CPI Confidential V 11
June 12, 2009
7
Power KPA off one more time and remove channel changer controller.
There are total of four driving screws to be cleaned. The threads should be cleaned with
lint free cloth and a suitable solvent, acetone is recommended. If there is a contamination
of dry/dirty (solid) grease in the thread’s home area (upper end), use wooden or plastic
tooth stick to remove it. See picture above for the details. Use the flat screw driver to
rotate driving screw in order to have access to the entire thread perimeter and do the
thorough cleaning.
Please do NOT spray the solvent directly as it may damage optical sensor.
Please do NOT use cotton Q-tips to clean threads.
This could leave cotton fibers on the
threads.
After cleaning, allow sufficient time for solvent to dry. Inspect the threads for the dirt
residue. The entire exposed thread should now be coated in PTFE-based grease (e.g.
“Super Lube” Synthetic Grease with Syncolon (PTFE). For more information go to:
www.super-lube.com
.
Make sure that excess grease doesn’t contaminate optical sensors, remove grease
carefully from those places, if necessary.
Re-attach channel changer assembly and apply power to KPA. Using “FELIX” software
exercise the channel changer by selecting a routine of running from “HOME” to channel
1 to channel 50 to “HOME” for at least ten cycles. This can be done using the “TUNER
CYCLING” function in the “TUNING” menu of the “FELIX” software.
Thread HOME
area.
Wooden stick.
