[TechAssist] Re: Panasonic CT-32HX40B, Chassis DX2/AP346 Int High Voltage, Video Problem

Thanks Jeff, we have already installed the kit and all three IC's, and
things seem to have gotten worse. The horizontal failing to start up is =
more
consistent now than before.

Art Bevilacqua
Essex Radio and TV
40 Main Street
Essex, MA 01929


-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Dougherty
Sent: Sunday, August 31, 2003 10:36 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Panasonic CT-32HX40B, Chassis DX2/AP346 Int =
High
Voltage, Video Problem

Art,
>From Tech Repair CD:
PAN\CT32HX40B\Turn the TV ON - only blue raster with retrace lines and =
then
TV shuts OFF.\\\\Located failure with the blue video driver\ one of the
three IC=92c on the picture tube CRT - generic # TDA 6111Q. The part was
ordered and replaced\and the customer placed a call again after 5 days. =
The
same IC was blown again - there was a physical damage on the body of the
IC.\1. Do not replace the IC if such a problem is located.\2. Order part =
#
TXANV20BSER - this is a kit\ containing 1 IC and some othe\3. Order
additional 2 PCS IC=92s TDA 6111Q\ and replace all 3 of them.\4. This =
service
bulletin is no
--
Jeff
=A0
Intrepid Video TV/VCR Repair
263 S Front St
Steelton PA 17113
Fax: 717 564  495 2
www.intrepid-video.com www.tech-repair.net
=A0

On Sat, 30 Aug 2003 22:02:00 -0400, art bevilacqua,
=A0abevilac@xxxxxxxxxxxxx wrote:
Initially, the screen would intermittently go completely green. While
troubleshooting, we noticed that sometimes the high voltage would not =
=3D
come
up (when the set is powered on, there are a number of relays that click, =
=3D
and
finally high voltage (and Flyback secondary voltages) come up. Thinking =
=3D
that
the video problem, which involves an update kit and causes shutdown, =3D
might
be causing the loss of high voltage, we ignored it for the moment.

We ordered and installed the fix for the video drive chips being =3D
damaged,
but now the high voltage never comes up (unless I'm measuring for =3D
voltage in
the horiz supply area and then sometimes it will fire up when I touch a
certain test point). Once this happens, it will come on a few times and =
=3D
then
die again. Pulling the CRT socket doesn't help.

When the set does come on, we have a picture for about a minute, then =
=3D
the
picture fades to a dull grey screen with retrace lines. It never did =3D
this
before, so I plan to swap out the new video drivers one at a time, but =
=3D
does
anyone have any knowledge about the intermittent horiz output?

Thanks, art

Art Bevilacqua
Essex Radio and TV
40 Main Street
Essex, MA 01929




*************************************************************************=
***
*
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org =A0and select "Lost your Login Info?".
Email Archives:
http://www.freelists.org/archives/techassist/



*************************************************************************=
***
*
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org  and select "Lost your Login Info?".
Email Archives:
http://www.freelists.org/archives/techassist/


*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org  and select "Lost your Login Info?".
Email Archives:
http://www.freelists.org/archives/techassist/

Other related posts: