Those relays are switching in lo-pass filters for the transmitter.
The band-pass filters,for the receiver,
are switched in via diodes. I bet that
either a diode is bad, or the command is not getting to them.
Dave....
-----Original Message-----
From: T.Griffin <ei9btb@indigo.ie>
To: yaesu@contesting.com <yaesu@contesting.com>
To: <yaesu@contesting.com>
Date: Tuesday, August 24, 1999 5:05 PM
Subject: [Yaesu] Yaesu FT900
>
>Just purchased a Yaesu FT900 with a fault. When you reach 14.500 you
>hear a relay switching and the set goes dead until you reach 21.500 and
>again you hear a relay switching and the set becomes alive again.The
>display shows all the frequencies from 14.500 and 21.500 but keeps
>flashing.
>I will be obliged if someone can help on this problem.
>
>Tommy Griffin EI 9BTB
>
>
>--
>FAQ on WWW: http://www.qsl.net/k7on/yaesu.html
>Submissions: yaesu@contesting.com
>Administrative requests: yaesu-REQUEST@contesting.com
>Problems: owner-yaesu@contesting.com
>Search: http://www.contesting.com/km9p/search.htm
>
>
--
FAQ on WWW: http://www.qsl.net/k7on/yaesu.html
Submissions: yaesu@contesting.com
Administrative requests: yaesu-REQUEST@contesting.com
Problems: owner-yaesu@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|