C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-93
02.9631.0010
CONFIDENTIAL
15 Jan 98
4. Color filter bulkhead two-pin connector at header
marked O.T. (rev. C board) or BOT (rev. D board).
5. Color filter bulkhead four-pin connector at header
marked W1 E.T. (rev. C board) or in area marked WH1
(rev. D board).
6. Color filter bulkhead four-pin connector at header
marked W2 E.T. (rev. C board) or in area marked WH2
(rev. D board).
7. Color filter bulkhead six-pin connector at header marked
W1 (rev. C board) or WH1 (rev. D board).
8. Color filter bulkhead six-pin connector at header marked
W2 (rev. C board) or WH2 (rev. D board).
9. Gobo/beam projector four-pin connector at header
marked GOBO E.T. (rev. C board) or in area marked
GOBO (rev. D board).
10. Gobo/beam projector six-pin connector at header
marked GOBO.
11. Gobo/beam projector eight-pin connector at header
marked BEAM SIZE (rev. C board) or BEAM (rev. D
board).
Step 4.
Remove color filter bulkhead assembly. Refer to Color Filter
Bulkhead Removal and Replacement paragraph.
Step 5.
Remove brightness/focus bulkhead assembly. Refer to
Brightness/Focus Bulkhead Removal and Replacement
paragraph.
Step 6.
Remove yoke termination board.
a. At edges of yoke termination board, remove six 6-
32x1/4"PPZ screws and #6 internal tooth lock washers that
secure board to cable side rail cover. Do not remove 4-40
screws in middle of board.
b. Disconnect 24- and 26-pin connectors from back of yoke
termination board and remove board.
Step 7.
Replace yoke termination board by doing Steps 2 through 6 in
reverse. When replacing yoke termination board, orient board
so that DIM IRIS (rev. C board) or DIM (rev. D board) and
IRIS ET (rev. C board) or DIM EOT (rev. D board) markings
are closest to iris baffle.
