Removal Of The Light Tunnel; Light Tunnel Adjustment - Mitsubishi Electric SD420U Service Manual

13. Removal of the light tunnel

1. Remove the top cover and front ASSY following "1.
Removal of the top cover and front ASSY."
2. Remove the MAIN PCB ASSY following "2. Removal of
the MAIN PCB ASSY."
3. Remove the ballast ASSY following "3. Removal of the
lamp power unit."
4. Remove the optical unit following "4. Removal of the
optical unit."
5. Remove the CW ASSY following "12. Removal of the
CW unit and CW PCB ASSY."
6. Remove the two screws (a) as shown in Fig. 2-13-1.
7. Remove the two screws (b) as shown in Fig. 2-13-1.
8. Remove the plat1 as shown in Fig. 2-13-1.
9. Remove the two screws (c) as shown in Fig. 2-13-1.
10. Remove the plate2 as shown in Fig. 2-13-1.
11. Remove the light tunnel as shown in Fig. 2-13-1.
Note: For adjustment in attaching the light tunnel, see

"LIGHT TUNNEL ADJUSTMENT."

a
Plate1
- 16 -
a
a
c
b
b
c
b b
a
c
c
Plate2
Light tunnel
Fig. 2-13-1