Question about Sharp LC-32D4U 32 in. HD-Ready LCD Television

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Power up my sharp lc30hv2u does not turn on, but the the standby light stays on, I was wondering if the power supply should be replaced?

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Re: power up

Nothing wrong with the power supply more likely you need to replace the back light. One way to diagnose the problem might be trough the light down on front of the TV count the blinking intervals and/or the color of the same and check your user manual for this part then you will have a better idea of what it is.

Posted on Aug 28, 2007

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Is the red light suppose to stay on when you turn off the tv with the remote?

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Your power supply board is not yet dead, you know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like, to buy a whole refurbish power supply board for the replacement.

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My sharp aquos 30 inch tv will not come on. what could be the problem

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Power supply is the place to look, look for bulging on top of the capacitors in the secondary side of the main power supply.

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Power supply bad on Sharp Aquos LC - bad board - schematic to ID?

Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.

Let me know how you do Kathy ?

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1 Answer

Have a 30" SHARP Aquos LC30HV2U that has a bad power supply. Nothing happens when I turn on the LCD - though it is getting power confirmed by green light going on but nothing on LCD. Visual inspection

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One possible idea is the cables going the box to the TV. ( might be bad )

If your sure about the problem, you can get your Service Manual here:

This with have all the schematic, diagrams, part number, and test points you need.

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