CONTENTS
3-1. Parts Locati
on
...........................................................................
3-3
3-2. Servicing Fixtures
and
Tools························································
'3-4
3-3. How To Eject
Manually···········
..
·················································
'3-5
3-4. Maintenance
Procedures·············
.................................................
'3-6
3-4-1.
Regular Maintenance ...................................................... ··········································3-6
3-4-2.
Maintenance Chart ...................................................... ·············································3-6
3-4-3.
Lubrication Procedures of the Capstan Shaft ...................................................... ·········3-7
3-4-4.
Procedures for Cleaning
of
the Cylinder Unit ...................................................... ······3-7
3-4-5. Adjustments After Re-installing the Upper Cylinder, Lower Cylinder···························3-8
3-4-6.
Adjustments After Re-installing the
A/C
Head Unit··················································'3-8
3-5. Mechanical Parts Replacement Procedures
......................................
'3-9
3-5-1.
Replacement
of
the Upper Cylinder Unit ...................................................... ···············3-9
3-5-2.
Replacement of the Lower Cylinder Unit·····································································3-10
3-5-3.
Replacement of the
A/C
Head (1) U nit ...................................................... ···············3-10
3-5-4.
Replacement
of
the Full Erase Head ...................................................... ·····················3-10
3-5-5. Replacement of the Capstan Rotor and Capstan Stator ················································3-11
3-5-6.
Replacement
of
the Capstan Housing Unit ...................................................... ············3-11
3-5-7.
Replacement of the Inclined Base (S),
(T)
......................................................
············3-12
3-5-8.
Replacement
of
the
P5
Post ...................................................... ················
..
···············3-12
3-5-9.
Replacement of the
Reel
Unit ...................................................... ······························3-13
3-5-10.
Replacement
of
the Main Brake (S),
(T)
Unit····························································3-13
3-5-11.
Replacement
of
the Pressure Roller Unit ...................................................... ············3-13
3-5-12.
Replacement
of
the Mode Switch ...................................................... ························3-14
3-5-13.
Replacement
of
the Pinch Solenoid ...................................................... ·····················3-14
3-5-14.
Replacement
of
the Head Cleaning Pad ...................................................... ···············3-15
3-6. Mechanical Adjustment Procedures
...............................................
'3-16
3-6-1.
Flow Chart
of
Tape Interchangeability Adjustment
..
·······
..
········
..
·································3-16
3-6-2.
Coarse Adjustment
of
the Tape Guide Post Heights (P2 andP3) ·································3-17
3-6-3.
Fine Adjustment of the Tape Guide Post Height (P2 and P3) (Linearity) ·····················3-18
3-6-4.
Adjustment
of
the Pull-out Post (P5) Height ...................................................... ·········3-19
3-6-5.
Adjustment
of
the
A/C
Head ...................................................... ······························3-20
3-6-6.
Coarse Adjustment
of
the
A/C
Head Horizontal Position (X-Value)
..
·························3-22
3-6-7.
Fine Adjustment
of
the
A/C
Head Horizontal Position (X-Value) ······························3-22
3-6-8.
Adjustment
of
Inclined Base
(T)
......................................................
···························3-22
3-6-9.
Adj
ustment
of
Thrust Gap .............................................................. ····························3-23
3-6-10. Adjustment
of
FG
Gap ...................................................... ·······································3-23
3-6-11.
M easurement and
Adj
ustment of Back Tension ........................................................
'3-24
3-6-12.
Height Adjustment
of
the
Reel
Tables
..
······························································
..
······3-25
3-6-13.
Measurement and Adjustment
of
the Brake Torque ···················································3-26
3-6-14.
Pressing Force Confirmation of Pressure Roller Unit················································3-26
3-6-15.
Adj
ustment
of
Rev
Tension Sensor Position ........................................................... ····3-27
3-7. Assembly
and
Adjustment Procedures of
Mechanism······················
.. ·· '3-28
3-7-1.
Confirmation of Alignment Condition ...................................................... ··················3-28
3-7-2.
Assembly Procedures
of
Sub Cam Gear, Ring Gear and Oetent Arm ···························3-29
3-7-3.
Assembly Procedures of Main Cam Gear and Pinch Speed
Down
Gear ························3-29
3-7-4.
Assembly Procedures
of
Loading Cam Gear and Retainer Gear ·································3-29
3-7-5.
Assembly Procedures of Center Gear ...................................................... ··················3-30
3-7-6.
Assembly Procedures
of
Main Lever and Cam Follower Arm Unit ······························3-30
3-7-7.
Assembly Procedures
of
Loading Gear
(T),
Loading Gear (S) Sector Gear ···············3-30
3-7-8.
Assembly Procedures
of
Connection Gear ...................................................... ············3-31
3-7-9.
Assembly Procedures
of
Mode
Switch and
P5
Pull Out Sector Gear······························3-31
3-7-10.
Assembly Procedures of Pinch Cam and Pressure Roller Unit ·································3-31
3-7-11.
Assembly Procedures of Gear Base Unit ...................................................... ············3-32
3-7-12.
Re-installation
of
Cassette Compartment ...................................................... ············3-32
3-2
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