Playback has horizontal blinds and no sound - Canon MV750i Mini DV Digital Camcorder

Do you mean a roller blind

make sure your speaker to your sheron sound isnt to close to it .also if dvd player is the source then move away from tv will demagnatize the tv theres a magnet in them

You may need to clean the head on the device. You can purchase head cleaning tapes from most stores that sell the tapes, or goto a specialist camera shop.
Failing that, open the tape slot, tape the tape out, and with a soft cloth see if you can clean the small silver heads very gently.

try with head cleaning cassette 2 or 3 times if problem presists change video head assembly
VEG1731

Switched from ATI to Intel Graphics Accelorator

CCD (imaging IC) went bad and has to be replaced.

the camcorder flickers when viewing playback - pictures flickering

hi, if you have stuck the head cleaner in and this has not removed the black lines then the head might either need a thorough clean or may be damaged.

It could be a head adjustment or it could be the CCD unit. It should be taken in for repair to find the cause.

Able to record video but there is no sound on playback