Undetermined Problems

The diagnostic problems does not identify which adapter or device failed, which installed devices are incorrect, whether a short circuit is suspected, or whether the system is inoperative.

Follow these procedures to isolate the failing FRU (do not isolate non-defective FRU).

NOTE: Verify that all attached devices are supported by the computer.

NOTE: Verify that the power supply being used at the time of the failure is operating correctly. (See "Power System Check" on page 81.):

  1. Power-off the computer.
  2. Visually check them for damage. If any problems are found, replace the FRU.
  3. Remove or disconnect all of the following devices:
  • Non-Acer devices
  • Printer, mouse, and other external devices
  • Battery pack
  • Hard disk drive

□ DIMM

  • CD-ROM/Diskette drive Module
  • PC Cards
  1. Power-on the computer.
  2. Determine if the problem has changed.
  3. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU.
  4. If the problem remains, replace the following FRU one at a time. Do not replace a non-defective FRU:
  • System board
  • LCD assembly

Jumper and Connector Locations

Chapter 5

Top View

Extensa 5635zg Power Problem Motherboard

1

JACK1

AV-in Jack

20

CN29

PATA HDD Connector

2

CN1

TV Antenna Connector

21

CN30

SATA HDD Connector

3

CN2

22

U23

North Bridge

4

CN509

Card Bus Socket

23

U33

RAID Controller

5

CN3

S-Video Connector

24

U37

Timing Controller

6

CN4

HDMI Connector

25

CN13

CPU Socket

7

U6

26

CN28

SATA HDD Connector

8

CN5

I/O Board to Main Board Connector

27

CN24

BIOS Flash Memory

9

U7

28

U515

Audio Codec

10

CN8

DVI-D Port

29

CN20

Mini PCI Socket

11

U14

Graphic Controller

30

CN23

Mini Card Connector

12

U9

DDR2 SDRAM IC

31

CN26

Media Board Connector

13

U15

DDR2 SDRAM IC

32

CN22

Wireless LAN Card Connector

14

JACK2

Microphone Jack

33

CN21

USB Connector

15

U11

Ethernet Controller

34

CN19

USB Connector

16

CN15

DIMM Socket

35

CN16

18 CN18

19 U39

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