Hi there !
I have a Denon S-301 that has stopped working , when pressing the on/off button, the blue led light around the button starts flashing repeatedly and nothing works. Suspecting one of the several power outages in my area during windy weather to have something to do with all this.
I have read on this issue and checked my two speakers and subwoofer internal resistance, no short circuit.
-Tried performing the ''hard reset'' and issue persists.
-Decided to carefully open the device to look for anything obvious , i.e. : burnt fuse, visual defect on PCB... etc... none was found.
I am an automotive technician with decent understanding of electronics, but yet not a lot of experience.
I would really like to find a way to diagnose/fix my Denon unit(and learn at the same time ! )because it is immaculate and i don't wanna trash it.
-I started checking how everything is supplied through the voltage transformers , supply to the 2 125v fuses, etc.
-I heard of possible ''output transistor'' failures, and i have found one of 2 fuses not being supplied, suspecting a specific transistor base not being triggered on one the Subwoofer unit PCB, where the supply units are.
Would anyone be kind enough to help me find a solution for this problem , or maybe have access to Denon Wiring schematics
for this specific unit ??
Thanks in advance,
Kind regards,
Claudel
I have a Denon S-301 that has stopped working , when pressing the on/off button, the blue led light around the button starts flashing repeatedly and nothing works. Suspecting one of the several power outages in my area during windy weather to have something to do with all this.
I have read on this issue and checked my two speakers and subwoofer internal resistance, no short circuit.
-Tried performing the ''hard reset'' and issue persists.
-Decided to carefully open the device to look for anything obvious , i.e. : burnt fuse, visual defect on PCB... etc... none was found.
I am an automotive technician with decent understanding of electronics, but yet not a lot of experience.
I would really like to find a way to diagnose/fix my Denon unit(and learn at the same time ! )because it is immaculate and i don't wanna trash it.
-I started checking how everything is supplied through the voltage transformers , supply to the 2 125v fuses, etc.
-I heard of possible ''output transistor'' failures, and i have found one of 2 fuses not being supplied, suspecting a specific transistor base not being triggered on one the Subwoofer unit PCB, where the supply units are.
Would anyone be kind enough to help me find a solution for this problem , or maybe have access to Denon Wiring schematics
for this specific unit ??
Thanks in advance,
Kind regards,
Claudel