[TechAssist] Re: Mitsubishi vs4007r , still no video

From: Jim Shupe <jim@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx
Date: Tue, 10 Feb 2004 13:46:31 -0800 (PST)
try leaving the set on in a warm area for several
hours...if the pix starts to show, you've got bad
caps. You can try heating it up with a hair drier
also.

  I had one of these with about 20 bad caps in the
video.
Jim Shupe, C.E.T. Ca 1438
Yucca Valley, Ca


--- larry <schntv@xxxxxxxxxxxx> wrote:
> well, i am still working on this one.
> now i find i do have sound.
> it was in some other mode, and now the sound is ok ,
> but still
> no pix or on screen.
> just faint raster
> the video output transistors are biased off, 200 v
> on
> collectors and no voltage on B or E.
> more clue s please!
> Thank you,
> Larry
> 
> 
> Intrepid Video Support wrote:
> > 
> > >From Tech Repair CD:
> > MITSUBISHI\VS4007R\No Video All Inputs\Missing
> Video At Pin 1 Of Ic7602\\\Confirm 1vpp Tuner Video
> At Pin
> > 4 And 5vdc At Pins 2 And 3.  Pcb-Signal   Part
> #272p394010\\\\\\\\
> > 
> > MITSUBISHI\VS4007R\No Video/Hv Ok\\\\Check Screen
> Supply Resistor R511 For Open. Located On Pcb-Main
> Off
> > Fbt Pin 1. (100 Ohm 1/2w Fusible)  Pt #
> 103p39103\\\\\\\\
> > 
> > Jeff Dougherty
> > Intrepid Video TV/VCR
> > 263 S Front St
> > Steelton PA 17113
> > fax...717-564-4952
> > www.intrepid-video.com www.tech-repair.net
> > 
> > ----- Original Message -----
> > From: "larry" <schntv@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, February 07, 2004 3:31 PM
> > Subject: [TechAssist] Re: Mitsubishi vs4007r ,
> still no video
> > 
> > NO, no on screen or video from inputs.
> > sound is ok
> > and full sweep of gray screen when screen control
> is turned
> > up.
> > Thank you,
> > Larry
> > 
> > Intrepid Video Support wrote:
> > >
> > > Larry,
> > > You need to tell us if you have OSD or anything
> from the inputs
> > >
> > > Jeff Dougherty
> > > Intrepid Video TV/VCR
> > > 263 S Front St
> > > Steelton PA 17113
> > > fax...717-564-4952
> > > www.intrepid-video.com www.tech-repair.net
> > >
> > > ----- Original Message -----
> > > From: "larry" <schntv@xxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, February 06, 2004 3:41 PM
> > > Subject: [TechAssist] Mitsubishi vs4007r , still
> no video
> > >
> > > i ordered and received a schematic, and now have
> vertical
> > > sweep, after replacing 3 caps, IC and resistor.
> > > but still no sound or video.
> > > if i turn up the green screen, i get green
> sweep, power supply
> > > seems to be giving all the outputs, ok.
> > > any help appreciated,
> > > Larry
> > >
> > > --
> > > Schneider TV & Electronic Inc.
> > > 5415 N. Wooster ave.
> > > Dover, Ohio 44622      
> www.geocities.com/schntv2000/
> > > 330-343-0768         FCC. first class & Extra
> class K8WLY
> > >
>
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> > --
> > Schneider TV & Electronic Inc.
> > 5415 N. Wooster ave.
> > Dover, Ohio 44622      
> www.geocities.com/schntv2000/
> > 330-343-0768         FCC. first class & Extra
> class K8WLY
> >
>
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> -- 
> Schneider TV & Electronic Inc.
> 5415 N. Wooster ave.
> Dover, Ohio 44622      
> www.geocities.com/schntv2000/
> 330-343-0768         FCC. first class & Extra class
> K8WLY
> 
>
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References:
- [TechAssist] Re: Mitsubishi vs4007r , still no video
  - From: larry
[TechAssist] Re: Mitsubishi vs4007r , still no video

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