Pioneer PDP-427XD - 4.8 POWER SUPPLY BLOCK FOR DRIVE ASSYS

PDP-427XD
52
1234
1234
C
D
F
A
B
E
4.8 POWER SUPPLY BLOCK of 42 X DRIVE and 42 Y DRIVE ASSYS
5.0V
from
POWER SUPPLY
from
POWER SUPPLY
VSUS 16.5V 6.5V
VRN
5.0V 6.5V
16.5V
VSUS
VOFS
5.0V
VF
IC5V
Vprst
VH
42 Y DRIVE ASSY
42 X DRIVE ASSY
to
ADDRESS ASSY
to
ADDRESS ASSY
42 SCAN A, B ASSYS
Logic
DK
Mod.
5V
Reg.IC
Mask
Mod.
VOFS
DC/DC Conv.
VH
DC/DC Conv.
IC5V
DC/DC Conv.
Reset
Ofset
Scan
Logic
Scan IC
VRN
DC/DC Conv.
Logic
DK
Mod.
Mask
Mod.
5V
Reg.
Reset
15V
DC/DC Conv.
VPRST
Reg.
Note :
VOFS DC/DC converter and VPRST regulator are
controled by electric volume.
The input of VOFS DC/DC converter and VRN DC/DC
converter is 16.5 V, but they do not operate when Vsus
is under 100 V.