[TechAssist] Re: Sony KV32s15 immediate shutdown and no Remote
- From: peggs <peggs@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx, <techassist@xxxxxxxxxxxxx>
- Date: Mon, 22 Nov 2004 18:23:33 -0800
This set uses a TDA8172 as the Vertical output.
The diode and Resistors you mention sound like vertical B+ components.
The B+ AND B- are on the Vertical output.
thanks
Peggs
At 03:26 PM 11/22/04, tvman@xxxxxxxxxxxxxxx wrote:
>Peggs this may help you Eric
>vertical height failed-- then smoked-- now squeels and shuts down R550=.47;
>R549=.47; IC502=STV9379; D501=ERC06-15
>E M Electronics
>Deer Lake NL
>Canada
>tvman@xxxxxxxxxxxxxxx
>eric.manuel@xxxxxxxxx
>----- Original Message -----
>From: "peggs" <peggs@xxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Monday, November 22, 2004 9:05 PM
>Subject: [TechAssist] Sony KV32s15 immediate shutdown and no Remote
>
>
> > Remote inop.
> > Immediate Shutdown at Power On(Power Switch).
> > Relay clicks on and right back off instantly.Power Light blinks
>once(quickly).
> > Power Supply and HOTransistor are fine.
> > In fact when I jump the PS Relay(to keep set on),all voltages are
>fine(best
> > I can tell...)
> > High Voltage is OK,but Remote is STILL inop and
> > there is No Vertical Deflection,yet B+ and B- on Vertical Output are
> > there(haven't Scoped for V Drive yet).
> > Flat Horizontal Line is slightly above Screen Center.Vertical output is a
> > TDA8172(which I don't have in Stock).
> > Also,with the relay jumped, Pressing the Power Switch still results in the
> > Relay on-off quickly.
> > I've replaced the Protect Module(PM501), and removed the Audio and
>Vertical
> > Outputs to see if they were causing the Shutdown.
> >
> > I'm puzzled by the lack of Remote AND Vertical Deflection.Customer said
> > Remote worked fine before set Died.
> > I've been huntin'-and-peckin' on the M board,which has a CXA1465as(Jungle
> > IC),and the Micro(I think).
> >
> > Anyone have any tips on troubleshooting this symptom/ M module ???
> >
> > Peggs
> > Peggs' Electronics
> > 1519 West 2nd Street
> > Owensboro,KY 42301
> > 270-926-4968
> > fax 270-686-7399
> > peggs@xxxxxxxxxxxxx
> >
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