Service manual
Table Of Contents
Main Supply (Diagram A1)
Some important notes on beforehand:
• VBAT is not isolated from the main supply ('hot').
• VBAT is alignment free.
The Main Power Supply generates the 141 V (VBAT) and the 28 V for the audio part,
and is based on the so-called 'down converter' principle.
Figure: Down-converter principle