The T.V. turns on and displays what input your on then the screen goes blank. If anyone has a service manual or schematic for this it would be great.
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Re: Sharp LC-32HT2U Turns On Then Turns Off
Pictures of the whole top of the board?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Sharp LC-32HT2U Turns On Then Turns Off
Here is one of the top of the boardAttached FilesComment
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Re: Sharp LC-32HT2U Turns On Then Turns Off
OK, so the last picture posted is the top of the powerr supply board, and the first two pictures of the earlier post are for the Inverter board. Any top side of of the whole inverter board?
When the screen blanks out can you see the backlights still on? If the backlights are still on but no pictures, then we need to look at the T-CON board to see if it is getting the DC supply to it. No luck on the service manual yet.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-32HT2U Turns On Then Turns Off
Tips on posting pictures:
Clear pictures of bothe sides of the board, close up pictures of the connectors especially if they are labeled with voltage indicator and function will help a lot so we can find out what the pins are for.
Thanks.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-32HT2U Turns On Then Turns Off
here are some more pics. None of the connectors had voltages labled. I was able to get the sm which will help me later when i geta chance to poke around more. The Backlights appear to go out completely. There is also a relay that clicks when it does. Will get some of the inverter board.Attached FilesComment
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Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Sharp LC-32HT2U Turns On Then Turns Off
Yes, the service manul will help a lot!Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sharp LC-32HT2U Turns On Then Turns Off
How do i get it on here, the file size is 24mb big and the limit is 9 on pdf? I could put the link on here.
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Hello,
I am looking / wondering if anyone knows where a good firmware download link is for a LC-60LE640U, the sharp support sight says the screen is archived but offers no links.
I see backlite is active,
but I cannot get the screen to return back to menus , etc
This is all after replacing the mainboard...
any assistance is greatly appreciated. -
I have a PN-LE701 that turns itself back on almost exactly 65 seconds after being turned off. I have done a hard reset, factory reset and updated the firmware by USB, all to no avail. I called Sharp and they said they have experienced this quite a few times and just replaced the main board. Once, a factory reset corrected the problem but only once. Any help appreciated. -
MacBook Pro 14" M1 Pro Turns on functions then turns off when I plug in USB C cable to reset the computer. I disconnect the battery fully and then reconnect it and it won't turn back on. After letting it sit for a day I plug the battery back up, and the MagSafe 3 cable and it powers on and stays ons, once I plug in a USB C cable into the port closes to the MagSafe port it turns off and the Amber light turns off and won't turn on. No water damage, nothing, I want to do a DFU restore to wipe the computer since the customer stated they did an update and ever since it just decided to not work...
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Model : Sharp 40" 4K LED 40BJ3K with TP.MS6586.PC710 single board.
Fault: Turning on TV, the backlights come on then immediately start dimming down and turns off.
Checks:
Standby LED voltage starts at 46v
checked all LEDs, all test good.
Checked caps, diodes and most for shorts.
Nothing obvious.
(Edit)
Ok so since getting the board out to photo, and testing all components in place (as a first pass). I reinstalled the board ,reseating all connections to the PCB... And the backlight is now working...
...01-04-2022, 05:27 AM -
I am testing an old LG L192WS-BN monitor I have that gives an image, but has a backlight issue. When you turn it on the backlight turns on 1 second and it turns off, turns on again, 1 second and it turns off and stays off. Using a flashlight I can see there's still an image.
I replaced a bulged cap on the main board, but made no difference. I also got another exact same model monitor that has a broken ccfl (the connector got ripped from the panel and the main screen connector is also broken so I can't use this panel to test), tried using the main board from this one, same issue....
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