[TechAssist] Re: ZENITH TV SY2788DT3 has sound but no picture
- From: <jose.aviles7@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 28 Apr 2003 16:57:37 -0700
Mark
Did you check Q5104 for emitter to collector for short. If is ok then check
your tuner at pin 7 for 5V, 9 for 33V 6 for 9V and clock and data at pin4
and 5. Hope this help.
Jose
Aviles Computer & TV Repairs
508 Bingaman St
Reading, PA
Fax # 1-610-375-3766
----- Original Message -----
From: <ElectronicRepair@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, April 28, 2003 11:02 AM
Subject: [TechAssist] Re: ZENITH TV SY2788DT3 has sound but no picture
> I already check those resistors, they are OK, thats the first thing I
checked
>
>
>
> At 10:20 AM 4/26/03, you wrote:
>
> >Please, please...place model in the subject line. It makes it a lot
easier
> >when one is searching the archives for help.
> > From Tech Repair CD:
> >Zenith\SY2788DT\No picture\\\9-1677-01\Check R3234 & R3219 on deflection
> >board\\\\\\\\
> >
> >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: <ElectronicRepair@xxxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Friday, April 25, 2003 5:02 PM
> >Subject: [TechAssist] ZENITH TV has sound but no picture
> >
> >
> >I have this Zenith TV, model # SY2788DT3, the main module is a 9-1677-01
> >and the SMPS module is a 9-1757, that came in for repairs, it has sound
but
> >no picture or OSD, checked the screen voltage and its normal, I turned up
> >the screen and it has a full screen, checked the drivers transistors on
the
> >video board and the collectors are around 200 to 225 volts.
> >Have no print and I like to repair it instead of changing the module.
> >Any help would be great.
> >
> >
> >Thank you, Mark
> >Electronic Repair Services
> >48 W. James St.
> >Lancaster, PA 17603
> >Phone 717-393-5115
> >FAX 717-393-5115
> >
>
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> Thank you, Mark
> Electronic Repair Services
> 48 W. James St.
> Lancaster, PA 17603
> Phone 717-393-5115
> FAX 717-393-5115
>
>
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