LE40r87bd - Works after 10+mins

[speedypro]

I have this tv in for repair. The tv works perfectly after an initial 10min. During that 1o mins, it's hell; tv restarts, clicks, screen gets fuzzy etc. I dont know where to start. Caps look of etc.

I've added two pictures.

[vinceroger69]

Re: LE40r87bd - Works after 10+mins

Edited post as linked the wrong mainboard, but that board does looks like it may of been reflowed? as looks like a lot of flux on the board

[CapLeaker]

Re: LE40r87bd - Works after 10+mins

What is all that goo over the bottom part of that main board? Everything seems to be covert in something. Yuck. That should be cleaned up. Can we see the backside of the main board too?
On the PSU in the middle on the right side there is a pin out chart. Hook everything up and post the DC voltages measured on that connector. You can try heating one board with a hair dryer for 2-3 mins and see if the problem goes away.

[ReeceyBurger123]

Re: LE40r87bd - Works after 10+mins

For a start your mainboard has no bloody heatsink ! Also Vince its not flux its silicon for the thermal pads that are supposed to be on the cpu.

[sordids999]

Re: LE40r87bd - Works after 10+mins

For a start your mainboard has no bloody heatsink ! Also Vince its not flux its silicon for the thermal pads that are supposed to be on the cpu.

lol thats why i had to look twice myself

[ReeceyBurger123]

Re: LE40r87bd - Works after 10+mins

lol thats why i had to look twice myself

Lol Cpu prolly over heating they run bloody hot on these boards, I have the LE37R88BD downstairs same board and put a huge heatsink on the cpu

[vinceroger69]

Re: LE40r87bd - Works after 10+mins

For a start your mainboard has no bloody heatsink ! Also Vince its not flux its silicon for the thermal pads that are supposed to be on the cpu.

Thanks reece some more good information too know/note down.

[srhofmann]

Re: LE40r87bd - Works after 10+mins

What's with the peeling sticker that says "bordeaux plus 40"

[speedypro]

Re: LE40r87bd - Works after 10+mins

Edited post as linked the wrong mainboard, but that board does looks like it may of been reflowed? as looks like a lot of flux on the board

yea I tried to reflow but same.

Lol Cpu prolly over heating they run bloody hot on these boards, I have the LE37R88BD downstairs same board and put a huge heatsink on the cpu

But it's the same after a reflow. Could it be the cpu?

[finntricky]

Re: LE40r87bd - Works after 10+mins

change the 2 silver SM caps 1000 - 10 in the white box area, they are a common fault with these boards,
also make sure you put the silicon pads and sheild back on,

[petehall347]

Re: LE40r87bd - Works after 10+mins

why is that resistor being like it is ?

[ReeceyBurger123]

Re: LE40r87bd - Works after 10+mins

change the 2 silver sm caps 1000 - 10 in the white box area, they are a common fault with these boards,
also make sure you put the silicon pads and sheild back on,

+1 and OP you better let us know if you fix this or not.

[speedypro]

Re: LE40r87bd - Works after 10+mins

change the 2 silver SM caps 1000 - 10 in the white box area, they are a common fault with these boards,
also make sure you put the silicon pads and sheild back on,

Will do. I'll hit up ebay then confirm. Thanks!

[speedypro]

Re: LE40r87bd - Works after 10+mins

change the 2 silver SM caps 1000 - 10 in the white box area, they are a common fault with these boards,
also make sure you put the silicon pads and sheild back on,

GUYS!!!! IT WORKED!!!! THANK YOU finntricky!

[finntricky]

Re: LE40r87bd - Works after 10+mins

GUYS!!!! IT WORKED!!!! THANK YOU finntricky!

No probs, glad i could help