6. SYSTEM MODE
EO18-33011
(Revision Date: Mar. 30, 2004)
6.4 SELF-DIAGNOSTIC TEST
6-11
(8)
DIP Switch Status
DIP SW 1: ON 2: OFF 3: OFF
NOTE: For details regarding the DIP Switch setting, refer to Section 2.6.
(9)
Expansion I/O Interface Check
EXP.I/O
OK
(10)
DIN Connector for the Keyboard (KB-80) Check
KEY BRD
OK
(11) Real Time Clock Battery Check
BATTERY OK
Loopback test
OK: The circuit has no problem.
NG: The circuit has a problem or loopback jig is not attached.
Expansion I/O PC board
OK: The connector has no problem.
NG: The connector has a problem or loopback jig is not attached.
DIN Connector for the KB-80 keyboard
1
2
3
4
5
6
7
8
DIN Connector: TCS7588-01-201
Pin 3 and Pin 4 are short-circuited.
Pin 5 and Pin 6 are short-circuited.
Connector: FCN-781P024-G/P
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300
Ω×
5
300
Ω
Vcc
GND
1 2 3 4 5 7 8 9 10 11
12 15 21
•
OK: The voltage is higher than about 2.4V, or the battery is
unconnected.
NG: The voltage is lower than about 2.4V.
Battery for the real time clock
