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Appendix ii : synscan self-diagnosis – Sky-Watcher SynScan V3 Hand Controller User Manual

Page 44

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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 two “Loop-Test Plug” by referring to

Appendix 3

and the following instructions:

• Short the pin-5 (RX_TTL) and pin-6 (TX_TTL) of a RJ-45 plug.
• Short the pin-2 (TX_RS232C) and pin-5 (RX_RS232C) of a RJ-12 plug.

Here are the diagnosis steps:

1.

Insert the two “Loop-Test Plug” to the corresponding port of the SynScan hand control.

2.

Press “

2

” and “

5

” simultaneously and power on the hand control.

3.

The hand control will give a short beep and display “

SynScan B.I.T.

” for a short time.

4.

The LCD screen will become fully black and then fully clear for a while for the purpose of

checking the LCD display.

5.

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.

6.

If there is any problem on the mount port or no Loop-Test Plug connected to the mount port

(the RJ-45 outlet), the screen will display “

COM2 ERROR

”. Press

ENTER

to continue.

7.

If everything is fine, the testing will go to

Step 8

; Otherwise, the SynScan hand control will

show “

EEPROM ERROR

” or “

Flash ERROR

”. Press

ENTER

to continue in such case.

8.

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, and the hand control also beeps while the key is pressed.

• Power voltage and the temperature will be displayed on the bottom row of the screen.