Question about Samsung HCL4715W 47" Rear Projection Television

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Power just clicks on and off and the red power led remains on

Just before the extended warranty the converance went out and was replaced, now about 6 months later the set will not power up. Just looking for a little direction, I can do some repairs and troubleshooting myself and our local repair shop gave up without a repair schematic but I've located one and have a copy on hand. Thanks.

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  • Rory Mcgaughey Feb 14, 2007

    Thanks, I did find that Q473 is shorted, R486 (R468) did check OK, not open. I'll research on how to check the HV block before I order any parts or maybe not, it's only $54.00 for both items...Thank you all so much and I'll keep you posted.

  • Rory Mcgaughey Feb 21, 2007

    Well, no luck, I just installed the new parts, and there's no change at all..... Thanks, Rory.



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Check for a shorted transistor Q473, and R468 may be open as well (0.47 ohm @ 2 Watt). If it is shorted, try to find a good replacement part as the Samsung Part Aa96-00037a is No Longer Available. Also there is a possibility that the High Voltage block is also bad, if so, replace with Part Aa26-00101a. Good Luck!

Posted on Feb 11, 2007


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