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I thank Owen-Manuals.com for the wonderful service rendered to me, and this manual which I purchased helped me a lot in servicing my Denon System, which was lying in a dead state.
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Excellent service manual. Complete service info. with schematics, step-by-step instructions and illustrations. Well worth the price!
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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