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C-Mark MR2450 amplifier.

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bobthelogs View Drop Down
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    Posted: 26 April 2017 at 2:12pm
Hi,

I am looking for either a manual or a circuit diagram for a C-Mark MR2450 amplifier.

I have one fan that runs slowly all the time and one that doesnt.

are they  https://www.amazon.com/Jhua-adjustment-Rotatable-Ventilation-Circulator/dp/B01DUCAY0K - dual speed fans or on all the time ? Are they on thermostats ?

Is there a replacement fan available to retrofit ? 

Any information greatly appreciated.

Regards
Dan.
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msoundsystem View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote msoundsystem Quote  Post ReplyReply Direct Link To This Post Posted: 27 April 2017 at 9:01am
Fans should permanently be on. If you have a lazy fan then swap fans from left to right and see if it carry's on. If it does then the fan is broke. Highly doubt it will be the circuit that drives the fans.
MSound
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bobthelogs View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bobthelogs Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2017 at 3:31pm
Hi. I swapped the left hand fan over and it worked on the right side.
Therefore I have two good fans and a problem on the left control.


Are the temp sensors n/o or n/c ?

A drawing would be ace.

Thanks
Dan
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bobthelogs Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2017 at 3:32pm
Do the fans go through a relay switch ?
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