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DV MECHANICAL ADJUSTMENT MANUAL IV
Ver 1.1 1999.10
with SUPPLEMENT-1 (9-974-050-82)
C MECHANISM
File with the SERVICE MANUAL.
For details on schematic diagram, printed circuit boards diagram, and
electric parts list regarding this mechanism deck, refer to the service
manual for the unit mounting the C mechanism.
MECHANISM
TABLE OF CONTENTS
1. EXPLODED VIEWS 4. CHECK AND ADJUSTMENT
1-1. Cassette Compartment, Drum and Reel Table Assembly ... 3 · Adjustment Position ......................................................... 18
1-2. Tape Guide, Pinch Slider Assembly and Brake Slider · Adjustment Order (Flowchart) ......................................... 18
Assembly ............................................................................ 4 4-1. FWD Position Checking and Adjustment ......................... 19
1-3. Each Gears and Loading / Capstan Motor Assembly ......... 5 4-2. FWD Back Tension Checking and Adjustment ................ 19
4-3. Reel Table (S) / (T) Torque Check .................................... 20
2. PARTS REPLACEMENT AND PREPARATION 4-4. Preparation for Tape Path Checking and Adjustment ....... 20
FOR ADJUSTMENT 4-5. Track Checking and Adjustment ...................................... 21
4-6. TG7 Slack Checking and Adjustment .............................. 21
· About Mode Selector II 4-7. Curl Checking and Adjustment ......................................... 22
2-1. Outline ................................................................................ 6 4-8. CUE and REV Check ....................................................... 22
2-2. Mechanism Condition (Position) Shifting Order List ........ 6 4-9. Rising Check ..................................................................... 22
2-3. Mode Selector II (J-6082-282-A) Connection .................... 6
2-4. Service Jigs List .................................................................. 7
3. PARTS REPLACEMENT 5. PERIODIC CHECK
3-1. Tape Fall Stopper, HC Roller and HC Arm ........................ 8 5-1. Cleaning of Rotary Drum Assembly ................................ 23
3-2. Drum Assembly and Drum Base Block Assembly ............. 8 5-2. Cleaning of Tape Path System .......................................... 23
3-3. Damper Assembly, Cassette Compartment Assembly 5-3. Periodic Checks ................................................................ 23
and Extension Spring .......................................................... 9
3-4. Reel Table (S) / (T) Assembly .......................................... 10
3-5. Cassette Base Block Assembly,
Gooseneck Gear Assembly and Relay Gear ..................... 10
3-6. TG1 Adjustment Plate Assembly, Tension Coil Spring
(TG1), TG1 Arm Assembly, TG7 Retainer Spring
and TG7 Arm Block Assembly ......................................... 11
3-7. Brake Slider Assembly, Pinch Slider Assembly
and Cam Gear ................................................................... 11
3-8. Pinch Arm Assembly, Torsion Spring (TG7LD),
Pinch Press Arm and Eject Arm ....................................... 12
3-9. GL Block Assembly, GL Driving Gear and
HC Driving Arm ............................................................... 12
3-10. Capstan Motor, Conversion Pulley,
Timing Belt and Holder .................................................... 13
3-11. L Motor Block Assembly and
FP-594 Flexible Board ...................................................... 14
3-12. Reset Arm (S), Brake (S), Brake Rack (S), Brake (T),
Brake Gear (T), Brake Spring (T) and
Extension Spring ............................................................... 15
3-13. Coaster (S) / (T) Assembly, GL Arm (S) / (T) Assembly,
Guide Rail, GL Gear (S) / (T) and
Torsion Spring (GLS) / (GLT) .......................................... 16
3-14. L Motor Assembly, Motor Shield,
FP-248 Flexible Board, TG1 Spring Hook, Spring Hook
Fulcrum Base, Spring Hook Driving Arm, Worm Shaft,
Deceleration Gear and Motor Holder ............................... 17
2
1. EXPLODED VIEWS
NOTE:
· Items marked "*" are not stocked since they are seldom required for routine
service. Some delay should be anticipated when ordering these items.
