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Old 06-02-2010, 06:26 PM   #1
snipe
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Default Sharp LC37D44U Blinking LED

I have a Sharp LC37D44U and I was watching it when it shut off and the power + OPC lights flash 2x each then the OPC light flashes 3x, not sure what this means, I cannot find any info on this anywhere. Anyone know?
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Old 06-02-2010, 06:42 PM   #2
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Default Re: Sharp LC37D44U Blinking LED

I have been able to get sound after unplugging the unit and while unit is unplugged hold the volume up button and channel down buttons down and while depressing both buttons plug the unit in which should have put it in SERVICE MOD. but the picture is blank, I can see the backlight is on but no picture.
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Old 06-02-2010, 07:46 PM   #3
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Default Re: Sharp LC37D44U Blinking LED

I dont know if you have a users manual or not but here is where you can get one. http://www.sharp.ca/manuals/default2.asp
Half way down the page.

Another site with some info on troubleshooting this tv is:
http://www.ehow.com/how_5242884_trou...arp-aquos.html
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Last edited by Dgtech; 06-02-2010 at 07:52 PM..
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Old 06-02-2010, 08:19 PM   #4
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Default Re: Sharp LC37D44U Blinking LED

Well I took the back off and I found everything to be looking good exept I noticed that 2 screws are missing on the power board, they have what looks to be grounding pads but no screws, doesn't look like there ever was so I don't know would that be it? I have heard some electronics can detect missing screws. Here are the pics, all caps look good.
http://img176.imageshack.us/i/img0062pn.jpg/
http://img249.imageshack.us/i/img0061tt.jpg/
http://img215.imageshack.us/i/img0060t.jpg/

Last edited by snipe; 06-02-2010 at 08:23 PM..
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Old 06-03-2010, 04:53 PM   #5
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Default Re: Sharp LC37D44U Blinking LED

So no one has any idea as to what it is?
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Old 06-03-2010, 05:34 PM   #6
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Default Re: Sharp LC37D44U Blinking LED

Quote:
Originally Posted by snipe
So no one has any idea as to what it is?
The link above may point to the service manual; the service manual is also on Scribd.

The failure codes are listed on pages 6-14 and 6-15. This appears to indicate failures in the 3.3V and UR6V supplies. The 3.3V supply is generated on the main board from the 5V supply, I didn't notice where the UR6V supply comes from.

The power supply schematic is not included. As a first step, look at the labels on the connectors of the power supply.

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Old 06-05-2010, 01:21 AM   #7
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Default Re: Sharp LC37D44U Blinking LED

Well I have taken it in to be looked at and well it aint gonna be cheap, about $900.00 to repair, so I am working on getting Sharp to repair or replace the TV under warranty, so far it looks like they might.
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Old 06-20-2010, 02:08 AM   #8
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Default Re: Sharp LC37D44U Blinking LED

Well Sharp has offered me an LC40D68UT as a replacement @ $285.00. As much as I am not happy about it, it is cheaper then buying a new TV from a store. Oh the LCD screen on the old one has a short, that is what the repair shop has found, so I am trying to find someone that might have a dead TV that I can steal parts from, but I ain't holding my breath
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Old 11-30-2012, 11:40 AM   #9
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Default Re: Sharp LC37D44U Blinking LED

Hello, I'm not sure if this Post is dead. But i have the same problem with the same tv.
found service Guide here
http://elektrotanya.com/sharp_lc37d4.../download.html
i'll let you guys know if I can fix this set and i'll post.
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Old 12-11-2012, 06:32 AM   #10
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Default Re: Sharp LC37D44U Blinking LED

Quote:
Originally Posted by snipe View Post
I have a Sharp LC37D44U and I was watching it when it shut off and the power + OPC lights flash 2x each then the OPC light flashes 3x, not sure what this means, I cannot find any info on this anywhere. Anyone know?
Did you not have any electrician around you I think he can guide you well
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Old 12-12-2012, 02:17 AM   #11
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Default Re: Sharp LC37D44U Blinking LED

Quote:
Originally Posted by snipe View Post
Well Sharp has offered me an LC40D68UT as a replacement @ $285.00. As much as I am not happy about it, it is cheaper then buying a new TV from a store. Oh the peimar led lights screen on the old one has a short, that is what the repair shop has found, so I am trying to find someone that might have a dead TV that I can steal parts from, but I ain't holding my breath
That is very hard thing to do.
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Old 07-16-2013, 08:49 AM   #12
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Default Re: Sharp LC37D44U Blinking LED

Well I have kept that TV around all this time and I just came across an LC-32D44U that the sound quit on, so after doing some research I found that this TV uses the same Mainboard as the LC-37D44U and since the 37" has a toasted LCD panel I swapped the mainboard and boom, sound fixed on the 32", so I guess it paid off to keep it around all this time.
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