[TechAssist] Re: MITSUBISHI PROJ TV MDL: VS-5051 / NO VIDEO
- From: "teltek2" <teltek2@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 28 Dec 2002 11:19:07 -0500
Check For 2vdc At Pin 4 Ic401,If Missing Check For 34vdc At Pin 6 And 3
Lso Check For .8vpp Pulse At Pin 5, If All Are Present Check 14v R
Cut and Pasted from Winstips.
-Ed-
Tel-Tek Electronics
Ontario-Canada
teltek2@xxxxxxxxxxxx
----- Original Message -----
From: "teltek2" <teltek2@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, December 28, 2002 11:10 AM
Subject: [TechAssist] Re: MITSUBISHI PROJ TV MDL: VS-5051 / NO VIDEO
>
> Are you sure the IC is suppose to be LA7845?
>
> -Ed-
> Tel-Tek Electronics
> Ontario-Canada
>
> teltek2@xxxxxxxxxxxx
> ----- Original Message -----
> From: <fremur01@xxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, December 28, 2002 10:49 AM
> Subject: [TechAssist] Re: MITSUBISHI PROJ TV MDL: VS-5051 / NO VIDEO
>
>
> >
> > Hello,
> >
> > This one is still being a problem.
> >
> > I replaced IC401 (LA7845) along with adjoining
> > caps in the circuit and it still has no video. Crt
> > filaments and HV are fine. I tried inspecting the yoke
> > connectors as well.
> >
> > Anyway, does anyone with service literature know the
> > correct Vcc voltages on the IC I should look for in
> > the vertical circuit? This is an awkward pc board
> > so measurements should be fun.
> >
> > Thanks
> >
> > Item specs: MITSUBISHI PROJ TV MDL: VS-5051
> >
> > Fred
> > MTS Electronics
> > Fayetteville, NC
> > fremur01@xxxxxxxxx
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of
> > Gooseman
> > Sent: Wednesday, December 11, 2002 9:20 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] Re: MITSUBISHI PROJ TV MDL:
> > VS-5051 / NO VIDEO
> >
> >
> >
> > Look at ic401 for loose connection or the yokes.you
> > can wiggle the youe
> > plugs and usually find the 1 with the loose
> > connection.
> > Beyond that you may have a bad vertical IC.
> > Tvman99@xxxxxxx
> >
> >
> > -----Original Message-----
> > From: techassist-bounce@xxxxxxxxxxxxx
> > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of
> > fremur01@xxxxxxxxx
> > Sent: Wednesday, December 11, 2002 4:36 PM
> > To: techassist@xxxxxxxxxxxxx
> > Subject: [TechAssist] MITSUBISHI PROJ TV MDL: VS-5051
> > / NO VIDEO
> >
> >
> > Hello,
> >
> > Went on a call today for the following: Set has good
> > audio but no picture. I noticed all CRT filaments
> > light up along with H/V buildup. One Tech had
> > mentioned that some of these sets can have problems
> > with the PIP module.
> >
> > Anyway, I was limited as to what could be done on
> > site, and will take set back to shop later this week.
> >
> > I dont have service literature for this one. Nothing
> > looked burnt on the PIP module. Anyone know of case
> > history info for this model?
> >
> > Thanks
> >
> > Fred
> > MTS Electronics
> > Fayetteville, NC
> > fremur01@xxxxxxxxx
> >
> >
> > Item specs: MITSUBISHI PROJ TV MDL: VS-5051
> >
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