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Conference hydra::amiga_v1

Title:	AMIGA NOTES
Notice:	Join us in the NEW conference - HYDRA::AMIGA_V2
Moderator:	HYDRA::MOORE

Created:	Sat Apr 26 1986
Last Modified:	Wed Feb 05 1992
Last Successful Update:	Fri Jun 06 1997
Number of topics:	5378
Total number of notes:	38326

112.0. "DF224 and OnLine! Problem" by AUTHOR::MACDONALD (CUP/ML) Mon Sep 22 1986 10:19

I have a problem. Perhaps someone out there has a solution?

I am using an Amiga with a Sony 1311 Monitor, a DEC DF224 "Scholar"
modem, and the Online! V1.27 telecommunications software. When everything
is hooked up and running, there is a loud tone in the speaker of the
Sony which increases and decreases with changes in the volume control.
It appears to be an audio signal fed directly into the monitor through
the serial port somehow. When I remove power from the modem, the sound
disappears.

o  Is it a modem problem?

o  Is it a cable problem with the serial port?

o  Is it an OnLine! software problem?

Of course, turning the volume down provides a cosmetic solution, but
also causes loss of the bell.

Any thoughts? Thanks.

Paul

T.R	Title	User	Personal Name	Date	Lines
112.1	BEEPPPPPP goes the cable	DEXTER::MELLITZ	Tazmanian Devil	`Mon Sep 22 1986 14:06`	8
	DON'T use a 25 pin cable to connect the DF224! The Amiga brings out non EIA voltages on that connector. I had to build my own cable with the bare minimum number of connection. I can't remember exactly what I hooked up. I just connected what made sense from EIA documentation. ... Good luck , Rich
112.2		JOKE::ACCIARDI		`Mon Sep 22 1986 15:35`	3
	Check the pinouts for the ports, they are published in the Amiga book that came with the system, but I forget which pages...Amiga puts +5 where the rest of the world doesn't!
112.3	The Manual tells	KIRK::KYZIVAT	Paul Kyzivat	`Mon Sep 22 1986 19:06`	6
	If you read the manual which comes with ONLINE! you will find a description of what kind of cable you need. I think it is pins 1-8,20,22. I bought an "Amiga to Hayes" cable at Omnitech in Tewksbury which seems to work ok although it only has (I believe) 1-8 and 20. Paul
112.4	Fixed It!	AUTHOR::MACDONALD	CUP/ML	`Mon Sep 22 1986 22:34`	7
	Problem was easily solved after reading the pin-outs for the Amiga. Apparently, they have an audio signal on pins 15 and 16. I just happened to have a pin 16 on my cable. Gave it a yank and now the modem works beautifully. Using OnLine! and 2400 baud right now! Paul;