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4-16
GY-8240UWD
GY-8240FC
B
x
100
>
80 %
C
x
100
>
80 %
A
A
A = RF max
x
0.8
RF max
A = RF max
x
0.8
B
A
C D
RF max
<Fig.3>
<Tape running check>
1
2
3
4
Spec.1:
TG-0
The tape runs without any curl at the lower flange.
TG-1 (S tension regulator)
The tape runs in contact with the upper flange.
The tape curl is less than 1/10 of the tape width.
TG-2 (Entrance guide)
The tape runs in contact with the upper flange.
The tape curl is less than 1/10 of the tape width.
Lead of drum entrance side
The tape runs without any curl at the lead.
If the waveform does not become flat, perform
the check and adjustment below.
1
Clean the drum lead with a bamboo skewer.
(Refer to Section 2-2-3.)
2
Press down the tape by bamboo skewer very
lightly and check that the tape is running
without aparting from the drum lead.
3
Adjust the height of TG-2 so that the RF
waveform is nearly flat within the range of
the specification shown in the Fig 3. At this
time, do not overpress the tape at TG-2.
(7) Check the tape running at the drum entrance
side in the following modes.
.
FWD mode
.
VAR
_
1 time normal speed mode
.
VAR
_
5 times normal speed mode
.
F FWD mode
.
REW mode
If the tape curl does not satisfy the specification
at either TG-0, TG-1 or TG-2, perform the
following adjustments while observing the
waveform.
1
Change the pressure against the tape at TG-1
and TG-2 within the range shown in the Fig. 1.
.
If the tape curl at TG-1 exceeds the specifi-
cation, turn the upper flange of TG-2
clockwise.
.
If the tape curl at TG-2 exceeds the specifi-
cation, turn the height adjustment nut of
TG-1 clockwise.
2
Perform the tracking adjustment again. (Refer
to step (1) through (7) mentioned above.)
(8) Press the switch S110 (ESC) on the DSP-90
board twice to exit the tracking adjustment
mode.
8. Recheck the Tracking
Refer to steps 5 through 6.
4-4. Tracking Adjustment
Tracking Adjustment at Drum Entrance Side
Содержание GY-8240FC
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Страница 241: ...5 25 GY 8240UWD GY 8240FC Dew sensor Tape top sensor Top view Tape end sensor 5 4 DIAG Mode Sensor Layout ...
Страница 249: ...5 33 GY 8240UWD GY 8240FC Unthread end sensor Threading ring Thread end sensor Threading motor Top view 5 4 DIAG Mode ...
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Страница 444: ...Printed in Japan Sony Corporation 2003 2 08 B P Company 2000 GY 8240FC SY GY 8240UWD SY E 9 967 913 06 ...