JunkmanJimbo
Senior Member
Last Activity: 12-30-2024, 06:52 AM
Joined: 03-12-2017
Location: Mount Holly, NC
-
UPDATE: The main board was the problem. I just wish there was someone on here that could have told me how to fix the old one in order to save money. But, thanks for the help as always!... -
Actually I decided to order a board. It should be here Wednesday. I will update after that. Thanks for you help!...Leave a comment:
-
Thank you Diah. With that said, can you tell me the repairs that need to be made to get this board working again? As I said there is someone on Ebay offering repair for a high price. I can't afford it so I would rather find a way to fix it myself, with you guys help....Leave a comment:
-
Can someone answer this question, please?...Leave a comment:
-
So, are you saying that this eeprom will or will not cause the tv to show the standby light but not turn on?...Leave a comment:
-
I scraped it off the best I could so maybe it was paint. Will this eeprom cause the tv to show the standby light but not turn on?...Leave a comment:
-
I just found what appears to be a faulty IC chip on the main board....
Leave a comment:
-
Sharp lc-55p6000u won't turn on
Sharp lc-55p6000u won't turn on. The standby light is on but nothing happens when the power button on the tv or remote is pushed. I'm thinking this is a main board issue but they are expensive. I was wondering if anybody could tell me how to repair the main board I have. There is a repair service on Ebay but they're also expensive. Since there's a repair service for this main board I was hoping somebody could help me with the repair. The main board part number is 221999. Thanks!!...
-
I ordered and installed a power supply but that wasn't the problem. I dissassembled the tv to check the backlights. While checking the backlight strips with a LED backlight tester I found one backlight that wouldn't come on at first. After turning the tv on, all the backlights, including the one that wouldn't come on with the tester, came on and started flashing. These are 6 volt backlights. I checked the voltage at that one backlight and the voltage would climb to 12 volts +. So, I changed that one backlight with a new one and that fixed the problem. Thank you guys for all your help....Leave a comment:
-
I can't find the datasheet. I'm going to order another power supply to see if that fixes the problem. If that doesn't fix it I will assume there is a backlight problem. Thanks for your help. I will let you know if that fixes it....Leave a comment:
-
Where would I find that?...Leave a comment:
-
Come on Diah. You got me this far....Leave a comment:
-
I am getting steady voltage at the BL_ON terminal. Do you still think it's a backlight problem?...Leave a comment:
-
I looked for a LED driver board but apparently the only way to get it is to buy the power supply....Leave a comment:
-
I remved the power supply and I removed the LED driver board but I didn't see any cracked solder joints....Leave a comment:
-
The backlights remain flashing for 20 seconds after powering the TV off....Leave a comment:
-
I unplugged each of the 4 connectors of the LED cables one at a time. The backlights still blinked off and on. I tried unplugging all 4 and then there were no backlights.
But why would the backlights stay on for another 20 seconds after I power off the TV?...Leave a comment:
-
I checked all the transistors and all of them appear to be good....Leave a comment:
-
Can you tell me which one is the power transistor? Thanks!...Leave a comment:
-
Hey Diah. I decided to pull the yellow cable today. When I pulled the yellow cable between the LED driver board and the mainboard the backlights would not come on. When I plugged the cable back in the backlights still wouldn't come on. I had to unplug the power cord and plug it back in for the backlights to come back on, still blinkiing. What's your opinion on this? Thanks!
Something else I noticed.....when I turn the power off by the power button the backlights contnue to flash for another 20 seconds before they turn off....Leave a comment:
No activity results to display
Leave a comment: