[TechAssist] Re: FIXED - Daewoo DTQ-29S1FCN, Chassis CN2001
- From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 30 Mar 2002 09:50:27 -0800
Hi Ralph,
That was a 33 ohm 1/4w added to Q402 Base to Emitter.
Bill
Premium Technologies
Ocean Park, WA. 98640
Phone: (360) 665-5984
Fax: (605) 253-4530
email: premtech@xxxxxxxxxxxxxx
----- Original Message -----
From: "Ralph Dorsey Atlas TV Milwaukee, WI" <Merlin-Wizard@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, March 30, 2002 4:50 AM
Subject: [TechAssist] Re: FIXED - Daewoo DTQ-29S1FCN, Chassis CN2001
>
> 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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