Panasonic AJSDX900P - 24P DVCPRO 50, Service Manual

Page: 45 / 421

MECH-4
1-7. REV Tension Confirmation
SPEC
180mN ± 20mN (18gf ± 2gf)
TEST POINT
Tension:
Refer to item “6. Table of Test Point for
each adjustment item.”
MODE
STOP
TOOL
VFK1188A (Dial Tension Gauge)
Digital Volt Meter
Click this button , then go to item “6. Table of
Test Point for each adjustment item.”.
<For STUDIO RECORDER>
1. Unscrew the 2 screws and remove the Carriage
Support Panel on the Front Loading Unit.
2. Disconnect the connector P3 on the Carriage
Board of the Front Loading Unit.
3. Unscrew the 6 screws and remove the Top Plate
on the Front Loading Unit as shown in figure
1-4-1.
<For CAMERA RECORDER>
1. Remove the Cassette Up Unit.
<Adjustment Procedure>
1. Place the VTR into no tape loading mode. (No
tape loading procedure is mentioned on item “6.
Table of Test Point for each adjustment item.”).
Click this button , then go to item “6. Table of
Test Point for each adjustment item.”.
2. Push the tension post to the direction R by the
tension gauge as shown in Figure 1-7 until the
voltage at the test point becomes 1.2V (If means
REV position).
3. Confirm that the indication (tension) of gauge is
within the specification. If not, perform the
Tension Spring Adjustment again.
4. After finish this adjustment, grew the screw (A),
(B) and (C). The grew quantity at (B) is half of (A)
and (C).
Grew for the screw (A) and (C) should be as big
as a grain of rice. For the screw (B), it should be
half of that.
Figure 1-7
A
B
C