M-Audio AV40 Dead Monitors Revival (capacitor replacement)
I was recently given a pair of dead M-Audio AV40 near field monitors. These little speakers are great! However, I was puzzled as to how exactly they had failed. After some googling I found that a few of the capacitors used on these have a tendency to go bad and leak. I decided to open up the case and sure enough: I found the capactior were bulging and had a chemical leak at the top. I removed the capactitors and ordered them from mouser.com as follows:
EEU-HD1E221
Panasonic Aluminum Electrolytic Capacitors - Leaded
US HTS:8532220040 ECCN:EAR99 COO:JP 2 2
RoHS: Compliant1
667-EEU-HD1V472
MFG Part No:EEU-HD1V472
EEU-HD1V472
Panasonic Aluminum Electrolytic Capacitors - Leaded
US HTS:8532220040 ECCN:EAR99 COO:JP 2 2
RoHS: Compliant1
688-SKHHAK
MFG Part No:SKHHAKA010
The board shows the charges +/- so this helps when installing the replacements.
I used a solder remover and even though the capacitors were glued, I was able to just pull/tilt them off once the solder had been completely removed.
The only problem I encountered with this fix is that a small circuit board that was glued to the inside of the case detached and I wasn't able to reattach it. Also, the amp heat sink might have been shorting with the speaker when I closed the case and tightened the screws. The problem became worse when I noticed that even without tightening the screws, the short would happen when I would apply pressure to plug in the power cable. To fix this I applied a small amount of silicon around the case where the screws go so that It would add some space so the the speaker wouldn't short with the heat sink.
Well that was that--now go out and revive some gear by replacing capacitors!
Comments
Cool! Glad it worked out
Cool! Glad it worked out
Hey, can I ask you a question
IDK, sorry!
IDK, sorry!
Late response but for the
Would these capacitors have
I highly doubt it
I highly doubt it
I had to replace these caps a
I have a set of AV40s and the
Pages
Add new comment