Question about Televison & Video
A missing voltage either in the power supply or one of the secondary voltages that come from the High Voltage area.
Posted on Dec 03, 2012
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Shrinking picture is a voltage regulation problem in the switch mode power supply, Possibly a cap used in the feedback circuit. Or an over current condition on the B+. This is a very tech intense repair because there is no magic bullet. If it is shrinking on bright scenes then you can bet it is a regulation problem, bright scenes draw more current from the power supply causing this effect. I would not suspect the horiz output because the regulation for this circuit usually comes from the main switch mode power supply. One diagnostic is to monitor the B+ going to the horizontal output and see if it fluctuates. If so you can bet it is a cap or optical coupler in the switch mode circuit.
Posted on Oct 10, 2009
Tips for a great answer:
Oct 28, 2014 | Televison & Video
Jul 06, 2014 | Mitsubishi WS-55313 55" Rear Projection...
May 06, 2011 | Hitachi L26D103 LCD TV
Sep 14, 2009 | Panasonic TC-32LX700 Television
Jan 19, 2009 | Televison & Video
Mar 15, 2008 | Televison & Video
Feb 13, 2008 | RCA Scenium D40W20 40" Rear Projection...
Sep 05, 2007 | Panasonic TC-14KM30R 14" TV
Jan 24, 2007 | RCA G36710 36" TV
47 people viewed this question
Usually answered in minutes!