Digital Video Assy - Pioneer PDP-505PU Service Manual

5

3.1.5 DIGITAL VIDEO ASSY

• Block Diagram
Works by passive standby power Works by passive standby power Works by passive standby power
CN5001
DIGITAL VIDEO ASSY
(R,G,B) x10bit x2 (R,G,B) x10bit x2 (R,G,B) x10bit x2
HD, VD, CLK, DE
Xtal
OR
OR
1.5V 3.3V
RST RST
IC IC
For HD model
RST2
DVI_ DET
MSTATE
RSTBTMDS
L_ SYNC
VD_ IN
DVI_ MUTE
OP_ DET
W E_ IC4
3 STATE 3 STATE 3 STATE
A_ SCL/ A_ SDA
RXD0
TXD0
REQ
CST3
MODEL
B_ SCL/ B_ SDA
MRAC_ DET
MODE
KEY
REM
For panel module
POW ER
PNL_ MUTE
DITHER
MAX_ PLS1
MAX_ PLS2
MASK1
STB_ SW
SRS
FOCUS
TRUBASS
A_ MUTE
LED_ R
LED_ G
AC_ DET
CN4001
POWER SUPPLY ASSY
STB_ MT
STB3.3V
AC_ DET
5
6
Works by active standby power Works by active standby power Works by active standby power
LVDS LVDS LVDS
YSUSA,YSUSB YSUSA,YSUSB YSUSA,YSUSB
YSUSA, YSUSB
SCAN SCAN SCAN
SCAN
XSUSA, XSUSB
IC4
FLASH
ROM
THEATER
Sequence data
MANTA
TCK TMS
TRST TDI
JTAG
TDO
RST
FLASH
writing
MUTE
IC4_ RST TXD RXD
CLK IC4_ BUSY
PSIZE
IC4_ CE REQ_ IC4
EEPRST
E_ SCL
EEP
E_ SDA
ROM
Xtal
ADR_ PD
SCAN_ PD
YDRV_ PD
YRES_ PD
YDC_ PD
Excepting panel module
IC5V_ PD
XSUS_ PD
XDC_ PD
XDRV_ PD
PS_ PD
DCC_ PD
MODULE UCOM
DC- DC
IC5201
CONV.
PSW _ D
YDRV_ UC
XDRV_ UC
PD_ MUTE
BUSY
RXD1
CLK1
CNVSS
TXD1
RESET
TEMP1
VOFS
VSUS
DRIVE_ OFF PD_ TRG RELAY
Mechanism
PD
SW for Mute
LED
DRIVE RELAY CONTROL
OFF
POWER ON
AC- OFF
RELAY
6
7
OR
&
OR
PD
MUTE
Writing
OR
8bit
DAC
AND
Vm adj: STB
3.3V
RST
IC
Vsus
Each
OR
PD
PDP-505PE
7
8
50 ADDRESS ASSY x8
Video signal
IC5
Sync. signal
3-wire serial down
3-wires serial up
PANEL
SIZE
Signal for JTAG
PD
Parallel bus
IIC communication
50 Y DRIVE SCAN Asynchronous serial down
ASSY ASSY
Asynchronous serial up
Others
MUTE
PD
PD
PD
PD
PD
Connector
disconnection
detection
Vofs
50 X DRIVE
ASSY
MUTE
PD
PD
PD
Connector
disconnection
detection
Vrst
PANEL SENSOR ASSY
Terrmal
sensor
8
A
B
C
D
E
F
31