Ic Explanation - Mitsubishi DY-3A66U-AL Service Manual

IC EXPLANATION

IC802 PST9136
CO1
IC201,960,961 LF33ABPT
V 1
IN
GND
2
IC1 HA12181FP-EL
IF
IF
16
LPF
INPUT
AMP.
CONSTANT
CURRENT
4
SOURCE
CIRCUIT
7
AF
3
INPUT
SW1
CONSTANT-
VOLTAGE
CIRCUIT
2
5 VCC
4 OUT
OP1
GND
3
INHIBIT
CONTROL
START
INHIBIT
DUMP
PROTECTION
DETECTION
IF AGC OUTPUT
1 14
IF AGC
DETECTION HPF 1
PULSE
DETECTION
SW2
PHASE
CIRCUIT
LEVEL
SW3
DIFFERENTIAL
DETECTION
CIRCUIT
5
PHASE
CONDENSER
IC321,390,421 NJM4565V-TE1
OUT1
-- IN1
+IN1
V--
CURRENT
LIMIT
REFERENCE
VOLTAGE
ERROR
AMPLIFIER
TERM.
PROTECTION
AF AGC
15
OR
AF AF
LPF
AMP. AGC
HPF
BYPASS SW4
AMPLIFIER
(WAVEFORM
COMPENSATION)
CONSTANT
SW5
CURRENT
CIRCUIT
(WAVEFORM
COMPENSATION)
6 8
HOLDING BY-PASS
CONDENSER CAPACITOR
10
1 8
2 7
A B
3 6
4 5
3 V
OUT
DRIVER
12
PULSE
DETEC-
TION (1)
GATE PULSE
NOISE
GENERATOR
AGC
PULSE
DETEC-
TION (2)
(1)
(2)
GATE PULSE (1)
GATE PULSE (2)
BUFFER
AMPLIFIER
10 9
AF
OUTPUT
V+
OUT2
-- IN2
+IN2
13
11