Article View: sci.electronics.repair
Article #1264Re: Internal Modem Problem - NO DIALTONE (analogue problem?)
From: David Longley
Date: Sat, 18 Oct 1997 00:00
Date: Sat, 18 Oct 1997 00:00
41 lines
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2544 bytes
In article <877106093snz@inf-eden.demon.co.uk>
News@inf-eden.demon.co.uk "Chris Kennington" writes:
> In article <876818758snz@longley.demon.co.uk>
> David@longley.demon.co.uk "David Longley" writes:
>
> "The modem is recognized by the PC in DOS, and responds to AT
> "commands with OK and passes diagnostics. The problem is that it
> "never picks up the line and always responds with NO DIALTONE.
> "
> "I've swapped leads and suspect a problem in the analogue side of
> "the board, maybe a relay?
>
> Well, David, after reading the other posts, you can easily
> tell if it is a dialtone problem or something more deep-seated by
> setting it to blind-dial .....
>
> Also, set it to "speaker always on" and report on the noises
> heard!
>
> Presumably you are aware that dialtones vary widely across the
> world? In many places (such as my friends in Nepal),
> blind-dialling is de rigueur.
>
> Chris
> --
> Chris Kennington (in news-reader mode)
> Reply to me as "cjk <at> inf-eden.demon.co.uk", replacing the <at>
>
>
I'm pretty sure its a bad relay or transformer on the analogue
side. I need these components but don't know where to get them -
anyone got a dead (on the digital side) 1428VQH?
--
David Longley (check end reply line #)
Longley Consulting London, UK
Behaviour Assessment & Profiling Technology,
Research, Data Analysis and Training Services,
Small IT Systems http://www.longley.demon.co.uk
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10c6a1,ff0d73fc84201cca X-Google-Attributes: gid10c6a1,public X-Google-Thread: 1036bc,ff0d73fc84201cca X-Google-Attributes: gid1036bc,public X-Google-Thread: 1131b0,ff0d73fc84201cca X-Google-Attributes: gid1131b0,public From: David@longley.demon.co.uk (David Longley) Subject: Re: Internal Modem Problem - NO DIALTONE (analogue problem?) Date: 1997/10/18 Message-ID: <877171630snz@longley.demon.co.uk> X-Deja-AN: 281480240 References: <876818758snz@longley.demon.co.uk> <877106093snz@inf-eden.demon.co.uk> X-Mail2News-Path: longley.demon.co.uk Reply-To: David@longley.demon.co.uk# X-Mail2News-User: David@longley.demon.co.uk X-Complaints-To: abuse@demon.net X-Trace: mail2news.demon.co.uk 877172526 9924 David longley.demon.co.uk Organization: Relational Technology Newsgroups: sci.electronics.repair,demon.tech.pc,comp.periphs