Split Stereo File Sync ? ? ? ?

[joules]

I occasionally loose L R sync in playback at random intervals usually about 20 sec after play was pressed, It's happened on two or three occasions now, a few months apart, last occurance was yesterday, restarting didnt help, but I cant get it to do it today.It doesn't affect CD burning

Good one this!!

MLCD 1.4
CDR400tx
AMIII
PM 7300/200

Any Ideas

The one and only
Mr Julius Newell
Somewhat perplexed, to say the least.