Panasonic LCD TV turns off after few seconds! HELP

[kajaalyo]

Re: Panasonic LCD TV turns off after few seconds! HELP

You also need to jumper the backlight on to the 5v standby to force it on

Hy, im done my mom is taking tv to service. thank you for all your help

[tw2005]

Re: Panasonic LCD TV turns off after few seconds! HELP

Hy, im done my mom is taking tv to service. thank you for all your help

I have a feeling since you swapped the CCFL connectors (No.1) around and the dark area remained in the same postion then it may be defective CCFL tubes which are part of the panel assembly.

[kajaalyo]

Re: Panasonic LCD TV turns off after few seconds! HELP

Hy, so i got call from repairshop today and the problem is that the motherboard is dead. Just to let you know. Repair would cost 170EUR (mobo + work)! I will try to find new mobo myself Bye

[kajaalyo]

Re: Panasonic LCD TV turns off after few seconds! HELP

I have a feeling since you swapped the CCFL connectors (No.1) around and the dark area remained in the same postion then it may be defective CCFL tubes which are part of the panel assembly.

Hy, in repairshop they said that its the bad main board, i have a filling that its not. So my question is, if i completly disconnect ccfl inverter and tv still doesnt stay turned on, it can be bad ccfl anyway? thanks!

[CapLeaker]

Re: Panasonic LCD TV turns off after few seconds! HELP

The picture issue is not the main board. However if the backlight board is disconnected the TV should stay on and you should see something while shining a flashlight into the screen. You can also try to disconnect the backlight and the tcon board and see if it stays powered up.

[kajaalyo]

Re: Panasonic LCD TV turns off after few seconds! HELP

The picture issue is not the main board. However if the backlight board is disconnected the TV should stay on and you should see something while shining a flashlight into the screen. You can also try to disconnect the backlight and the tcon board and see if it stays powered up.

Hy, it was the backlight problem, plastic behind backlight line was broken, so spark was jumping from + to ground on backplate.
But now i have even bigger problem :SSS
I pulled some part out of upper layer of display :S

Can i do something to fix it? here are the pictures




Please help, i feel like shit right now :S

Thank you

[audiofreak19]

Re: Panasonic LCD TV turns off after few seconds! HELP

That's a tab bond from the lcd display. Not repairable.

[CapLeaker]

Re: Panasonic LCD TV turns off after few seconds! HELP

That panel is toasted!

[mikicabresje]

Re: Panasonic LCD TV turns off after few seconds! HELP

i resolved problem, PLS remove BD9897fs protectio mode. i put on 17pin diode on ground ant TV work good.
http://english.electronica-pt.com/lcd-repair?p=bd9897fs
https://cdn.badcaps-static.com/pdfs/...a70699e3c8.pdf

[budm]

Re: Panasonic LCD TV turns off after few seconds! HELP

i resolved problem, PLS remove BD9897fs protectio mode. i put on 17pin diode on ground ant TV work good.
http://english.electronica-pt.com/lcd-repair?p=bd9897fs
https://cdn.badcaps-static.com/pdfs/...a70699e3c8.pdf

That is not a fixed, that is bypassing the safety shutdown circuit.