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 59):

  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

□ 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

Aspire 7730g Cn10

CN1

LCD connector

SW2

Touchpad Switch

U4

DVI Transfer IC

SW1

Touchpad Switch

U48

Clock Generator IC

PU1

System PWR IC

U28

Video RAM

PU4

U27

Video RAM

CN2

Speaker Connector

CN29

Lid-Switch

U11

CardBus PWR IC

PU11

CPU PWR IC

PU1

System PWR IC

CN8

Quick Board Connector

BT1

RTC Battery Connector

CN7

Jogdial Connector

U2

CardBus IC

CN9

Microphone Connector

U17

Track Point IC

CN6

Pen-Sensor

CN3

Track Point Connector

U26

BIOS

U59

ODD Switch IC

CN5

Bluetooth Connector

U60

ODD Switch IC

U23

Keyboard Control IC

U45

Super I/O IC

CN4

Keyboard Connector

U3

GigaLAN IC

SW5

Power-On Switch

7730g Circuit Plan

SW3 J1 CN14 CN18 LED3 LED4 CN19

LED2 U19

CN20 CN24

CN26 CN27

SW3 J1 CN14 CN18 LED3 LED4 CN19

LED2 U19

CN15

Battery Connector

LED4

HDD LED (Green)

CN16

ODD Connector

U19

FIR

JDIM1

9.2H DDR2

LED3

Power LED (Green/Amber)

JDIM2

5.2H DDR2

CN18

Mini PCI Connector

U44

Graphic Chip

CN14

PCMCIA Slot (Main Board Side)

CN21

DC-in Jack

J1

MDC Connector

CN25

CRT

SW4

Wireless Switch

CN22

USB Port

LED2

Wireless LED (Amber)

CN23

USB Port

LED1

Bluetooth LED (Blue)

U51

CPU Socket

SW3

Bluetooth Switch

U46

North Bridge

CN13

3-in-1 Card Reader Slot

CN20

FAN Connector

U40

South Bridge

CN24

USB Port

CN17

2nd-Battery Connector

CN28

1394 Connector

CN11

Modem

CN26

Audio Jack (Blue)

U34

LAN Transfermer

CN27

Audio Jack (Green)

CN10

RJ45-RJ11

U52

Audio Codec

CN12

Docking Port

CN19

HDD Connector

U39

LAN Switch IC

The Ultimate Computer Repair Guide

The Ultimate Computer Repair Guide

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