Nisca PR5350, Руководство по обслуживанию

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Mechanical Actuators
Consists of sensors and the motors to transport the cards.
1.3.2 Main Circuit Board
(
PBA-MAIN
)
There are CPU Block, Memory Block, Actuator Control Block.
Following items are the main components:
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32 bit CPU
(
IC1
)
32 bit single chip micro processor, activated on the clock of 12.5 MHz
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Flash Memory
(
IC8
)
A memory of 4 M bytes for storing the firmware.
It can be downloaded through the SCSI or USB interface.
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SRAM
(
IC9
)
1 M byte memory to be used for cash memory of CPU
(
IC1
)
.
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EEPROM
(
IC4
)
4K byte memory to record total frame number, number of errors, setting values of
the specific unit, etc.
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Serial interface driver
(
IC33
)
Translated the signal of CPU to RS232C for communication with the built-in encoder
unit.
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SDRAM
(
IC14
)
Memory of 16 M byte which stores the data of RGB +characters for 2 frames.