Sony XM-405EQX pulling 8 amps.. - diyAudio
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Old 24th June 2011, 04:45 PM   #1
marko is offline marko  United Kingdom
diyAudio Member
Join Date: May 2004
Location: donnyuk
Default Sony XM-405EQX pulling 8 amps..

Hi all, is anyone familiar with this amp? last of the decent Sony stuff, seams quite well built inside! anyway, the issue is it's stuck in protection and pulling 8 amps, all psu fets and outputs check out OK, something tells me it's a shorted transformer, I poked around a bit there and amp draw is around 1 amp now but amp still in protection.. will measure V on pwm if that helps..

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Old 24th June 2011, 05:34 PM   #2
marko is offline marko  United Kingdom
diyAudio Member
Join Date: May 2004
Location: donnyuk
kinda fixed this! as mentioned above, the amp is now only pulling 1amp and works fine, but I wriggle the transformer it goes back up to 8amps! i can see where it's shorting and it's the thinner wires. what can I use to isolate the wires? lacquer of some description?
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Old 24th June 2011, 07:21 PM   #3
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
It depends on the point where it's shorted. If you can slide an adhesive coated insulator (can be as simple as a piece of paper coated with adhesive), that will stop the windings from shorting.
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