Maker Pro
Maker Pro

Mitsubishi CS-2611R Audio Hum & "Breathing"

C

CL

Jan 1, 1970
0
I have a Mitsubishi CS-2611R TV that has a low audio hum and the top
quarter of the picture "breathes". I suspect that it has one or more bad
electrolytics in the filter for the rectified line voltage. Since I
don't have a schematic, can anyone help me with the relevant reference
designators? I don't have the original remote, but the TV does not seem
to respond to a remote that I use with a Mitsubishi CK-2588R. Can anyone
confirm if these two TV have the same remote code? TIA.
 
N

NSM

Jan 1, 1970
0
| I have a Mitsubishi CS-2611R TV that has a low audio hum and the top
| quarter of the picture "breathes". I suspect that it has one or more bad
| electrolytics in the filter for the rectified line voltage....

Assuming it has a SMPS that hardly seems likely. Perhaps the SMPS has bad
regulation.

N
 
L

Leonard Caillouet

Jan 1, 1970
0
The relevant references would be any polar electrolytics with location
numbers starting with "C". Check them all for ESR and electrolyte leakage.
Also look for dried brown glue on the circuit board and clean it all off.

Leonard Caillouet
 
C

CL

Jan 1, 1970
0
Thanks for all the info. Yes, I know I should be looking for polar
electrolytics with C designations. Actually, I saw this exact set of
symptoms mentioned in the EURAS database index, but I don't have access to
that database. I was hoping that someone who did have access could provide
the repair hint. At least, I would like to have the C numbers (reference
designators) from a Sam's Photofact. My local library does not have them and
the nearest large library seems to be missing this particular folder.
 
Top