Philips DCC 951 head faulty Help

Hi I need replace the head because read well analog tapes but no audio from DCC tapes. I cleaned it very well but not successfully and I tried many different tapes. I’m sure it’s head faulty, because I have a DCC 730 that work fine and swapped all DCC 951 electric board control circuit but nothing changed. Thanks for helping

Could still be worth a try to replace the belt and the pinch rollers.

I’ll try but I don’t believe…, thank you