Panasonic DVC PRO Studio AJ-D950P Service Manual page 814

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3-6-22 REV Confirmation and Adjustment (T4HeightAdjustment)
Specification C1¤C2>=Cp1, Cp2×0.75
Lower Limit at T3Post in REV
Test Point
TP30 (SERVO:F1)
Adjustment T4 Post Height
Mode
REV X 1
1. Run the Tape in REV x –1 mode, and confirm that the above specification is satisfied. If it is not, adjust the
following items.
2. Rotate the T4 nut 45 degrees each and confirm the specification and repeat this adjustment until the
specification is satisfied.
3. Specification: CTL level in REV x –1 speed is more than 75 % of Playback CTL level.
Tape runs in lower limit at T3 Post, and tape has no curling and bending at T3, T4 upper and lower limit.
4.If the Specification is not satisfied, use height adjustment tool.
T4 Nut Adjustment Direction
T4 Nut Adjustment
Direction
CW
CCW
Post Limit
Post
A
T3Post NG
T4Post OK
A Upper
B Free
REV CTL Output
Increase
Decrease
Tape Limit
B C
NG OK NG
OK OK NG
C Lower
D Curl
C1,C2:REV•~1
Cp1
C1
Cp1¤Cp2:PLAY•~1
C2
Cp2
Tape VFM3580KM (No.1)
M. EQ.
Oscilloscope
Tool Nut Driver
REV T3 Post Lower
Limit
More
Less
D E F
NG NG
NG NG
E Bend F Drop