Re: Need help finding a schematic for a Quasar TV/VCR combo

From: mikeydude (mikeydude_at_hotmail.com)
Date: 03/28/05 

Date: Mon, 28 Mar 2005 07:04:11 GMT

Thanks for your post.
I was concerned about D851. I'm glad to hear it is a thermistor.
I unsoldered it from the board, so I'm sure there are only two leads coming
from it.
There are some markings on it, and I remember 050K being one of them, if
that's any help.

As far as your questions:
RL010 is a relay which turns the main power on/off. (I only traced out the
leads connected to the circuit in question.)

D1001 - I'm pretty sure it is a rectifier which feeds another (lower
voltage?) circuit. It looks like a small IC with 4 legs.
The symbol I drew is from the PCB diagram. (I started to trace out the rest
of that circuit too, since the PCB had been hot there, but I didn't since
the components checked out ok).

Really then, the only ID I need now is for R804. It was too badly burned to
ID.
It looks like a 1/2 watt resistor.
R802 is also bad, but it is a power resistor - 180ohm, 3watt.

Thanks,
 -Mike
(P.S. I checked out your website. We have a lot of similar interests!)
----------------------------------------------------------------
"Graham W" <graham@his.com.puter.INVALID> wrote in message
news:4244b993$0$94466$ed2619ec@ptn-nntp-reader01.plus.net...

> D851 is certainly not a diode and almost certainly not broken,
> you'll be glad to hear! It is a PTC thermistor to control the de-gauss
> current through the de-gauss coils. However, there are usually three
> legs to this device so check again to see if there's another connection.
>
> What are the two rectangular things you have drawn - one has RL010
> in it and the other a diode symbol? Are there further circuit connections
> to those two which you haven't indicated?
>
>
> --
> Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
> WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex
> Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps
> Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
>

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