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 63):

  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:
  • Main board
  • LCD assembly

Jumper and Connector Locations

Chapter 5

Top View

Jumper Sw1 Acer Extensa 5320

JP1

CRT Connector

JP16

Module Connector

JP2

Parallel Port

JP17

Mini PCI Connector

JP3

IEEE 1394 Connector

JP18

Speaker Connector

JP4

TV-OUT Connector

JP19

Headphone-out Jack

JP5

RJ11/RJ45 Connector

JP20

SD Socket

JP6

USB Connector X2

JP21

Microphone-in Jack

JP7

CPU FAN Connector

JP22

HDD Connector

JP8

USB Connector

JP23

LED Cable Connector

JP9

POWER Board Connector

PCN1

AC-IN Jack

JP10

MBC Connector

PJP9

Battery Connector

JP11

VGA Board Connector

SW3

Wireless Kill Switch

JP12

CPU Socket 479pin

U9

BIOS ROM

JP13

VGA Board Connector

SW1

Lid Switch

JP15

PCMCIA Socket

U17

North Bridge

SW1 Settings (Lid switch)

Setting

Function 1

NONE

Function 2

LCD BACKLIGHT OFF

Function 3

STAND BY

Function 4

HIBERNATE

SW3 Settings(Kill Switch)

Setting

On

Wireless On Bluetooth On

Off

Wireless Off Bluetooth Off

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