Pioneer SC-82 Service Manual page 41

5
Fan Abnormality Detection
U
IR REG_S ASSY
-12.7V +12.5V
D7211
!
2SD2400A
C7413 C7412
NM NM
D7213
DZ2J075M0
Q7205
D7214
DTA124EUA
DZ2J075M0
Q7204
DTC124EUA
Q7207
DTC124EUA
2SB1569A
F
DIGITAL MAIN_L ASSY
R691 100 R805 10
R688 100 R804 10
UCOM
IC603
GND D
K
DISPLAY ASSY
V+5V_VDD
R6092
28
100
UCOM
IC6001
5
6
FANCTLL
FANCTLH DTA124EUA
Q7224
NM
Q7211
D7200
1SS355
DTC124EUA
1SR154-400
!
Q7212
D7212
NM
X
CONNECT_S ASSY
CN603
CN7952
-23
-23
FANCTLH
FANCTLL
-24
-24
V
V-REG_S ASSY
CN6001 CN7903
-27 -13
XFANERR
6
7
V+8_MD
DTC124EUA
Q7223
D7215
1SR154-400
Q7222
Q7225
DTA143EUA
D7216
R7221 D7221
Q7221
DTC124EUA
NM
22k
Q7226
DTC124EUA
FAN V+FAN V-FAN
OFF 0V 0V
LOW -0.7V
-6.5V
HIGH +6.5V
+6.5V
G
CN7954 CN7004
-7 -7
-6 -6
CN7661 CN7012
-21 -21
SC-82
7
8
Power Supply for
COOLING FAN
CN7281
-1
-2
-3
V+FAN
C7294
V-FAN
GND_MD
NM
LOCK DET
CH
C7222
NM
CH
R7223
3216
NM
FANCTLL FANCTLH
0V 0V
+3.3V
0V
+3.3V
+3.3V
INTERFACE_S ASSY
CN7009
-1
-2
-3
8
A
XFANERR
FANCTLL
FANCTLH
B
C
D
E
F
41