[1000mp] PTT trouble 1000MP MV

[Mike Schatzberg]

Hello Denis:

Make sure that your MOX button is not depressed to the transmit position.

Unplug your microphone from the front panel connection, and any other keying 
circuit at the rear of the radio.  Meaning, no computer control for keying, 
etc.

Power the radio on with everything unplugged, and try again.  If the MOX 
button now operates the radio, you have a short in the microphone PTT or 
other computer issue.

73 and Happy DXing,

Mike
W2AJI
----- Original Message ----- 
From: "Denis Coolican" <coolican at telus.net>
To: <1000mp at mailman.qth.net>
Sent: Wednesday, March 25, 2009 4:18 AM
Subject: [1000mp] PTT trouble 1000MP MV


> All of a sudden the 1000MP MV rig does not key. Using the ptt switch on 
> the mic, grounding the ptt connector at the back of the rig, going to VoX, 
> using the key, or tunning to AM and keying the cct. causes nothing to 
> happen. The transmitter does not key.  Receive works OK.
>
> On the center pin of the PTT RCA jack at the rear of the rig the voltage 
> is 13 volts. Has anyone followed the cct through for the PTT function.  I 
> am just wondering if the microprocessor Q5008 just need a low on pin 17 to 
> operate.
>
> Denis ve6aq with ve6fi
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