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3. No Video
Nothing output of image.
Check Input of AC.
(85~225V)
Normal
Check ST-BY LED ON
Main S/W ON.
Normal
Check LED YELLOW
Sub S/W ON.
Normal
Check OPEN with
R8538, R8539, 8540.
Normal
Check normal operation
with VS, VA PACK.
Normal
Check a connective condition
and various connector.
4. No Sound
Check a connective
condition of power cable.
Abnormal
Connect plug with the set.
Abnormal
Check AC Line Fuse.
Abnormal
Check OPEN with PFC R8301,
R8302, R8303.
Check operation of FAN.
Normal
Check CRTL Pack
Check voltage of sound
terminal.
- 12 -
Abnormal
Abnormal
Abnormal
VS On.
Check Open with F8811
Fuse.
Replace R8301, R8302, R8303.
Check output of 5V MONI,
5V CTL.
Replace CTRL PACK.
Check connection
line of speaker.
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