Question about Cambridge Soundworks BassCube 12 Speaker
I have solved my issue with the basscube 12s - I found a bad zener diode that regulated the voltage
to one of the amplifiers power supplies. It was caused by a cold solder joint during manufacturing of the
circuit board. The amp is located behind the heatsink on the back of the cabinet. This symptom could
be caused by any of the components in the power supply circuits. Hope this helps!
Posted on Feb 26, 2009
Hey! So i fixed my problem! This is for the BassCube 10
Like i said before i saw that the circut board was burnt near the diodes ZD3 & ZD4, and the resistor R63. Thanks to Deadly1 and BillRad62, i figured it out. The R63 is a 1200 resistor, and the diodes are 15v zeners. I went with 3x 5.1v zeners to replace ZD3, unfortunately Rip-Off-Shack (Radioshack) didnt have 3 packs of these so for the ZD4 i put a 12v and 5.1v. Which exceeds 15, but seems to work without a problem. Hope it helps!
Posted on May 26, 2009
Hi Ok thanks. I cannot be 100 % sure about this without seeing it but it sounds alot like there is a power supply issue, either bridge rec or caps. Caps are very often very obvious. If you get into it and have a look at what is normally the 2 or 4 biggest capacitors at the start/power supply of the board and see if they are ok visibily. If they are bulged, (often they actually explode and leave paper residue) then those are what need to be replaced. Have a look and see.
If its the bridge rec, it could be 4 diodes, fairly large next to each other or a square component with 4 legs out. Need a meter to test, but i would start at caps first
All the best
Posted on Aug 05, 2009
SOURCE: How can I replace a
Its pretty simple actually.
If you already have the same size new tweeter. You take off of course the large felt cover so speakers are exposed on front. Just like your picture is in this post. Then you should see some screws, most likely it is going to be Phillips. Then unscrew all the screws, the whole front should slide out with of course speakers still attached, don't pull out to fast or far, to make sure the internal wires are long enough to take whole front out and set aside speaker box, the on back of speaker should be two wires going to it, maybe three if is tapped in conjunction with a ground. Anyway on back of speaker unplug the wire from speaker and then, take out screws which is normally on back of speaker, pull speaker out, put new one in and repeat steps in reverse order. Hope this helps. Mike
Posted on Jul 07, 2011
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