B.
Adjustment
After
Re-installing
l
l
I
l
I
I
I
I
I
I
Figure M12 shows
the
order
of
steps for
adjusting
the mechanical and electrical.
These
adjustments
should
be
performed
after
completion of reinstalling
the
A/C Head
(1)
Unit.
AFTER REINSTALLING THE
A/C
HEAD
(1)
UNIT
' I I
I
MECHANICAL
ADJUSTMENTS :
I
u
COARSE ADJUSTMENT OF THE
A/C
HEAD HIGHT
I
u
TILT & AZIMUTH ADJUSTMENT OF THE
A/C
HEAD
I
u
FINE ADJUSTMENT OF THE
A/C
HEAD HIGHT
I
u
COARSE ADJUSTMENT OF THE
A/C
HEAD
I
HORIZONTAL POSITION (X-VALUE)
u
FINE ADJUSTMENT OF THE
A/C
HEAD HORIZONTAL
I
POSITION (X-VALUE)
I I
I I
I
ELECTRICAL ADJUSTMENTS :
I
u
NORMAL
AUDIO PLAYBACK FREQUENCY RESPONSE
I
ADJUSTMENT
u
NORMAL
AUDIO PLAYBACK GAIN ADJUSTMENT
I
u
AUDIO BIAS CURRENT ADJUSTMENT
I
u
NORMAL
AUDIO REC CURRENT ADJUSTMENT
I
Figure M12
3-4-4. FULL ERASE HEAD MAINTENANCE
PROCEDURE
A. Replacement
of
the
Full
Erase Head
1.
Disconnect a connector
(J).
2. Unscrew a screw
(K)
and remove the Full Erase
Head.
Impedance
Roller
Figure M
13
3. The new Full Erase Head can
be
reinstalled by
reversing the removal procedure.
3-4-5. PRESSURE ROLLER MAINTENANCE
PROCEDURES
A.
Replacement
of
the Pressure Roller
Unit
1. Place the deck
in
STOP
or
EJECT mode.
2. Remove the Pinch Can Cap.
3. Remove the Pressure Roller Unit.
Pinch Cam Cap
Pressure
Roller Unit
4. The new
3-7
re-installed
procedure.
Figure
M
14
Pressure Roller
by
reversing
Unit
the
can
be
removal
w
(.)
z
<1:
z
w
1-
z
<
:E
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