Technical information

Macro-Tech 600/1200/2400 Power Amplifiers
Page 25
Fig. 5.1 Circuit Block Diagram
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
INPUTS
1/4" PHONE
XLR
VARIABLE
GAIN STAGE
ERROR
AMP
DISPLAY
BIAS
BRIDGE
BALANCE
+Vcc
–Vcc
POWER
SUPPLY
CONTROL
DC/LF
TIMER
ODEP
A B
A
(ODEP)
B
(ODEP)
D E
(DISPLAY)
D
C
(DISPLAY)
E
HS
TEMP
C
(ODEP)
ENABLE
POWER
+Vcc
–Vcc
SUPPLY