I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

Upon bringing it home and plugging it up, it showed a standby light.

I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

The screen seems to blackout and stay black, but with a flashlight I can see the display.

With my Playstation 4 connected via HDMI, and running a game I can hear sound.

Assuming...

Hi there. I am currently trying to figure out if I am undergoing the sunk cost fallacy.

I’ve bought a very cheap MacBook Pro 14 A2442 off eBay. I did some checking and the symptoms were pointing towards a NAND failure.

After some consideration I got an original logic board from Apple as an replacement. However after installing I have no backlight.

I can see the Apple logo if I point a flashlight at it but the MacBook seems to be going to recovery mode.

anybody have an idea of what’s up here? Is the board dead on arrival or is my screen...

Apple MacBook Pro 13" A1706 Logic Board 820-00923 Schematic & Board View...

I hope this is the right forum to post in despite not technically being a repair, but still a question of swapping boards.

I thought I'd explore the possibility to upgrade an existing working Samsung ue55nu7096u with the logic board (and power board if needed) of a newer model (ue55ru7105k) of the same size and appearance (and resolution). The reason being I'd like the extra inputs of that board including component in, an extra HDMI port and bluetooth. Its panel is broken so I have no use for the board otherwise.

The models launched in 2018 and 2019 respectively....

Hi all, I just want to share the repair of my 60PK550-UA TV set.

The TV set was powering on, just no image. After verification, nothing wrong on the YSus or ZSus boards. Nothing wrong on the main board either.

But I noticed that the LED was not flashing on the Logic Control Board. This is an EBR63450301. The LED is supposed to flash even with all the flat cables disconnected, with only the power cable attached.

All the voltages measured at the electrolytic capacitors on the board were good. From top left to bottom right:
C57: 3.30V
C61:...