"Gary Poland" <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Dave,
I don't know how long you have had the Twins or what you do or don't know
about them so here goes ...
The R-4C FUNCTION switch has to be in EXT MUTE. The MUTE rca jack on the
back of the R-4C is normally shorted to ground to put the R-4C into
operation either with a shorted RCA plug or through the mute cable going to
the T-4XC. There is a normally grounded relay contact within the T-4XC that
connects to its MUTE jack. With nothing installed into the R-4C MUTE jack
and the FUNCTION switch in EXT MUTE, the receiver should be in standby.
Shorting the MUTE jack to ground should then put the R-4C into receive. To
check the T-4XC place an ohm meter into the T-4XC MUTE jack and check
continuity to ground. The MUTE jack should go from zero ohms to open when
the T-4XC is keyed with the mic or placed in TUNE.
Also check to see that the mute jack on the R-4C has not been jumpered to
ground inside the chassis. I have seen this done before when the R-4C was
used alone.
73, Gary W8PU
http://home.cinci.rr.com/w8pu
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