Question about Hitachi 57SWX20B 57" Rear Projection Television
It sounds as though you have what is referred to as a climental problem. In laymen terms, a transistor, chip or regulator is heating up and breaking down. The way a technician normally isolates this type of problem is by using a cooling agent ( freeze spray ). When the set heats up and the picture goes away, the technician sprays some of the cooling agent on a part of the board ( select a small area, about 6 inches square ) at a time and see if the picture comes back on. When you do finally get to the bad area, the picture should come back on for a short period of time until the bad part heats up again. After a period of time and by using the freeze spray, a person can isolate the exact bad part. Replace that bad part, and any filter capacitors hooked to that bad part and the set should work properly. As always, use caution and unplug the set before opening the set and when using the freeze spray, be sure not to touch any connections in the tv as they could produce shocks.
I hope this has helped and good luck on your problem.
Have a Great Presidents Day
Posted on Feb 18, 2008
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:
Aug 07, 2010 | Televison & Video
May 12, 2017 | Mitsubishi VS-5077/78 TV
Feb 24, 2009 | RCA 32V550T 32" TV
Dec 18, 2007 | Samsung HLN567W 56" Rear Projection HDTV
Mar 12, 2007 | Proscan PS27125 27" TV
May 16, 2006 | RCA MM32110 TV
Dec 31, 2012 | Hitachi 57SWX20B 57" Rear Projection...
85 people viewed this question
Usually answered in minutes!