[TechAssist] Re: Mitsubishi vs4007r , still no video

  • From: larry <schntv@xxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 10 Feb 2004 12:29:23 -0500

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
> -----------------------------------------------------------------------------
> Jokes, complaints, off topics, general chat. Everything other than repair
> help problems can be found at this new list. No archives and posts will not
> be found on Google or any other engine!To remove or join, click:
> mailto:ecartis@xxxxxxxxxxxxxxx?subject=subscribe%20chat
> Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
> -----------------------------------------------------------------------------
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> -----------------------------------------------------------------------------
> Jokes, complaints, off topics, general chat. Everything other than repair
> help problems can be found at this new list. No archives and posts will not
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> Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
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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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