harman kardon hk775 amps


i recently started using a new to me pair of Harman Kardon hk 775 mono bloc amps and ADS m15 speakers.I am now experiencing an unusual problem.When i fire the system up playing a cd I get a momentary skip or dead spot towards the end of the 1st track and intermittently on the 2nd track,by the time the cd is finished i can go back and replay the entire cd this time no dead spots plays perfectly.secondly i now cannot get a stereo signal when using fm tuner only mono,perfect stereo in any other mode.any suggestions.
mgmike69

Showing 1 response by 6550c

Do you have this problem on every CD or just one?

You did not mention what CD player, preamp, or tuner you are using.
By mono, do you mean the same signal in both speakers or just sound from one speaker?
Does the tuner have its own mono switch?