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Digital Video Assy - Pioneer PDP-503PC Service Manual

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1

3.1.3 DIGITAL VIDEO ASSY

A
MR INTERFACE
ASSY
RGB 2 phase 8 bit
IC4204
SiI861
B
C
To
MR
IC4005
A_SCL, A_SDA
Expander
IC4011
Expander
To
AUDIO
Assy
D
E
F
34
1
2
DIGITAL VIDEO ASSY
3.3V
Line
Buffer
Address BUS
VD
Control Signal
HD
3.3V
DE
CLK
Reflesh-rate
IC1191
Det.
Flash ROM
3.3V
HD
VD
RESET
AND
Reset IC
CN1201
EXT_RXD
EXD RXD
EXT_TXD
EXD TXD
RXDO
TXDO
RXDO
TXDO
WE_PN
RESET
Reset IC
PDP-503PC
2
3
3.3V
2.5V
IC1301 (IC31 L)
(PD6358)
DRAM
IC1401 (IC31 R)
(PD6358)
DRAM
Data BUS
3.3V
IC1703 (IC23)
(PE5064)
Address
Resonance
IC1101
(HD64F2328VF)
Panel Microcomputer
PC_VIDEO
ADR_K_EMG
RXD
BUSY
REQ_PU
5.0V → 3.3V
3.3V → 5.0V
AND
STB5V
IC1207
(M30624FGAFP)
Module Microcomputer
AC_OFF
PD_TRIGGER
THERMAL
SENSOR
Assy
3
4
Address Data
ADR CONNECT A - D
Assy (Left section)
Address Data
ADR CONNECT A - D
Assy (Right section)
Y DRIVE Assy
Sustain
Control
X DRIVE Assy
Control
ADR
RESONANCE
5V
Assy
OR
Panel W/B ADJ.
Hour/Pulse meter
pn
STB5V
5V
3.3V
2.5V
EEP
IIC BUS
ROM
DC/DC
DCC_PD
Converter
5V
Block
OR
SW POWER SUPPLY Module
4
STB5V

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