2-28 DXC-D35/D35WS(UC)
DXC-D35P/D35WSP(CE) V1
[Reference][Reference]
[Reference][Reference]
[Reference]
If the input of synchronization signal to the PR LSI or RC LSI is abnormal,
the connection check between PR LSI and RC LSI also detects the abnor-
mality.
RC LSI relation check is carried out only when the digital output of DXC-
D35/D35P is used for connecting DSR-1/1P and so on.
DSP COM
The details of check result for the communication between each LSI
and microcomputer are displayed.
004H: The communication between RC LSI and microcomputer is
abnormal. (IF IC520)
002H: The communication between PR LSI and microcomputer is
abnormal. (PR IC411)
001H: The communication between PP LSI and microcomputer is
abnormal. (PR IC405)
[Reference][Reference]
[Reference][Reference]
[Reference]
The RC LSI communicates with the microcomputer by six pins of
pin26(CS), pin25(SCK), pin24(SDA0), pin23(SDA1), pin22(SDA2) and
pin21(SDA3).
The PR LSI communicates with the microcomputer by six pins of
pin58(CS), pin57(SCK), pin56(SDA0), pin55(SDA1), pin54(SDA2) and
pin53(SDA3).
The PP LSI communicates with the microcomputer by six pins of
pin41(CS), pin40(SCK), pin39(SDA0), pin38(SDA1), pin37(SDA2) and
pin36(SDA3).If the communication between LSI and the microcomputer is
abnormal, the abnormality of other item may be detected at the same time.
MEMORY
The details of check result for the communication between each
EEPROM and microcomputer are displayed.
080H: The communication between EEPROM of ES and microcom-
puter is abnormal.
040H: The communication between EEPROM of IF and microcomput-
er is abnormal.
020H: The communication between EEPROM of TG and microcom-
puter is abnormal.
010H: The communication between EEPROM of MB and microcom-
puter is abnormal.
[Reference][Reference]
[Reference][Reference]
[Reference]
The corresponding display for the data of each EEPROM on the service
menu becomes a blank column, when the EEPROM on the TG, IF, ES
and MB boards is abnormal.
2-12. Service Mode Operation