Drive Assy - Pioneer PDP-504PE Service Manual

1
3.1.2 50 Y DRIVE ASSY
• Block Diagram
A
50 Y DRIVE ASSY
Y1
CLK1 Photo Coupler
Photo Coupler
CE
B
Photo Coupler
CLK2
Photo Coupler
CLR
Photo Coupler
OC2
OC1 Photo Coupler
SI Photo Coupler
C
YPR-U
YSOFT-D
YSUS-G
YSUS-B
YSUS-U2
YSUS-D2
YSUS-U1
YSUS-D1
YSUS-MSK
YOFS
YSUS-PD
SCN_5V_PD
Y_DD_PD
SCAN_PD
D
YDRIVE_PD
E
Y4
CN2301
1
16.5V
DGND 2
6.5V 3
DGND
4
IC2305
N.C. 5
REGULATOR
6
N.C.
VSUS 7
VSUS 8
N.C. 9
F
SUSGND 10
SUSGND 11
24
1
2
Y2
VH
IC5V
VH
Y3
YSUS
-U2
5V
YSUS-D2
YSUS-U1
5V
YSUS-D1
YSUS-MSK
YOFS
IC5V, VF
D-D CONV.
P.D.
DET.
IC5V UVP
5V VOFS OVP VOFS
D-D CONV.
VOFS UVP
VSUS
VSUS
VH D-D
VH OVP
CONV.
VH UVP
2
3
To
50 SCAN B ASSY
To
50 SCAN A ASSY
VSUS
IC2203
YPR-U
YSOFT-D
YSUS-G
YSUS-B
IC2201
L2202
HB
DRIVER
L2203
SUS
GND
IC2202
L2204
HB
DRIVER
L2205
SUS
GND
XSUS
P.D.
Circuit
IC2302
IC2304
Photo
Coupler
IC2308
IC2309
Photo
Coupler
VF+
VF-
IC5V
VOFS
VH
PDP-504PU
3
4
Mask Module
VSUS
To
IC2303
SCAN ASSY
STK795-513
5V
16.5V
Mask Module
VSUS
IC2307
STK795-513
5V
16.5V
4