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Old 09-11-2010, 08:09 PM   #9
firespace
New Member
 
Join Date: Aug 2010
Posts: 18
Default Re: Repairing Alesis M1 Active mk2 Monitor Speakers

Ok so a whole lot of squinting with a flash light later here are all the caps (with details) for both boards on the active electronics of 1 monitor.


On the power supply board-

2x JunFu - Width 22mm Hight 35mm Dark Blue
390 F
200V
HK105˚C
0304

2x Su'scon - Width 13mm Hight 20mm Brown
390 F
50V
SD105˚C
0319 (V)


5x JunFu - Width 8mm Hight 19mm Green
220 F
35 V
WG105˚C
0304


2x JunFu - Width 8mm Hight 16mm Dark Blue
82 F
63 V
WG105˚C
0304


1x JunFu - Width 5mm Hight 11mm Dark Blue
1 F
50 V
HK105˚C
0306



On the amplifier board-

3x JunFu - Width 8mm Hight 12mm Black
100 F
50 V
RB85˚C
0304


2x JunFu - Width 8mm Hight 12mm Black
100 F
50 V
RB85˚C
0301


8x JunFu - Width 8mm Hight 11mm Black
10 F
63 V
RM85˚C
0304

Thanks for all the help so far, I hope some kind expert can give me a full list of order numbers for new capacitors that are better replacements, and a short equipment list of all the tools I shall need to do a good job would be very much appreciated.

The main issue with these Monitors seems to be the power supply section has a few of the green caps that dry up because of a board design error that places one of them too close to a resistor (see the photos in my first post), so perhaps some improved capacitors with the same capacitance but higher ˚C rating might be wise for those green caps?

I have included exactly what is written on the caps, and given dimensions and even colour too for what it's worth.

I don't think I left anything out but it was tuff reading all the details due to the angle some capacitors were soldered on at.
But if any details are missing or look way out of whack please let me know and I will triple check it.

Much thanks,

Joe.

Last edited by firespace; 09-11-2010 at 08:19 PM..
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