Hi Robert1000,
in my case the solution, as I wrote in my last post, was replacing all of the SMD resistors from RP813 to RP817.

Did you try to check their values after desoldering the jumper which connects the side of RP817 to RP818 ?

If those resistors are good and (before restoring the jumper) you don't see any unwanted resistance between them and other components around, there are good chances that the power supply is fine (of course you have to restore the jumper).

Anyway, before removing the light bulb, try to replace RP822 (the PFC block current...

I know you guys couldn't wait anymore to see how things ended up with this power supply, could you ?

So finally, here I am for the epilogue ...

To sum up, it was necessary to replace FP801S, QP801S twice (as you know, something went wrong while troubleshooting), CP814 (all blown) and ICP801 twice: the first time just to check if it was the reason of the failure, the second time because it measured only 6 Ohm between Pin 1 (INV) and Pin 6 (hot ground).

Then, during the tests, CP809 began to bulge, so I replaced it as well ...

At the end, when...

I know you guys couldn't wait anymore to see how things ended up with this power supply, could you ?

So finally, here I am for the epilogue ...

To sum up, it was necessary to replace FP801S, QP801S twice (as you know, something went wrong while troubleshooting), CP814 (all blown) and ICP801 twice: the first time just to check if it was the reason of the failure, the second time because it measured only 6 Ohm between Pin 1 (INV) and Pin 6 (hot ground).

Then, during the tests, CP809 began to bulge, so I replaced it as well ...

At the end, when...

Hi all,
this unit comes from a samsumg LCD TV LE32C530F1W which stopped working after making a strong noise like something was exploded inside of it.
I opened it and found that fuse FP801S was blown, capacitor CP814 was completely disintegrated and MOSFET QP801S was shorted.
I replaced all of them and instead of the fuse I connected a 100 Watt bulb. Then, without connecting it to other TV boards, I switched it on, but the bulb begun to blink.
I thought that maybe the bulb was somehow interfering with the normal operation of the power supply, so I replaced it with a fuse,...

By the way, thanks for te links. As for the replacement board, unfortunately that customer does not sent it to my country. And here in Italy I can find it, but the price is not less than 30€, shipping charges included.

Anyway, now it's a matter of principle: I would like to find the faulty component, at least in order to learn something more.

If you need any board pictures, I can take some and upload them here ...

Yes, I replaced all of them except for the diode which should be DP804 (but I checked it and should be ok) and the DIP IC (ICB801, ICE3BR1765J), which is responsible for the standby voltage (which is ok, in my opinion).

Thank you for your response....

Hi all,
this unit comes from a samsumg LCD TV LE32C530F1W which stopped working after making a strong noise like something was exploded inside of it.
I opened it and found that fuse FP801S was blown, capacitor CP814 was completely disintegrated and MOSFET QP801S was shorted.
I replaced all of them and instead of the fuse I connected a 100 Watt bulb. Then, without connecting it to other TV boards, I switched it on, but the bulb begun to blink.
I thought that maybe the bulb was somehow interfering with the normal operation of the power supply, so I replaced it with a fuse,...

Hi guys, so finally I decided to join your forums. I found this place when I was looking for answers for repairing some TV sets, DVD recorders and other electronic equipments.

Hope to learn more about electronics here and improve my troubleshooting skills.​...