Randy the sq gate mod usually takes COS from Q18 the transistor that
does audio muting. (At front/middle of the card near JU10)
Its a general purpose NPN M9642, you can pull one from an old card or
probably try 2N3904 etc to get it going..not sure on the sub. You can
check the operation of this transistor with a VOM on jumper J10. This
should be around 12v sq'd and near 0v when unsquelched. You can also
check to see if the card's squelch circuit is working by checking
board pin 9 which should be about 8v sq'd and near 0v unsquelched.
G.L.
- Ron
VE1AIC
--- In Repeater-Builder@yahoogroups.com, "randy kisthardt"
<[EMAIL PROTECTED]> wrote:
> hello help please ive tried everthing
> I got hit by lighting and it came in on phone line.it took out my
> controller a acc rc-96.I had it hooked up via the squelch gate
card
> mod to a micor.(go in front of sq card for my signals with db 9
conn)
> its now disconnected but im having problems with the squlch gate
card
> it self.it was working fine i cant find the problem with it and
dont
> have a spair to try.
>
> the repeater works fine as long as i have it in pl decode mode
> when i put it in carrier mode (change jummpers in sq card) the
> repeater will key up and pass audio ok but when carrier and tone
> dissapers i still have audio (discrimater noise) untill the xmit
hang
> time goes away. its not bieing muted .allso i have local audio all
> the time noise out the speake and cant squlch it out i can turn the
> volume down but wont squlch out or mute out ever. but local works
> fine with card out pl or not using disable sw on station controll
> card everthing works right no noise from speaker unless i un squlch
> it. i have meters and a scope just point me in the right direction
> i tried to check the transistors on the card but they all look ok
> with meter may be i missing a signal or somthing on the input to
the
> card?
> thanks a lot
> randy AG4ZQ
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