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Door
opener
Side
frame(R)
Fig.3-1a
<Note 3a>
• When reattaching the Mechanism assembly, secure the
screws (S3a to S3b) in the order of 1,2,3.
• When reattaching the Mechanism assembly, be sure to align
the phase of the Rotary encoder on the Main board assembly.
• When reattaching the Mechanism assembly, set the "Mecha-
nism assembling mode". [See "MECHANISM ASSEMBLY
SERVICE MANUAL (No. 86700)".]
• When reattaching the Mechanism assembly to the Main board
assembly, take care not to damage the sensors and switch on
the Main board assembly.
<Note 3b>
• When reattaching the Drum assembly, secure the screws (S3c
to S3e) in the order of c, d, e.
(S3c)
(S3d)
(S3e)
Mechanism
assembly
Drum
assembly
<Note 3c>
Fig.3-1b
• When handling the drum assembly alone, hold it by the motor
or shaft. Be careful not to touch other parts, especially the vid-
eo heads. Also take care not to damage the connectors.
Motor
Video heads
Fig.3-1c
Switch
lever
Switch
knob
(S3e)
(S3d)
HOOK
(S3c)
<NOTE>
Attach the Drum assembly appropriately,
since the installation state of the Drum assembly
influences the FM WAVEFORM LINEARITY
greatly.
Shaft
(No.YD014)1-9
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