Global Specialties PB-501 - Manual - Manual (Page 8)

8
PB-501 CHECKOUT PROCEDURE
1. Install 4 “C” Cell batteries in accordance with the orientation indicated on the
battery holder. If the optional Power Adapter is being used, plug into “J1”, and
then to the wall outlet. Turn Power Switch to
the “On” position and check for +5V
between the “+5” and “GND” on the interconnect socket.
User may also supply +5V for Trainer operation by performing the following:
a. Remove batteries and power adapter.
b. Install jumper between J2 & J3.
c. Connect user power s
upply to a 1/8” phone plug with positive at tip of plug.
d. Adjust user supply input voltage to +5VDC +/- 5%.
e. Plug user supply to J1.
2. Connect Oscilloscope to the “clock out” pin on the interconnect socket. Verify the
following:
a. Frequency
– 500Hz to 1500Hz
b. Amplitude
– 4V to 5.5VDC
c. Duty Cycle – 40% to 60%
3. Logic Indicator Check:
a. All 8 LEDs should be off.
b. Jumper L0-A to Logic 1 on the interconnect socket
c.
“DO” should light up, all others should be off.
d. Move jumper to L1 -B
e. D1 should light up, all others should be off.
f. Test remaining signals, L2-C through L7-G in same fashion.
4. Pulsers Check:
a. Jumper L0-A to PB1.
b.
“DO” should light when PB1 is depressed.
c. Move jumper to PB1.
d.
“DO” should go out when PB1 is pressed.
e. Checkout PB2 in same fashion.
5. Logic Switch Check: ***DO NOT USE GRAPHITE PENCIL TO MOVE
SWITCHES***
a. Jumper L0-A to S0-A
b.
Set switch “0” so that “D)” is lit. This is defined as the “OPEN” position.
c. Set all 8 switches to OPEN.
d. Jumper all 8 indicators, L0-A through L7-H to corresponding switches SO-A
through S&-H. Each LED should light up upon connection.
e. Move each switch to NOT OPEN, and then to OPEN, noting that only the
corresponding LED went out.