Sharp 37VT-26H Service Manual page 32

37VT-26H(GY)
16. A/C HEAD HEIGHT ROUGH ADJUSTMENT
• Setting
Height screw
Weight to prevent
float (500g)
1. Set the cassette tape in the unit.
2. Press the PLAY button to put the unit in the playback
mode.
3. Roughly adjust the height of the A/C head by turning
the height screw until the tape is in the position shown
below.
A/C head
• Adjustment
Adjust the height screw visually so that the control head
is visible 0.3mm below the bottom of the tape.
Azimuth screw
Tilt screw
Cassette tape
500g
Mechanism chassis
Figure 1-26.
Tape
0.3mm
Figure 1-27.
17. HEIGHT ADJUSTMENT OF REVERSE
GUIDE
1. Adjust the height from the mechanism chassis to the
reverse guide lower flange to 13.38 mm, using the
reverse guide height adjustment jig, in tape loading
state. (Refer to Figure 1-28 (a) (b).)
Reverse guide
Reverse guide height
adjusting jig
(a)
Figure 1-28.
2. Rotate counterclockwise the reverse guide height
adjustment nut 1/10 turn. (For height adjustment use
the reverse guide height adjustment box driver
(JiGDRiVER11055)).
3. Set the tape, and check for tape crease near the
reverse guide in the playback mode.
If crease is found, turn the reverse guide adjustment
nut to remove crease. (As for crease check refer to
Figure 1-30.)
A
500g
Weight to
Mechanism
prevent float (500g)
chassis
Check for crease from the A direction.
32
Reverse guide height
adjusting jig
Mechanism
13.38mm
chassis
(b)
Box driver
CCW
Height adjusting nut
Figure 1-29.
Capstan
motor shaft
Fixing guide
An example of
crease near the
Reverse guide
reverse guide
Figure 1-30.