscilloscope to check the following signals

Signals:

+3VS

PCI_RESET#TVD[0:11]

TVCLK

TVCLKR

SPCLK1

SPD1

TVHS

TVVS

TV_14M

6 TV Test Error

There is no display or picture abnormal on TV.

Replace Motherboard.


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10

7 Memory Test Error

Extend DDRAM is failure or system hangs up.

Memory Test Error

Use an oscilloscope to check the signals one at a time.

Test

OK?

Replace the faulty DDR

SDRAM module.

Yes

No

Signals:

If your system host bus clock running at

266/333/400 MHZ then make sure that DDR

SO-DIMM module meet require of PC

2100/2700/3200.

Test

OK?

Yes

No

+2.5V

+DDR_VREF

CKEA

CKEBSMBDATA

SMBCLK

DDR_BAA [0,1]

DDR_BAB [0,1]

MEMADD_A[0:13]

MEMADD_B[0:13]

DDR_CLK [0,1,4,5,6,7]

DDR_CLK [0,1,4,5,6,7]#

Board-levelTroubleshooting

ReplaceMotherboard

Replace the faulty DDR

SDRAM module.

DDR_WEA#

DDR_WEB#

CPU_CS[0:3]#

DDR_RASA#DDR_RASB#

DDR_CASA#

DDR_CASB#

1. If your system installed with expansion

DDR SO-DIMM module then check

them for proper installation.

2. Make sure that your DDR SO-DIMM

sockets are OK.3. Then try another known good DDR

SO-DIMM modules.


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use an oscilloscope to check the signals one at a time and test

after each replacement.

Signals

+3VA

+3VA_KBC

LPC_LAD[0:3]

SERIRQPCI_KBC_CLK

KO[0:15]

KI[0:7]

T_CLK

T_DATA

XIN

XOUT

8 Keyboard (K/B) Touch-Pad (T/P) Test Error

Error message of keyboard or touch-pad failure is shown or any key does not work.

Keyboard or Touch-Pad

Test Error

Try another known good Keyboard

or Touch-pad.(Internal or external)

Test

Ok?

Replace the faulty

Keyboard or

Touch-Pad

Yes

No

No

YesCorrect it.

Is K/B orT/P cable connected to

notebook

properly?

Board-level

Troubleshooting

Replace

Motherboard


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12

Yes

No

Re-boot

OK?Replace the faulty parts.

1. Check if BIOS setup is OK?

2. Try another working drive.

Check the system drive for proper

installation.

No

Re - Test

OK?End

Yes

Replace

Motherboard

use an oscilloscope to check the signals one at a time

Signals:

Board-level

Troubleshooting

9 Hard Drive Test Error

+5VS

+5VS_HD

PCI_RESET#

IDE_RST#IDE_D_PDD[0:15]

IDE_D_PDDREQ

IDE_D_PDIOW#

IDE_D_PDIOR#

IDE_D_IORDY

IDE_D_PDDACK#

IDE_D_IRQ14

IDE_D_PDA[0:2]

IDE_D_PDCS1#

IDE_D_PDIAG

IDE_D_PDCS3#

Either an error message is shown, or the driver motor continues spinning, while reading data is from orwriting data is to hard drive.

Hard Driver

Test Error


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13

CD-ROM Driver

Test Error

Yes

No

Test

OK?Replace the faulty parts.

1. Try another known good compact disk.

2. Check install for correctly.

Check the CD-ROM driver for proper

installation.

No

Re - Test

OK?End

Yes

Replace

Motherboard

Board-level

Troubleshooting

use an oscilloscope to check the signals one at a time

Signals:

10 CD-ROM Drive Test Error

An error message is shown when reading data from CD-ROM drive.

+5VS

+5VS_CDROM

PCI_RESET#

IDE_RST#

IDE_D_SDD[0:15]

IDE_D_SDDREQIDE_D_SDIOW#

IDE_D_SDIOR#

IDE_D_IORDY

IDE_D_SDDACK#

IDE_D_IRQ15

IDE_D_SDA[0:2]

IDE_D_SDCS1#

IDE_D_SDIAG

IDE_D_SDCS3#


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14

Re-test

OK?

