img pa-amp issue - Page 2

gruni · 11th August 2009, 04:31 PM

they are f-types.

gruni · 12th August 2009, 10:22 AM

i measured BR1, C54, C65, D33 and D11 and none of them has a short circuit. so i think the fuses really just blew because of the inrush current and i can replace them without destroying more of the amp?

ps: i realized that only one channel of the bad opamp was affected. so i just swapped the bridge inverter opamp and the receiver opamp for the left channel and now both is working without wasting a new opamp. this is cost effective repairing

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11th August 2009, 04:31 PM	#11
gruni diyAudio Member Join Date: Feb 2008	they are f-types.

12th August 2009, 10:22 AM	#12
gruni diyAudio Member Join Date: Feb 2008	i measured BR1, C54, C65, D33 and D11 and none of them has a short circuit. so i think the fuses really just blew because of the inrush current and i can replace them without destroying more of the amp? ps: i realized that only one channel of the bad opamp was affected. so i just swapped the bridge inverter opamp and the receiver opamp for the left channel and now both is working without wasting a new opamp. this is cost effective repairing