26
MO200
5200QDC
REPLACING PRINTED CIRCUIT BOARD "F"
TO REMOVE:
1. Remove the front cover unit (see page 5).
2. Unplug the printed circuit board "F" connector and remove the cs ring.
3. Remove the two setscrews (A) and remove the printed circuit board "F".
TO INSTALL:
4. To install the printed circuit board "F". Follow the above procedure in reverse.
* Each button (needle up/down button, start/stop button, reverse button) should "Click" when pressed.
REPLACING PRINTED CIRCUIT BOARD "L"
TO REMOVE:
5. Unplug the printed circuit board "L" connector from printed circuit board "F".
6. Remove the setscrew (B) and remove the printed circuit board "L".
TO INSTALL:
7. To install the printed circuit board "L". Follow the above procedure in reverse.
REPLACING PRINTED CIRCUIT BOARD F
AND PRINTED CIRCUIT BOARD L
Printed circuit board "L"
connector
Printed circuit board "F"
Setscrews (A)
Printed circuit
board "L"
Printed circuit board "K"
Setscrew (B)