AVS Special Member
Join Date: Jan 2005
Location: Montreal, Canada
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Use the regular serial cable with null-modem adapter (pins 2/3 and 7/8 will be swapped as required). You seem to have the correct settings (including RTS/CTS flow control). You need to check that the cable/adapter combination is working by testing both of them together with another device (you can just connect two PC serial ports together and send data with Hyperterminal).
I presume you have the 1700 turned on (because it may not respond to RS-232 commands when in standby, that depends on a setting in the advanced setup menu).
If you connect the 1700 to the PC, run Hyperterminal with the proper settings, then simply change the volume on the 1700 (with the remote or the master volume knob), you should see feedback from the 1700 without even having to send any commands.
I don't really have any other ideas, but testing the cable/adapter combo is important.