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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 fine, 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.