[TechAssist] Re: FIXED - Daewoo DTQ-29S1FCN, Chassis CN2001
- From: Ralph Dorsey <Merlin-Wizard@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 30 Mar 2002 12:19:03 -0800
Thank-you
Ralph
Premium Technologies wrote:
> 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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--
Ralph Dorsey
Atlas TV Inc
3945 s 76th St.
Milwaukee Wi 53220
414-545-2303
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