Chapter 4 63No-Beep Symptoms
Symptom / Error Action in Sequence
No beep, power-on indi cator turns off and LCD is
blank. Power source (battery pack and power adapter).
Power System Check.
Ensure every connector is connected tightly and
correctly.
Reconnect the DIMM.
CPU board
DC-DC/charger board
System board.
No beep, power-on indicator turns on and LCD is
blank. Power source (battery pack and power adapter).
Power System Check.
Reconnect the LCD co nnectors
Hard disk drive
LCD inverter ID
LCD FPC cable
Inverter
LCD
System board
No beep, power-on indicator turns on and LCD is
blank. But you can see POST on an exter n al CR T. Reconnect the LCD co nnectors.
LCD inverter ID
LCD FPC cable
LCD inverter
LCD
System board
No beep, power-on indicator turns on and a blinking
cursor shown on LCD during POST. Ensure every connector is connected tightly and
correctly.
System board
No beep during POST but system runs correctly. Speaker
Audio/Battery connect ion board
System board
505-1.book Page 63 Thursday, November 4, 1999 4:36 PM