Samsung Plasma TV Model: PN64E533D2F No Power

[MobileXT]

I need to troubleshoot my Plasma TV Model Number PN64E533D2F that wont turn on. I open the back cover and check for fuses diodes etc. I notice that the main fuse closed to the AC input power were blown and check some diodes around the perimeter on the Power suppply Board number BN44-00515A are shorted but I don't know the parts number because I don't have a the service manual. If somebody can guide me on my troubleshooting I would really appreciate it.

Thanks,
MobileXT

[sordids999]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem

[MobileXT]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem

I will attached photo tonight when I got home. Thanks!

[MobileXT]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

I will attached photo tonight when I got home. Thanks!

Ok Here is the pictures and these are the component that are open.

F801s
DX801
DS805
DQ804

Thanks,
MobileXt

[MobileXT]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

I found the shorted Mosfet QP804 P/N? causing the fuse F801s to blown, but I don't know the parts number. Anybody has a schematic diagram for the parts number for QP804. I would really appreciate it if somebody there can give the parts number. Thanks!

[freakaftr8]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

The part numbers listed on the mosfet. Is it the primary mosfet all the way on the left right above the fuse? These power supplies are known for blowing those MOSFETs and then taking the fuse out as well

[MobileXT]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

The part numbers listed on the mosfet. Is it the primary mosfet all the way on the left right above the fuse? These power supplies are known for blowing those MOSFETs and then taking the fuse out as well

Thanks freakaftr8 I will try look at it.

[freakaftr8]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Keep in mind I believe there's two of those MOSFETs. The one that shorted is it the one all the way on the left heatsink right above the fuse? If so you want to replace both of those MOSFETs in pairs as one could damage the other

[MobileXT]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Keep in mind I believe there's two of those MOSFETs. The one that shorted is it the one all the way on the left heatsink right above the fuse? If so you want to replace both of those MOSFETs in pairs as one could damage the other

Thanks for the info I will try order two mosfet. By the there's is no part number where the place that you told me. The box is empty no parts number. Any chance what is the parts number in mouser.com. Thanks

[MobileXT]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

QP804 P/N= K18A60V this is the number on the MOSFET. Is this correct?

[freakaftr8]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Yep that's the one. Replace both. Order two and the main fuse also

[tom66]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

I would usually suggest replacing any driver ICs connected to the MOSFET as well.

[b1ack1abe1]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Hey MobileXT, I'm having the same issue on the same model TV, I wanted to ask you if you ever ended up replacing the MOSFETS, IC, and the Fuse and if that worked for you. I read this thread and I bought the fuse the MOSFETS and the IC between the two MOSFETS but I have yet to replace them.

[geeforce]

Re: Samsung Plasma TV Model: PN64E533D2F No Power

Hey MobileXT, I'm having the same issue on the same model TV, I wanted to ask you if you ever ended up replacing the MOSFETS, IC, and the Fuse and if that worked for you. I read this thread and I bought the fuse the MOSFETS and the IC between the two MOSFETS but I have yet to replace them.

Any luck?