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Registered since

Jul 23, 2021

In need of L1 Classic Schematics.

I have a version of schematics that I believe are not a match. The Digital amplifier PCB has a connector labeled CN813A but schematic states CN803A. The Schematics are labeled Digital Amplifier PCB, Rev. G. P/N 273729 Sheet 1 of 4. My PCB is labeld Rev I. and the connector name is not on any of the schematics.

I just need schematics as I am capable of DIY repair.

My email is

Bose product name

L1 Classic Radiator PA



Firmware Version


App Version


What devices were you using that were affected and what version are they on (e.g. Samsung Galaxy S9 on Android 11, iPhone X on iOS14, etc.)

Detailed description of the issue and steps to reproduce


What environment do you experience the issue in? (e.g. noisy office, quiet kitchen, etc.)


When did you start to experience the issue? Did it work correctly previously?

It died. I am in the midst of repair.

Any troubleshooting steps you took

I have repaired the power supply