[TechAssist] Re: Sony PTV KP53HS10 intermittent loss of green crt and brite red raster
- From: larry <schntv@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 17 Jan 2003 09:55:17 -0500
In 35 years of repair, I have been shocked many times, the
trick is , keep one hand behind your back when in a dangerous
area.
I have been hurt worse from the 110 v. AC than from the
flyback.
as for hi amperage, it will make a horrible spark that can
burn you even if you are not shocked.
I believe amperage is like water, which is more dangerous?? 10
feet or 1000 feet deep swimming area.
BCNU,
Larry
"Bob@Bobs tv" wrote:
>
> Long time ago, Zenith used a 4 lead cap for HV hold down, don't think they
> planed on the cap failing. I was working on a stock console, I had the crt
> socket unplugged to see where the sizzling was. Kneeling down I plugged the
> set in and the crt socket arced to my forehead.. I dropped over like a
> bowling pin.. Well the HV exceeded 50k and cracked neck on tube. "Man i
> have not been right since" (:-)
> Bob,
>
> Bobs TV Worcester, ma
>
> woodman1@xxxxxxxx
>
> Main 508-853-1482
> Fax 508-853-1480
> ----- Original Message -----
> From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, January 17, 2003 9:13 AM
> Subject: [TechAssist] Re: Sony PTV KP53HS10 intermittent loss of green crt
> and brite red raster
>
> >
> > Man,
> > I remember about 9 years ago when I took that screwdriver to make an
> > adjustment on the deflection board of a unit that a previous servicer had
> > spliced the twin anodes together and sealed them with silicone but
> obviously
> > didn't do a great job because when she arced over to the screwdriver, I
> went
> > from a sitting position to completely horizontal in world record time. The
> > screwdriver became lodged in the wall behind me as it had transformed into
> a
> > projectile. I guess the good thing of it was that I think I will NEVER
> need
> > viagra! But if you think thats horrifying, when I was a Sonar Technician
> in
> > the Navy, we had a transmitting system that was at 80 volts (No big deal,
> > right?) but it was at 3000 amps for about 240,000 acoustic watts! No there
> > is one I would never get a second chance with.
> >
> > Bob Waterman, CET® #RI-28
> > Master Technician License #9109
> > Service Manager
> > Gemini Computer, TV, & Security Alarms
> > (508)695-7302
> > (508)695-7769 FAX
> > geminitv@xxxxxxxxxxxxxxxx
> > geminitv@xxxxxxx
> >
> > ----- Original Message -----
> > From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Friday, January 17, 2003 8:39 AM
> > Subject: [TechAssist] Re: Sony PTV KP53HS10 intermittent loss of green crt
> > and brite red raster
> >
> >
> > >
> > > Yup...and always keep the other hand in your pocket. Waving a
> screwdriver
> > is
> > > like rattling the bears cage. Have a healthy respect for that one,
> notice
> > > the lead is ALWAYS red..;-)
> > >
> > > -Ed-
> > > Tel-Tek Electronics
> > > Ontario-Canada
> > > "If Apple and Microsoft can talk...why can't the rest of the World?"
> > >
> > > teltek2@xxxxxxxxxxxx
> > > ----- Original Message -----
> > > From: "Shoreline Electronics" <jstielau@xxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, January 17, 2003 8:09 AM
> > > Subject: [TechAssist] Re: Sony PTV KP53HS10 intermittent loss of green
> crt
> > > and brite red raster
> > >
> > >
> > > >
> > > > WOW ! Your waving a screw drive to see if it will arc! WOW!
> > > >
> > > > I take you have never been zapped by the 2nd anode ! Let me tell you
> > > > ...your fingers & arm will go numb!
> > > >
> > > >
> > > > Been there , done that ! Only ONCE! And never again! I saw stars!
> > > >
> > > >
> > > > I would use a HV probe in the future to try what you are attempting
> > > >
> > > >
> > > > ==========================
> > > > Jeff Stielau
> > > > Shoreline Electronics Repair
> > > > 125 Beech Tree Lane
> > > > Westbrook, CT 06498
> > > > 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: <tvservice@xxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Thursday, January 16, 2003 2:41 PM
> > > > Subject: [TechAssist] Re: Sony PTV KP53HS10 intermittent loss of green
> > crt
> > > > and brite red raster
> > > >
> > > >
> > > > >
> > > > > Bob or anyone on group,
> > > > > I readjusted G2 controls, that has stopped the green from blanking
> out
> > > and
> > > > > the red from getting bright. I hear aloud pop as if the anode leads
> > may
> > > be
> > > > > arcing but can't find, tried waving my screwdriver near anode boots
> > and
> > > > > around flyback but wouldn't arc only pops maybe 2-3 times in a day.
> > > > > Could this still be G2/focus control block?
> > > > > Also I have jail bar lines on the left, suspect cap on B+ to Hor
> > output.
> > > > > Would you agree?
> > > > > Robert
> > > > > tvservice@xxxxxxxxxxxxx
> > > > > H & H Electronics Inc
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Wednesday, January 08, 2003 12:58 PM
> > > > > Subject: [TechAssist] Re: Sony PTV KP53HS10 intermittent loss of
> green
> > > crt
> > > > > and brite red raster
> > > > >
> > > > >
> > > > > >
> > > > > > That sounds like it may be a defective focus/screen block. I do
> lots
> > > of
> > > > > Sony
> > > > > > and have replaced a few but not for that exact symptom.
> > > > > >
> > > > > > Bob Waterman, CET® #RI-28
> > > > > > Master Technician License #9109
> > > > > > Service Manager
> > > > > > Gemini Computer, TV, & Security Alarms
> > > > > > (508)695-7302
> > > > > > (508)695-7769 FAX
> > > > > > geminitv@xxxxxxxxxxxxxxxx
> > > > > > geminitv@xxxxxxx
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "tvservice" <tvservice@xxxxxxxxxxxxxxxxxxx>
> > > > > > To: "Tech-Assist" <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Wednesday, January 08, 2003 11:05 AM
> > > > > > Subject: [TechAssist] Sony PTV KP53HS10 intermittent loss of green
> > crt
> > > > and
> > > > > > brite red raster
> > > > > >
> > > > > >
> > > > > > >
> > > > > > > Any sony experts on list,
> > > > > > > picked up this unit on call yesterday, no schematic, unfamiliar
> > with
> > > > > Sony
> > > > > > > PTV.
> > > > > > > After on @ 10 minutes loses green raster filimants OK, +185 volt
> > on
> > > > > > cathode
> > > > > > > while this tube is out red will intermittently get very brite
> can
> > > see
> > > > > > faint
> > > > > > > video in background. Green will intermittently flash back on for
> > 3-4
> > > > > times
> > > > > > > at1 second intervals same time red will go normal.
> > > > > > > does not appear to be loose connections.
> > > > > > > Is this gonna be a dog!!
> > > > > > > any knowledgable help appreciated.
> > > > > > > Robert
> > > > > > > tvservice@xxxxxxxxxxxxxxxxxxx
> > > > > > > H & H Electronics Inc
> > > > > > >
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--
Schneider TV & Electronic Inc.
5415 N. Wooster ave.
Dover, Ohio 44622 www.geocities.com/schntv2000/
330-343-0768 FCC. first class & Extra class K8WLY
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