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Overall Block Diagram (1/2) - Pioneer PDP-4271HD Service Manual

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1

4.3 OVERALL BLOCK DIAGRAM (1/2)

A
42 SCAN B ASSY
(UPPER)
Scan Signal
VH
IC2801
IC5V
Scan IC
PSUS
IC2802
Scan IC
IC2803
Scan IC
IC2804
Scan IC
B
IC2805
Scan IC
IC2806
Scan IC
CN2802
Serial Data
CN2702
IC2701
Scan IC
IC2702
Scan IC
IC2703
Scan IC
IC2704
C
Scan IC
IC2705
Scan IC
PSUS
IC2706
IC5V
Scan IC
VH
Scan Signal
42 SCAN A ASSY
(LOWER)
D
E
AD1
CN1501
(PEE002A-K)
V+3V
V+8V
AN/P BN/P
LVDS Receiver
CN/P DN/P CLKN/P
Resonance
Block
V+ADR5
F
CLK/LE/HBLK/LBLK
R/G/B
IC1555
IC1554
Driver IC
Driver IC
46
1
2
42 Y DRIVE ASSY
VH
VSUS
Vprst
VH
IC5V
VH DC/DC Conv.
+ Reset
Vprst
Block
Vprst Reg.
+5V +16.5V
VSUS
Y2
VOFS
IC2252
Mask
PSUS
Mod.
VSUS
+5V
+6.5V
Regulator
+16.5V
Resonance
Block
VSUS
+5V
+16.5V
+5V
+16.5V
IC2101
PSUS
IC2253
DK Mod.
Mask
Mod.
+16.5V
Soft-D
Block
+16.5V
IC5V
IC5V/VF
IC5V
DC/DC
VF
Conv.
+5V
Photo Coupler
Block
Y3
Scan Signal
42 ADDRESS
ASSY
AD2
CN1502
V+5V
V+60V
IC1501
Resonance
Block
V+ADR1
IC1553
IC1552
Driver IC
Driver IC
2
3
VOFS
Offset
Block
+16.5V
VOFS
DC/DC
Conv.
Y4
+5V
Logic
Block
Y1
+5V
Y5
60V
Y6
+16.5V
A1
+16.5V
IC3751
Power Amp IC
Right
SP TERMINAL
SPEAKERS
42 ADDRESS
ASSY
AD1
CN1501
V+3V
V+8V
AN/P BN/P
CN/P DN/P CLKN/P
Resonance
Block
V+ADR5
CLK/LE/HBLK/LBLK
R/G/B
IC1555
IC1554
Driver IC
Driver IC
PDP-4271HD
3
4
SENSOR ASSY
V+3VPT
TE1
SCL
IC3652
BR24L02FJ
EEPROM IC
SDA
TEMP1
IC3651
Buffer
MM1522XU
SENSOR IC
AUDIO ASSY
+16.5V
+12.0V
IC3752
Regulator
+12.0V
Buffer
+12.0V
SCL
IC3753
WOW + Volume IC
SDA
+12.0V
A2
Buffer
DC Detect
A_Mute
Block
A_STBY_B
R_Audio
L_Audio
A_NG_B
Left
A3
AD2
CN1502
(PEE002A-K)
V+5V
V+60V
IC1501
LVDS Receiver
Resonance
Block
V+ADR1
IC1553
IC1552
Driver IC
Driver IC
4
To
MAIN
Assy
M9

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