User guide

44
APPENDIX II : SYNSCAN SELF-DIAGNOSIS
The SynScan hand control contains a built-in self-diagnosis program. To run a full test, users
should prepare a “Loop-Test Plug” by referring to Appendix 3 and the following instructions:
• Short the pin-2 (TX_RS232C) and pin-5 (RX_RS232C) of a RJ-12 plug.
Here are the diagnosis steps:
1. Insert the “Loop-Test Plug” to the RJ-12 port of the SynScan hand control.
2. Press “2” and “5” simultaneously and power on the hand control.
3. The hand control will display “SynScan B.I.T.” for a short time.
4. The LCD will display “LCD CONTRAST x-yy“, press ENTER button to continue.
5. The LCD screen will become fully black and then fully clear for a while for the purpose of
checking the LCD display.
6. If there is any problem for the RS-232C function on multi-purpose port (the RJ-12 outlet)
or no Loop-Test Plug connected to the multi-purpose port, the screen will display “COM1
ERROR”. Press ENTER to continue.
7. Ignore “COM2 ERROR” message and press ENTER to continue.
8. If everything is ne, the testing will go to Step 9; Otherwise, the SynScan hand control will
show “EEPROM ERROR” or “Flash ERROR”. Press ENTER to continue in such case.
9. Check keypad and other features:
• The screen will display “Key=” in the top row. If a key is pressed, the name of the key
will be displayed.
• The power voltage will be displayed on the bottom row of the screen.