[TechAssist] Re: samsung k50mvro3 chassis shorting output transistor

  • From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Tue, 17 Feb 2004 21:40:34 -0400

Alvin;Couple of questions.
What is your reg. B+.It should be 125vdc.Did you replace HOT with a 2SD1650
& did you check caps C407,C408 & C415 off the collector of HOT.Also make
sure R809=680 ohm & R812=15 Kohm,have not changed
value...........................
Don of HARTS-TVCR''ASC''
9 Robert St,Oromocto,NB,Can,E2V3N2
hartstv@xxxxxxxxxxx
Tel-5063579785,fax-3576010
cel-4701719
----- Original Message ----- 
From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 17, 2004 8:54 PM
Subject: [TechAssist] Re: samsung k50mvro3 chassis shorting output
transistor


> Hi Bob
> the model number is MVR2100C
> Alvin
> Gemini Computer & TV wrote:
>
> >What is the model number (not the chassis number)?
> >
> >Bob Waterman, CET® #RI-28
> >Master Technician License #9109
> >Service Manager / Parts Manager
> >Gemini Computer, TV, & Security Alarms
> >(508)695-7302
> >(508)695-7769 FAX
> >geminitv@xxxxxxxxxxxxxxxx
> >geminitv@xxxxxxx
> >www.geminicomputertvsecurityalarms.com
> >
> >
> >----- Original Message ----- 
> >From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Tuesday, February 17, 2004 5:54 PM
> >Subject: [TechAssist] samsung k50mvro3 chassis shorting output transistor
> >
> >
> >
> >
> >>Hi Guys
> >>We have a Samsung K50mvr03 which is a 14 inch tv-vcr combo
> >>Unit  had a shorted output transistor..Replaced it and the
> >>1 ohm fused resistor  also the flyback transformer..Set ran
> >>for a short time and then shorted transistor again..Checked the
> >>yoke for arcing  nothing noted  do not have a pdf of this unit
> >>any suggestions or help would be appreciated.
> >>Alvin Rose
> >>Radio & Tv Centre
> >>Marystown, Nfld
> >>
> >>
> >>
>
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