I found a cheap exact replacement volume control on eBay and it solved my problem! Now I think I have a bigger problem. Wow, almost TWO years later and I'm back to follow-up. Originally Posted by brandtlj /t/1064801/cambridge-soundworks-volume-control-issues#post_19349273 Try this fix first, as it is no cost and will probably work. Interestingly, these photos show the wires disconnected entirely! If you do this fix and it does not work, then you may have a bad volume control potentiometer or perhaps something is faulty in the subwoofer unit. Look at the top post in this thread for photos of the inside of the volume control unit to see the small pcb, potentiometer, and four colored telephone type wires. I performed this operation and now my unit works great! No erratic volume issues and no static. These wires connect to the 45.7 Kohm potentiometer (variable resistor) which sets the correct voltage in the Megaworks 210D subwoofer unit. And finally, solder the BLACK wire on the outermost trace (with one hole). Then solder the RED wire to the center trace (with one hole only). Clean and solder the four wires back on in this order: YELLOW and GREEN on the wide trace (which has TWO holes - the order does not matter since both are electrically connected). If one or more of these wires are disconnected, then the volume control will function unpredictably. Take the unit apart (slide the knob portion away from the body) and observe the pcb board which has four holes where the telephone wires attach. Here is my solution which will probably correct most situations: First, if the volume control knob is used every day in a hand-held mode, this will stress the four wires inside the unit which will eventually fail and disconnect from the small printed circuit card inside. I was searching here as well since my system developed the same symptoms (erratic volume control, changing volume without touching the knob, non-stable volume, and occasional static). Is there anybody who may be able to walk me through a repair? I am very trainable and it may help others with this issue as it seems to be relatively common. I'm still very happy with the sound quality and it meets all my needs except for the buzzing. CS wants $75 for the repair including round-trip shipping, but that's a lot of money for a 10 y/o system. I don't believe it's ground loop because there is no ground pin on the amp.įrom what I read it may be a capacitor or zeners gone bad (whatever that is), but I'm not sure. Then I tried moving the system to other rooms in the house in hoping that it may be a wiring issue in the wall - still there. At first I thought it was signal interference so I unplugged the line input - still there. volume control for front and rear levels. Although the unit still produces nice sound which covers up the buzzing, when idle, it drives me nuts. Mate your favorite front/rear soundcard's outputs with Cambridge SoundWorks. This started about a month ago and has really started to irritate me. I'm getting hissing/buzzing noise through my speakers and a light hum coming from my sub. I also tried a brand new cable with those 4 wires to rule out a break in the cable in the wall.Wow, almost TWO years later and I'm back to follow-up. I confirmed that I am using a 4 connected cable with the red, green, yellow and black wires. This is probably why no signal can be heard out of the P1000. Most standard telephone cables are two conductor. The P1000 and the control module's original interface cable uses all four conductors to work. I pinged CSW support to find out if the cable was special and got this reply: Is there something additional I need to do to the wire or connector to make it work or am I out of luck? I'm trying to figure out if I've just installed a faulty cable or if there is something special about the cable included with the speaker system. Now that it's all set up I see that it doesn't. the system seems to be selling for over 200 STILL. The sound cuts out, and when I mess with the volume the subwoofer cuts in and out as well. I have owned it for a number of years, but all of a sudden the volume control box is starting to act up. This wire, along with others, was run behind the baseboard and unfortunately my contractor finished the job before I could test whether the wire worked. I own the Cambridge Soundworks DTT2500 speaker system. In my new house I wanted to set up the subwoofer in a location that was slightly further away than the included cable would reach so I purchased a longer RJ11 thinking it would work just as well. The interface cable between the P1000 speaker and the control box appear to be a simple telephone cable (RJ11). I have the Newton 300 system with 3 MC300s, 2 SC300s and a P1000.
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