Philips VL3000, Service Manual

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VARI
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LITE
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- VL3000™ & VL3000™Q S
ERVICE
M
ANUAL
4 4 0 2 . 9 6 7 8 . 0 0 1 0 G
Tilt Encoder PCB Replacement
VL Part No: 24.9661.9629
Repair/Replacement Procedure
Step 1. Disconnect luminaire AC input cable from power source.
Step 2. At tilt-side leg, remove yoke leg cover by removing four 6-32x3/8" PTB screws.
Step 3. At tilt motor assembly, loosen four 10-32x1/2" PPZ screws.
Step 4. Remove belt from tilt pulley.
Step 5. Remove four 10-32x1/2" PPZ screws. Be mindful of tensioning springs.
Step 6. Disconnect wiring and remove tilt assembly.
Step 7. On tilt assembly, remove two 4-40x1/4" LG PPZ screws and remove encoder PCB.
Step 8. Replace by performing steps 2 through 7 in reverse order.
Note: Make sure encoder disk passes through sensor when installing encoder PCB and wiring is not
pinched during installation. When tightening four 10-32x1/2" PPZ screws that mount Pan Motor
Assembly, you must tighten in a CLOCKWISE pattern starting with screw in lower left-hand side
from spring.
Figure 2-24: VL3000 Tilt Encoder PCB Replacement
Tilt Motor
Assembly
Spring
Head not shown for clarity.
NOTE:
Tilt Encoder
Tilt Motor Assembly Detail
Sensor
Bracket
Tilt Belt