No

Yes

No

YesCorrect it

Replace another known good USB device.

Replace

Motherboard

Correct it

Test

OK?

Board-level

Troubleshooting

use an oscilloscope to check the following signal one at a time

Signals:

+5V

+2.5V

+2.5V_USB

+3V

+3V_USB

+VCC_USB_0

+VCC_USB_1

+VCC_USB_2

+VCC_USB_3

USBP[0:3]+

USBP[0:3]-

USB0VCC5

USB1VCC5

USB2VCC5

USB3VCC5

USBCLK_SB

USB_OC[0:3]#

11 USB Port Test Error

An error occurs when a USB I/O device is installed.

USB Test Error

Check if the USB device is installed

properly.


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15

An error occurs when a PC card device is installed.

12 PC-Card Socket Test Error

1. Check if the PC CARD device is ins talledproperly.

2. Confirm PC card driver is installed ok.

Test

OK?

Re-test

OK?

Yes

No

Yes

No

Change the faulty

part then end.

Try another known good

PC card device.

Correct it Replace

Motherboard

Board-level

Troubleshooting

use an oscilloscope to check the following signal one at a time.

+3VS

VCCA

VPPAPCI_AD[0:31]

PCI_RESET#

PCI_C/BE#[0:3]

PCI_FRAME#

PCI_IRDY#

PCI_TRDY#

PCI_DEVSEL#

PCI_STOP#

PCI_INTB#

PCI_GNT0#

PCI_SERR#PCI_PERR#

PCICLK_CARD

PCI_PAR

PCI_REQ0#

CLKRUN#

PCI_LOCK#

SERIRQ

PC-Card Socket

Test Error

Signals


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16

1. Check if the Mini-PCI CARD device

is installed properly.

2. Confirm Mini-PCI driver is installed ok.

Test

OK?

Re-test

OK?

Yes

No

Yes

No

Change the faulty

part then end.

Try another known good

Mini-PCI card device.

Correct itReplace

Motherboard

Board-level

Troubleshooting

An error occurs when a PC card device is installed.


+5VS

+3VSPCI_AD[0:31]

LPC_LAD[0:3]

PCI_C/BE#[0:3]

MINIPCI_PD

PCI_INTC#

PCI_MINI_CLK

PCI_REQ2#

PCI_IRDY#

CLKRUN#

13 Mini-PCI Socket Test Error

PCI_SERR#

PCI_PERR#PCI_INTD#

PCI_INTC#

PCI_RESET#

PCI_GNT2#

PCI_PAR

PCI_FRAME#

PCI_TRDY#

PCI_STOP#

PCI_DEVSEL#

Mini-PCI Socket

Test Error

Signals


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17

1. Try another known good speaker,CD-ROM.

2. Exchange another known good Audio/touch

pad/card Read board.

Test

OK?

Re-test

OK?

Replace

Motherboard

YesCorrect it.

Correct it.Yes

No

No

No sound from speaker after audio driver is installed.

14 Audio Failure

Board-level

Troubleshooting

Audio Drive Failure

1. Check if speaker cables are connected properly.

2. Make sure all the drivers are installed properly.

Signals

MIC_INT

MIC_EXT

+5VS

+AMP_5V

AOUT_R

AOUT_LROUT+

ROUT-

LOUT+

LOUT-

LINE_OUT_L

LINE_OUT_R

SPK_OFF

AVDD



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18

Yes

No

Test

OK? Correct it.

Replace

Motherboard

1. Check if the driver is installed properly.

2. Check if the notebook connect with theLAN properly.

Board-level

Troubleshooting

use an oscilloscope to check the following signal one at a time and

Test.

Signals

LAN_CRS

LAN_TXP

LAN_TXN

LAN_RXP

LAN_RXN

+3V

+3V_LAN

LAN_MTXD[0:3]

LAN_MRXD[0:

3]

LAN_MRXDV

LAN_MRXER

LAN_MRXC

LAN_MTXE

LAN_MTXC

LAN_DCLK

LAN_DADAIO

LAN_COL

An error occurs when a LAN device is installed.

15 LAN Test Error

LAN Test Error

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