The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

Hi mate , go to this site

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3396

Google cb tricks and go to the radio section.

Argg !!! The original problem with this was NO TX NO RX. I replaced the PLL chip. Now I still have no tx ( relay clicks over etc ) and very very faint RX. The PLL is working as i can select channels. If I turn the volume up and inject a signal ( local signal ) the RX will come up ever so slightly. A...

Hope this works...

Far left hand side next to a solder joint with n/c pins underneath.

One other thing...have you ever suffered from freq drift ( only slightly ) with your radio ?
Will put up a foto soon.

Mate. As I have said I have the same radio...YES I know where it goes. I am on holidays from today. I will open up my radio and try TRY to copy your photo onto my computer and photoshop a circle around where it goes. I don't know much about photoshop and I dont have a digital camera ( :oops: )..But ...

Opps sorry.

Look for the " President Grant DX "...with the 8719 pll ( yes i know ours run the 145146 pll ).

Hi mate

I know this is not the exact diagram BUT it has helped me a lot when working on my superstar 3600 11z.
It is simular....good luck.

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3396

I too also run the 12v batteries in my realistic power mic. No worries and it sounds cool.
I pick mine up from the supermrkt for around $1.99. Just ask for the car remote alarm batteries.

Gday mate try this....


http://www.cbretards.com/cbpages/radiomods.htm

Will do Rick. Many thanks...

Hi ya Rick ! Thank you so much for your response. No I have not found a diagram YET. Just an update on the radio...I put a "clamping voltage " on the PD output of the 861 and low and behold it started working ( still unlocked at pll )...Im stumped at this tells me the VCO is working but th...

Hello Everyone. Just recently picked up one of these units ( 18 ch ssb ) The problem is no rec / tx . Can hear static / PLL is in Unlocked postition ( 861 chip ) getting around 5v at prog pins and around the chip. TX / RX light works ( ie it is switching ). Static is fairly loud ( not dull ) squelch...

Hello there , you might want to try :

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3396

It might help you...goodluck

uncle ray.

Hello there , you might want to try :

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3396

It might help you...goodluck

uncle ray.

I see the expert is back ??

I hope you're not having a go at me as I am certainly no expert.

Again thanks for your help Rick.

Yep Ricks the guy He certainly knows his stuff. Good one Rick cheers.

Hello there.. First up I would be checking the xtals for "dry joints" then the caps around the vco area. I have had problems with drift BUT after trial and error found a couple of cheap electrolitics leaking. Try re-soldering the xtals for a start. Goodluck , I appreciate how anoying it is...

:P Hey Rick , just wanted to write and tell you how i got on... First I replaced the "choke" and found that the radio was a little more stable. So I replaced the "cap" and now find the radio does NOT drift as much. Sure theres a little drift but NOT as bad. I have opened the clar...

many many thank you's Rick , I will try your advice...mate THANK YOU !!!!!!

Hey Rick sorry to hassle you but where should i be looking if i have DRIFT ( freq ) on LSB with this superstar ? It will drift a bit when it warms up ? any ideas..? If I put freeze spray near L28 ( ? ) it will go back ON freq. Really need some advice. Many thanks .Uncle Ray. ( Oh I tried to post thi...

Hey Rick sorry to hassle you but where should i be looking if i have DRIFT ( freq ) on LSB with this superstar ? It will drift a bit when it warms up ? any ideas..? If I put freeze spray near L28 ( ? ) it will go back ON freq. Really need some advice. Many thanks .Uncle Ray. ( Oh I tried to post thi...

Hey Rick sorry to hassle you but where should i be looking if i have DRIFT ( freq ) on LSB with this superstar ? It will drift a bit when it warms up ? any ideas..? If I put freeze spray near L28 ( ? ) it will go back ON freq. Really need some advice. Many thanks .Uncle Ray. ( Oh I tried to post thi...

Hi Rick. Mate don't take it personaly. I think that they're excited about geting their radio fixed.
I for one find your posts informative.
Do keep up the good work Ol' Boy.
Warm regards from the land of OZ.