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Fixing Blown Power Amplifier?

 

So I could use some help from the group here:

My x5105 is only putting out about 0.8w of power, no matter what I do. I've pushed/set/adjusted the "Po" button a bunch of times, adjusted a bunch of options, and the output watts never changes. I tried a couple different swr/pwr meters, thinking maybe I had a bad unit, but both meters report outputs of less than 1 watt. Mode doesn't seem to matter: USB, CW, whatever - all are less than 1 watt.

I'm about 1 year + out of warranty, so have nothing to lose. My googling has taken me to reddit, where a guys says he has a broke power amplifier.



Any suggestions on how to fix this? I'm pretty much a noob at stuff, so have no idea where to start. I'd rather not bin a $600 radio if I don't have to....
riushr
 

What are you using as a load, antenna or dummy load? What is the SWR of whatever your feeding the output into?


On Thu, Aug 18, 2022 at 17:10, jhebeacon via groups.io
<jhebeacon@...> wrote:
So I could use some help from the group here:

My x5105 is only putting out about 0.8w of power, no matter what I do. I've pushed/set/adjusted the "Po" button a bunch of times, adjusted a bunch of options, and the output watts never changes. I tried a couple different swr/pwr meters, thinking maybe I had a bad unit, but both meters report outputs of less than 1 watt. Mode doesn't seem to matter: USB, CW, whatever - all are less than 1 watt.

I'm about 1 year + out of warranty, so have nothing to lose. My googling has taken me to reddit, where a guys says he has a broke power amplifier.



Any suggestions on how to fix this? I'm pretty much a noob at stuff, so have no idea where to start. I'd rather not bin a $600 radio if I don't have to....

 

¿ªÔÆÌåÓý

How do you know it¡¯s the final? I had one, same stuff going on. Disassembled it, one or two of my brass standoffs between the two boards were LOOSE. Google it and you¡¯ll see some folks have had Same

JP
KA3BWP?

On Aug 18, 2022, at 6:42 PM, riushr via groups.io <riushr@...> wrote:

?What are you using as a load, antenna or dummy load? What is the SWR of whatever your feeding the output into?


On Thu, Aug 18, 2022 at 17:10, jhebeacon via groups.io
<jhebeacon@...> wrote:
So I could use some help from the group here:

My x5105 is only putting out about 0.8w of power, no matter what I do. I've pushed/set/adjusted the "Po" button a bunch of times, adjusted a bunch of options, and the output watts never changes. I tried a couple different swr/pwr meters, thinking maybe I had a bad unit, but both meters report outputs of less than 1 watt. Mode doesn't seem to matter: USB, CW, whatever - all are less than 1 watt.

I'm about 1 year + out of warranty, so have nothing to lose. My googling has taken me to reddit, where a guys says he has a broke power amplifier.



Any suggestions on how to fix this? I'm pretty much a noob at stuff, so have no idea where to start. I'd rather not bin a $600 radio if I don't have to....

 

Also, it would be worth checking with Support at Radioddity, a Xiegu dealer.? They have a guy who seems quite familiar with the X5105 and its troubles.
--------
Doug, K8RFT
 

Antenna. 20m dipole, with SWR of about 1.03 (Using the internal tuner.) Unaided = ~1.8

What are you using as a load, antenna or dummy load? What is the SWR of whatever your feeding the output into?
 

I don't. I'm not much of an electronics guy, so I'm totally clueless. I just was making a guess based on some google-fu.

I wouldn't know what specifically to look for once I start tearing into it.?

How do you know it¡¯s the final? I had one, same stuff going on. Disassembled it, one or two of my brass standoffs between the two boards were LOOSE. Google it and you¡¯ll see some folks have had Same
JP
KA3BWP?
 

That's the outfit I purchased the radio from, but I'm about 18 months post-purchase. I guess I can give them a shout and see what happens.
 

On Fri, Aug 19, 2022 at 03:06 PM, <jhebeacon@...> wrote:
That's the outfit I purchased the radio from,
Even better - you're a customer.? That's where I bought my X5105 too.? They do have a service man who has been quite helpful for many customers.
And it's pretty easy to email them and ask.? And free, too!? Nothing to lose but a few minutes at your keyboard.
--------
Doug, K8RFT

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