· The mechanical parts with no reference number in the exploded views are
not supplied.
1-1. CASSETTE COMPARTMENT, DRUM AND REEL TABLE ASSEMBLY
Refer to page 9 for details of Refer to page 8 for details of
714 replacement of parts. replacement of parts. 718
707
719
Refer to page 8 for details of replace-
ment of parts.
715
713 714 M901(Note)
712
710
713
711
Refer to page 10 for details
of replacement of parts. 717
710
710 710
710
Refer to page 9 for details of
replacement of parts.
709
716
708
701 705
704
703
706 Note : Refer to the proper service manual
702
701 since the model name of drum as-
sembly and the Parts No. are dif-
ferent according to sets.
Refer to pages 10 and 15 for details of replacement of parts.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
701 3-988-312-01 SPRING, EXTENSION 711 X-3948-445-1 TABLE (T) ASSY, REEL
702 3-988-220-01 BRAKE (T) 712 X-3948-444-1 TABLE (S) ASSY, REEL
703 3-988-221-01 GEAR (T), BRAKE 713 3-989-465-01 WASHER, STOPPER
704 3-988-222-01 SPRING (T), BRAKE 714 3-988-298-01 SPRING EXTENSION
705 3-988-215-02 BASE, CASSETTE 715 X-3948-441-2 CASSETTE COMPARTMENT ASSY
706 3-988-217-01 ARM (S), RESET 716 X-3948-443-2 DAMPER ASSY
707 3-988-281-02 ARM, HC 717 A-7093-612-A DRUM BASE BLOCK ASSY
708 3-988-219-01 RACK (S), BRAKE 718 3-988-282-01 ROLLER, HC
709 3-988-218-01 BRAKE (S) 719 3-988-283-01 STOPPER, TAPE FALL
710 3-947-503-01 SCREW (M1.4X2.5) M901 Note DRUM ASSY
3
1-2. TAPE GUIDE, PINCH SLIDER ASSEMBLY AND BRAKE SLIDER ASSEMBLY
Refer to pages 12 and 16 for details of replacement of parts.
770 769
Including Ref No. 813
on page 5.
756
767
768
755
766
765
764
Refer to page 11 for details of replacement 763
762
of parts.
761
Refer to page 11 for details
Refer to page 11 for details of
of replacement of parts.
replacement of parts.
753 754
760
757
759 773
752 772
771
751 758
Refer to page 10 for details of Refer to pages 11 and 12 for details of
replacement of parts. replacement of parts.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
751 3-988-263-01 GEAR, RELAY 763 3-988-258-01 SPRING (GLT), TORSION
752 X-3948-442-2 GEAR ASSY, GOOSENECK 764 3-988-253-01 SPRING (GLS), TORSION
753 X-3948-435-2 PLATE ASSY, TG1 ADJUSTMENT 765 X-3948-440-1 ARM (T) ASSY, GL
754 X-3948-434-1 ARM ASSY, TG1
755 X-3948-428-4 SLIDER ASSY, PINCH 766 X-3948-439-3 ARM (S) ASSY, GL
767 3-947-503-01 SCREW (M1.4X2.5)
756 X-3948-766-1 SLIDER ASSY, BRAKE 768 3-988-242-01 RAIL, GUIDE
757 3-988-270-01 SPRING (TG1), TENSION COIL 769 X-3948-438-3 COASTER (T) ASSY
758 3-988-233-01 SPRING (TG7LD), TORSION 770 X-3948-437-1 COASTER (S) ASSY
759 X-3948-433-2 ARM ASSY, PINCH
760 A-7093-501-A ARM BLOCK ASSY, TG7 771 3-988-690-02 SPRING, TG7 RETAINER
772 X-3748-630-2 ROLLER ASSY (DIA. 5.6), PINCH
761 3-988-257-02 GEAR (T), GL 773 3-050-334-01 SCREW (M1.4X5)
762 3-988-252-03 GEAR (S), GL
4
Ver 1.1 1999.10
1-3. EACH GEARS AND LOADING / CAPSTAN MOTOR ASSEMBLY
M902 Refer to pages 14 and 17 for details of
810 811 replacement of parts.
