Panasonic HT-P54V20A Fuse F501 open

[Michaeld4500]

Panasonic HT-P54V20A, Power supply board ETX2MM807MSL Fuse F501 open, no standby led, tested C501 14.05nf, D501 0.6Mohms across the AC pins and 8.40Mohms. I am going to replace F502, C501, D501.
It there any other components I should test, replace ?? Thanks
Drawing is from HT-50v20 manual.

[tw2005]

Re: Panasonic HT-P54V20A Fuse F501 open

your TV that broke or a broken TV project? Can't say I've read much on P board failures on these yet. Was it a power surge / lightning hit?

I'd be checking the mosfets on the PSU too. Fuses usually blow due to a short

I'd check RF601 which is a fusible resistor, will look like a ceramic resistor, check the bridge rectifier for short.

I'd also post some images top and bottom for everyone to see.

I don't have much experience with the P boards but i do have the 50" version P spared



I would check out the SC board while you're having a pke too. check SC2 across the pins for short, check Q661 on the Sc also see if shorted.

[Roj.]

Re: Panasonic HT-P54V20A Fuse F501 open

Hello Michael4500

Do you have a manual for TH-P54V20A or is your pdf of the P-Board from a related manual?

Roj.

[Michaeld4500]

Re: Panasonic HT-P54V20A Fuse F501 open

Hi

I only have the Ht-p50v20a manual, the TV was a freebie, the owner said they were unable to turn it one day.
I will check those parts as suggested and reply soon. Thanks for the help