Hello,
I'm Dave From The U.K.

I found this Info for the PSR 9000 to find the total sampling time.
http://www.yamaha.com/ycaservice/group020/fgrop020.htm

1. Click on the link: Portable Keyboards.

2. Scroll Down. Click: PSR1000 - PSR9000.

3. Click: PSR9000.

4. Click: ALL PSR9000 ISSUES.

5. Scroll down: Click: Verifying the Total SIMM Memory Capacity after Installation on a PSR9000

The sample Test:
1) Press and hold down the [DEMO], [EXIT] and [II] 'INTRO' buttons
simultaneously then power ON the keyboard.

2) Press the [NEXT] button repeatedly until '007:SIMM Chk1' is
displayed in the screen.

3) Press the [START/STOP] button. The screen will display the current
total SIMM memory.

4) Power the keyboard OFF and then ON to return the keyboard to
normal operation.


This puts the PSR 9000 into "Test Mode",
It tests every function of the 9000.

You can press the "Forward/Back" buttons for each test.

Press the "Start/Stop" button to start each test.
Wait until the display says "OK".

You Press the "Start/Stop" button or "C2 key" to escape each test.

If you press the "Next" button repeatedly till the "EXIT" test and
press the "Start/Stop" button this will boot the 9000 as normal.

It's Very Unusual.

I Don't know whether this will work for the 9000PRO.


Bye

Dave.