812
S903
809
813
808
Q901
Refer to page 12 for details of
807 806 replacement of parts.
805
807 814
804 D901
Q902 Refer to page 13 for details of
Refer to page 11 for details of
H901 replacement of parts.
replacement of parts. H902
807 807
CN901
S902
803
Refer to page 12 for details of
replacement of parts.
815
M903 820
802
819
801 802
Refer to page 13 for details of
replacement of parts.
S901
817
816
Refer to page 14 for details of 818 Refer to page 12 for details of
replacement of parts. replacement of parts.
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
801 3-988-274-01 PULLEY, CONVERSION 816 3-988-223-01 ARM, EJECT
802 3-988-276-02 BELT, TIMING 817 3-988-224-01 ARM, PINCH PRESS
803 3-988-216-01 GEAR, CAM 818 X-3948-431-4 CHASSIS ASSY
804 3-988-211-01 GEAR, DECELERATION 819 3-050-170-01 HOLDER
805 3-988-210-01 SHAFT, WORM 820 3-051-787-02 SPRING (CAP), COMPRESSION COIL
806 3-988-207-01 HOLDER, MOTOR CN901 1-784-723-11 PIN, CONNECTOR 4P
807 3-947-503-01 SCREW (M1.4X2.5) D901 8-719-067-13 DIODE GL453K
808 3-988-303-01 ARM, SPRING HOOK DRIVING H901 8-719-061-28 DIODE HW-105C-FT-V (S REEL SENSOR)
809 3-988-271-01 BASE, SPRING HOOK FULCRUM H902 8-719-061-28 DIODE HW-105C-FT-V (T REEL SENSOR)
810 3-988-302-01 HOOK, TG1 SPRING M901 X-3948-346-1 MOTOR ASSY, L (LOADING)
811 3-988-208-01 SHIELD, MOTOR M903 8-835-606-01 MOTOR, DC SCD15A/C-NP (CAPSTAN)
812 1-657-785-11 FP-248 FLEXIBLE BOARD (DEW SENSOR) Q901 8-729-907-25 PHOTO TRANSISTOR PT4850F (TAPE END)
813 A-7073-418-A FP-594 BOARD, COMPLETE Q902 8-729-907-25 PHOTO TRANSISTOR PT4850F (TAPE TOP)
814 3-988-280-03 ARM, HC DRIVING S901 1-771-039-51 SWITCH, PUSH (C IN SW)
815 3-988-239-01 GEAR, GL DRIVING S902 1-572-719-32 SWITCH, PUSH (1 KEY) (REC PROOF)
S903 1-771-325-11 ENCODER, ROTARY (SWITCH) (MODE)
5
2. PARTS REPLACEMENT AND PREPARATION FOR ADJUSTMENT
· About Mode Selector II
2-1. OUTLINE 2-2. MECHANISM CONDITION (POSITION)
This unit is a mechanism drive tool which supplements the SHIFTING ORDER LIST
maintenance of each mechanism deck. Its functions are After selecting the mechanism deck, select one of the two test
described below. modes other than the auto test, and press the RVS and FF button
to specify the mechanism state (position).
1. Manual test MD name
A mode which drives the motor only while the switch is ON. C mechanism
Code
It enables the operator to control the motor as desired. A B C D
1 1 1 0 1 EJECT
2. Step test 1 0 1 0 2 ULE
A mode which drives the motor until the current condition 1 0 1 1 3 SR
detected by the sensor changes to another condition. It enables 1 0 0 1 4 HL
the movements made by the motor in each operation to be 0 1 1 1 5 LE
controlled while being checked. 0 0 1 1 6 STOP
1 1 0 1 7 RP
3. Auto test 1 1 0 0 8 REW
A mode that checks if the mechanism operates normally
according to the condition shift table recorded in the unit for
each mechanism deck. All the conditions of the decks are checked
through a series of operations.
An error message is displayed if incorrect shifts and conditions
are detected and operations are stopped.
