Acer Aspire 5650 Service Guide

Chapter 485
D2h Unknown interrupt
CodeBeeps
E0h Initialize the chipset
E1h Initialize the bridge
E2h Initialize the CPU
E3h Initialize the system timer
E4h Initialize system I/O
E5h Check force recovery boot
E6h Checksum BIOS ROM
E7h Go to BIOS
E8h Set Huge Segment
E9h Initialize Multi Processor
EAh Initialize OEM special code
EBh Initialize PIC and DMA
ECh Initialize Memory type
EDh Initialize Memory size
EEh Shadow Boot Block
EFh System memory test
F0h Initialize interrupt vectors
F1h Initialize Run...

86Chapter 4
Index of Symptom-to-FRU Error Message
LCD-Related Symptoms
Symptom / ErrorAction in Sequence
LCD backlight doesnt work
LCD is too dark
LCD brightness cannot be adjusted
LCD contrast cannot be adjustedEnter BIOS Utility to execute “Load Setup Default Settings”, then 
reboot system.
Reconnect the LCD connectors.
Keyboard (if contrast and brightness function key doesnt work).
LCD inverter ID
LCD cable
LCD inverter
LCD
System board
Unreadable LCD screen 
Missing pels in characters
Abnormal screen...

Chapter 487
Battery can’t be charged See “Check the Battery Pack” on page 77. 
Battery pack
System board
PCMCIA-Related Symptoms
Symptom / ErrorAction in Sequence
System cannot detect the PC Card (PCMCIA)  PCMCIA slot assembly
System board
PCMCIA slot pin is damaged. PCMCIA slot assembly
Memory-Related Symptoms
Symptom / ErrorAction in Sequence
Memory count (size) appears different from 
actual size.Enter BIOS Setup Utility to execute “Load Default Settings, then 
reboot system.
DIMM
System board...

88Chapter 4
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see “Undetermined 
Problems” on page 90.
Battery fuel gauge in Windows doesn’t go higher 
than 90%. Remove battery pack and let it cool for 2 hours.
Refresh battery (continue use battery until power off, then charge 
battery).
Battery pack
System board
System hangs intermittently. Reconnect hard disk/CD-ROM drives. 
Hard disk connection board
System board
Peripheral-Related Symptoms
Symptom / ErrorAction in...

Chapter 489
Intermittent Problems
Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a 
hardware defect, such as: cosmic radiation, electrostatic discharge, or software errors. FRU replacement 
should be considered only when a recurring problem exists.
When analyzing an intermittent problem, do the following:
1.Run the advanced diagnostic test for the system board in loop mode at least 10 times.
2.If no error is detected, do not replace any FRU.
3.If any...

90Chapter 4
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...

Chapter 591
Board Layout
Top View
1 JP1 LCD Connector 10 SW7 Touchpad Down Button
2 SW1 Lid Switch 11 SW2 Touchpad Up Button
3 JP3 MDC Connector 12 SW5 Touchpad Left Button
4 JP2 Power Button Connector 13 SW3 Touchapd Left Button
5 JP6 Media Board Connector 14 JP13 Internal Microphone Connector
6 JP7 Touchpad Board Connector 15 JP12 Internal Speaker Connector
7 JP43 SIM Card Connector 16 JP9 PCMCIA Socket
8 SW4 Touchpad Right Button 17 IR1 FIR Module
9 SW6 Touchpad Left Button 18 JP8 Internal Keyboard...

92Chapter 5
Bottom View
NOTE: This is engineering sample. The image above may not be exactly the same as the real main board you 
get.
1 JP19 FAN Connector 17 JP40 Headphone/SPDIF Jack
2 U42 VGA Chipset 18 JP41 Line-In Jack
3 JP18 CPU Socket 19 JP42 Microphone-in Jack
4 JP16 DVI Connector 20 IR2 CIR Module
5 JP15 CRT Connector 21 SW8 Wireless LAN Switch
6 JP14 TV-Out Connector 22 SW9 Bluetooth and 3G Switch
7 PCN1 DC-IN Jack 23 U48 South Bridge Chipset
8 JP17 Mini Card Connector 24 JP30 Mini Card...

Chapter 593
Jumper Board Layout
Switch Board Top View
Media Board Top View
LabelDescription
SW1 Arcade/TV tunver switch
SW2 Volume Up switch
SW3 Volume Down switch
SW4 Play/Pause switch
SW5 Stop switch
SW6 Forward/Next switch
SW7 Backward/Previous switch
LabelDescription
SW1 Power Button
SW2 E-mail Button
SW3 Internet Button
SW4 User Button
SW5 E-Power Button 

94Chapter 5
Media Board Bottom View
LS-2923P Power Board Top View
LabelDescription
JP3 USB Connector
JP2 USB Connector
JP6 RF INe Connector
JP5 RF Cable Connector
JP4 AV IN Connector
JP7 Board to Main Board 
Connector
LabelDescription
JP1 SIM Card Connector