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I am a vintage hifi collector. No way to fix that device without the appropriate service manual...thanks to your site I got it and every thing is easier now. I got the manual right after ordering: fast cheap accurate ... thank you
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Wonderful job clear. Qick fantastic. These people are really good. If even a problem arise they are wonderful assisting you. These scheme is so net despite this is a very old TV. Thank you for everything!!!!!!!!
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Detailed schematic diagram, manual for professionals
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Good service manual,exploded view,adjusment and test point locations,head alignment,mechanical checks and adjusments,all perfect.
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Block diagram,play rec block diagram,adjusments, it's a very good well done repair manual.
2. Protect mode
(1) Symptom
1) After lighting once it does not discharge minutely from the module. 2) The relay falls.(there is an audible �Click�.) 3) The color of the front LED turns from green to red.
(2) Follow check
Start Check
Is the Power Board normal ?
No
Is the output the normal Low/High voltage except for the Stand-by 5V?
No
Replace Power Board.
Yes No Are all the connectors normal? Yes No Is the appropriate fuse (FS2,FS3) on the Y-B/D? Yes Yes Replace the fuse. No Is the output voltage normal after removing the P1 connector of the Y-B/D? No Replace the connector.
After checking each connector does is operate correctly?
Is the Y-Board normal?
Replace the Y-Board.
Is the Z-Board normal? Yes
No
Is appropriate fuse (FS1,FS2) on the Z-B/D? Yes
No
Is the output voltage normal after removing the P1 connector of the Z-B/D?
Replace the Z-Board.
Replace the fuse.
No Is the X- Board normal?
Is the output voltage normal after removing the P100, 110, 200, 210 connector of the X-B/D?
After removing the P100, 110 and the output voltage is normal : Replace the Right X-B/D After removing the P200, 210 and the output voltage is normal : Replace the Left X-B/D
Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
- 16 -
LGE Internal Use Only
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