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-   -   sharp lc32le551u no display (https://www.badcaps.net/forum/showthread.php?t=65707)

ajshoe 11-09-2017 08:31 AM

sharp lc32le551u no display
 
3 Attachment(s)
found a SHARP LC-32LE551U with no main board. Found one on EBAY, set now turns on, backlights come on with blue led status light. no display, tried unplugging one side of T-con cable then other - no change. 12V is present and fuses are good.

T-con board bad ??? does anybody have schematic ??? thanks

Attachment 165907

Attachment 165908

Attachment 165909

Andrew F. Ali 11-09-2017 09:32 AM

Re: sharp lc32le551u no display
 
I recently encountered SHARP LED TVs with the same model Nos. that carry different Panel Nos., Main Bds and T-CON Bds. So though you got a Main Bd to work in one way, you could have a non-working TV due to different Firmwares. The Main Bds have a unique No. associated with it for the Firmware it is loaded with.

budwich 11-09-2017 10:33 AM

Re: sharp lc32le551u no display
 
in my limited experience with a few sharps, if you unplug one of the tcon to panel cables, then the side associated with that unplugged side goes white. Are you saying nothing happens at all? sounds like a problem beyond the main board, but maybe, some of the "status lines" are not correct... maybe.

Further, which "fuses are good" are you referring to. At the tcon, at the power board?

budm 11-09-2017 10:42 AM

Re: sharp lc32le551u no display
 
https://www.badcaps.net/forum/attach...8&d=1510237835

There are many Voltage test points on that T-CON, I.E. VCC_1.8V
So look for the test points.

ajshoe 11-10-2017 08:48 AM

Re: sharp lc32le551u no display
 
backlight is on - no display. removing either side of T-con cable gibes same pic (blue screen)
Fuse F1 is good - 12.35V on both sides of fuse.
Vcc_1.8V + 0V
INV_V = 0.5V
INV_V1 = 0V
INV_V2 = 0V

seems like T-con is doing nothing. as far as main board is concerned - didn't have one when I got set. This main board came out of this same model # (according to EBAYer)

ajshoe 11-14-2017 12:58 AM

Re: sharp lc32le551u no display
 
so new T-con same symptom. must be main bd version #. how do I find right one ?? can this one from ebay be programmed ??

ajshoe 12-09-2018 08:52 PM

Re: sharp lc32le551u no display
 
3 Attachment(s)
got another main board - same issue. tv powers up, backlights are on. no display on screen. disconnecting cables to t-con and main makes no change.

Andrew F. Ali mentioned firmware doesn't match main board ?? where do I find firmware to mate to main board ??

ajshoe 12-09-2018 08:57 PM

Re: sharp lc32le551u no display
 
1 Attachment(s)
back of set

nomoresonys 12-10-2018 12:56 AM

Re: sharp lc32le551u no display
 
Don't see any firmware for this model on their site, theres a contact number or live chat. http://www.sharpusa.com/Support.aspx

nomoresonys 12-10-2018 01:11 AM

Re: sharp lc32le551u no display
 
Tcon there for $9.49 if you want to try one, you can contact them to compare numbers to see if its a match. https://www.ebay.com/itm/Sharp-LC-32...Vtm:rk:13:pf:0

ajshoe 12-10-2018 08:34 AM

Re: sharp lc32le551u no display
 
bought a t-con last week - no difference. Have contacted sharp but no response yet. going to look at screen more closely today. very frustrating tv yet fairly simple design. is there a way to force a test pattern on SHARPS ?

nomoresonys 12-10-2018 09:28 AM

Re: sharp lc32le551u no display
 
Did you try the live chat? they may try to ignore you, hard to tell but sometimes you get a bad board or a mismatch, could be bad from get go or be doa. Do both tcons act exactly the same and have thee same voltage test readings?

ajshoe 12-10-2018 03:54 PM

Re: sharp lc32le551u no display
 
both t-con boards had same result. GAVE UP. Have 2 tcons boards, 2 main boards, PSB, and LVDS if anybody needs them. they are good boards. I salvaged the led strips !! Also have stand, original remote. WOOHOO

jmmo 09-27-2020 01:20 PM

Re: sharp lc32le551u no display
 
Good afternoon, I was checking your chat in the forum, I need the dump of that sharp card, because I can't find it on the web.

sharp 32le551u board 0171-2271-5411 part list sharp 3632-2682-0150


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