Global Specialties PB-501 - Manual - Manual (Page 9)

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f. Leave wires connected.
6. LATCH TEST
a. Jumper CLOCK X to PB1. Jumper CLOCK Y to
PB2. A l l LEDs should be l i t .
b. Set switch "0" thru 3 to not OPEN. A ll LEDs
should be l i t . Press and release P B 1 ; "D0" thru
“D3” should go out.
c. Set switch 4 thru 7 to not OPEN. “D4”
through “D7” should s t i l l be l i t .
Press and release PB2; “D4” through “D7” should go out.
Remove CLOCK jumpers.
7. INPUT PORT TEST
a. Jumper ENABLE X to PB1.
Jumper ENABLE Y to PB2. A l l
LEDs should be out.
b. Set a ll 8 switches to OPEN. A l l LEDs
should s t i l l be out.
Press and hold PB1: "D0"
through “D3” should l i g h t .
Release PB1: "D0" through “D3” should go out.
P
ress and hold PB2: “D4” through “D7” should light.
Release PB2: “D4” through “D7” should g o out.
8. Turn POWER switch OFF: Unit should not function.
CHECKOUT COMPLETE