AC INLET
EMI FILTER
STANDBY RELAY
POWER SWITCH
FUSE F901
FUSE F903
100mA 250V
AH: 5A 250V
C: 3.15A 350V
FUSE F902
AH: 5A 250V
C: 3.15A 350V
R-CORE
R CHANNEL
STANDBY
MAIN
TRANSFORMER
L CHANNEL
MAIN
TRANSFORMER
TRANSFORMER
5V REGULATOR
12V RECTIFY
B901 IC1
B902
LOGIC CIRCUIT
MCU
ON PREAMP
LOGIC CIRCUIT
ON FPP
12V TRIGGER
STANDBY
ON BAL
RELAY
ON PSU
±20V RECTIFY
±72V RECTIFY
ON PSU
B606
ON PSU
HIGH CURRENT
RECTIFY
POWER SUPPLY
ON PSU
B603 B604
±72V REGULATOR
B606
ON PSU
ISC CIRCUIT
ON PSU
D602 D603
L CHANNEL
ON L AMP
AMPLIFIER
B605
±20V REGULATOR
B606
ON PSU
PRE AMP
ON PRE AMP
BALANCE AMP
ON BAL
OUTPUT RELAYS
L CHANNEL
ON L AMP
L CHANNEL
INPUT RELAYS
ON PREAMP
±20V RECTIFY
±72V RECTIFY
ON PSU
B606
ON PSU
HIGH CURRENT
RECTIFY
POWER SUPPLY
ON PSU
B603 B604
±72V REGULATOR
B606
ON PSU
ISC CIRCUIT
ON PSU
D602 D603
L CHANNEL
ON L AMP
AMPLIFIER
B605
±20V REGULATOR
B606
ON PSU
PRE AMP
ON PRE AMP
BALANCE AMP
ON BAL
OUTPUT RELAYS
L CHANNEL
ON L AMP
L CHANNEL
INPUT RELAYS
ON PREAMP
1. POWER DISTRIBUTE DIAGRAM
3-9
BLOCK DIAGRAMS