2-3. MODE SELECTOR II (A-6082-282-A) CONNECTION
Alligator Clip
FP-594 flexible board
C mechanism
Mode serector II
Connector (White) 6P
Relay boards
Mode selector conversion Battery of NP-55, 77, etc.
board (C) (Power supply)
Connector (Black) 6P
6
2-4. SERVICE JIGS LIST
J-1. Cleaning fluid J-2. Wiping cloth J-3. Super fine applicator
(Y-2031-001-0) (7-741-900-53) (Made by NIPPON APPLICATOR(P752D))
J-4. Mirror (Small oval type) J-5. Screwdriver for tape path J-6. Torque driver
(J-6082-840-A) (J-6082-026-A) (J-9049-330-A)
J-7. TG1 adjustment jig J-8. Mode selector conversion board (C) J-9. Tracking tape (XH2-1) (NTSC/PAL)
(FWD position adjustment) (J-6082-417-A) (8-967-997-01)
(J-6082-420-A)
J-10. Mini DV torque cassette J-11. Adjusting remote commander J-12. Mode selector II
(J-6082-360-A) (RM-95 remodeled partly : Note 1) (J-6082-282-A)
(J-6082-053-B)
J-13. Mode selector II ROM J-14. Bending stick
(Corresponds to C mechanism: Note 2) (J-6082-419-A)
(J-6082-314-D)
Note 1 : If the micro processor IC in the adjusting remote com-
mander is not the new micro processor (UPD7503G-C56-
12), the pages cannot be switched. In this case, replace
with the new micro processor (8-759-148-35).
Note 2 : ROM for version upgrading to allow use of the mode se-
lector II with the C mechanism.
7
Screw tightening torque tolerance.
0.0098 N.m (0.1 kg.cm)
3. PARTS REPLACEMENT
· Precautions
For details on removing the cabinet and board, refer to "DISASSEMBLY" in the respective service manuals. For details on the replacement
of mechanism parts (removal or attaching), refer to the respective flowcharts, and perform the procedure given.
3-1. TAPE FALL STOPPER, HC ROLLER AND HC ARM
Removing method : Spread out the left and right attaching parts
and remove them upwards.
Attaching method : Refer to the Details diagram.
Details diagram on attachment of Tape Tape fall stopper
Spread outwards. HC arm
Fall Stopper
The left and right attaching parts are fixed to
the chassis.
Spread outwards.
Chassis
HC driving arm
Details diagram on removal and
attachment of HC Arm and HC Roller
HC roller
Claw
HC arm
Rotate slightly and
release the lock.
When attaching the tape fall stopper,
Tape fall stopper
make sure that the HC arm ( ) is
Note: There should be no scratches outside the HC driving arm (capstan
or dirt on the HC roller. motor side).
3-2. DRUM ASSEMBLY AND DRUM BASE BLOCK ASSEMBLY
Remove the
"3-1. Tape Fall Stopper".
Drum assembly
Removing method : Remove in the order of 1/2/3/4 .
Attaching method : Attach in the order of 4/3/2/1 . 2
(Note:Tighten the screws in the order of A, B, and C.)
After attaching all the parts, refer to the flowchart on page 18, Do not touch the running face
and perform the adjustments from Starting adjustments-2. of the tape ( ).
AScrew
Holding the Drum Assembly Blast screw (Do not rotate.) 3
Insert your second finger between the two 3CScrew
flexible boards, and hold the top and bottom
boards. BScrew
3 Drum base block assembly
Drum base block assembly
tightening torque 4
0.0686 N·m (0.7 kg·cm)
Positioning pins Blast screw (Do not rotate.)
Note: Do not touch the running face of the
drum assembly.
Details diagram on attachment of Drum
Assembly (Positioning pins)
Pin at rear side
Long hole
CScrew
Drum assembly tightening torque
0.0588 N·m (0.6 kg·cm)
1 AScrew
Pin at side of Hole BScrew
reel table
8
3-3. DAMPER ASSEMBLY, CASSETTE COMPARTMENT ASSEMBLY AND EXTENSION SPRING
Remove the
"3-1. Tape Fall Stopper". Details diagram on removal of
Cassette Compartment Assembly
Removing method : Remove in the order of 1/2/3/4/5 . 1Lock plate
Cassette compartment arm (S2) 3 Short down the cassette
compartment assembly.
