Bose PCB 291619

[EduAQA]

Does anybody has this schematic? My Bose Wave Music System (CD upload from front, not on the top), is not sending the CMOS level to the STDBY of the power amplify TDA7376B, and even if I force the TDA7376B to arm injecting 4.5V on the PIN 7 still not sound (just a glitch because if the power injection), so something before, maybe on the selection input section or volume/EQ control
This board is that one the use the capacitor 0.3 5v to keep the information, not 9v battery

I appreciate if anybody can help

 

[Jander04]

I am surprised that no one is coming forward with a schematic for the the radio you described which seems to have several names, but are the same radio:
- Wave Music System
- AWRCC1
- AWRCC2 (I don't know the difference between the 1 and 2 music systems)

I have seen snippets of the Bose Wave Music System III, so schematics are out there. Maybe they are in the business of repairing these radios and don't want to share. Too bad.

 

[Martaine2005]

https://maker.pro/forums/threads/bose-wave-audio-system.292029/

Have a look at the linked thread, it may have yours there.

Martin

 

[Delta Prime]

No schemo... sorry.
Have you tried depressing the mute button?