[TechAssist] Re: Computer Monitor Schematics
- From: <hartstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 5 Jun 2003 07:47:46 -0300
Found the problem!! Tryed a BU2508DF,that has the internal damper,the AF
does not.HOT runs cool & good pix.Should be able to get 50 bucks for
it............
Don of HARTS-TVCR-ASC
9 Robert St,Oromocto,NB,Canada,E2V3N2
Tel-506-357-9785,Fax-506-357-6010
hartstv@xxxxxxxxxxx
----- Original Message -----
From: <hartstv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, June 05, 2003 7:25 AM
Subject: [TechAssist] Re: Computer Monitor Schematics
> Kevin,Steve;I also have a SIDUS,Mod#Sid 1500N,probably the same chass.This
> was given to me & had the HOT missing.Can you tell me the # of it?I tryed
a
> BU2508AF which runs hot & sides of picture are bowed.This one may also
have
> a weak fly but would like to try the proper HOT before junking it.The
fcc#
> on this unit is EVOKD-1500N.It has the two 1 K resistors that Steve
> mentioned R637 & R638,but could not locate L401 or Q407 that Kevin
> replaced.....TIA.........
> Don of HARTS-TVCR-ASC
> 9 Robert St,Oromocto,NB,Canada,E2V3N2
> Tel-506-357-9785,Fax-506-357-6010
> hartstv@xxxxxxxxxxx
>
>
>
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, June 04, 2003 10:44 PM
> Subject: [TechAssist] Re: Computer Monitor Schematics
>
>
> > 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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