[TechAssist] Re: Daewoo DTQ26F1SC Chassis CN2001


Hi Buck,
The service bulletin notes for the regulator circuit said to check the
following out of circuit: R818 (.33 ohm 1w), R806 (390k 1/2w), R812 (100 ohm
1/4w).  Failure on these are highly possible due to thermal runaway.  Then
test Q805, Q803 and Q804.  To test you might remove Q402 (HOT), and use a
25w-120v bulb across the 103vdc and see if it flashes.
Replace C404 1mf-160v with a 3.3mf-160v no matter what, and place a 33 ohm
1/4w on Q402 between Base to Emitter.  In my fix I had to replace Q402, and
then added the resistor.
The notes I have for crossing these are:
Q402 - D1880 - NTE 2353 (HOT)
Q803 - C2500 - NTE 2363
Q804 - E13009-2 - NTE 379
Q805 - C3203 - NTE 382
Hope this helps.
Bill

Premium Technologies
Ocean Park, WA. 98640
Phone: (360) 665-5984
Fax:     (605) 253-4530
email: premtech@xxxxxxxxxxxxxx
----- Original Message -----
From: "sterling pasher" <spasher@xxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, March 30, 2002 11:35 AM
Subject: [TechAssist] Re: Daewoo DTQ26F1SC Chassis CN2001


>
>
>
>
>
> > > HI guys: I see a lot off Deawoo traffic lately. Perhaps some one can
> give
> > me
> > > some advice. I have one that came in with the following symptoms. R818
> > open,
> > > 103 volt line OK, but only 10 volts on the 12 volt line, and the 5
line
> > volt
> > > is OK. The set won't come on.
> > > Any help would be appriecated.
> >
> > > Buck Pasher
> > > Bucks TV
> > > Gander NF Canada
> > > spasher@xxxxxxxxxxxxxxxxx
> > >
> > >
> >
>
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