Extension
spring 5 4 2Move up.
Extension spring Cassette
5 compartment
Cassette compartment arm (T2) arm (T2)
Cassette compartment 2
assembly Damper assembly
1 3Shaft
3 1. Pull the lock plate in the arrow direction.
Two hooks 2. Move up the cassette compartment assembly.
2 3. While shorting-down the cassette compartment
Remove the
claw. assembly, move the arms (T2) and (S2) inside,
and remove the left and right shafts.
Cassette compartment arm (S1) Cassette compartment arm (T1)
3
4. Move forward until the part disconnects.
Attaching method : Attach in the order of 1/2/3/4 . Details diagram on attachment of
Note :Be careful not to deform the cassette compartment. Damper Assembly
1. Insert the left and right shafts of the cassette compartment Note :To attach, hook rear hook first.
arms (S1) and (T1) into the chassis. Two hooks
2. Push down the cassette compartment assembly in the Damper assembly
Shafts
direction of arrow 2.
3. Insert the left and right shafts of the cassette compartment
arms (S2) and (T2) into the chassis. Claw
4. Attach the damper assembly. Damper arm
5. Attach the two extension springs.
Hooking direction of the extension Cassette compartment
spring arm (T2)
Cassette compartment arm (T2)
(S2 opposite side.)
2 Attach the claw. Damper assembly
4
Cassette compartment arm (T1)
(S1 opposite side.)
4 Hook the hook.
Take note of the position at which the
shaft is fixed.
(The part should be visible from the 1 3 Damper arm
chassis side).
Take note of the position at which the shaft is fixed.
(The damper arm should also be fixed to the same shaft.)
9
Screw tightening torque tolerance.
0.0098 N.m (0.1 kg.cm)
3-4. REEL TABLE (S) / REEL TABLE (T) ASSEMBLY
Remove the
"3-1. Tape Fall Stopper"
and "3-3. Damper Assembly and Cassette Compartment Assembly".
Removing method : Remove in the order of 1/2/3/4 . Use only new washers. Do not reuse
washers that have been removed once.
Attaching method : Attach in the order of 2/1/4/3 .
After attaching all the parts, refer to the flowchart on page 18, and 3Stopper washer
perform the adjustments from Starting adjustments-1.
Details diagram on removal of Reel Stopper washer
Table (S) Assembly
1
Does not disconnect. Reel table (S) assembly 4
(Take note of how it should be removed.)
2 Reel table (T) assembly
The gear is engaged with the reel table, and
does not disconnect.
Pull the part with an object with a pointed
end to disengage.
Disconnects.
Do not touch the external
When attaching the reel table, avoid the TG1 circumference gear of the
adjusting plate assembly. reel table.
(Be careful not to scratch the tension regulator pad.)
3-5. CASSETTE BASE BLOCK ASSEMBLY, GOOSENECK GEAR ASSEMBLY AND RELAY GEAR
Remove the
"3-1. Tape Fall Stopper"
Remove towards the front upwards.
4
and "3-3. Damper Assembly and Cassette Compartment Assembly".
1LED (Refer to figure-1.)
Removing method : Remove in the order of 1/2/3/
Screw
4/5/6 .
3 3 Screw
Attaching method : Attach in the order of 6/5/4/ 3
3/2/1 . Screw Cassette base block
assembly
Details diagram on removal and
attachment of LED State check 2
Removing : / (Refer to figure-2.)
Attaching : ¿ Claw
Refer to 3-12. for details on how
to replace assemblies such as
the brake S.
Fig-1. Cassette base block
5 Gooseneck gear assembly
Be careful not to scratch the Flexible board. assembly tightening torque
Details diagram on State Checking of
0.0686 N·m (0.7 kg·cm) 6 Relay gear
Brake (S)
The gear is engaged with the reel table, and
does not disconnect.
