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Search: Posts Made By: brad2157
Forum: Troubleshooting TVs and Video Sources 06-14-2022, 02:46 PM
Replies: 24
Views: 1,742
Posted By brad2157
Forum: Troubleshooting TVs and Video Sources 12-26-2021, 09:16 PM
Replies: 24
Views: 1,742
Posted By brad2157
Re: Samsung un58tu7000fxza - Power cycles with no picture, only backlight

I was thinking itís most likely a bad panel as well, but wanted some confirmation before I scrap it. I checked all the caps on the ďdriver boardsĒ on mine and didnít see any issues there. The tape...
Forum: Troubleshooting TVs and Video Sources 12-26-2021, 09:09 PM
Replies: 24
Views: 1,742
Posted By brad2157
Re: Samsung un58tu7000fxza - Power cycles with no picture, only backlight

Sorry for the delay. I usually get notifications on comments / replies, but I didnít receive any for this post (unless it happened to go to my spam folder).

Here are some pictures of the TV. Let...
Forum: Troubleshooting TVs and Video Sources 12-23-2021, 10:10 PM
Replies: 10
Views: 550
Posted By brad2157
Re: Vizio E70-E3 Two white vertical lines

Received the other replacement main board in. That DID FIX the video and loading issue. Now I can’t get any of the quick launch buttons to respond on the remote (netflix, hulu, etc..). That’s my...
Forum: Troubleshooting TVs and Video Sources 12-20-2021, 11:26 PM
Replies: 10
Views: 550
Posted By brad2157
Re: Vizio E70-E3 Two white vertical lines

Received replacement main board in today and found out it’s not the correct board. Already purchased another board from a different eBay seller. Once it comes in, hopefully it will work out.
Forum: Troubleshooting TVs and Video Sources 12-20-2021, 11:24 PM
Replies: 24
Views: 1,742
Posted By brad2157
Forum: Troubleshooting TVs and Video Sources 12-15-2021, 11:39 PM
Replies: 24
Views: 1,742
Posted By brad2157
Samsung un58tu7000fxza - Power cycles with no picture, only backlight

I have a Samsung un58tu7000fxza that powers on (no image, only backlight) but keeps restarting. When it starts up, the backlights seem to be full brightness for 1 sec., off for 1 sec., on again with...
Forum: Troubleshooting TVs and Video Sources 12-14-2021, 07:40 PM
Replies: 10
Views: 550
Posted By brad2157
Re: Vizio E70-E3 Two white vertical lines

Iíll report back once I get another replacement board in.
Forum: Troubleshooting TVs and Video Sources 12-14-2021, 09:32 AM
Replies: 10
Views: 550
Posted By brad2157
Re: Vizio E70-E3 Two white vertical lines

Thatís what I was thinking, but I wanted to make sure before I return the main board. Thanks for your help!
Forum: Troubleshooting TVs and Video Sources 12-13-2021, 09:33 PM
Replies: 10
Views: 550
Posted By brad2157
Re: Vizio E70-E3 Two white vertical lines

Yes, thatís correct. The original board does not show any lines when the Vizio logo comes up, it just wonít boot.
Forum: Troubleshooting TVs and Video Sources 12-13-2021, 08:06 PM
Replies: 10
Views: 550
Posted By brad2157
Re: Vizio E70-E3 Two white vertical lines

I did put the original main board back in and there are no lines on the screen. It just wonít actually ďboot upĒ with the original board in. The seller says that because the original board wouldnít...
Forum: Troubleshooting TVs and Video Sources 12-13-2021, 05:11 PM
Replies: 10
Views: 550
Posted By brad2157
Vizio E70-E3 Two white vertical lines

I picked up a Vizio E70-E3 for free that shows Vizio logo and then goes to a black screen. Original owner said he started having wifi issues and then he tried to reset the TV and thatís when it...
Forum: Troubleshooting TVs and Video Sources 12-11-2021, 07:46 PM
Replies: 95
Views: 5,254
Posted By brad2157
Re: Samsung 4K led model UE50NU7445U no picture

There are better videos out there, but this is just one I found.

https://youtu.be/pfrRhw7-ZII
Forum: Troubleshooting TVs and Video Sources 11-27-2021, 09:22 AM
Replies: 10
Views: 703
Posted By brad2157
Re: Sony KD-65X750F - no lights/picture/sound

I installed the used replacement main board and that fixed my issue. I don’t have a lot of time to try to isolate the issue on the original board anytime soon, but I may try to do that at some point.
Forum: Troubleshooting TVs and Video Sources 11-21-2021, 02:38 PM
Replies: 10
Views: 703
Posted By brad2157
Re: Sony KD-65X750F - no lights/picture/sound

Thank you for all the input on this! I went ahead and bought a used main board to see if that fixes the issue. Iíll report back once I get it in and installed. I may be able to further isolate...
Forum: Troubleshooting TVs and Video Sources 11-21-2021, 11:31 AM
Replies: 10
Views: 703
Posted By brad2157
Re: Sony KD-65X750F - no lights/picture/sound

Inductor voltages on main board:

Measurements between inductor @ ground
2R2 = 3.34 VDC (above Sony BCX printed on board)
1RO = 1.04 VDC (to left of processor / white cover)
2R2 = 5.16 VDC (top...
Forum: Troubleshooting TVs and Video Sources 11-20-2021, 07:16 PM
Replies: 10
Views: 703
Posted By brad2157
Re: Sony KD-65X750F - no lights/picture/sound

I got the TV for free from the original owner. All he told is that it just quit working one day. I know thatís really generic, but thatís all I know. Thereís no status LED lit at all.
Forum: Troubleshooting TVs and Video Sources 11-20-2021, 07:13 PM
Replies: 10
Views: 703
Posted By brad2157
Re: Sony KD-65X750F - no lights/picture/sound

Thank you! Iíll look at it tomorrow and see what I can find out voltage wise on those inductors. Iíll also check for the red light as well.
Forum: Troubleshooting TVs and Video Sources 11-20-2021, 08:45 AM
Replies: 10
Views: 703
Posted By brad2157
Re: Sony KD-65X750F - no lights/picture/sound

I apologize for not including any pictures on my initial post.

Here are some pictures of the power and main boards. I took three pictures of the main board, one complete picture and two half...
Forum: Troubleshooting TVs and Video Sources 11-18-2021, 08:46 PM
Replies: 10
Views: 703
Posted By brad2157
Sony KD-65X750F - no lights/picture/sound

I searched the forum first, but could not locate anything with this model Sony TV.

Sony KD-65X750F

Thereís good AC power going into power supply board. There is no standby light lit on the TV...
Forum: Troubleshooting TVs and Video Sources 11-18-2021, 08:23 PM
Replies: 446
Views: 661,219
Posted By brad2157
Forum: Announcements & Related News 11-18-2021, 08:05 PM
Replies: 30,094
Views: 2,999,333
Posted By brad2157
Re: New Members - please post your introductions here

Hello, Iím new to the forum! Iím looking to learn about repairing some broken TVís that I have. I have some electrical experience. Iím glad I found this forum!
Showing results 1 to 22 of 22

 
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