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TROUBLE SHOOTING TABLE (Continued)
PICTURE NO LED LIGHT
Does the snow noise appear Check F4701. F3700. Yes on the picture tube at max No Snow noise increase.
B
control? Does 5V appear at pin (6) and (7) No Check IC751. of TU51 (TUNER).
contrast and brightness
Normal Blown out
Yes
Replace the Fuse. No Does 33V appear at pin (9) of TU51. Check IC751, Q728 etc.
Yes No
Is the Fuse again blown out? Check TU51.
Yes
Check the power circuit consisting of T702, IC701, Q701 etc.
Does 5V appear at pin (39) of IC2001.
No Yes
17
17-1 17-2
Check the Check Q2003, peripheral circuit Q2059 and of IC701, IC702, IC2001. IC703, IC751 and D725.
29D-FG3RU
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