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TROUBLESHOOTING
1. No Video

Abnormal Picture




Abnormal Check JAGASM
Input PC signal.
IC501

Normal


Check CXA2101 Check SII150
IC203 IC901

Normal


Check ADV7123 Check cable of pin 21
IC406 P901

Normal


Check FLI2220
IC404

Normal


Check FLI2200
IC403

Normal


Check VPC3230
IC201

Normal


Check Input jack & Connector.




2. No Sound
Check connector Check MSP3401 Check LA4282 Check Input
speaker to set. IC601 IC603 Jack.




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4. No Video

Nothing output of image.




Check Input of AC. Abnormal
Connect plug with the set.
(85~225V)

Normal


Check ST-BY LED ON Abnormal
Check AC Line Fuse.
Main S/W ON.

Normal


Check LED YELLOW Abnormal Check OPEN with PFC R8301, Abnormal
Replace R8301, R8302, R8303.
Sub S/W ON. R8302, R8303.

Normal

Abnormal Check output of 5V MONI,
Check OPEN with
Check operation of FAN.
R8538, R8539, 8540. 5V CTL.

Normal
Normal

Check normal operation Check CRTL Pack Abnormal
with VS, VA PACK. Replace CTRL PACK.
VS On.

Normal


Check a connective condition
and various connector.




4. No Sound
Check a connective Check voltage of sound Check Open with F8811 Check connection
condition of power cable. terminal. Fuse. line of speaker.




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