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198 posts

Master Geek


Topic # 110654 13-Oct-2012 12:16 Send private message

Hi

I have a velodyne CHT-10R sub hooking up to my home theatre amp in my home theatre room
When I leave I turn off the power at the wall to all devices
A while back the sub started doing something unusual
After switching the power on it would click on and off a few times before settling down and operating normally
Now it will just keep clicking on and off and won't produce any sound

Some kind of electrical issue it would seem

Does anyone have any ideas about:
- what I can do to diagnose further
- how I can fix it
- who could fix it for me in the Auckland area for not too much $$$

Many thanks

BTW I've checked the manual and searched on line but couldn't find anything useful


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Voice Engineer @ Orcon
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Uber Geek
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Orcon
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  Reply # 700600 13-Oct-2012 12:31 Send private message

Sounds like it has a power supply problem.  Best take it to someone who knows something about Hi-fi or otherwise electronic repairs.  Maybe just a blown cap or something.

695 posts

Ultimate Geek
+1 received by user: 24


  Reply # 700609 13-Oct-2012 12:45 Send private message

First thing I would do is bypass the auto on/off sensing. This can sometimes go haywire.



198 posts

Master Geek


  Reply # 700612 13-Oct-2012 12:55 Send private message

Ok just ran another test. It has a blue light at the front that is now flickering on and off in an inconsistent pattern.
The power clicking on and off I mentioned before only starts once it's fed an audio signal but continues after that signal is turned off.
The click is accompanied by a speaker boom possibly indicating it's getting an inconsistent current?
So suggestion that it's a PSU issue may be on the money.
Can anyone recommend somebody good but not too expensive in Auckland that could repair?

695 posts

Ultimate Geek
+1 received by user: 24


  Reply # 700614 13-Oct-2012 12:59 Send private message

Did you even bother testing what I suggested? Its a switch right on the back of the sub. You'd know that because you've read the manual...



198 posts

Master Geek


  Reply # 700636 13-Oct-2012 13:34 Send private message

fahrenheit: Did you even bother testing what I suggested? Its a switch right on the back of the sub. You'd know that because you've read the manual...


never have that switched on because I don't like it - want full bass all the time with no delay

695 posts

Ultimate Geek
+1 received by user: 24


  Reply # 700637 13-Oct-2012 13:36 Send private message

Ok, well that eliminates that issue then. Sounds like a repair job will be required.



198 posts

Master Geek


  Reply # 700689 13-Oct-2012 16:50 Send private message

fahrenheit: Ok, well that eliminates that issue then. Sounds like a repair job will be required.


Paul Money Hi-Fi Albany are going to send it to a service agent. Hopefully something small



198 posts

Master Geek


  Reply # 702004 16-Oct-2012 12:00 Send private message

Capacitors are dead :(

Cost to repair = $225 :o

Cost of a used version of same model on TM = $250 approx

So I'm basically back to $0 and need to decide if I want to spend $225 for an 8 year old subwoofer

Not really

If there was some way to fix it for $100 with exUS and/or unofficial capacitors then yeah

Anyone know about these things

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