Pull the part with an object with a pointed
end to disengage.
Disconnects.
Claw
Does not disconnect. Apply the grease
Fig-2. (1.5mm dia.)
Brake (S)
10
Screw tightening torque tolerance.
0.0098 N.m (0.1 kg.cm)
3-6. TG1 ADJUSTMENT PLATE ASSEMBLY, TENSION COIL SPRING (TG1), TG1 ARM ASSEMBLY,
TG7 RETAINER SPRING AND TG7 ARM BLOCK ASSEMBLY
Be careful not to touch the Tension coil spring Screw
Remove the tape guide ( part). (TG1) TG7 retainer
"3-1. Tape Fall Stopper", spring
TG1 arm assembly
Do no scratch the tension TG7 arm block assembly
"3-3. Damper Assembly and Cassette regulator pad.
Compartment Assembly"
TG1 adjustment plate TG1 spring
assembly hook
and "3-5. Cassette Base Block Assembly".
Pinch slider
Removing method : Remove the desired parts as shown in Pinch arm
the figure.
Attaching method : Refer to the detailed diagrams.
After attaching all the parts, refer to the flowchart on page 18,
and perform the adjustments from Starting adjustments-1. Refer to detailed
diagram.
Details diagram on attachment of TG1 Apply the grease
Arm Assembly (1.5mm dia.)
Attach so that the TG1 flange is almost TG7 retainer spring tightening torque
Note:
parallel to the TG3 flange. 0.0294 N·m (0.3 kg·cm)
Insert the tweezers from this hole, temporarily
tighten the spring, and release it.
Details diagram on removal and attachment of TG7 arm Block Assembly
TG1 frange
Remove the tension of the When removing When attaching
spring attached to the TG7 arm.
TG3 frange To attach, temporarily attach the TG7 arm
spring to the pinch arm from the
chassis hole using a pair of
tweezers.
Pinch arm
3-7. BRAKE SLIDER ASSEMBLY, PINCH SLIDER ASSEMBLY AND CAM GEAR
Remove the
Details diagram on removal and attachment of
"3-1. Tape Fall Stopper", Reel Base
Removing method : Move upwards in the direction
"3-3. Damper Assembly and Cassette Compartment Assembly", of arrow A .
Attaching method : Attach in the order of 1/2 .
Reel base
"3-4. Reel Table (S) / Reel Table (T) Assembly",
Reel base A
"3-5. Cassette Base Block Assemlby, Gooseneck 1 Reel shaft (S)
Gear Assembly and Relay Gear"
1 Reel shaft (T)
Brake slider
and "3-6. TG1 Arm Assembly and TG1 Adjustment assembly 2
Plate Assembly". 2 1
Conversion pulley shaft
Removing method : Remove in the order of 1/2/3/4 .
Attaching method : Attach in the order of 4/3/2/1 .
(Be sure to adjust the position and phase.)
Pinch slider assembly
Detailed diagram on the adjusting the
phase of each gear, and parts to be greased. 3 Apply the grease
(1.5mm dia.)
Rotary encoder
Cam gear 4
GL driving gear
3mm dia.
Cam gear
Reel shaft (T)
Reel shaft (S)
Rotary encoder
Grease the parts.(1.5mm dia.) Pinch press arm
GL driving gear
11
Screw tightening torque tolerance.
0.0098 N.m (0.1 kg.cm)
3-8. PINCH ARM ASSEMBLY, TORSION SPRING (TG7LD), PINCH PRESS ARM AND EJECT ARM
Remove the Pinch arm assembly
"3-1. Tape Fall Stopper",
1
Pinch press arm
3
"3-3. Damper Assembly and Cassette Compartment Assembly",
Eject arm 4
"3-4. Reel Table (S) / Reel Table (T) Assembly", 2
Torsion spring
(TG7LD)
"3-5. Cassette Base Block Assembly, Gooseneck Gear Assembly
and Relay Gear",
"3-6. TG1 Arm Assembly, TG1 Adjustment Plate Assembly
and TG7 Arm Block Assembly"
and "3-7. Brake Slider Assembly and Pinch Slider Assembly".
