Power and OPC light flashes twice together and then OPC light flashes three more times. Then it repeats. I get no picture or sound. It was working just fine 2hrs ago. Wife turned it off the vacuum. When she tried turning it back on nothing happened.
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Re: SHARP LC-52SB55U Flashing power/OPC lights
Try unpluging the tv and wait a few minutes then plug it back in,
Power led flashing 2 times, opc flashing 3 times = DET_5V failure
From manual...
DET_5V (microprocessor pin 33) failure (L). 5V is not applied.
If error is detected during operation, error standby is activated
by pollingAttached FilesLast edited by R_J; 04-16-2014, 04:57 PM. -
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Re: SHARP LC-52SB55U Flashing power/OPC lights
I see and read your comment. Thank you. But I don't understand how to fix it. Is it repairable?Comment
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Re: SHARP LC-52SB55U Flashing power/OPC lights
Yes,repairable.Usually, IC 1604 and IC 1804 (hdmi) has a short.Check for short.Comment
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Re: SHARP LC-52SB55U Flashing power/OPC lights
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I have the above TV. Black screen. Power blinks 2 times. OPC blinks once. Plug in with channeldown/volup. Powers up with solid green power but no light. I removed, cleaned and tightened the screwed on the inverters. I tested plug coming from the power supply to the inverter board when unplugged. INV12V shows 7.4 V DC. INV60V shows 0.1 or something like that. After plugging in the cable I don't get meaningful voltage from either one. (I measured after booting the TV with channeldown/volup.)
Is this a bad power supply? Or am I measuring something wrong.
-Mike -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hello everyone, so the problem is the tv would seem to power up when i hit the power button as i would hear a relay click, sometimes it may give me a good picture for about 5 secs or so, sometimes i get a black screen, then shortly after it will click back off and i get power and opc lights flashing together twice followed by one flash of the opc light then it repeats.
Please correct me if i'm wrong but i understand the flash sequence indicates a possible power supply problem, can anyone say if this is accurate information? So going on that i went ahead and tried a factory reset, checked... -
As the Elitebooks (820, 840 all gens) only show flashing Power LED and flashing CapsLock (continuously) + a very soft "ticking" noise near the DC Jack,
I wonder if re-flashing the BIOS might be of any use here.
As far as I understood, steady flashing either means insufficient power or a CPU/GPU/Motherboard issue. I use the original 65watt power supply.
There are so many threads out there, but most of the solutions involve flashing codes, which I dont have or claim that you MUST use the original power supply, do a hard reset, reseat the RAM, clean the RAM,... -
Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about...
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