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IGB/IGX Series (Overseas Specifications) Service Manual
(4) Connector
XJ3
This connector is not used.
Pin No.
Signal Name
1 Buzzer
2 DTR
3 RxD
4 TxD
5 GND
6 FG
(5) Program Memory Media
Mask ROM 256KB (Writing or replacement is not possible)
There is no compatibility between the IGB Series main board (PS-018) and the IGX Series
main board (PS-016); However, basic operations are same for these models.
3.2.3 Power Board (PS-019)
2
1
CN2
+
−
GND
Jack
Batteries
Jack center
−
PS-019
CN3
To m ain board
1
2
When the DC plug of the AC adapter is inserted into the DC jack, the battery GND will be interrupted.
