XPR Low power XPR6350

[Pepe1984]

I'll preface this by saying I have been repairing XPR 6 and 7 series radios for the past year as an amateur repair tech. Mostly swapping parts like channel and volume pots.
I've been getting low power readings (sub 3w) on my service monitor on a large batch of radios. Since I'm new to this type of work I'm not exactly sure where to look besides the obvious.
Batteries are good, battery contacts and all connections points are solid. RF jack, volume pot, channel encoders have all been replaced.
Firmware is upgraded and radios are all functional, just low power.
I'm worried about sending them back to a facility and having them not work properly because of this issue.

any insight to an amateur repair tech would be greatly appreciated.

 

[K2NEC]

So considering it's on a large number of radios, is it possible that all of those radios are programmed for low power operation in the CPS?

 

[a417]

So considering it's on a large number of radios, is it possible that all of those radios are programmed for low power operation in the CPS?

The issue could also be your test set. If you can verify on separate hardware, you would be verifying that the problem is them, and not you.

 

[Pepe1984]

So considering it's on a large number of radios, is it possible that all of those radios are programmed for low power operation in the CPS?

Good thinking! I should have clarified that they are all from different facilities. I'm just running into the problem more and more. They do have the buttons set for swapping to "low power" mode, but that does not seem to be the issue.

 

[Pepe1984]

The issue could also be your test set. If you can verify on separate hardware, you would be verifying that the problem is them, and not you.

While that could be a possibility, I think it would be unlikely as my equipment was just recently tuned and seems to be in working order. I'm in kind of a weird spot because most repair technicians wont want to give information regarding repair techniques as it takes business away from them. So I'm kind of stuck looking for answers everywhere I can.

 

[APX7500X2]

Are you testing in analog or Digital? A friend of mine told me if you test TDMA radios in digital on the service monitor its shows all kinds of weird power...Just a thought

 

[a417]

While that could be a possibility, I think it would be unlikely as my equipment was just recently tuned and seems to be in working order. I'm in

Verify. Using that same logic is like saying your car "can't break again because you just had it fixed". Then you can start looking elsewhere.

 

[Pepe1984]

Verify. Using that same logic is like saying your car "can't break again because you just had it fixed". Then you can start looking elsewhere.

Thank you for your feedback. I tested these radios on a friends equipment as well. Same results.

 

[Pepe1984]

Are you testing in analog or Digital? A friend of mine told me if you test TDMA radios in digital on the service monitor its shows all kinds of weird power...Just a thought

That's good advice. I've tested in both analog and digital with my equipment and with a friend's. Both have the same results. I have a contact that works for motorola and he's trying to squeeze some info out of the techs there. If I get any from them I'll share it here.