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Tech Service Bulletin No. 6645/6655/6665-031
Page 2 of 2
FERRITE CORE INSTALLATION PROCEDURE:
1. Remove the rear cover.
2. Install one (1) Ferrite Core (16070478) on the wiring harness of CN111 as shown above.
3. Lower the Main Control Board.
4. Place two cores between the main harness [A] and
the band [B].
5. Place the remaining core between the band [B] and
the connector [C].
NOTE:
After installing each Ferrite Core, try to slide it along the
harness to ensure the core isn't pinching any wires. If it
can be moved, it is installed correctly.
PERMANENT COUNTERMEASURE:
A thin copper layer will be added on the Main Control Board to absorb electrical noise.
UNITS AFFECTED:
Not available at time of publication.
CN111
[B]
[A]
[C]
[B]
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