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

This is a great site as well but in northern ireland cb radio is making a comeback so hopefully it will get busy again many thanks for replying

This is a great site as well but in northern ireland cb radio is making a comeback so hopefully it will get busy again many thanks for relaying

Iv looked through this forum and it seems like no one is replying any more I just want to know is this a dead site

Hi has anyone have the schematic for a teaberry stocker 9 ix? there is a voltage requlator in this set that isn't factory, its right beside the audio ic, even if someone could possibly give me the number of this component so I can return this set back to factory many thanks for any help

hi can anyone tell me how to change the n/b switch to set the rig up for zeros exp 27.560 it would be a lot better that using the kc jump switch regards philip

Radio Make and Model: intek m550 power
PCB Number:
PLL Number:
Test gear available:
Symptoms: echo is to fast

What is working:

What has been tried: radio works good

Did it suddenly happen ?:
Anything else that may be of help?: the radio works well but the echo is to fast, people does not ...

yes i do have a small 12v battery charger on this battery and this battery is for a diesel car so the ampage is more than enough for this burner,,i am thinkin maybe i am putting to much power into this burner, but my set only puts out 6 watts on ssb which should be low enough to drive this burner ...

How are you animal, at the minute i am using a car battery to power my amp and my swr is at a 1.2 without it and 1.4 with it , but i have been getting bad reports with it, not sure whats going on with it i had to fix a risister in it one day when the legs of it came free of the pcb but snice it has ...

Sorry for that, but checkout these two things and then you see more. If the diodes are blown there is a reason, but you can experimentally exchange them with 1N4148 or 1N4001. Then you can make more messurments, before trying to geht those MV1Y, which will be hard to find... thats ok joerg but i ...

Hi,

must say, I don't know the ar 3500, just read the shematic I found on the web. The SB 754 (Q35) must be a big one, screwed to the chassis with the upper edges cut off at 45 degrees. Normally it is not very far away from your power-inlet. I it is the one, you can change it to the higher-rated ...

it was the dealers seal from 1992 when this set was new and it is the 30 watt set thanks for your help but you were right about the set being at a low setting i turned up the ssb mod vr and now i am putting out 10 watts which is good for me then i can still use my 200 watt linear which can only ...

it was the dealers seal from 1992 when this set was new and it is the 30 watt set thanks for your help but you were right about the set being at a low setting i turned up the ssb mod vr and now i am putting out 10 watts which is good for me then i can still use my 200 watt linear which can only take ...

Radio Make and Model: ranger ar 3500
PCB Number:
PLL Number:
Test gear available: test meter dummy load power meter
Symptoms:

What is working: thew set is good in every other way

What has been tried: nothing yet the lid has never been off this set

Did it suddenly happen ?: always was like this ...

hope everyone will have a good year and happy cbing

zodiac wrote:Philip,
This might help you put it back on frequency but only if you have a 7 digit counter.

oh dear i have a 6 digit counter and i am still not sure dave is it vr 6 or does all these parts need adjusted to bring it back on freq many thanks for your help philip

Radio Make and Model: stalker 9 dx
PCB Number: pc-893aa
PLL Number:
Test gear available: test meter, freq counter, dummy load
Symptoms:

What is working: everything works 100%

What has been tried: nothing yet

Did it suddenly happen ?: always was like this
Anything else that may be of help?: my ...

zodiac wrote:Phil,
You have a PM.
Dave.

thanks dave ill check it out now

I have a Predator 10k antenna mounted (Breedlove mount) to the front bed rail of my Ford F250 pickup. Cannot get it tuned below the red; always above 3, on all channels. Continuity tests are ok. Using Galaxy 959 radio, tuned.
Any recommendations? How can I be certain the antenna mount is grounded ...

These are the voltages on the audio chip pins starting at the back of the radio in FM mode.
13.5
12.3
7.0
0.9
2.11
2.9
0.9 i done those checks and mine does not look the same, and the sq does nothing when you turn the switch up
13.7
12.4
4.85
0.02
5.76
7.21
4.54
i think going with these checks ...

this is one of the best sites i have seen, and i log on every day and i will keep posting on until i cant type anymore its a great place to hang out and get your cb radio troubles fixed , whoever made this site up is brill =D> AND EVERYONE KEEP POSTING TO KEEP IT GOING so that people in the future ...

I GOT THIS AMP SECONDHAND but it seems to distort the modulation when i am using it on ssb i am getting bad reports with it switched on, when i first got this amp i was using it on fm ( i forgot to switch amp off after dxing on ssb) and the resistor (R9) melted the solder and one leg off the ...

These are the voltages on the audio chip pins starting at the back of the radio in FM mode.
13.5
12.3
7.0
0.9
2.11
2.9
0.9 i done those checks and mine does not look the same, and the sq does nothing when you turn the switch up
13.7
12.4
4.85
0.02
5.76
7.21
4.54
i think going with these checks ...

zodiac wrote:Yes it would mute the audio.

was wondering if there was a part where i could disconnect the sq just to see if it was it, thats causeing my trouble .thanks philip.

Yes,
It's on the schematic above, UPC1182H. Thanks dave i should had seen that :doh: many thanks philip hi dave i have just noticed that i have power to the speaker 0.07v and when i switch the rig on; the speaker sounds as it would when i power up the rig, would a squelch malfuncion cut the audio ...

zodiac wrote:Yes,
It's on the schematic above, UPC1182H.

Thanks dave i should had seen that many thanks philip

If you have any problems getting a new audio chip KCB (Knights)in the UK have them.
That's what happens when the radios been cross poled as well, It's the first IC to go pop when the idiot diode fails.
Dave. yes the diode at the back of the set is blown and some guy has solderd a replacement onto ...

If you have any problems getting a new audio chip KCB (Knights)in the UK have them.
That's what happens when the radios been cross poled as well, It's the first IC to go pop when the idiot diode fails.
Dave. yes the diode at the back of the set is blown and some guy has solderd a replacement onto ...

Does the audio work on PA ?.
If not then check C159, 10v @330uF and C161, 10v @47uF, better still change both for 16v capacitors at the same uF value. IC507 is the audio chip.
Dave.
ST9 FDX audio.JPG
Thanks very much for your help) i done those checks c159 and c161 all checks out, i done checks ...

Radio Make and Model: stalker 9 dx
PCB Number: pc-893aa
PLL Number: not sure can find it on set
Test gear available: test meter
Symptoms: no sound from the speaker

What is working: everything checks out

What has been tried: done some circit tests

Did it suddenly happen ?: yes when i was talking ...