The power supply in your BOSE is easy to repair. Can you use an ohmmeter? The voltage regulator IC has 18V in and 10V out. Also Q1 often shorts from base-emitter. Both are easy checks if you know how to use a meter, and a cheap fix to get your radio working. Heck, I would BUY your radio if you want to sell it non-working!
Well im working on a bose radio now it is the am-fm clock radio and so far the dual bridge amp IC is bad along with a j111 n channel mosfet. these conponents are cheap and if you can do it i would suggest doing it yourself. the main capacitor check the soldered connections the positive joint is known to crack from the print on the board.
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Yes...within a range. The display will automatically lighten and darken depending on the amount of light in the room. During the day or when there are bright lights in the room, the display will go to full brightness. When the lights go off or the room is otherwise darkened, the display will shift down to a lower brightness. You can make the "lower brightness" a bit brighter by holding down the CLOCK SET button and pressing the 'volume up' button.
Are you listening to AM or FM? If you are listening to AM, trying rotating the radio. You may be picking up some type of local AM interference. If it's happening on FM....then I guess there is always a possibility that you may have a defective power supply and what you are hearing is the hum from that.
For the AWR1-1W turn it over and there are 4 screws that you must remove. When your looking at the circuit board the fuse is just below the power supply and back of radio. If the radio makes a ‘POP’ sound when you unplug it may not be the fuse as power is getting past the fuse. I have the same trouble with mine. I called BOSE Tech and he said if it makes that ‘POP’ sound after unplugging it is not fuse or power supply. They will not even allow me to send it in for repairs as the radio is over 15 years old and considered unserviceable.