Panasonic DVD/VCR won't power on

[[email protected]]

My in-laws have a Panasonic PV-D4734S DVD/VCR. Was working fine, but
just quit. I opened it up, and the fuse was blown. I replaced the
fuse, it doesn't blow now, but neither will the unit power up. I've
measured 110VAC as far as the fuse, but no further.

Are there any common problems that affect these? If not, can anyone
recommend a good place to get a schematic and/or service manual?

I'm moderately capable with electronics (I repair vintage portable
organs as a hobby), but don't have much experience repairing these
newfangled "disposable" things. Seems like a lot of hassle to pull it
all apart to access the underside of the board for tracing and testing
the circuit, but I figured I'd give it a shot before throwing it away.

 

[Jim Land]

[email protected] wrote in @i3g2000cwc.googlegroups.com:

can anyone
recommend a good place to get a schematic and/or service manual?
Panasonic PV-D4734S DVD/VCR

https://www.manualsparadise.com/ShowProductsForModel.do?model=M49118163

 

[[email protected]]

check pr1005 ? may be open and there is a zener (20v) diode in the
power supply that will be shorted

 

[Homer J Simpson]

My in-laws have a Panasonic PV-D4734S DVD/VCR. Was working fine, but
just quit. I opened it up, and the fuse was blown. I replaced the
fuse, it doesn't blow now, but neither will the unit power up. I've
measured 110VAC as far as the fuse, but no further.

If it has a switch mode power supply that may have lunched. I hate
combination units.

 

[Poolvision]

Replace PR1005 Part# UNH000600A, MAZ22400A ref# d1041, B0JAMK000016
ref# d1012 and q1001 and q1002 if shorted