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34
27DV-S100
27DV-CS10
• Adjustment
1. If the indication of torque cassette meter is lower than
the setting, shift the tension spring engagement to the
part A.
2. If the indication of torque cassette meter is higher than
the setting, shift the tension spring engagement to the
part B.
• Problems caused by maladjustments
1. Much maladjusted
: Tapes may get scratched.
2. Slightly maladjusted : Images onscreen may get
distorted.
CHECKING THE BRAKE TORQUE
• Checking the brake torque at the supply side
CCW: 2.9~9.8mN
⋅
m (30~100gf
⋅
cm)
CW:
4.9~13.7mN
⋅
m (50~140gf
⋅
cm)
Figure 1-21.
• Remove the cassette housing control assembly.
• After short-circuiting R7057 and JUMPER:420
provided on the main PWB, plug in the power cord,
then turn on the power.
• Setting
1. Set a torque gauge to zero on the scale. Place it on the
supply reel disk.
2. Switch from the FF mode to the STOP mode.
3. Disconnect the power cord.
• Checking
Turn the torque gauge at a rate of about one turn/2 sec
Figure 1-20.
Tension arm
Tension spring
B
A
Torque gauge
CCW
CW
Supply reel disk
CCW: 4.9~13.7mN
⋅
m (50~140gf
⋅
cm)
CW:
3.9~10.8mN
⋅
m (40~110gf
⋅
cm)
•
Remove the cassette housing control assembly.
•
After short-circuiting R7057 and JUMPER:420
provided on the main PWB, plug in the power cord,
then turn on the power.
•
Setting
1. Switch from the FF mode to the STOP mode.
2. Disconnect the power cord.
3. Set a torque gauge to zero on the scale. Place it on the
take-up reel disk.
•
Checking
1. Turn the torque gauge at a rate of about one turn/2 sec
in the CCW direction/CW direction so that the reel disk
and torque gauge pointer rotates at equal speed and
make sure that the value is within the setting (CCW
direction: 4.9 to 13.7mN·m (50 to 140gf·cm), CW
direction: 3.9 to 10.8 mN·m (40 to 110gf·cm).
2. Adjustment of the brake torque at the supply side and
the take-up side
•
Unless the supply side brake torque or take-up side
brake torque is within the setting, clean the felt surface
of reel disk (supply, take-up) brake lever, check again
the brake torque.
•
If value cannot be set within the setting yet, replace the
main brake ass'y or main brake spring.
•
Problems caused by maladjustments
1. From the FF or REW to the STOP mode
• Much maladjusted
: The brake noise may get louder.
• Slightly maladjusted : Tapes may get slack and
scratched.
Torque gauge
Take-up reel
disk
CW
CCW
Figure 1-22.
in the CW direction/CCW direction with respect to the
supply reel disk so that the reel disk and torque gauge
pointer rotate at equal speed, and make sure that the
value is within the setting (CW direction: 4.9 to 13.7mN·m
(50 to 140gf·cm); CCW direction: 2.9 to 9.8mN·m (30 to
100gf·cm).
•
Checking the brake torque at the take-up side
Summary of Contents for 27DV-CS10
Page 72: ...73 27DV S100 27DV CS10 72 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT ...
Page 103: ...111 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit ...
Page 106: ...116 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM TERMINAL SUB Unit ...
Page 107: ...117 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM FRONT AV Unit ...
Page 122: ...144 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H MAIN Unit Wiring Side ...
Page 123: ...145 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H MAIN Unit Chip Parts Side ...
Page 124: ...146 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H TERMINAL Unit Wiring Side ...
Page 125: ...147 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H TERMINAL Unit Chip Parts Side ...
Page 126: ...148 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H TV POWER Unit Wiring Side ...
Page 127: ...149 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DEFLECTION Unit Wiring Side ...
Page 128: ...150 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DVD VCR POWER Unit Wiring Side ...
Page 130: ...152 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DVD MAIN Unit A Side ...
Page 131: ...153 27DV S100 27DV CS10 6 5 4 3 2 1 A B C D E F G H DVD MAIN Unit B Side ...