Hi Ali,
thanks for your feedback!
As I said before, all needed information can be found in the Service Manual.
For example, on the
Tyros5, the keyboard unit is screwed to the lower case. So you can simply remove / open the upper case upwards (after you have removed the "correct" screws on the bottom) and then you have direct access to the key attachment, see here:
>>>
https://youtu.be/hJPl_Kp06AY?t=63With
PSR-S models, however, this is different: After you have removed / opened the lower case, you will see that the keyboard unit is screwed to the
upper case. In order to get to the screwing of the black and white keys, the complete keyboard unit must be removed. Whether the EMKS61A, MK-L and MK-H circuit boards and the rubber contact have to be removed depends on the damage that is to be repaired. Since the frames with the
black keys are accessible
first (without removing the
white keys), the circuit boards and/or the rubber contact mentioned may not necessarily have to be removed in your case.
Therefore, disassembly procedures
2 (Lower Case),
10 (Keyboard Assembly) and
20-7/
20-8 are important for you. Procedures 20-3 through 20-6 are optional.
Here is a video showing a DIY repair of a white key on the PSR-S710. The construction of the keyboard unit is basically identical to the S970:
>>>
https://www.youtube.com/watch?v=p0CnoUNelKIHope you can successfully repair your S970!
Best regards,
Chris