Marantz PM7000/N1B Service Manual page 6

TA7317P (Position NO.7290)
TA7317P
Q1
Q5
Q2
R1
Q3
Q4
1 Q6
Q14 Q15 Q16
2
3
DETECT
(POWER ON/OFF)
1
DETECT
(OVER CURRENT)
2
DETECT
DISCHAGE
(IDC VOLAGE)
3
LB1641(Position NO.7402)
LB1641
LB1641
P1 OUT1 VCC2
3 2
INPUT LOGIC
IN1 5
GND 1
8
Q8 Q9
R2
Q12
Q7 Q10 Q11
Q13
R4
R3
R5
Q18 Q19
Q17
Q20
5
8 9
MUTING
REGULATOR
RELAY
SCHMITT
OR
DRIVE
SUB
STRAGHT
7 4 5
GND
OUT2 P2 VCC1
8 10 9 7
PRE
DRIVER
NJM2068 (Position NO.7501,7502,7503)
A OUTPUT
A -INPUT
A +INPUT
NJM2068
9
V+
6
-INPUT
+INPUT
4
7
V-
PC817 (Position NO.7269,7270)
PC817
6
4
1
NJM2114(Position NO.7555,7655)
V+
-INPUT
4 VZ
+INPUT
V-
6 IN 2
4
NJM2068
1 8 V+
A
2 7 B OUTPUT
B
3 6 B-INPUT
V- 4 5 B+INPUT
3
4 3
1 2
2
NJM2114
1 8 V+
A OUTPUT
A
A -INPUT 2 7 B OUTPUT
B
A +INPUT 3 6 B-INPUT
4 5 B+INPUT
V-
NJM2114
OUTPUT
OUTPUT