On 21 Oct 2005 12:55:26 -0700, put finger to
keyboard and composed:

Ambient Ham chipset Modem ATI diagnostics OK.Disabled 'wait for dial
tone' and It dials but it cannot connect and after that it just
'arrests' the line; tried at&t1 in Hyper terminal-modem 'connects' at
115200 and spits some characters,

The AT&Tn commands test the data path to the DSP. They are not really
helpful when troubleshooting a DAA fault such as yours.

ath/h1 ok; checked line-around 50
volts but when modem plugged in, it goes to 13v,

If you are measuring 13V on both sides of the relay contacts, then the
relay is stuck.

desoldered MOV is ok
but low resistance measured at it's modem board contacts;bridge output
goes to darlington...?;

Yes, that's the loop current stabilisation circuit, or whatever it is
called. It would be on the host side of the relay contacts. If you are
measuring any voltage there, then the relay is stuck.

as mentioned-in or out of the PC when I plug in
the line first you can hear the dial tone &then after 1-2 min. modem is
holding the line

Change the relay, or at least desolder it.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.