I found this about send the codes with hyperterminal:

"You can also use an old DOS trick to send particular ASCII values that may not have control-key equivalents. Hold down the Alt key and type the decimal ASCII value on the keyboard's numeric keypad (not the number keys along the top of the keyboard), then release Alt. Precede the number with a 0 (zero). For example, to send ASCII 133, press and hold Alt, type 0 1 3 3 on the keypad, then release Alt.

Don't leave out the 0 (zero) preceding the number! If you do, the actual value sent can be changed in odd ways. For example, ASCII 14 sent as Alt-down 1 4 Alt-up works fine, but ASCII 15 sent as Alt-down 1 5 Alt-up gets translated to ASCII 164.

The smart customer who pointed out the necessity of the leading zero speculates that it has to do with Windows' conversion of character codes to the DOS character set."

So try:

ALT key method above with these codes:

0131
069
017
0217