Hitachi Alpha L42A404, Руководство по обслуживанию

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L42A404
8
Troubleshooting
1). No Picture, No Sound
First, confirm the status of Stand-by / On lamp (LED), then survey by following the flowchart as shown below.
Status of Stand-by / On lamp (LED) Estimated cause, method of survey
Not lighting
Confirm the connection of AC cord is complete, and AC
switch is turned on, then forward to (1).
Lighting in red Power save mode of Video or PC input. It is not defect.
Lighting in red
Turn power on by remote controller.
If it does not turn power on, forward to (2).
Lighting in blue Forward to (2).
(1) Stand-by / On lamp (LED)
is not lighting
The voltage of
pin No.11,No.12 of
CN701 on
Main Board is 5V?
Power Board
No
Yes
Main Board