Crown Micro-Tech 1201 - Circuit Block Diagram

Page 23
Micro-Tech 600/1200/2400 Power Amplifiers
FAULT
ONLY ONE CHANNEL SHOWN
NPN HI
OUTPUT
STAGE
NPN LOW
OUTPUT
STAGE
PNP LOW
OUTPUT
STAGE
PNP HI
OUTPUT
STAGE
RED
(+)
BLACK
(GND)
OUTPUT
+Vcc
–Vcc
TRANSLATOR
LVA LVA
+Vcc
–Vcc
BIAS
CURRENT
LIMIT
TRANSLATOR
BALANCE
INPUT STAGE
BALANCED
INPUT
VARIABLE
GAIN STAGE
ERROR
AMP
DISPLAY
BIAS
BRIDGE
BALANCE
+Vcc
–Vcc
POWER
SUPPLY
CONTROL
DC/LF
TIMER
POWER
+Vcc
–Vcc
ODEP
A B
A
(ODEP)
B
(ODEP)
SUPPLY
D
C
HS
TEMP
C
(ODEP)
+24
–24
1/4" PHONE
OPTIONAL
MT-XLR (SHOWN)
OR MT-BB
D
(DISPLAY)
Fig. 5.1 Circuit Block Diagram