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

  • From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 27 Mar 2002 20:06:54 -0500

OK Bill,
If you re-read the tip, I believe it is saying replace those two
transistors, add modification resistor to the HOT. Speaking of three parts.
I will update this tip to clarify this information by adding the location
number of the HOT since it is confusing.
Jeff

FAX 717-564-4952
Jeff Dougherty
Intrepid Video & Electronics
501 Luther Rd
Harrisburg, PA 17111
717-909-8844
VCR tips, electronics info & general interest.
www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com


----- Original Message -----
From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, March 27, 2002 4:35 PM
Subject: [TechAssist] Re: Daewoo, DTQ-29S1FCN, Chassis CN2001


>
> Hi Jeff
> Yes, the location number for HOT is Q402, not Q804 as in the repair tip.
I
> have my eyes on it as we speak.  HOT is definitely Q402 and crosses to an
> NTE 2353, while Q804 I think crosses to an NTE 379 - major difference.  I
> don't yet have my parts to complete this repair but I will keep you
updated.
> The service bulletin said, "For thermal runaway of Q402, add a 33 ohm 1/4w
> resistor to Q402, Base to Emitter."  There are four bulletins on this that
I
> could find.
> Bill
>
> Premium Technologies
> Ocean Park, WA. 98640
> Phone: (360) 665-5984
> Fax:     (605) 253-4530
> email: premtech@xxxxxxxxxxxxxx
> ----- Original Message -----
> From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, March 27, 2002 12:50 PM
> Subject: [TechAssist] Re: Daewoo, DTQ-29S1FCN, Chassis CN2001
>
>
> >
> > Bill,
> > Thanks for the plug...
> > Which one of those is the HOT? It would be nice if others posted ALL
> > pertinent information when they post fixes, but I can only enter the
> > information provided to me.
> > Can you verify if this is what fixed your unit and what location number
> the
> > HOT is?
> > Thanks.
> > Jeff
> >
> > FAX 717-564-4952
> > Jeff Dougherty
> > Intrepid Video & Electronics
> > 501 Luther Rd
> > Harrisburg, PA 17111
> > 717-909-8844
> > VCR tips, electronics info & general interest.
> > www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> >
> >
> > ----- Original Message -----
> > From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Tuesday, March 26, 2002 8:28 PM
> > Subject: [TechAssist] Re: Daewoo, DTQ-29S1FCN, Chassis CN2001
> >
> >
> > >
> > > Hi Jeff,
> > > They should have it, it's a heck of a tool!  You might want to verify
> that
> > > fix though, in that record number.  I found other references from a
> > service
> > > bulletin that suggest, that a 33ohm 1/4w resistor be placed from base
to
> > > emitter on Q402, and not on Q804.  My thought being that maybe the pos
> > > numbers got transposed or mixed up.
> > > Thanks Jeff!
> > > Bill
> > >
> > > Premium Technologies
> > > Ocean Park, WA. 98640
> > > Phone: (360) 665-5984
> > > Fax:     (605) 253-4530
> > > email: premtech@xxxxxxxxxxxxxx
> > > ----- Original Message -----
> > > From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Tuesday, March 26, 2002 5:14 PM
> > > Subject: [TechAssist] Re: Daewoo, DTQ-29S1FCN, Chassis CN2001
> > >
> > >
> > > >
> > > > Bill,
> > > > Not everyone on this list has the Tech Repair CD nor do they know
what
> > you
> > > > refer to when you mention that record number.
> > > > Q804* Q805 IN POWER SUPPLY* ADDED MOD* 33OHM*1/2W C TO E OF H.O.T.
> > > > I take it to mean leave the jumper in place.
> > > > Good luck.
> > > > Jeff
> > > >
> > > > FAX 717-564-4952
> > > > Jeff Dougherty
> > > > Intrepid Video & Electronics
> > > > 501 Luther Rd
> > > > Harrisburg, PA 17111
> > > > 717-909-8844
> > > > VCR tips, electronics info & general interest.
> > > > www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Premium Technologies" <premtech@xxxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Monday, March 25, 2002 9:33 PM
> > > > Subject: [TechAssist] Daewoo, DTQ-29S1FCN, Chassis CN2001
> > > >
> > > >
> > > > >
> > > > > Hi Group,
> > > > > Got this set in today dead, blown fuse.  Traced problem to Q804
and
> > > > ordered
> > > > > it, and also found C404, 1mf-160v open, no ESR reading on
> CapAnalyzer
> > at
> > > > > all.  Customer complained that for a long time set would just
> shutdown
> > > > > randomly.  But, after awhile, it could be turned-on again. He ran
it
> > > this
> > > > > way for some time, until recently it shut-down and that was all
she
> > > wrote.
> > > > > Went to repair tips and found notes on replacing C404 with a
> > 3.3mf-160v
> > > > and
> > > > > a modification outlining the installation of a 30 ohm 1/2w
resistor.
> > > Can
> > > > > anyone expound on this?  The notes I found were in record #17210
and
> > I'm
> > > > not
> > > > > sure if the connection point of this modification refers to the
Base
> > and
> > > > > Emitter connection of Q804 or if it's reference could mean just
> > > replacing
> > > > > the jump connection that already exists at J246?
> > > > > I've tried looking for other sources to further explain this
> > > modification
> > > > > and couldn't readily find any.
> > > > > Any insight would be most appreciated.
> > > > > Bill
> > > > >
> > > > > Premium Technologies
> > > > > Ocean Park, WA. 98640
> > > > > Phone: (360) 665-5984
> > > > > Fax:     (605) 253-4530
> > > > > email: premtech@xxxxxxxxxxxxxx
> > > > >
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