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allaroundsound 6th February 2012 11:34 PM

Diamond Audio D6 1500.1
amp has burn marks on board at component u30d20a "mospec". The amp, when only b+ and main ground are applied turns on and shows voltage on the remote. . No remote power applied. Amp powers up and power led is green, no protect light. This part is perhaps the neg. rectifier? Here's the readings on that part powered up;

pin #1 .034 volts
pin #2 -105.7 volts
pin #3 .035 volts



timwebb 7th February 2012 12:11 AM

what is the amp doing? is it producing any sound?

allaroundsound 7th February 2012 12:26 AM

i might have factory wave soldering issue. there are many areas that need solder still. ill get u an update when i get it back together. and yes it has audio timwebb. very low power.

allaroundsound 7th February 2012 02:48 AM

is it ok to sub a small 10mf 50volt for a small 10mf 100volt in a class d amp?

timwebb 7th February 2012 02:51 AM

i dont know. depending where it goes.

allaroundsound 7th February 2012 02:56 AM

top right section of above picture #2. all four caps were folded over and all had one leg each broken off the board. strange. they are all about a half inch tall and a quarter inch diameter. thanks

allaroundsound 7th February 2012 02:57 AM

i have didrect replacement for 2 out of four. the remaining two i only have 100volt ratings not 50volt. all the new ones will fit well.

timwebb 7th February 2012 03:01 AM

those should be the voltage regulators. depending how much voltage is on them u might get away with it. but it would be best to use the 100v caps.

allaroundsound 7th February 2012 03:03 AM

ok. the originals are 50 volt. im going to install 100volt caps. thank you

timwebb 7th February 2012 03:21 AM

oh i read it wrong my bad. it will work.

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