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Circuit Description
5-8. OPE PBA
OPE PBA consists of U300 (MICOM Z8601), LCD, key matrix, LED indicators, and the document detect and
scan position sensors. Refer to OPE Schematic Diagram and Wiring Diagram sections of this manual.
¥Signals from the key matrix and delivered to U300 X/Y input pin group (P1-X).
¥U300 pin 4 (RX DATA) is UART code to MAIN PBA.
¥Display from controller is received at U300 pin 5 (TX DATA).
¥LCD drive signals are U300 P2-X pin group, connector pin P303-1 ~ P303-3.
¥Machine status LED drive signals are U300 P01 pin group. (SF3000T only)
¥Connector P302 is NPO (No Power Operation) key matrix output.
Document
Detect
Sensor
Connector
5-18
MICOM
Z-8601
2
UART
Reset
Figure 5-11 OPE Block Diagram
11
LCD
16 x 1 lines
7
X
Key Matrix
8
Y
1 (SF3000T
LEDs
Only)
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