Test 4 - keypad test – Gasboy 1000 Series FMS Diagnostic Manual User Manual
Page 82
Diagnostic Kit
03/07/03
5-7
Test 4 - Keypad Test
This test displays the information received from the keypad.
1.
Enter diagnostic mode as described previously. At the ENTER TEST 0-9 prompt, press 4
and ENTER.
2.
At the PRESS KEYS prompt, press each key except ENTER that you wish to test. The LCD
display shows the output of the key that was pressed.
3.
Press ENTER to stop testing keys and return to the ENTER TEST 0-9 prompt.
To exit from diagnostic mode, turn off the diagnostic switch at any point.
Test 5 - Communication Ports and External Wiring Test
This test verifies that the serial ports and external communication wiring are functioning properly.
1.
Enter diagnostic mode as described previously.
2.
Turn off the system power.
3.
Remove the port communication cable from the serial port 1 or serial port 2 connector on the
MPU board and replace it with the RS-422 loopback connector supplied in the diagnostic kit.
4.
Turn on the system power and wait 60 seconds.
5.
At the ENTER TEST 0-9 prompt, press 5 and ENTER.
6.
At the PORT 1 OR 2? prompt, press the number for the port being tested (1 or 2) and press
ENTER. If you press an incorrect number, press CLEAR to return to the PORT 1 OR 2?
prompt. The LCD displays PORT PASSED or PORT FAILED and the ENTER TEST 0-9
prompt reappears.
7.
Remove the loopback connector from serial port 1 or serial port 2 and replace the cable
removed in Step 3.
If testing of the external communication wiring is desired, continue with Step 8. If desired testing
is completed, exit from diagnostic mode.
8.
Remove the communication cable from the data terminal. Attach the RS-232 loopback
connector, supplied in the diagnostic kit, to the communication cable.
9.
At the ENTER TEST 0-9 prompt, press 5 and ENTER.
10. At the PORT 1 OR 2? prompt, press the number for the port being tested (1 or 2) and press
ENTER. If you press an incorrect number, press CLEAR to return to the PORT 1 OR 2?
prompt. The LCD displays PORT PASSED or PORT FAILED and the ENTER TEST 0-9
prompt reappears.
11. Remove the loopback connector from the communication cable and reconnect the cable to
the data terminal.
To exit from diagnostic mode, turn off the diagnostic switch at any point.