This comes up frequently (I've had several Matrix 6/6R units brought in for
repair with this "problem") -- it's another case of "RTFM" ("Read The
Friendly Manual").

I quote from page 8: "When STEREO is set to ON, the LEFT/MONO jack outputs
all sounds from single patches and the sound from the LOWER patch when in
SPLIT mode; the RIGHT jack only outputs sound when in SPLIT mode, and this
sound comes from the UPPER patch."

To learn how to access & program SPLIT mode, RTFM
(read the funny manual)
(read the fine manual)
(read the funky manual)
(READ THE FRIGGIN' THING)
;)

~GMM

At 09:56 AM 12/17/2006, you wrote:

>My Matrix 6R has a strange problem - no matter which preset you
>select, with both Stereo option ON and OFF, only Left/Mono channel
>works.
>On headphones, on the other hand, you can hear both channels.
>
>I am trying to find out whether this is an electronic problem or if
>there's something wrong in the setting.
>
>I tried the following to no avail so far:
>
>1. Full Reset ("Calibration")
>
>2. Replaced the 3 ICs at the final amplification stage, which are a
>741, 4082 and 4053. When disconnecting the "Left/Ground/Ground/Right"
> wire going from the main voice board to the headphones/out board,
>and checking the output jack on the voice board with an audio probe,
>only left channel plays, so I guess there is nothing to do with
>neither the output jack board nor the headphones board.
>
>I can't see any component the might have an influence on the right
>channel alone, beside those 3 ICs which I've replaced...
>
>Any suggestions
>
>Thanks
>
>
>
>
>Yahoo! Groups Links
>
>
>