Sony DSR-300 Service Manual page 157

DSR-300/P(E)/V1
DSP COM
This item shows a detail of the communication check result between
each LSI and microcomputer.
004H: communication error between RC LSI and microcomputer
002H: communication error between PR LSI and microcomputer
001H: communication error between PP LSI and microcomputer
Note: The RC LSI performs the data communication to a
microcomputer with the following six signals:
Pin 26: CS
Pin 25: SCK
Pin 24: SDA0
The PR LSI performs the data communication to a
microcomputer with the following six signals:
Pin 58: CS
Pin 57: SCK
Pin 56: SDA0
The PP LSI performs the data communication to a
microcomputer with the following six signals:
Pin 41: CS
Pin 40: SCK
Pin 39: SDA0
If an error is detected during the data communication with
LSI, other error item may be detected at the same time.
MEMORY
This item shows a detail of the communication check result between
each EEPROM and microcomputer.
080H: communication error between EEPROM (IC103) on the ES
boar and microcomputer
040H: communication error between EEPROM (IC303) on the DPR
boar and microcomputer
020H: communication error between EEPROM (IC3) on the TG
boar and microcomputer
010H: communication error between EEPROM (IC504) on the AT
boar and microcomputer
Note: If there is an error in EEPROM on the TG, DPR, or ES
boards, and if the back up data is used, or if there is an error
in EEPROM on the AT board, and if the microcomputer's
standard value is used, indication of each EEPROM on the
service menu shows a blank.
Pin 23: SDA1
Pin 22: SDA2
Pin 21: SDA3
Pin 55: SDA1
Pin 54: SDA2
Pin 53: SDA3
Pin 38: SDA1
Pin 37: SDA2
Pin 36: SDA3
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