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8) RS232 port check
This test will check the RS232 port. Connect the loop back connector before operate this check.
Operation :
X
2
m
7
#2 Key
Function
m: 0= One time loop check
1= Loop check continuously
2= One time loop check (Ignore the CD,CI signals. Only COM1 port)
3= Loop check continuously (Ignore the CD,CI signals. Only COM1 port)
X: 0= COM1
Test details
1) Check of the control shignals (CTS,DSR,RTS,DTR,CD,CI) Low/High level.
2) Sending data (0A5h) from Txd line and receiving data from Rxd line.
[PRINT]
[DISPLAY]
LOOP BACK CONNECTOR (D-SUB9pin Female)
COM1
TxD
RxD
CTS
RTS
DTR
DSR
CD
CI
NOTE: Error code is as follows:
01= Framing error
02= Over run error
04= Parity error
40= Data error (Not 55)
80= Time out error
3pin
2pin
8pin
7pin
4pin
6pin
1pin
9pin
Содержание CE-6800
Страница 5: ...3 2 BLOCK DIAGRAM 2 1 PCB CONNECTION...
Страница 31: ...29 5 HIN211CA T 7 LC7932M TE R 6 HY628100ALLG 70...
Страница 33: ...31 9 LM2576HVT 5 0LB03 10 MTA001M F4101...
Страница 35: ...33 15 SN74LV00APWR 16 SN74LV02APWR 14 SN74HC27PWR 17 SN74LV08APWR...
Страница 36: ...34 18 SN74LV138APWR 19 SN74LV139APWR...
Страница 37: ...35 20 SN74LV165APWR...
Страница 38: ...36 21 SN74LV165APWR 22 SN74LV174APWR...
Страница 39: ...37 23 SN74LV32APWR 24 SN74LV74APWR...
Страница 40: ...38 7 PCB LAYOUT MAIN PCB Front side...
Страница 41: ...39 MAIN PCB Back side...
Страница 43: ...41 CASIO COMPUTER CO LTD CE 6800 EX 475P Model Name SYSTEM BLOCK DIAGRAM Drawing No E140329P...
Страница 44: ...42 42...
Страница 45: ...43 RAM3 and RAM4 are option For CE6800 the Flash ROM2 is not used...
Страница 46: ...44...
Страница 47: ...45...
Страница 48: ...46...
Страница 49: ...47 DRW3 and DRW4 are not used...
Страница 50: ...48...
Страница 51: ...49...
Страница 52: ...50...
Страница 53: ...51...
Страница 54: ...52...
Страница 55: ...53 Voltage selector is not used for CE 6800...
Страница 56: ...54...
Страница 57: ...55...
Страница 72: ...70 13 DRAWER DL 2771...