[TechAssist] Re: Mitsubishi VS-5074 Has High Voltage, Filament, Hissing Audio, No Picture

  • From: "Shoreline Electronics" <jstielau@xxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 28 May 2003 20:16:13 -0400

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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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MITSUBISHI   VS5074

Video No Go - Has Sound And Hv  (Is Really No Vertical Sweep)

Tv Doctor - T.O., Ca

Bad Vertical Ic - La7838 & R510 - 1 Ohm Behind Flyback

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MITSUBISHI   VS5074

Video    No Vid; Q2h0 Open

From Mitsubishi

Over Current Condition Failure.  Apply Following Circuit Change To Correct.
On Foil Side Of Pcb-Signal,  Solder A 1s2471 Diode   Cathode To Base Of Q2h0
And Anode To Emitter.  Located On Pcb-Sign

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MITSUBISHI   VS5074

Video    No Raster

From Mitsubishi

Check For Open R509 (100 Ohm 1/2w) Res. Located On The G2-Pcb.

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==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@xxxxxxxx
==========================
"If you push something hard enough it will fall over."
Fudd's First Law of Opposition - Sir Sidney Fudd


----- Original Message -----
From: "Nova Service Center" <techassist@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, May 28, 2003 2:39 PM
Subject: [TechAssist] Mitsubishi VS-5074 Has High Voltage, Filament, Hissing
Audio, No Picture


> Hi everyone
> This big screen TV Model # VS - 5074 when plugged in you can hear a click.
Then when power button pushed you can hear more clicks . Power led stay on,
has high voltage, filament, hissing audio but no picture.The 3 picture tube
does not turn on at all. I checked all the boards for loose connection no
change.All the fuses checks ok. I have no service manual. Any suggestion or
history for this tv ? Any help would be appreciated.
> Thanks
> Nova
> 240-632-2994
>
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