Mechanical Adjustment Procedures; Post Height Pre-Adjustment; Tension Adjustment Flowchart; Tension Arm Offset Adjustment - Panasonic AJ-SDX900P Service Manual

1. Mechanical Adjustment Procedures

1-1. Post Height Pre-adjustment

MODE
EJECT (POWER OFF)
TOOL
VFK1149B (Post Driver)
VFK1151A (2.5mm Nut Driver)
VFK1154 (Post Height Fixture)
VFK1586 (Mech. Neutral Plate)
1. Confirm that the post is in loading completion
condition.
2. Confirm that the Reel Table is located at
M-Cassette position. Turn off the power, remove
the cassette-up unit and install the Mech. Neutral
Plate.
3. Put the Post Height Fixture on the Mech. Neutral
Plate and adjust each post height to lower limit as
following figure.
4. Please refer to following table to see Post Driver to
be used to adjust each post.
VFK1154
(Mech. Nentral
Plate)
(a) Upper Limit
VFK1154
(Mech. Nentral
Plate)
(b) Lower Limit
Figure 1-1
Post
S4
S5 Lower Limit 0 +0.1 / 0 mm
T3 Lower Limit+0.000 / -0.030
T4
Note:
S4, S5 post height is changed about 0.05mm by 90
degrees rotation and T4, T5 post height is changed
about 0.03mm by 45 degrees rotation.
(Reference
face)
(Reference
face)
Limit
S5 Height +0.1 0 / -0.1
Lower Limit +/-0.030

1-2. Tension Adjustment Flowchart

1-3. Tension Arm Offset Adjustment

1-4. Neutral Position Adjustment
1-5. Playback Voltage Adjustment
1-5. Rev Voltage Confirmation
1-6. Tension Spring Adjustment
1-7. Rev Tension Confirmation
1-3. Tension Arm Offset
Adjustment
SPEC
TEST POINT
ADJ.
MODE
TOOL
Click this button
Test Point for each adjustment item.".
1. Confirm that the DC voltage at the test point is
within the specification.
2. If it is out of spec, Adjust the VR so that the DC
voltage is within the specification.
MECH-1
START
OK
OK
END
Figure 1-2
2.5 V ± 0.05 V
Tension:
Refer to item "6. Table of Test Point for
each adjustment item."
Tension Offset :
Refer to item "6. Table of Test Point for
each adjustment item."
EJECT
Digital Volt Meter
, then go to item "6. Table of
NG
NG