3-40
V
ARI
*L
ITE®
-
VL2B
AND
VL2C
S
POT
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL
02.9631.0010
15 Jan 98
3.2.2.9
Gobo Filters Not Working Properly
Step 1.
Open electronics chassis to gain access to mother board.
Step 2.
At mother board, ensure good yoke cable connection.
Step 3.
Remove head assembly covers to gain access to YTB.
Step 4.
At YTB, ensure good yoke cable and iris motor wire
connections.
Step 5.
At electronics chassis, replace CIB with known good board.
a. If new CIB solves problem replace IC U5 on faulty CIB and
retest . If problem not corrected then return bad CIB.
b. If replacement does not solve problem, re-install removed
control interface board and continue with next step.
Step 6.
At GBP, inspect gobo wheel.
a. Clean wheel with glass cleaner as necessary. The optical
sensor may misinterpret dirt as sensor tape.
b. Ensure sensor tape is secured to wheel.
c. Check wheel for warping and bent filters. Replace wheels
as necessary. Refer to Gobo/Beam Projector Removal and
Replacement paragraph.
d. Check for Gobos hitting Beam Iris. Replace as necessary.
Step 7.
Ensure optical sensors are properly calibrated. Refer to Color
and Gobo Wheel Sensor Calibration paragraph.
