Hi all,

I’ve just bought used YCCC SO2R+ box. Successfully installed all the needed software, virt com ports etc. The box work properly with N1MM. Keying both radios and switching focus. The only thing I have problem with is right side audio in headphones. On left side I can hear left radio, right radio and both. On right side can hear nothing… Already checked phone plug, did some eye inspection of the board, resoldered bad looking connections on the board and stil no audio in right ear.
Next I’m going to go through the audio path checking all the elemnts etc. but before that I would like to ask a question here. Maybe any of you had the same problem before. Maybe it is some well know problem or any of you have some sugestions?

Would be much appreciated for any help.
Cezar, SP5 Y

Hi all,

I’ve just bought used YCCC SO2R+ box. Successfully installed all the needed software, virt com ports etc. The box work properly with N1MM. Keying both radios and switching focus. The only thing I have problem with is right side audio in headphones. On left side I can hear left radio, right radio and both. On right side can hear nothing… Already checked phone plug, did some eye inspection of the board, resoldered bad looking connections on the board and stil no audio in right ear.
Next I’m going to go through the audio path checking all the elemnts etc. but before that I would like to ask a question here. Maybe any of you had the same problem before. Maybe it is some well know problem or any of you have some sugestions?

Would be much appreciated for any help.
Cezar, SP5 Y

On Tue, Aug 8, 2023 at 01:41 PM, Dennis W1UE wrote:

Yes, I have replacement PICs available.? PIC itself is $5, but postage to get it to England is $19!

?

Dennis W1UE

?

?

?

$19 shipping!

Do I need to buy the device pre-programmed, or could I source one over here and program it myself?

Cheers,


John
G4DRS

The settings are stored in EEPROM in the microprocessor.? If you reset the EEPROM using the SO2R Box utility and it does not keep the new values across a power cycle then I think the microprocessor has developed a problem and should be replaced.

I believe Dennis, W1UE has some replacement microprocessors.? If not I think I do, or I can program a new one.

??? Paul, K1XM

On Mon, Aug 7, 2023 at 2:13?PM John, G4DRS via <g4drs=[email protected]> wrote:

I've been using my YCCC SO2R+ 4-radio box for several years now, and I'm very pleased with it.
Just lately, however, it seems that, each time I switch it on, it has 'forgotten' its settings and corrupted the firmware.
This manifests itself in the SO2R Box program by showing Radio 1, Radio 1, Radio 3, Radio4 in the middle of the window, instead of Radio 1, Radio 2, Radio 3, Radio 4. If I change it so the 2nd box reads Radio 2, it is quite happy to switch between radios on OTRSP command. However, the second manifestation of the problem remains, namely that the RX audio does not switch correctly - I can hear radio 1 and radio 2 in the left ear, even though I have asked it to switch to only radio 2.
I re-load the firmware, using the SO2RBox Utility and all is well.
Next time I switch it on, things have reverted to the errors described above.
Is there some kind of backup that has failed? I can see no sign of a battery or a large capacitor in the schematic, so I guess it is in the PIC. Could that lose its ability to retain its setting?
Any advice would be gratefully received.

Thanks,

John
G4DRS

I've been using my YCCC SO2R+ 4-radio box for several years now, and I'm very pleased with it.
Just lately, however, it seems that, each time I switch it on, it has 'forgotten' its settings and corrupted the firmware.
This manifests itself in the SO2R Box program by showing Radio 1, Radio 1, Radio 3, Radio4 in the middle of the window, instead of Radio 1, Radio 2, Radio 3, Radio 4. If I change it so the 2nd box reads Radio 2, it is quite happy to switch between radios on OTRSP command. However, the second manifestation of the problem remains, namely that the RX audio does not switch correctly - I can hear radio 1 and radio 2 in the left ear, even though I have asked it to switch to only radio 2.
I re-load the firmware, using the SO2RBox Utility and all is well.
Next time I switch it on, things have reverted to the errors described above.
Is there some kind of backup that has failed? I can see no sign of a battery or a large capacitor in the schematic, so I guess it is in the PIC. Could that lose its ability to retain its setting?
Any advice would be gratefully received.

Thanks,

John
G4DRS

Test to see if I am now a member of this group.

de K1WZC - Bert

This morning when I attempted to power up my SO2R+ box nothing happened complete failure, no Led's zilch..

Preliminary checks established that the box was getting 12 volts and the internal fuse was good and that the first voltage regulator was also good as was the on off switch.?

Has anyone seen this before and any advice on fault finding to proceed.? Any help much appreciated.

Rodger/GM3JOB?

Greetings to all !
I usually use the SO2R configuration, N1MM+, two keyboards and one PC.?To switch left, right, both, I connected two pedals to pins 10 and 11 of the AUX connector. What is very convenient.
Recently installed all the parts on the board of the box.?
I connected the third transceiver to the third input that appeared. Using macros {OTRSP MAP23} with AHK, I swapped the second and third radios. And then I got lost. How to switch CAT connection? N1MM+ only supports two radios.
Currently I use an additional third transceiver with second computer and for switching I use the third pedal, which connects both ears to the third transceiver through a relay.?
Who knows the most correct connection for SO3R use in CW and SSB ? And what is the idea of four inputs in general ?

73! Yuri EB5A