No key up

[skybolt58]

I just was given this 2510, the recieve works great, but there is no key up NOTTA nothing when mic keyed, also nothing when jumping pins 2 & 3 which I found out was the Xmit. or 1& 2 or 1 & 3. not even a tx light nothing.. any Ideas?


Thanks

 

[Wire Weasel]

Lotsa times it is the Key Up Transistor that fails in radios. One of the little small 3 legged black moon shaped things. Don't ask me which one it is in a 2510. Someone else here will know.

Good luck

 

[skybolt58]

I sure would like to know what one that is. Hope it is something simple like that, but when I key up it don't even close the recieve, it still recieves when I key up ot cross the mic pins... I know what pins 4 & 5 Does! channels..

Please help

 

[mr_fx]

hit the TX button on the radio

 

[skybolt58]

Done that already

hit the TX button on the radio

Done that, same thing still recieves when pushed..and no tx

Thanks

 

[mr_fx]

not good

 

[skybolt58]

not good

OK all I need to know, its in the dumpser now. thanks

 

[mr_fx]

have you tried all modes? AM? FM? LSB? USB?

 

[skybolt58]

have you tried all modes? AM? FM? LSB? USB?

yes I tried them all.. even CW. JUNK I guess

 

[dragracer]

Like that was mentioned,.... the transmit transistor....

 

[skybolt58]

Like that was mentioned,.... the transmit transistor....

what is the TX Transistor Q number?

 

[Robb]

Impatience and radio doesn't mix well. It is a decent radio that is worth getting fixed. Send it to a shop, like Roger Bird if you can't fix it yourself. He is 'da man' when it comes to these radios.
http://rogerbird.tripod.com/

If you want to look at the schematic and figure out where the keying transistor is, here is the Service manual & Schematic link:
Uniden HR2510 Service Manual

 

[skybolt58]

Radio is gone, thanks for everyones help!