[TechAssist] Re: Computer Monitor Schematics
- From: Kevin <kevintv@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 04 Jun 2003 18:44:59 -0700
I have worked on a KDS KD-1500V. Symptoms were the HV partially came up
with no picture and the cure was L401 (KDS-8028) was burnt and Q407
(IRF9610) was shorted. Had to get the coil from KDS. The value was
3.9uH.
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Technotronic
Dimensions
Sent: Wednesday, June 04, 2003 6:13 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Computer Monitor Schematics
Kevin:
Ever work on a KDs KD-1500N ? I got one I set aside long
time
ago. Original problem was No Hv, burning smell from inside. Flyback was
cracked open, so I replaced it with one from KDS, along with (2) 1K ohm
1/4
Watt Resistors right near it that were fried. These part Values were
what
KDS told me.
Monitor Came on, but when you change resolutions, the
Horizontal seems to shrink, and theres not enough Horiz Gain to make it
full
screen. As you change Resolution from 640-480 & up, the Picture seems
to
get dimmer. I was told its probably something in the B+ circuit, but
cannot
find anything. (have heard a lot about KDS Coils ? ) Only a 15" screen,
so I
have set it aside for whenever I could get a drawing.
Steve Hearns
Technotronic Dimensions, NY (USA)
1-877-817-9885 (Voice / Fax US Only)
WWW.TECHNOTRONIC-DIMENSIONS.COM
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, June 04, 2003 3:05 PM
Subject: [TechAssist] Re: Computer Monitor Schematics
> I have repaired 5 of the KDS model. The only fault I have found is
the
> flyback diodes connected to the ABL line go short. This short
sometimes
> takes out the HOT as well. You can test for this fault by measuring
the
> resistance (at high meg) from the anode (red cap) of the flyback to
> ground. It normally reads open. If it reads anything but open (like
> 50kohms, or 500kohms), then the flyback is bad.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Fernand Goguen
> Sent: Wednesday, June 04, 2003 3:28 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Computer Monitor Schematics
>
> He said both monitors were dead.
> FERNAND GOGUEN
> GOGUEN TV SERVICE
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, June 03, 2003 11:14 PM
> Subject: [TechAssist] Re: Computer Monitor Schematics
>
>
> > What is wrong with the KDS?
> >
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Fernand Goguen
> > Sent: Tuesday, June 03, 2003 8:23 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Computer Monitor Schematics
> >
> > I am sending for a friend who has 2 monitor in for repair. One is a
> Dell
> > Model M780 same as Samsung CHC 7229. The other one is a KDS Model
> > KD-1731M. Any one have a PDF or know of a site where I could
download
> > these.
> > FERNAND GOGUEN
> > GOGUEN TV SERVICE
> >
>
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