Cobra25 carrier balance

[dxing440]

Searched all the net, found nothin on carrier balance. Ch1 has a carrier of 3/4W, Ch15 has 1 1/4W, Ch25 has 1 3/4W, Ch40 has 2 1/4W. Have done the swing mod ( 100ohm resistor, 35v-470uf) vr5 (not maxed out), only till forward mod gain stops showing.

 

[sonoma]

if you messed with L18 it can throw the power balance off like this.you need to peak the radio output before you do the cap and resister mod. did you adjust L18 with a scope as it says to do?

go to cbtricks.com to check for the service manual to peak the radio

 

[dxing440]

No just the vr5 and cap, resistor mod. Before cap and resis, carrier was 4w,
Ch1-40. I've done these same mods to other 25's with no problems.

 

[unit_399]

Give it a complete alignment. Especially the VCO section. That's where the problem is.

- 399

 

[dxing440]

Ok thx for the info

 

[sonoma]

I agree with unit 399 it needs to be aligned properly. hopefully you have the equipment to do this.

 

[Z-MAN 369]

I think the slug was messed with, on a 29 its L14 fake ghost watts. If its L18 on a 25, just turn it back in till you see 15w-18w?