Jamo Sub650 Schematic - AVS | Home Theater Discussions And Reviews
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post #1 of 4 Old 03-28-2015, 05:26 PM - Thread Starter
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Jamo Sub650 Schematic

Hi Guys,

This is my first post here so if its not where I should be posting please let me know.

I have had a Jamo SUB650 for a couple of years now and am happy with it but in the last month it keeps blowing fuses when i powered it on. It did power on occasionally but only when i very quickly switched it on at the on at the rocker switch. I noticed that the on/off rocker switch for power felt a bit flimsy and cheap so I said to myself i will open the sub up, get to the board and replace the switch with a good load breaking 2 pole switch as i thought it may be causing an arc / inrush at power on.

So i opened it up, and found a couple of burnt capacitors, a burnt resistor and another component which I cannot identify. I would like get get my hands on a schematic so i can replace the components myself but Jamo basically said to contact a distributor in Australia and didn't really want to help.

If anyone here has a schematic for this subwoofer or is able to help me locate one that would be much appreciated.

Here are some pics of the board...

Thanks,
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post #2 of 4 Old 03-31-2015, 08:48 AM
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If you do a large number of Google searches, you may locate a service manual. Some sites will charge $15-25 to download the manual.

Many manufacturers consider the schematics (in their service manuals) to be proprietary information.
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post #3 of 4 Old 04-08-2015, 04:49 AM - Thread Starter
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After much searching I managed to find the schematics. PM me if anyone would like a copy.
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post #4 of 4 Old 04-10-2015, 10:00 PM - Thread Starter
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BTW, the schematics didn't tell me exactly what values of the resistors or capacitors were. I managed to to a bit of research of my own, bought the parts from element14 and replaced them. I also changed that cheap rocker power switch with a proper load break switch. The sub works like new again.
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