Power Supply Block Of 50F X, Y Drive And 50F Scan A And B Assys - Pioneer KRP-500P Service Manual

5

4.8 POWER SUPPLY BLOCK of 50F X, Y DRIVE and 50F SCAN A and B ASSYS

50F Y DRIVE ASSY
Logic
Pre
SUS-B
drive
IGBT
Pre
SUS-G
drive
IGBT
Pre
SUS-U
drive
IGBT
Pre
SUS-D
drive
IGBT
Pre
HMSK
drive
FET
Pre
LMSK
drive
FET
Pre
YPRST
drive
FET
Pre
SNOFS
drive
FET
YKOFS Pre
drive
1
FET
YKOFS Pre
drive
2
FET
Pre
YKOFS
drive
3
FET
Pre
YKOFS
drive
4
FET
Pre
RST-D
drive
FET
Pre
SOFT-G
drive
FET
Scan
Logic
IC5V
50F SCAN A, B ASSYS
5
6
to ADDRESS ASSY
5.0V
from POWER
SUPPLY
UNT
Vadr
5.0V 5V
Reg.IC
17V
VSUS
VC_U 15V
VC_S
DC/DC
Conv.
VC_P IC5V
IC5V DC/DC
Conv.
VH
DC/DC
Conv.
VYPRST
Reg.
VSNOFS
Reg.
VYKOFS
12
Reg.
VYKOFS
3
Reg.
VYKOFS
4
Reg.
VH
Scan IC
KRP-500P
6
7
50F X DRIVE ASSY
Logic
Pre
SUS-B
drive
IGBT
Pre
SUS-G
drive
IGBT
VPU
Pre
SUS-U
drive
IGBT
Pre
SUS-D
drive
IGBT
XPRST
FET
XSOFT-D
FET
Pre
XKOFS1
drive
VKOFS1
FET
Pre
XKOFS2
drive
VKOFS2
FET
Note:
VYPRST, VSNOFS, VYKOFS12, VYKOFS3, VYKOFS4
VXKOFS1 and VXKOFS2 voltages are electrical volume controls.
7
8
to ADDRESS ASSY
5.0V
from POWER
SUPPLY
UNT
Vadr
5.0V 5V 6.5V
Reg.IC
17V
VSUS
DC/DC
Conv.
VPOFS
XKOFS1
Reg.
XKOFS2
Reg.
31
8
A
B
C
D
E
F