Mitsubishi Electric XD221U Service Manual page 16

9 Unscrew the 6 screws.
(E)
screws.
Unscrew sequence D-C-B-A
Then take out the optical
(D)
(B) (C)
unit gently.
(A)
(F)
Optical unit
10
Unscrew the 4 screws(a),
disconnect (b) and (c)
then take off POWER PCB
(b)
ASSY.
(c)
(a)
(a)
(a)
(a)
POWER PCB ASSY
- 3 -