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IWQ Series Service Manual
(5) Connector XJ4
•
RS-232C input/output
PIN No.
Signal code
Remarks
1
BUZ
OUT
2
DTR
OUT
3
RXD
IN
4
TXD
OUT
5
GND
6
NC
-
FG
All outputs are at the
TTL level.
(6) Program memory medium
•
Mask ROM 256 KB
(Re-writing or replacing is not permitted.)
4.2.3 A/D board P-933
(1) Major parts
•
Amplifier circuit (LC8000)
•
A/D converter (AD7714YR)
(2) Connector XJ1
•
Used for direct connection with the main
board.
Reference
Reference
Refer to “connector XJ2” of
the main board for PIN No.
and signal code.
(3) Connector XJ2
•
Load cell-connecting terminal with screws
•
Tools: 2.5 mm Phillips screwdriver, or
flatblade screwdriver for adjustment.
[Soldering side]
Terminal No.
Signal code
Wire color
Contents
1
R
VEX
Red
Cell 5V
2
W
GND
White
GND
3
G
IN+
Green
Input +
4
B
IN-
Blue
Input
−