Removing method : Remove in the order of 1/2/3/4 .
Attaching method : Attach in the order of 4/3/2/1 .
(Be sure to adjust the position and phase.)
Details diagram on attachment of Pinch Arm Assembly
and Torsion Spring (TG7LD) Details diagram on adjustment or Position and Phase
Attach so that the roller is in front of TG6.
Pinch arm (Bottom side) NG Attach so that this hole
TG6
Pinch arm overlaps with the hole of
the chassis.
Attach so that the eject
arm and switch engage.
Temporarily attach the spring.
3-9. GL BLOCK ASSEMBLY, GL DRIVING GEAR AND HC DRIVING ARM
Remove the Details diagram on adjustment of Position and
Phase
"3-1. Tape Fall Stopper",
Attach so that the
"3-3. Damper Assembly and Cassette Compartment Assembly", pin of the arm fits
the part.
"3-2. Drum Assembly and Drum Base Block Assembly",
"3-4. Reel Table (S) / Reel Table (T) Assembly", GL block assembly
1Screw
When attaching the GL block as- 2
"3-5. Cassette Base Block Assembly, Gooseneck sembly, each coaster must be in
contact with the end of the guide rail. Guide rail
Gear Assembly and Relay Gear",
Be careful not to touch the tape
guide ( part).
"3-6. TG1 Arm Assembly, TG1 Adjustment Plate GL driving gear
Assembly and TG7 Arm Block Assembly", 4 HC driving arm
3
"3-7. Brake Slider Assembly, Pinch Slider Assembly and Cam Gear"
Rotary encoder
and "3-8. Pinch Arm Assembly".
Removing method : Remove in the order of 1/2/3/4 .
Attaching method : Attach in the order of 4/3/2/1 .
(Be sure to adjust the position and phase.)
After attaching all the parts, refer to the flowchart on page 18,
and perform the adjustments from Starting adjustments-1.
Refer to 3-13. for details on how GL block assembly
to replace assemblies such as tightening torque
the guide rail. 0.0686 N·m (0.7 kg·cm)
12
Screw tightening torque tolerance.
0.0098 N.m (0.1 kg.cm)
3-10. CAPSTAN MOTOR, CONVERSION PULLEY, TIMING BELT AND HOLDER
Remove the
Capstan motor tightening torque 1 Screw
"3-1. Tape Fall Stopper", 0.0686 N·m (0.7 kg·cm) 1 Screw
"3-3. Damper Assembly and Cassette Compartment Assembly", Capstan motor 2
Be careful not to touch the
"3-2. Drum Assembly and Drum Base Block Assembly", Capstan ( part).
"3-4. Reel Table (S) / Reel Table (T) Assembly", Timing belt
3 Gear
"3-5. Cassette Base Block Assembly, Gooseneck Compression spring
Gear Assembly and Relay Gear", 5 (Not supplied parts.)
Conversion pulley
"3-6. TG1 Arm Assembly, TG1 Adjustment Plate Assembly, TG7 4 6 Holder
Arm Block Assembly and TG7 Retainer Spring",
"3-7. Brake Slider Assembly and Pinch Slider Assembly",
"3-8. Pinch Arm Assembly and Pinch Press Arm"
and "3-9. GL Block Assembly".
Removing method : Remove in the order of 1/2/3/4 /5/6.
Attaching method : Refer to the following diagram.
After attaching all the parts, refer to the flowchart on page 18, and perform
the adjustments from Starting adjustments-1.
Attachment of Timing Belt
1. Refer to "Removing method", and attach the compression spring 5. After attaching, pull the timing belt lightly, and check that the
(TG7) and holder to the chassis. movements of the conversion pulley and gear at the back of the
capstan motor are linked.
2. Attach the timing belt to the capstan motor and the conversion
pulley.
Capstan motor
When the capstan motor is screwed
on with the belt protruding from the
indented part of the part, the belt
Conversion pulley will become fixed.
