Pioneer SC-LX81 Service Manual page 149

5
Power Supply for
ICEPOWER AMP GATE DRIVER
!
CN7241
-B+10V
1 Q 1/5
2 -B
KM200NA2
!
P7241
NM
JV7241
!
+12.5V
IC7271
NJM78M05FA
IN OUT
1 3
GND
2
!
1
3
2 COM
IN OUT
IC7272
NJM79M05FA
-12.7V
D7211
D7205
1SR154-400
1SS352
!
Q7211
2SD1763A(DE)
D7213
HZU7R5(B1)
D7214
HZU7R5(B1)
!
Q7212
2SB1186A(DE)
D7212
1SR154-400
!
+20V
IC7251
NJM78M12FA
IN
OUT
3 1
COM
2
GND_DF
!
3
2 1
COM
IN OUT
IC7252
-20V
NJM79M12FA
The ! mark found on some component parts should be replaced
with same parts(safety regulation authorized) of identical
designation.
5
6
CN4901
Power Supply for
ICEPOWER AMP MODURATOR
V+5_MD
CN7271
1
V+5_MD
2 GND_MD
3 V-5_MD
R7271
4 GND_MD(S)
NM
GND_MD
KM200NA4
V-5_MD
FANH
FANL
D7215
1SR154-400
Q7222
RT1P431M
D7216
1SR154-400
R7221
Q7221
RT1N241M
22k
V+12DF
Power Supply for
ICEPOWER AMP INPUT STAGE & SP RELAY
R7255 R7251
0
R7253
NM
NM
R7256
0
R7254
GND_DF
NM
V-12DF
SC-LX81
6
7
ICE REG ASSY
W
(AWX9149)
Q 1/5
CN4902
Power Supply for
COOLING FAN
FANSTOP
C7222
NM
D7221
NM
CN7251
V+12DF
1
GND_DF
2
Q 1/5
V-12DF
3 CN4903
GND_DF(S)
4
V+12RY
5
V-12RY
6
KM200NA6E
7
8
CN7302
FANSTOP
1
FAN L
2
I
FAN H
3 CN7701
V+FAN
4
V-FAN
5
LOCK DET
6
KM200NA6R
W
8
A
B
C
D
E
F
149