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

Yeh i know but I want to be able to get Marine band TX in Australia it starts at 27.680 and goes up.

Anyone know how to open the TX up on the Kenwood TS-430 so It will TX on 27mhz..Cheers

Thanks Rick. I will get back to you with the voltages may be a few days though. Bit busy atm..Thanks again.

Hmmm I got a bit of a problem...the radio seem to be in the squelch mode.When I turn the RF gain down to about half half way it opens the squelch and the radio works fine and when the radio warms up(left on for a while) it seems to operate fine. The radio is still TX'ing and RX'ing but the squelch s...

Thanx Rick.

Thanx Rick I managed to get about 8 watts out of it..I'm happy with that,she's an old rig...I need to adjust the squelch on it ,whens its cold it seems that the squelch is on..after it warms up it RX's fine.can you tell me which pot adjusts the squelch...cant seem to find out which one it is. the PC...

Hey just a dumb question but how do i check L14 ...do I look for continuety or voltage .

Thanks Rick I will check L14......The radio is identical to the Kraco SSB Base..the woodgrain cover, two meters ect ....but it has the PLL02A cybenet single board. It is an Australian model.

Hello, I have an Electrophone SSB Base CB with the single board PLL02A.Board TP-S14-5. The problem is it has low TX power output on USB and LSB.AM is fine.When I talk, my watt meter says 2-4 watts out.When I whistle I get about 8 watts out.Is this a sign of final TR on its way out? The radio was pur...

Thanks Rick......and thanks for walking me through my problem.....It's hard to find help for CB in Australia as it has phased out a bit over here but there still are a heap of us that love the old radios.......Cheers buddy...

Thanks: Rick Redeye Ray Dave.

Glenn

FIXEDYou bloke are tops....The old girl is stable....BUT...She is a little off Frequency on AM, can someone tell me which pot will bring me back on freq ??Its only slightly off, just anough to have distorted modulation around the edges...

Thanks to all you guys who helped my.

Sorry mate been on holidays for easter....Yes the S/meter does move when RX a signal and moves when TX as well. I'll msg you back with the TR voltages......Thanks Rick

G'day Rick ....When I turn squelch knob up and down I can here the pop sound like normal. If I put my ear to the speaker on the radio I can faintly here sound....white noise.

I have tried PA and have got voice out in PA mode but it is distorted. Tested the PA speaker with another radio on PA, crystal clear audio out.

Let the radio idle for 10 min the audio chip is just warm.....I jumped the vol pot and didn't get volume..only scratchy static noise...when I turn the vol up & down I get the scrathy noise out of the speaker. I will try replacing the electro's around the Audio IC....

Hi rick, sorry for the delay in replying I have check the speaker its ok.I have plugged in an ext speaker as well.....I will try what you said..and get back to you once again thanks for your help..Glenn

Thanks Rick been away for a few days,will try replacing them,Thanks very much for your help.

Rick Although I have not recieved any advice from you yet,I have read alot of your posts to other guys with problems. I think your technical skills are a gold mine for us old radio nuts. I thank you very much for the skills I have picked up from reading other post that you have contributed to. I thi...

The Uniden AX144 is the same as the AR144 if this helps....The Audio chip get warm when TX'ing.... Any help out there please...

Thanks Glenn

Update: It has audio out in PA mode but not real clear...it could be the ext spk i'm using too..but It does have audio in PA.

Glenn

Hi ppl, I have a Uniden AX144,Board N# PC-833AE, PLL Chip D2824c. I turn the radio on after years of storage and it has no RX audio.It is TXing fine full power and output audio.It is RXing a signal but no audio is coming out. What I have dont so far: Check speaker, no change. Plugged in external spk...

Thanks Redeye I appriciate your feedback very much....and diagram

Thanks Uncle Ray did that but its still the same.RE: unlocking the clarifier I,m stuck on IC MB3756 cant seem to locate it.It,s says to solder the orange from clarifier to pin #3 on IC MB3756.......Just cant seem to locate th IC . There is a couple that I cant read becaue they are crampt in...Any id...

Thanks for the info Dave, It hasn't always been like this.It's been in storage for about 10 years.I pull it out and fired it up and it seems to have this problem. When I first used it after storage It TX'ed on freq and slowly went off,so I dragged it off freq a little so now at cold start it is off ...

It is a PC-412 board cant find any other number on it.

Just an update the RX is slowly drifting now....It like this: Turn the radio on when its cold and when I TX to another radio I'm slightly off frequency(about 11 o'clock on the receive radio) after a while it drifts back to 12 o'clock on the receive radio. The RX seems fine but ofter a while it too d...

Hi there I have a Cobra 148 GTL old model with the MB8719 chip.My problem with this radio is when she is cold it Tx's on frequency but as it warms up the TX slowly slides off freq.It only about 1kc but its really bugging me. The radio is stock and has a standard clarifier. Could someone help me in m...