Question about Panasonic TX-42PT10 42" TV
Hi, Television died the other day most unexpected, Symptoms: 1. On switching on there was a high pitched squealling with a flickering screen then auto switch off after 10-20 sec.s standby light flashed three times. 2. On switching on now there is a clicking noise which lasts for 10 sec.s then shut down. no squealling noise or start up. looked at main fuse - ok looked at "P" board -seemed ok looked at "A" board- solder on R9611 thru R9615 seemed a bit rough but checked out with meter, Would really appreciate some direction on next course of action, Can you help regards jon
This sounds like a line timebase failure. The line timebase works at about 15 thousand cycles per second (15KHz) which may be audible to some people due to the iron-ferrite materials used (magnetostrictive). The line output transformer is highly stressed and also has the rectifier diodes in the outside if the windings. It is all very well insulated to guard against moisture and dust but if it breaks down due to the high voltages (25Kv) the arc produced makes this squealing noise, and of course it burns out, and breaks down. This may not blow the fuse if there is not a short circuit. So get an engineer if you are not sure about changing the line output transformer.
Posted on Oct 16, 2006
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Jul 11, 2012 | 1982 Yamaha XZ 550
Apr 06, 2012 | 2003 Yamaha FZS 1000 Fazer
Jul 25, 2011 | Televison & Video
Mar 02, 2010 | Protron PLTV-32 Television
Nov 24, 2009 | RCA P60920BL 60" Rear Projection...
Apr 02, 2009 | RCA P52921 52" Rear Projection Television
Aug 07, 2008 | RCA P52926 52" Rear Projection Television
Jan 27, 2008 | Mitsubishi VS-45605 50" Rear Projection...
Aug 21, 2007 | RCA F32665 32" TV
Aug 12, 2007 | RCA P52940 52" Rear Projection Television
Aug 15, 2018 | Samsung Televison & Video
137 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: