Overall Block Diagram (1/2) - Pioneer PDP-4280HD Service Manual

1

4.3 OVERALL BLOCK DIAGRAM (1/2)

42 SCAN B ASSY
A
(HIGH SIDE)
VH IC5V
Scan Signal
S S c c a a n n I I C C
PSUS
IC2901
VH IC5V
SB1
S S c c a a n n I I C C
IC2902
VH IC5V
S S c c a a n n I I C C
IC2903
VH IC5V
S S c c a a n n I I C C
IC2904
VH IC5V
B
S S c c a a n n I I C C
IC2905
VH IC5V
S S c c a a n n I I C C
IC2906
VH IC5V
Scan Signal
S S c c a a n n I I C C
PSUS
IC2801
VH IC5V
S S c c a a n n I I C C
IC2802
C
VH IC5V
S S c c a a n n I I C C
IC2803
VH IC5V
S S c c a a n n I I C C
IC2804
VH IC5V
S S c c a a n n I I C C
IC2805
SA1
VH IC5V
S S c c a a n n I I C C
IC2806
42 SCAN A ASSY
(LOW SIDE)
D
: Wire harness
: FFC
E
42 ADDRESS
ASSY
BLOC K
RESONANC E
VDDLS4
F
IC1554
DRIVER IC
24
1
2
42 Y DRIVE ASSY
VH
IC5V
VSUS
+16.5V
Y 2 SUS
BLOCK
RST-D
BLOCK
VF_P VYPRST
PREST
BLOCK
PSUS
MSK-S
VF_S VF_S
VSUS
SUS
BLOCK
VF_U +16.5V
PSUS
RESONANCE
VSUS
BLOCK
+16.5 VKOFS1 VKOFS3
VSUS
KNOFS1
KNOFS3
BLOCK
SUS
IC5V
BLOCK
Y 3
Photo Coupler
VH BLOCK
IC5V
C N1502
C N1501
AD1 AD2
C LKN/ P
C N/ P DN/ P V+3V
V+8V
AN/ P BN/ P
Receiver
V+5V VADR
LVDS
IC 1501
BLOC K BLOC K BLOC K
RESONANC E RESONANC E RESONANC E
VDDLS3 VADR3
VADR4 VDDLS2 VADR2 VDDLS1
R/G/B
CLK / LE / HBLK / LBLK
IC1553 IC1552
DRIVER IC DRIVER IC DRIVER IC
2
3
Y 5
+5V
+6.5V
VSUS +16.5V
REGULATOR
VADR
Y 4
VF_S
VKNOFS4
+16.5
KNOFS4
SOFT-G
BLOCK
VSNOFS
VKNOFS2
+16.5
VF_S
SNOFS
KNOFS2
Drive Signal
BLOCK
+16.5V
+5V
Drive Signal
SUS
PreDrive
Drive Signal
LOGIC
BLOCK
VYPRST
VSNOFS VKNOFS1
VH
Y 1
MAIN
DC/DC
CONV.
VKNOFS2 VKNOFS4
VKNOFS3
+16.5V VF_S VF_U
+16.5V IC5V VF_P
+5V VADR
15V IC5V/VF Y 7
DC/DC
DC/DC
CONV. CONV.
+5V VADR
Scan Signal
Y 6
SENSOR
ASSY
42 ADDRESS
C N1501
AD1
ASSY
C LKN/ P
C N/ P DN/ P
V+8V
AN/ P BN/ P
Receiver
LVDS
IC 1501
BLOC K BLOC K
RESONANC E RESONANC E
VDDLS3 VADR3
VADR1 VDDLS4 VADR4
IC1551 IC1554
IC1553
DRIVER IC DRIVER IC
PDP-4280HD
3
4
42 DIGITAL ASSY
D24
TEMP1
E SDA _
E SCL _
TE1
BUSY
RXD1
TXD1
CLK1
CNVS S
RST MD _
RST2
AC _D E
M_SW _DET
PS PD _
PD TRG _
EEPRST
D21
C N1502
AD2
V+3V
V+5V VADR
BLOC K BLOC K
RESONANC E RESONANC E
VDDLS2 VADR2 VDDLS1 VADR1
R/G/B
CLK / LE / HBLK / LBLK
IC1552 IC1551
DRIVER IC DRIVER IC
4
D19 D20