Undetermined Problems

The diagnostic problems does not identify which devices fail, which devices are incorrectly installed, whether a short circuit happens, or whether the system is inoperative.

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

NOTE: Verify if the power supply used at the time of failure is operating correctly. You can refer to "Power System Check".

Follow the procedures below to isolate the failing FRU. Do not isolate non-defective FRU.

  1. Power off the computer.
  2. Visually check the devices. 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 been resolved.
  3. If the problem does not recur, reconnect the removed devices one at a time until you find the failed 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

Chapter 5

Jumper and Connector Location Main Board

Top Side

4730z Problems

#

Item

Description

#

Item

Description

1

JP1

LCD PANEL CONNECTOR

2

JP2

LED BOARD CONNECTOR

3

JP3

MDC CONNECTOR

4

JP5

MEDIA BOARD CONNECTOR

5

JP6

TOUCH PAD BOARD CONNECTOR

6

JP7

INTERNAL KEYBOARD CONNECTOR

7

JP9

PCMCIA SOCKET

8

JP12

INTERNAL SPEAKER CONNECTOR

9

JP13

INTERNAL MIC CONNECTOR

10

U12

LAN CHIP

11

U14

1349 CHIP

12

U17

BIOS FLASH ROM

13

U18

SOUTH BRIDGE CHIP

14

U25

SUPER I/O

15

U27

EC/KBC CHIP

16

U30

CARD BUS CONTROLLER

17

U33

AUDIO CODEC

Acer Aspire 3100 Southbridge

#

Item

Description

#

Item

Description

1

JP14

USB CONNECTOR

2

JP15

CRT CONNECTOR

3

JP16

TV-OUT CONNECTOR

4

JP17

MINI CARD CONNECTOR

5

JP18

DDRII SODIMM SLOT

6

JP19

DDRII SODIMM SLOT

7

JP20

FAN CONNECTOR

8

JP21

USB CONNECTOR

9

JP22

RJ45 CONNECTOR

10

JP23

CPU SOCKET

11

JP24

ODD CONNECTOR

12

JP25

5-in-1 CONNECTOR

13

JP27

HDD (PATA) CONNECTOR

14

JP28

MINI PCI SLOT

15

JP30

NEW CARD SOCKET

16

JP31

BLUETOOTH CONNECTOR

17

JP32

SPDIF OUT JACK

18

JP33

LINE-IN JACK

#

Item

Description

#

Item

Description

19

JP34

MIC JACK

20

PJP1

DC JACK

21

PJP2

BATTERY PACK CONNECTOR

22

U39

NORTH BRIDGE

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