Bose 1800-V - Page 10

10
BLOCK DIAGRAM
Amplifier
CH 1
CH 2
CH 2
CH 1
CH 1 CH 2
OUT
OUT
CH 1 OUT CH 2 OUT
Output Relays
Fan Drive
Commutation Control
(Class H)
Power Supplies
On/Off Standby
Power
Fuse
(230V)
Only
Regulation Phase Control
Lowpass Filter
Temperature Sense
Protection
Display Drive
Display
Level Control
Sequence Control
Input  Module
Bose EQ
®
Line Filter
Sequence
H
N
AC
CH 1
CH 2
Input
Send
RCV
CH 1
CH 2
Figure 8. 1800-V Block Diagram