[TechAssist] Re: MIT PTV VS-5007R
- From: Kevin <kevinstv@xxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 14 Oct 2002 21:28:12 -0700
Dang,
If I have a cathode to heater short in a directview TV, I isolate the
heater by winding an insulated wire around the flyback to induce the
heater voltage the same way the flyback normally creates the heater
voltage. I then connect the two ends to the heater input on the crt
board. You have to play with the gauge of wire and number of turns
around the flyback to get the proper voltage and brightness. 2 or 3
turns usually does it. This should work for a projection TV as well.
This would make an AC voltage but should work the same as a DC voltage
for powering the heater. I don't know if it would be beneficial to do
this for all three tubes and guarantee no cathode-heater shorts, or to
just isolate the one bad tube. Other members should know. HTH
Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevinstv@xxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of tomlee
Sent: Monday, October 14, 2002 8:09 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] MIT PTV VS-5007R
Hello members.
I am working with MIT VS-5007R PTV . red gun K short to heater .any body
know how to bypass this or anyway to fix this.Should I use crt short
remove? I have B&K470 but I do not have crt adapter .In the direct view
tv I can make isolator heater.But this is DC heater volatge with 3guns
in series connection.Any inputs
is appriciated.
DANG
TD electronics
18546 sherman way
reseda ca 91335
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