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5. Electronic spares and servicing procedures
5.5.1
Description of the PMP
Description
•
The PMP receives the input signals in two ways:
- the input connectors on the PMP board: DVI connector
- the separate input layers via the backplane: 10 bits for video image, 48 bits for data image
•
In the scaler, several signals can be mixed with the server signal before being sent to both the formatter and the DVI output.
•
The preprocessor handles the incoming and outgoing DVI signals.
•
The PMP also contains a processor and a HDTV deinterlacer.
•
The RS232 serial port is connected to the processor.
•
The OSD FPGA is situated behind the scaler.
•
Digital data is converted to LVDS before it is sent to the formatter.
Schematic overview
data
data
video
layer 1: DVI
DDR
DVI out
RS232
DDR
OSD
formatter
Flash
CPLD
Ethernet
DDR
Field memory
HDTV deinterlacer
DDR
Boot
OSD
backplane
data
Pixel Map Processor
preprocessor
graphics
port
video
port
scaler
processor &
HDTV deinterlacer
Image 5-31
PMP: schematic overview
44
R59770097 ID H250 / H500 15/05/2007
Summary of Contents for iD H250
Page 1: ...iD H250 H500 Service manual R9010570 R9010520 R59770097 00 15 05 2007...
Page 10: ...1 Safety 6 R59770097 ID H250 H500 15 05 2007...
Page 22: ...2 General information 18 R59770097 ID H250 H500 15 05 2007...
Page 24: ...3 Software 20 R59770097 ID H250 H500 15 05 2007...
Page 68: ...5 Electronic spares and servicing procedures 64 R59770097 ID H250 H500 15 05 2007...
Page 84: ...6 Optical spares and servicing procedures 80 R59770097 ID H250 H500 15 05 2007...