No Stereo on 2 4 slot boards.

[Stromkabel0605]

Hi

I have 2 replacement boadrs with an EURO Bios.
When i plug them into my Big Red, only the left speakr works.

Is there any known that an Euro Bios causes this Problem.

Had the boards overhaulted 4 month ago and they were alright.

Can anybody help me??

 

[Stromkabel0605]

Forgot to mention.

When i test the Sound in the test mode, only the left Speaker works. The Sound only comes from the left Speaker.
It seems that it is running in mono.
When i plug my us 4 Slot board into the cab everything is perfect.

 

[JasonToddLives]

I guess you could try putting the USA bios in one of the replacement boards and vise versa. Just to try to isolate it to the bios.

 

[Stromkabel0605]

Problem solved!
The boards were modified to Mono. I soldered it back. Now everything is Perfect!