Pioneer PDP-505HD - Page 44

PDP-505HD
44
A
B
C
D
1
234
1234
TEMP SENS
IC4101
REG
VIN
Vo
Vad
IC3952
PQ20VZIU
FAN
AXM1036
+
–
IC3954
SENS A
3
10VREG
1
1
E27
LM50CIM3-TLB
SENSOR (A) ASSY AWZ6501
K3952
SENS A
2
1
2
3
R4151
D3952
IC3953
From Power Supply assy
0.7V DC GENE
FAN MAX CONT
Q3959
Q3960
REG
VIN
Vo
Vad
IC3956
PQ20VZIU
+
–
+
–
1
1
4
4
3 3
7
+14V
P1
E2
R3971
+10V
REG
IC3951
PQ20VZIU
1
3
4.5V DC
FAN MIN
VOL GENE
10V REG
61
Q3966
IC3604
SYSTEM
CONT U-COM
Q3962
D3953
Q3957
Q3951
Q3952
Q3953
Q3954
D3951
+14V_FAN1
Q3958
FAN MAX
ShutDown
TEMP SENS
76
D3959
5
7
6
IC3954
K3954
SD
U-COM ASSY AWZ6542
ENV.
TEMP
MIN
30.0 43.0 45.0
50 (S.D)
IC3954
Pin1 Out
4.45V 5.22V 5.55V 6.46V
FAN
DRV TP
6.04V 6.08V
13.28V 16.58V
STOP
MIN
30degC
45degC
(MAX)
FAN SPEED
S.D = Caution display for 30 sec.
6.5VDC
S.D DET
K3951
FAN DRV
FAN
AXM1036
FAN
AXM1036
FAN
AXM1036
3.10 FAN CONTROL SECTION