[TechAssist] Re: Panasonic LCD model PT-50LC13

The Toshiba Lamp problem had the same symptoms. Just a flashing power light.
    I guess at the price of these lamps, we can't afford to guess..

-Ed-
E. Gaidies
Tel-Tek Electronics
Ontario-Canada
teltek3@xxxxxxxxxxxx
----- Original Message -----
From: "peggs" <peggs@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 21, 2006 12:09 PM
Subject: [TechAssist] Re: Panasonic LCD model PT-50LC13


> So can the Voltage BE measured ???
> Maybe at the Ballast PCB,with the Lamp installed ???
> I'm getting no 'sounds of start-up' from the PCB at all.....
>
> Peggs
>
>
>
> At 12:46 PM 2/20/06, J Silverman wrote:
> >Its an arc lamp so it is not supposed to "measure". An interlock prevents
> >you from accessing the kilovolt arc strike and hundreds of high frequency
AC
> >operating volts. The lamp life varies from one lamp type to another, but
> >4000 hours is probably a reasonable life to expect. The life is shortened
by
> >frequent restarts. Panasonic had a ballast mod kit to reduce the strike
> >voltage, which was causing a reduction in lamp life, for certain models
and
> >serial numbers. Some brands have no ballast problems but some brands have
a
> >lot. One servicer that services a lot of LCD and DLP projectors says that
> >they always take a ballast along JIC.
> >Jerry Silverman
> >Greentron Inc
> >4 Newland Ave
> >Greenville SC 29609
> >Fax/Phone 864 232 3889
> >mail to: greentron@xxxxxxx
> >----- Original Message -----
> >From: "peggs" <peggs@xxxxxxxxxxxxx>
> >To: <techassist@xxxxxxxxxxxxx>
> >Sent: Monday, February 20, 2006 4:39 PM
> >Subject: [TechAssist] Panasonic LCD model PT-50LC13
> >
> >
> > > My first large screen LCD TV Repair,so excuse the obvious questions.
> > > I've repaired a few Flat panel monitors,and one small 23" flat panel
> > > Televison,but this one is new ground for me.
> > >
> > > Customer is not happy...... he's replaced the Lamp himself once(a few
days
> > > out of warranty), that one lasted about a year and his TV is not
working
> > > again(same symptom).
> > >
> > > At Power On,Power Light goes from Red to Green momentarily,then to
Orange
> > > with 2 quick blinks.....pause....2 quick blinks(and so on).
> > > Lamp measures open(that is by normal 'projector' bulb
standards),that's my
> > > first question,How should these Lamps measure ???
> > > But, I also have no Voltage on the Lamp's Connector........ which begs
my
> > > 2nd question,What Voltage should I measure for the Lamp ???
> > >
> > > Looks like a Lamp and Ballast(board) Repair(man,these things are
> > > expensive),but I thought I better get some input first.
> > > WinStips seems to agree,but in there I see a KIT (LSUC0022) for the
> >Ballast
> > > PCB Repair.
> > > Anybody installed one of these Kits ???
> > >
> > > Peggs
> > > Peggs' Electronics
> > > 1519 West 2nd Street
> > > Owensboro,KY 42301
> > > 270-926-4968
> > > fax 270-686-7399
> > > peggs@xxxxxxxxxxxxx
> > >
> >
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