Adjustment After Re-Installing; Full Erase Head Maintenance Procedures; Replacement Of The Full Erase Head; Pressure Roller Maintenance Procedures - Panasonic AG-7350 Series Service Manual

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