STEPRACE: Service & Maintenance Manual - rev. 1.2
Page 7.5
Figure 7.3-4
Rest the keyboard – electronic circuit boards
group on a work bench:
7. Disconnect connectors e.
8. Back off the 6 studs f using a 7-mm wrench.
Figure 7.3-5
9. Separate the CPU board g from the LED
board h by flipping it over toward the left,
being careful not to damage cable strip i.
10. Manually disconnect the cable strip i from
the CPU board.
11. Remove the circuit boards.
12. To disconnect the LCD from the CPU board,
back off the 4 screws l using a small Philips
screwdriver, or release the 4 spring fasteners.
13. Disconnect or unsolder the cables on the
CPU board side.
14. Remove the LCD.
To reassemble the circuit boards, carry out the
above steps in reverse order.
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