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Article #1271Re: Internal Modem Problem - NO DIALTONE (analogue problem?)
From: ib
Date: Tue, 14 Oct 1997 00:00
Date: Tue, 14 Oct 1997 00:00
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In article <876818758snz@longley.demon.co.uk>, David Longley <David@longley.demon.co.uk> writes >I have an odd problem with an Internal V34 fax modem, a half >length, V1428VQH dynalink I think. > >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? > >Anyone prepared to have a look at the thing for me, or suggest >what it might be? I can't afford to get it repaird, these tyhings >too cheap for the labour costs these days - but it seems a shame >to junk it when all the digital side passes OK. Will pay postage >costs of course. A couple of months back I had a problem where my modem could not hold the line open. I had to leave a phone off hook with the secrecy button pressed in to get the modem to work. The electronics side of the modem was fine but the relay which takes the modem off-hook had failed so the exchange did not register that the modem had picked up (because it hadn't) so no dialtone. Got a replacment relay for a quid or so, ten minutes with a soldering iron and I was back on line. HTH -- Ian
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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: ib <ib@ianb4.demon.co.uk> Subject: Re: Internal Modem Problem - NO DIALTONE (analogue problem?) Date: 1997/10/14 Message-ID: <I84ZyJA127Q0EwbF@ianb4.demon.co.uk> X-Deja-AN: 280556572 Distribution: world X-NNTP-Posting-Host: ianb4.demon.co.uk [194.222.0.188] References: <876818758snz@longley.demon.co.uk> Organization: ian4n Newsgroups: sci.electronics.repair,demon.tech.pc,comp.periphs