Question about Proview Mh422su 42 in. EDTV-Ready Plasma Television
The fact that the set no longer allows you to turn it off indicates that the power supply for the power control circuit isn't supplying the voltage it should or none at all.
The service voltage for the circuit that provides IR (remote) control and probably any set-mounted controls as well, is the primary supply.
I believe the high voltage for the plasma display is working but the signal (video) input is scrambled due to a failure of an output (or more than one) of the primary supply that provides voltage to the video and audio sections.
Try following the instructions I have pasted below:
Unplug your set overnight to allow potentially hazardous voltages to discharge, remove the back panel of the set so you can see the guts.
Look for a smaller board with larger parts on it; some cylindrical (capacitors), others block-like and relatively large (chokes and transformers).
You should also see a relationship between the board and the incoming AC.
Check the board for a label or if not present, a stamped-on number.
Call the manufacturer's service center with your TV model number and the number found on that board and inquire about repair/replacement costs; if both are offered, they won't be that much different.
If you must buy a new board, don't dispose of the failed one as there are smaller companies that can repair it for less than the mfr. and then keep it as a spare as this problem will likely arise again.
Posted on Sep 07, 2009
Testimonial: "extremely helpful "
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
Tips for a great answer:
Feb 20, 2017 | Samsung UN55HU7250 Curved 55 Inch Ultra
Mar 29, 2014 | Zenith Z50PX2D 50 in. Plasma HDTV
Jun 29, 2013 | Televison & Video
Mar 07, 2011 | Proview PA-32JK1A 32 in. LCD Television
May 30, 2010 | Samsung HP-R5072 50 in. Plasma HDTV
Nov 17, 2009 | Proview PA40JK1A 40 in. LCD Television
Nov 13, 2009 | Proview PL926WBi 19" LCD Monitor
Aug 13, 2008 | Televison & Video
Jul 29, 2008 | Hitachi 42HDS69 42 in. Plasma Television
113 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: