METRON QA-1290, User & Service Manual, Page: 48 / 65

8 PA6 O SHREG_LATCH HC595 latch signal
9 PA7 I/O STEP_CNT Step motor, step return
10 PA2 I MISO SPI data in
11 PD4 I/O SHREG_ENABLE- Enable output driver
12 PD5 I/O STEP_DIR Step motor, direction
13 GND ---
14 GND ---
15 GND ---
16 GND ---
* Pin 3 on J60 on processor board is changed from +5V to signal
STEP-. This signal is taken from UART U1300 pin 13 on proc-
essor board.
5. Power to Processor Board
Pin out:
Pin description:
Pin no: Signal
1 +12
2 +5
3 +5
4 GND
5 GND
6 ÷12
6. Power to QA-1290 Board
Pin out:
Pin description:
Pin no: Signal
1 +24V in
2 GND
3 +5V in
4 GND
8-8