Hi all, I have a Soundcraft DCP100 PSU that has developed a hum.
I am unable to find a schematic for it anywhere.
The problem is R5 has burnt out and is black so I cant identify its value.
It runs in parallel with a small cap between chassis ground and 0v.
If anyone has the schematic, or can have a peek inside one that they own or can suggest a suitable value for this location I would be most grateful.
Thanks,
bce
I am unable to find a schematic for it anywhere.
The problem is R5 has burnt out and is black so I cant identify its value.
It runs in parallel with a small cap between chassis ground and 0v.
If anyone has the schematic, or can have a peek inside one that they own or can suggest a suitable value for this location I would be most grateful.
Thanks,
bce
Have you tried ringing your local soundcraft distributor?Sound Technology plc
Letchworth Point
Letchworth
SG6 1ND
(t) 01462 480000
(e) info@soundtech.co.uk
(w) http://www.soundtech.co.uk
or even ringing Soundcraft Direct? (Switchboard is 01707 6685000
Letchworth Point
Letchworth
SG6 1ND
(t) 01462 480000
(e) info@soundtech.co.uk
(w) http://www.soundtech.co.uk
or even ringing Soundcraft Direct? (Switchboard is 01707 6685000
R5 is a 12R resistor connecting the 0v to a common ground or earth point.
If it has burnt out in the past there has been an issue with a connection to the ground point that was not at ground potential. It is there to form a virtual earth.
Try replacing it. A 1Watt of mostly any low value is sufficient.
If it has burnt out in the past there has been an issue with a connection to the ground point that was not at ground potential. It is there to form a virtual earth.
Try replacing it. A 1Watt of mostly any low value is sufficient.
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