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Sharp ER3110 I have taken the top cover off and cannot see a battery. I have also checked the fuses that lay in the main mother board and power suppyl. along with the fuse in the plug.

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Does the device do anything? Is it completely dead? If it is, then there is a good chance the power supplies have failed. Power supplies use electrical devices called "capacitors" to filter out voltage variations which are created during the process of converting alternating current to direct current. If the capacitors have shorted out, they should have caused a fuse to blow.

Do yu have the manual for the machine?

Posted on Mar 10, 2008

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You are on the right track--follow the voltages--set has a standby power supply--right at or part of main supply---runs 7/24 so likely was damaged.

likely you will find a open somewhere between where power AC enters set and the bridge rectifier---

some general info:

I see so many here with no sound/nopicture issues:

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1. IF sound main fuse/s are good.
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1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.
5_31_2012_3_00_39_pm.jpg

bad cap on right and good one on left.


5_31_2012_3_01_28_pm.jpg

arrows point out extremely puffed up caps that are bad.

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