Pioneer SC-37 Service Manual page 187

5
QQ
3 7 63 1515 0
ply for
WER AMP GATE DRIVER
CN7241
-B+10V
1
2
-B
KM200NA2
!
P7241
NM
JV7241
!
+12.5V
IC7271
NJM78M05FA
IN
OUT
3 1
GND
2
!
3
2
COM 1
IN OUT
IC7272
NJM79M05FA
-12.7V
D7211
1SR154-400
TE
L 13942296513
!
Q7211
2SD1763A(DE)
D7213
HZU7R5(B1)
Q7205
TA124EUB
D7214
HZU7R5(B1)
204
C124EUB
Q7207
LTC124EUB
!
Q7212
2SB1186A(DE)
D7212
1SR154-400
!
+20V
IC7251
NJM78M12FA
IN
OUT
3 1
COM
2
GND_DF
!
3
2 1
COM
IN OUT
IC7252
www
-20V NJM79M12FA
.
und on some component parts should be replaced
arts(safety regulation authorized) of identical
on.
5
http://www.xiaoyu163.com
6
P
1/5
CN4901
Power Supply for
ICEPOWER AMP MODURATOR
V+5_MD
GND_MD
V-5_MD
FANCTLL
FANCTLH
V+5_MD
D7215
1SR154-400
Q7222
LTA143EUB
D7216
1SR154-400
Q7221
LTC124EUB
V+12_DF
Power Supply for
ICEPOWER AMP INPUT STAGE & SP RELAY
R7255
0
R7253
NM
R7256
0
R7254
NM
V-12_DF
x ao u163
y
i
6
http://www.xiaoyu163.com
2 9
8
CN7271
1 V+5_MD
2
GND_MD P
1/5
CN4902
3 V-5_MD
R7271
4
GND_MD(S)
0
KM200NA4
Power Supply for
Q Q
3 6 7 1 3
XFANERR
C7222
1000p/50
CH
R7223
3216
NM
D7221
R7221
NM
22k
CN7251
KM200NA7
V+12_DF
1
GND_DF
2
V-12_DF
3
R7251
P
1/5
GND_DF(S) CN4903
4
0
V+12_RY
5
V-12_RY
6
V-12_RY
7
GND_DF
.
SC-37
7
9 4 2 8
COOLING FAN
CN7302
1 5 0 5 8 2 9 9 4
XFANERR
1
FANCTLL
2
AC
FANCTLH
3 CN7723
V+FAN
4
V-FAN
5
LOCK DET
6
KM200NA6
FAN V+FAN V-FAN
OFF 0V
LOW -0.7V
-6.5V
HIGH +6.5V
-6.5V
m
co
7
8
9 9
A
B
C
2 8 9 9
D
0V
E
F
T
187
8