[TechAssist] Re: Toshiba TP4870B Projection TV Dead, chassis#?

  • From: Kevin <kevintv@xxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 19 Dec 2003 22:58:00 -0800

What is the CRT cba?

Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx 
 

-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff F
Sent: Friday, December 19, 2003 9:23 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Toshiba TP4870B Projection TV Dead, chassis#?

If you pull the yoke plug---just make sure to disconnect the CRT cba for
the
same tube at the same time.  That should prevent any burning of the
phospher.

TV Doctor
Avalon, Wi


----- Original Message ----- 
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, December 19, 2003 9:45 PM
Subject: [TechAssist] Re: Toshiba TP4870B Projection TV Dead, chassis#?


> I had a Toshiba that was 4 years old do the same thing.  The solution
> turned out to be the red yoke was shorted.  Ring the yokes to see if
one
> rings different from the others.  You can also use an ohm meter to
> measure the resistance of the windings.  I tested mine by pulling one
> yoke at a time and turning it on.    When I pulled the red yoke the
set
> stayed on.  I was told by another tech that pulling one yoke at a time
> could damage the set.  Try the first two methods first.  HTH
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jerry
> Sent: Friday, December 19, 2003 6:38 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Toshiba TP4870B Projection TV Dead, chassis#?
>
> Dead set. When this is plugged in, will come on for an instant with
high
> voltage and shut down. Standby supplies are there. Micro has power,
and
> key & remote input seems to be there.  I have no data for this set
> (about 10 years old) and don't want to have to order it for a set this
> old.  If anyone has lit. for this I could beg, borrow or can be
> uploaded, I would appreciate it or any tips for this set.  By the way,
> my job situation has changed so I haven't had time recently to get on
> here very much, I hope that will change soon.
> Jerry Eiting
> Christians Electronic Service
> Troy, Ohio
>
>
>
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