Gear Chain Phase Adjustment - Sony HDCAM HDW-F900R Maintenance Manual

8-1-8. Gear Chain Phase Adjustment

Note
The gear chain phase serves as the reference of the entire tape running system.
When the S gear assembly and the T gear assembly are out of phase each other, the
gear chain phase adjustment must be executed.
Preparations
1. Remove the front lid and outside panel assembly. (Refer to Section 1-4.)
2. Remove the cassette compartment. (Refer to Section 1-9.)
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When adjusting the T gear assembly, prepare the two new stop washers (3-559-408-11).
Tools
. Stop washer fastening tool : J-6323-530-A
. Parallel pin (d = 2.0 mm) : 3-703-358-04
Check procedure
1. Establish the threading-end state of
mechanism as follows :
. When replacing the S slider assembly :
(1) Rotate the manual eject gear (A) counter-
clockwise.
(2) Check to see that the mechanism has
entered the state that is described "3. S
Gear Assembly Adjustment, step (2)".
. When replacing the T slider assembly :
(1) Rotate the manual eject gear (A) counter-
clockwise.
(2) Check to see that the mechanism has
entered the state that is described "4. T
Gear Assembly Adjustment, step (2)".
. When replacing the cam gear assembly :
(1) Rotate the cam gear assembly clockwise.
(2) Check to see that the mechanism has
entered the state that is described "4. T
Gear Assembly Adjustment, step (2)".
2. Confirm the gear chain phase as
follows :
. When replacing the S slider assembly :
Confirm that the specification 1 is satisfied.
If the specification 1 is not satisfied, go to "3. S
gear assembly adjustment".
. When replacing the T slider assembly or cam
gear assembly :
Confirm that the specification 2 is satisfied.
If the specification 2 is not satisfied, go to "4. T
gear assembly adjustment".
8-16
S slider assembly Hole
Round
hole
Trapezoidal
hole
Sub cam gear S gear assembly
Specification1 :
The trapezoidal hole of the sub
cam gear and the round hole of
the S gear assembly must be
facing each other.
Manual eject gear (A)
Cam gear assembly
Hole
T slider assembly
T gear assembly
Round hole
Intermittent
gear
Round hole
Specification 2 :
The round hole of the inter-
mittent gear and the round hole
of the T gear assembly must be
facing each other.
HDW-F900R/V1 (E)