[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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