Pioneer PDP-503CMX Product Training Manual page 25

Main IC's
IC5505 Main System Microprocessor
IC4803 Sync Processing
IC5301 Digital Video Processor
IC4603 AD Converter
IC4402 RGB Decoder
IC5102 & 5001 I/P Converter & Selector
RGB Block
Function/Control
Module CPU, Wide Control CPU, Input
frequency sync detect, RS232 control,
Remote & key control, input switching, Fan
control and Thermal sensor monitor
Generates sync for OSD with no input,
separates and processes all sync inputs
except DVI and sets clamp levels for sync
output to I/P selector IC
Adjusts screen size, digital video enhance,
On screen display generator, 8 to 10 bit
converter (dither & error dispersion control)
Converts all input analog video signals to
digital RGB (8 bit) except DVI
Converts Y/PB/PR and Y/CB/CR signals to
RGB and outputs to the A to D converter
Converts input digital RGB signals from
Interlace to progressive and from 8 bit one
phase input to 8 bit 2 phase output
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