[TechAssist] Re: FIXED - Daewoo DTQ-29S1FCN, Chassis CN2001


Hi Ralph,
The service bulletin notes says for horizontal shift, change R420 to a 1.8K
1w, change C505 to a 1000pf-50v Mylar, Replace D504 - 1N4148.  These parts
are available in a kit#DECAKIT01.
Hope this helps.
Bill

Premium Technologies
Ocean Park, WA. 98640
Phone: (360) 665-5984
Fax:     (605) 253-4530
email: premtech@xxxxxxxxxxxxxx
----- Original Message -----
From: "Ralph Dorsey" <Merlin-Wizard@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, March 30, 2002 10:53 AM
Subject: [TechAssist] Re: FIXED - Daewoo DTQ-29S1FCN, Chassis CN2001


>
> Ok thankx, one more question,,,i've had a few with the horizontal shift,
is the fix
> for that problem to replace the horz freq. (hold) control on the chassis.
Or is
> there something else I don't know about. We've been replacing the
horizontal hold
> (freq.) control on the 4-5 of these we've had with that problem.
>
> Ralph Dorsey
> Atlas TV Inc
> 3945 s 76th St.
> Milwaukee Wi 53220
> 414-545-2303
>
> Eric Manuel wrote:
>
> > Hi Ralph it,s a 33 ohm resister..Eric
> > Eric Manuel
> > Deer Lake Nfld
> > Canada
> >
> > "Ralph Dorsey Atlas TV Milwaukee, WI" wrote:
> > >
> > > is that a point 33 ohm (.33) or a 33ohm. Most modifications in horz
> > > circuits I've seen usually use something less than 1 ohm. Just want to
> > > know because I don't have that service bulletin. but i do know about
the
> > > caps
> > >
> > > Premium Technologies wrote:
> > >
> > > >Problem:  Dead, main fuse blown.  Customer complained that for a long
time
> > > >unit would shut down, and after awhile it could be turned on and run
again
> > > >for a random period of time.
> > > >
> > > >Notes:  Several service bulletins outlining a number of modifications
exist
> > > >for this unit.  Service notes cover horizontal shift, channel missing
or
> > > >shipped, Thermal runaway and notes regarding repair of regulator
circuit.
> > > >
> > > >FIX:  Testing found a number of defects and the following were
replaced,
> > > >Q805 (C3203/crossed with NTE382),  HOT Q402 (D1880/crossed with NTE
2353),
> > > >C404 (1mf-160v replaced with 3.3mf 160v per service bulletin)  In
addition,
> > > >a 33 ohm 1/4w resistor was added to HOT Q402, Base to Emmitter per
service
> > > >bulletin.
> > > >
> > > >Unit has been running flawlessly now for approximately three hours.
Heat on
> > > >Q402 appears nominal.
> > > >
> > > >Hope this helps.
> > > >Bill
> > > >
> > > >Premium Technologies
> > > >Ocean Park, WA. 98640
> > > >Phone: (360) 665-5984
> > > >Fax:     (605) 253-4530
> > > >email: premtech@xxxxxxxxxxxxxx
> > > >
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> > > >
> > >
> > > --
> > > Ralph Dorsey
> > > Atlas TV Inc.
> > > 3945 s 76th St.
> > > Milwaukee.Wi 53220
> > > 414-545-2303
> > >
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>
>
>
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