User`s guide

Frequent problems:
1. There is no free COM serial port connector available on the PC
•
The PC must have one free serial port for connecting the cable: COM 1...8. The COM port is also called as standard
serial port. This port is used by the old mouse, external modem and other devices and programs communicating
across a serial line. So does the DD-Link as well.
•
COM (serial) port of the computer is a 25 or 9 pole big D letter formed socket on the back wall of the computer,
connected to a communication card inside the machine.
•
If you have no free COM port, then remove modem cable or connector of another equipment from the port being
engaged. You can employ another serial communication (COM) card.
•
If there is only USB port (Universal Serial Bus) in your PC, it is necessary to employ the serial communication
(COM) card. If you have a notebook, then in addition you can employ an USB to COM converter only, or PCMCA-
COM card.
2. The computer cannot find the cable
◊
The program requests DD-Link cable after starting menu points Communication  Receive, Send,
Synchronize, Backup save, Restore.
◊
The text DD-Link or CASIO is not written to any of the COM ports after cable detection in the window
Options  Communication parameters (Free, None, Reserved, Internal device, etc.).
•
If the Your unit is PV type, the CASIO text only in case will be visible at the COM port in the Communication
parameters window, if you click to the ”Cable detection” button!
•
Connect the cable to the COM (Serial) port, and check the connection. If there is another COM port on the PC,
connect the cable there.
•
If the words "None" or "Error" are displayed at the COM ports, they should be enabled at the communication
board. This can be performed in the Bios Setup program in case of ports integrated in the base board (Bios Setup can
be approached by pressing Del key during the starting procedure of PC). The older, separate boards can be enabled
by rejumpering, supposing there is a description on the communication board.
•
Under Windows 95, 98, 2000, NT, MN look the COM and LPT ports menuitem up in Start icon

Settings

Control panel

System window, and check whether exclamation mark exists next to the COM port. If visible, then
examine this COM port (click on it), and clear the problem indicated.
•
If the words "Internal device" or "Reserved or None" are displayed at the COM ports, probably the port is
reserved by some other internal device, therefore such devices have to be installed and setup that if possible keep
the COM1, COM3 port with IRQ4 IT, or COM2, COM4 port with IRQ3 IT. It is practical the card device to be
jumpered to IRQ5 or IRQ7 interrupt and the COM3 or COM4 port.
•
If there was a device installed to the COM port before DD-Link e.g. mouse, modem or other link cable (Nokia
phone, handled PC, PDA), then driver of this equipment must be removed: write the word REM before the driver
program in the files Autoexec.bat or Config.sys - e.g. REM mouse.sys and restart the machine. Under Windows 95
or latter version look for small icon in the right corner of Taskbar, and if the above COM driver program exists, it
must be removed by right button click of mouse to the icon, and select the close or other remover menuitem. For
final removing the Start icon

Settings

Control panel

Add/Remove programs utility can be used.
•
If the word "Free" appears at the COM ports, it means that the cable connecting the (not ATX) motherboard (or
communication card) and the back wall connector is broken or is connected inversely to motherboard or the binding-
in system of this cable different from the motherboard connector or maybe the link cable connector is not connected
properly.
•
If the Your cable is 3.5 Jack plug and not include electronic circuit (that is not DD-Link 3.5 Jack cable), can be
happened that the PC not find the CASIO because of different signal level. The signal level of the SF-...SY units
smaller than of PC (3V < 12V) and because of this the signal of CASIO die away in the insensitive PC. The only
resort for this problem the use of DD-Link 3.5 Jack cable, which include electronic circuit.
(http://web.interware.hu/pclink/addlkab.html).
•
If the problem cannot be solved in no way, try the DD-Link or other PC-link cable and cradle with another PC.
3. An error message is issued in PC or CASIO after starting data communication
◊
Though the PC finds the cable (the words „DD-Link” or „Casio” are displayed beside one of the COM ports
in the window Options  Data communication parameters), the data communication does not work.
◊
The CASIO issues Transmit Error, Communication Error , or the PC issues a Data communication error
message.
•
Turn CASIO on and set it at receiving or sending only after the window Receive…, Send…, Synchronize…, Backup
save… or Restore… is started in the PC.
•
Make sure the Jack connector put in the CASIO SF-... is connected well. Repeated problem, that this connector is not
put to totally clash, because it get stuck in the final 1 mm, with a sort of totally connection feeling. Although still
stands out about 1 mm. In this case you have to turn over the SF-… unit to come the connector into better view, then
must be push with bigger power, while the clearance/gap fully disappears between the root of the connector and the
unit.