The DVP642 is a divx player and is worth fixing, most DVD players won`t
play divx, most likely power supply problem. find another dvp642 and swap
power supplies very easy, even if you can`t fix it you should keep it, a
very common player easy to find parts for.
"Arfa Daily" wrote in message
...
"BW" wrote in message
...
Hi all,

I bought a Philips DVP642 DVD player less than an year ago. I had been
playing DVDs and CDs nicely till a few days ago. I watched a DVD movie
on it last weekend, and after that I wanted to play some mp3s on it on
wednesday. When I clicked the eject button on it, it came out of power
down mode, and I heard a chirp sound in the speakers and it went back to
power down mode again.

I tried it a couple of times and got the same reponse. I pulled the plug
and let it rest for a while and tried again. Response was same!

Does anyone know where to get the service manual for it? Or does anyone
have some other tips for me? Except the advice of sending it back to
Philips. I would prefer to make it work myself if it is just some
configuration setting which needs to be reset.

Thanks in advance,
/KS

Hmmm.

Lots of advice, but not much of it very helpful.

Almost all of the Philips DVDs that I've ever repaired, irrespective of
model, have had a similar fault, and this is one of the PSU secondary side
Schottky diodes short circuit. This may not be the case with your machine,
and I agree with some of the other posters that, for the most part, DVD
players are not worth wasting time on, but it's got to be worth five
minutes
of your time with an ohm meter just in case.

Just a word on safety. Remember that this is a switch mode power supply,
which is POTENTIALLY LETHAL. Do not check it or work on it live, unless
doing so on a proper workshop isolation transformer, and even then only
with
care, and beware of the main smoothing cap on the primary side, remaining
charged, as it can do on a switcher that's not starting up. Won't kill
you,
but may result in a smashed board where you involuntarily sling it against
the wall ... !!

When checking Schottky diodes, remember that they have a significantly
lower
forward resistance than silicon types, but will still have a virtually
infinite reverse reading. Any diode that reads low both ways should be
considered suspect, but confirm that by unplugging the PSU output plug, as
you can be fooled by reading across the VFD heater.