Hi @channe_rahul , · Couldn’t find the schematics for a Bose AWRCC2 but did find the AWRCC3 service manual which may help as far as the power supply goes as perhaps there isn’t too much difference between the two models. · Here’s an image of the power supply section taken from the service manual which shows that there is a fuse designated F1. It is a slow blow fuse and its’ value is determined by the voltage supply in the location where it was first sold. It may not look like a fuse that you were expecting to see so look for the F1 component designation on the board instead. It should be near the power cord connections. · (click on image to enlarge for better viewing) · Here’s a link that you may also find useful as it does relate to the AWRCC2 model. · Hopefully a start. · Update (08/24/2020) · Looks like your board is not like the circuit that I posted as there doesn’t appear to be a power transformer etc. · The RT component may be a thermistor so try testing that with an Ohmmeter to make sure that it is no open circuit. · Other than that all you can do is to trace the tracks from the input connector and check where they go to and which component that they pass through first. Obviously the capacitors near the input may only be filter capacitors so check any diodes etc in the path first.

Hi I’m a Bose fan and repair them I been dealing with them for 14 years. The acoustic wave ii at higher volumes will have more clarity and more bass are per the smaller wave music system ii and iii will not be as clear at higher volumes I’m talking about 80 and up it still performs well though. I’d recommend the acoustic wave ii system or acoustic wave CD-3000. Both have same looks. Top is lightly different. Acoustic wave ii last year model has MP3 on CD platform and slightly better bass response. If you want smaller then the wave music system ii and iii smaller model will be good. I still love these units I don’t think Bose should have discounted them. But now I see it as I have a unique system not everyone will be able to have so it will be consider vintage and unique