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1
3.1.5 Y DRIVE ASSY
A
B
C
PN_MUTE
D
YCP-MSK
YSUS-MSK
YSOFT-D
DEW_DET
E
YDRIVE_PD
YDC_DC_PD
VOFS_ADJ
SUSGND
SUSGND
F
36
1
2
CLR
27
Photo Coupler
CLK
25
Photo Coupler
OC1
30
Photo Coupler
OC2-1
31
Photo Coupler
LE
40
Photo Coupler
42
AB
Photo Coupler
43
SI1
Photo Coupler
45
SI2
Photo Coupler
IC2501,IC2502,
IC2001
IC2505,IC2510,
TC74ACT541FT
IC2512,IC2513,
IC2514,IC2525,
HCPL-M611
OC2-2
Photo Coupler
IC2516
HCPL-M611
IC2005
TC74ACT541FT
OC2-2
33
24
YPR-U1
19
YPR-U2
21
9
YSUS-B
10
YSUS-U
12
YSUS-D
18
YOFS
13
YSUS-G
16
15
22
46
IC2007
TC74ACT540FT
Y2
PE1013
Q2102
Dew DET.
circuit
Vsus
P.D.
DET.
+15V
1
D. GND
2
3
+13.5V
-9V
4
5
IC5V UVP
6
7
D. GND
VSUS
10
VOFS UVP
VSUS
11
13
VOFS OVP
14
SUSGND
VH UVP
VH OVP
2
3
VH
IC5V
IC2504
TC74ACT540FT
IC2506
TC74ACT540FT
IC2503
TC74ACT540FT
+13.5V
SUS muteDET.
-9V
circuit
IC2004
TC74ACT541FT
YPR-U1
YCP-MSK
YPR-U2
IC2006
YSUS-MSK
YSOFT-D
IC2005
TC74ACT541FT
YOFS
IC5V
IC5V, VF
VF+
D-D CONV.
VF-
VOFS
VOFS D-D
CONV.
VH
VH D-D CONV.
PDP-503PC
3
4
Y5
To SCAN ASSY
(Lower)
To SCAN ASSY
(Upper)
VH
Y3
Pulse Module
14
(STK795-460)
16
IC2206
18
20
Pulse Module
14
(STK795-460)
16
IC2214
18
20
charge pump
circuit
Photo Coupler
IC2202
HCPL-M611
Photo Coupler
IC2208
HCPL-M611
4
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