[TechAssist] (TV) Panasonic CT-32G21U 32" Poor Regulation
- From: "Lynn C. Hedspeth, CET(r)" <HedTV@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 26 Sep 2002 08:50:05 -0400
Panasonic 32" Model CT-32G21U
Chassis: ALEDP276
I have a 32" Panasonic that will intermittently drop the 130vdc supply
to as low as 85vdc and pulse with the brightness of the picture.
Have replaced
IC801 (STK730-020) twice (Including OEM panasonic part number)
D807 7.5v zener
C809 electrolytic off the ref. input to IC801.
and checked just about everything else, including ringing the switching=
transformer.
It will regulate with a 60watt lamp subbed for the H/O load, but
will not start. I have to leave the lamp disconnected until
supply has started, then attach. With the lamp there is no change
in current needed so 130v stays constant. The set has no problem
starting with h/o connected. I guess because until CRT comes up the
current demand is low.
Anyone out there had this before, please shed some light.
Thanks for your time.
****************************************
Lynn C. Hedspeth, CET(r) NC-407
Hedspeth Enterprises Inc.
3521 E. Hwy 27
Lincolnton, NC 28092-7659
704-735-3532
413-828-0216 (fax)
HedTV@xxxxxxxxxxxxx
***************************************
------------------------------------------
To REMOVE your email address, click here:
http://www.tech-assist.org/unsubb.html
To CHANGE your email address, click here:
http://www.techassist.net/forms/change.html
------------------------------------------
***NEW*** Tips Added Instantly!!!***
Submit Repair Tips here:
http://www.tech-assist.org/secure/tip/
Other related posts:
