Crown Com-Tech CT-1610 - Page 24

Com-Tech 810 and 1610 Amplifier Service Manual
]
5-5
Rev. 0
FAULT
ONLY ONE CHANNEL SHOWN
NPN HI
OUTPUT
STAGE
NPN LOW
OUTPUT
STAGE
PNP LOW
OUTPUT
STAGE
PNP HI
OUTPUT
STAGE
+
OUTPUT
+Vcc
–Vcc
TRANSLATOR
LVA LVA
+Vcc
–Vcc
BIAS
CURRENT
LIMIT
TRANSLATOR
BALANCE
INPUT STAGE
P.I.P.
BALANCED
INPUT
VARIABLE
GAIN STAGE
ERROR
AMP
DISPLAY
BIAS
BRIDGE
BALANCE
+Vcc
–Vcc
POWER
SUPPLY
CONTROL
DC/LF
TIMER
POWER
SUPPLY
+Vcc –Vcc
ODEP
A B
A
(ODEP)
B
(ODEP)
D E
(DISPLAY)
D
C
(DISPLAY)
E
HS
TEMP
C
(ODEP)
+24
–24
ENABLE
BARRIER
BLOCK
Figure 5.3 Circuit Block Diagram