Aug 13, 2015, 5:43 PM
Post #10 of 22
Well, IF you took accurate readings, the board NOT producing 3.3 volts would mean that that board is definitely BAD.
Re: [Meraux] Sony KDL70R550A No Power
[In reply to]
Does that mean that replacing this board will fix the set? NO. It just means that to proceed further a known good board will have to be obtained and tried. At that point one of three things will occur:
1) New board will be blown (either arrives defective or fails once installed;
2) Pin #1 voltage will be present, but set will need further troubleshooting; or
3) Set will work normally.
You can now (with the set unplugged) put your DVM on a mid range (2K/20K decreasing to a lower range if necessary) ohm function and test each of the previous 5 points looking for shorts (any reading below 100 ohms, especially if you don't have to wait for the meter to stabilize).
Location: Far, Far Away
(This post was edited by jts1957 on Aug 13, 2015, 5:45 PM)