Main Drive And 50Y Sub Drive Assys - Pioneer PDP-5071PU Service Manual

1
4.8 50Y MAIN DRIVE and 50Y SUB DRIVE ASSYS
A
B
C
D
E
F
54
1
2
+5V VSUS
PSUS
MASK
BLOCK
Y9
Y8
VH
VH DC/DC
CONV.
Vprst
Vprst Reg.
+5V VSUS +16.5V
PSUS
MASK
BLOCK
+5V VSUS +16.5V
MASK
PSUS
BLOCK
VH
IC5V
IC5V
Photo Coupler
BLOCK
Y2
PDP-5071PU
2
3
+16.5V
50Y SUB DRIVE ASSY
Vprst
VSUS
+RESET
BLOCK
VOFS
VOFS
DC/DC
CONV.
VSUS
+5V
+6.5V
REGULATOR
+16.5V
+5V +16.5V
Y4
RESONANCE
BLOCK
DK MOD.
(IC2107)
+16.5V
SOFT-D
BLOCK
IC5V +16.5V
IC5V/VF
DC/DC
VF
CONV.
Scan Signal
50Y MAIN DRIVE ASSY
3
4
Y12
VOFS
60V
OFFSET
BLOCK
+16.5V
+5V
LOGIC
BLOCK
Y1
Y5
5V
60V
4