Casio QT 6000 Service Manual - Page 43

] Rs232c Port Test, Com1, 2 = Com2

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[ 16 ] RS232C PORT test [Function] This is the RS232C test. The loop back test for RS232C port is performed by making the connection shown in the figure. Refer to [ 17 ] RS232C PORT batch test the figure for RS232C port connection. [Operation] Operation : x n 0 4 d ST x: Baud rate selection 0 = 2400 bps, 1 = 4800 bps, 2 = 9600 bps, 3 = 19.2 kbps, 7 = 115 kbps (COM 1 only) n: 0 = One time check (can be omitted) not 0 = Continuous check (To stop the test, press "ESC" key) d: Port selection 1 = COM1, 2 = COM2, 3 = COM3, 4 = COM4, 5 = COM5, 6 = COM6 [LCD] COM 41 RTS1=1 Ǟ CTS1=1 OK DTR1=1 Ǟ DSR1=1 OK DTR1=1 Ǟ CD1=1 OK DTR1=1 Ǟ CI1=1 OK RTS1=0 Ǟ CTS1=0 OK DTR1=0 Ǟ DSR1=0 OK DTR1=0 Ǟ CD1=0 OK DTR1=0 Ǟ CI1=0 OK TxD Ǟ RxD OK END 41 ǟ Displays only COM1 ǟ Displays only COM1 ǟ Displays only COM1 ǟ Displays only COM1 - 41 -

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— 41 —
[ 16 ] RS232C PORT test
[Function]
This is the RS232C test.
The loop back test for RS232C port is performed by making the connection shown in the figure.
Refer to [ 17 ] RS232C PORT batch test the figure for RS232C port connection.
[Operation]
Operation :
x
n
0
4
d
ST
x:
Baud rate selection
0 = 2400 bps, 1 = 4800 bps, 2 = 9600 bps, 3 = 19.2 kbps, 7 = 115 kbps (COM 1 only)
n:
0 = One time check (can be omitted)
not 0 = Continuous check (To stop the test, press "ESC" key)
d:
Port selection
1 = COM1, 2 = COM2, 3 = COM3, 4 = COM4, 5 = COM5, 6 = COM6
[LCD]
COM
41
RTS1=1
±
CTS1=1
OK
DTR1=1
±
DSR1=1
OK
DTR1=1
±
CD1=1
OK
DTR1=1
±
CI1=1
OK
RTS1=0
±
CTS1=0
OK
DTR1=0
±
DSR1=0
OK
DTR1=0
±
CD1=0
OK
DTR1=0
±
CI1=0
OK
TxD
±
RxD
OK
END
41
²
Displays only COM1
²
Displays only COM1
²
Displays only COM1
²
Displays only COM1