Capstan motor
Timing belt
3. Attach the conversion pulley to the conversion pulley shaft.
Attach the capstan motor to the chassis.
4. Secure the capstan motor with the screw.
Conversion pulley
Apply the grease Timing belt
(1.5mm dia.) Screw
Conversion pulley Capstan motor tightening torque
0.0686 N·m (0.7 kg·cm)
Conversion pulley shaft
13
Screw tightening torque tolerance.
0.0098 N.m (0.1 kg.cm)
3-11. L MOTOR BLOCK ASSEMBLY AND FP-594 FLEXIBLE BOARD
First, remove
all parts from 3-1 to 3-10.
Removing method : Remove in the order of 1/2/3/4 Detailed diagram on removal and attachment of
/5/6/7/8 . Rotary Encoder
(For details on how to remove each part, refer to the detailed diagram.) Removing method : A
1 Rotary encoder Remove the solder, and rotate the ro-
(Remove the solder.) tary encoder in the ? direction.
(The three parts of part A should be
L motor assembly S sensor holder visible.)
(Remove the
solder.) 3 Attaching method :
4 FP-594 flexible
Rotate the rotary encoder in the ¿ A
direction. (The three parts of part A
2Screw board
should be hidden.) And then solder.
A
Two
screws 6 8 Detailed diagram on removal and attachment of
T sensor
5 holder L Motor Block Assembly
FP-248 flexible Solder the four parts of the
board flexible board.
Tightening torque Screw
7 0.0686 N·m (0.7 kg·cm)
Claw
Connector pin
(4P)
Refer to 3-14. for details on how
to replace assemblies such as
the TG1 spring hook.
Attaching method :
Refer to the following diagram, for attaching the FP-594 flexible Detailed diagram on removal and attachment of
board, and attaching the parts in the order of 1/2/3/4/ Sensor Holder (S) / (T)
5/6/7/8 .
Sensor holder (S) Sensor holder (T)
(For attaching each part, refer to each detailed diagram.)
The contacting part should
be facing down.
Pass through the
hole and bend. Two claws
8 1
7 Detailed diagram on removal and attachment of Con-
nector Pin (4P)
Connector pin
Screw (4P)
3 6 2
Push switch (REC PROOF)
Should be fit to the connector hole. Screw
5 Push switch (Cassette in SW)
Should be fit to the positioning hole.
4
Tightening torque
0.0686 N·m (0.7 kg·cm)
14
3-12. RESET ARM (S), BRAKE (S), BRAKE RACK (S), BRAKE (T), BRAKE GEAR (T), BRAKE SPRING (T)
AND EXTENSION SPRING
Removal or attaching method
Detailed diagram on removal and attachment of
Brake (T) Brake (T), Brake Gear (T) and Brake Spring (T)
Attaching method :
Insert the brake gear (T) into the brake spring (T), and slide the
Brake gear (T) brake (T) to attach. (Remove in the reverse order.)
Extension spring
Brake spring (T) Brake spring (T)
Brake gear (T)
Reset arm (S)
Brake (T)
Brake rack (S)
Extension spring
Brake (S)
Note : Be careful not to deform the brake spring (T).
Removal and attachment of Brake (S), Brake Rack (S) and Extension Spring
Position adjustment Reset arm (S)
of Pin
Attach so that the gear Extension spring
faces down.
Brake (S)
Brake rack (S)
Position adjustment
of Pin Extension spring
Spring hook
15
3-13. COASTER (S) / (T) ASSEMBLY, GL ARM (S) / (T) ASSEMBLY, GUIDE RAIL, GL GEAR (S) / (T) AND
TORSION SPRING (GLS) / (GLT)
Removing method
· Refer to the detailed diagram on the right, and remove each part. Detailed diagram on removal of GL Arm (S) / (T) Assem-
bly
Be careful not to touch the tape
Coaster (S) assembly guide ( part). Be careful not to bend the GL arm.
Does not disconnect. Disconnects.
(S side) (S side)
Coaster (T) assembly
Guide rail