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Mechanism Service
Technical Information
Colour
Video
Cassette
Recorder
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Contents
1. OUTLINE OF MECHANISM
..............1
1-1. FULLLOADING MECHANISM
.......1
..........3
2-1 .BASIC OPERATION MODE OF
......................3
2-2. DESCRIPTION OF MECHANISM
DRlvE ......... ..............4
2-2-1 .Tape Loading Mechanism ...............8
2-2-2. Pinch Roller P ressing M echanism ............9
2-2-3 .Operation o f Brake Control P late ............ 10
2-2-4 .Brake Control Mechanism ..........
11
(FF REW-STOP
Mode) ...... ...12
2-3. REEL TABLE DRIVE .. ...............
14
2-3-1 .Tape Reel Table Drive
Machanism
.
.
14
Release M echanism ..... ...................
16
,
SELECTION MECHANISM
.............18
2-5. CASSETTE H OLDER MECHANISM ..........22
2-5-1 .Components .............. .. ............22
2-5-2 .Descriptionof Cassette H older.............23
... ................24
.................24
3-2. MODE DETECTION SWITCH ...........24
FULL LOADING ....... ........... .
25
4. MECHANISMMAINTENANCEAND
CHECKING ............................26
MAINTENANCE ITEM AND
SERVICE JIGS ........ ...............26
4-1-1 Periodic Check items.......,..........26
4-1-2 .Cleaning .........
... ... ......... .....27
4-1-3, Service Jigs ..................... .........
28
4-2. HANDLING INSTRUCTIONS
........29
4_2_~
,pan
Names
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
4-2-2 .Connection
.......... ...................
30
4-2-3 .Handling ............ .. ...................31
P90 MECHANISM
6. MECHANISM
DISMANTLING
AND
BEASSEMBLING
......32
5-1. MECHANISM
MAIN UNIT .....32
5-2. CASSEl_TE HOLDER
.. .........33
5-2-l
.COMPLCassette Mechanism ....33
5-2-2 .Gear Bracket Ass'y ....34
5-2-3 .Cassette Drive Gears (Right) ~~~~~~~~~
35
5-2-4 .Cassette Drive Gears (Left) ....36
.....
37
5-2-6 .T-TOPSensor & T-ENDSensor . .... ....38
5-3-1 .COMPL. Motor Bracket ...
.
39
5-3-2 .Loading Motor.............4O
....42
5-4-1 .Main Parts of the Loading
Mechanism ..... . ...... ....
42
5-4-2 .Mode Cam ...... ....44
(ACE HEAD) ........45
MECHANISM
... .......46
.. ......
48
5-7-1 .Sub Take-up Brake Ass'y ........48
5-7-2 .Supply Brake Ass'y and
Take-up Brake Ass'y .........49
5-7-4 .Capstan Brake Ass'y .......5l
.........52
5-8-1 .Supply Reel Ass'y and
Supply Reel Gear..,..5252
5-8-2 .Take-up Reel Ass'y ......53
5-8-4. Reel Pulley and Friction
Gear Ass'y ......55
5-8-5 .COMPLClutch .....56
Clutch Lever Ass'y ........57
5-9. CAPSTAN MOTOR ......58
P90 MECHANISM
ml
Im
PAL
SECAM
LEVERASS'Y..............
5-10-1
FE Lever Ass'y .......... .............
5-1 O-2.impedanceRoller, F TEHead.............-
5-10 -3, Exit Side Fixed Guide ..............
5-1 1. DRUM SECTION ... ......................
5-1 l-2. Drum Unit .............. ........ ..........
5-1 l-3. Upper Drum(Uppar C ylinder) ............
THE CASSEITE CANNOT BE
REM OVED ........... ... ...................
...........
WITH NOCASSETTE I NSERTED .............
MENTAND
TORQUE CHECK ...........
6-2-1 .Reel Table Height ....................."
6-2:2 .Torque Check ............... ........."""
6-3 .TENSION POLE (BACK TENSION
GUIDE)POSITION ADJUSTMENT
ANDBACK TENSION TOROUE
CHECK... .. ............... ...............
6-3-1 .Tension Pole Position
Adjustment ................................
6-3-2 .Back Tension Torque Check .........
6-4.TAPE
PATH ADJUSTMENT ........ ..
6-4-1. Preparations for Adjustment ..,....
6-4-2 .Adjustment byVisual O bservation
afterGuideRoller, F ixed Guide or
COMPL HaadBracket
Replacement .......... ..................... ..
6-4-3, Entrance Side Fixed Guide (S)
Height Adjustment .....................".
6-4-4 .Guide Roller Adjustment .............
Adjustment .................. ....... ..."..
6-4-6 .COMPLHesd8racket (ACE Head)
Adjustment . .............................".
6-4-7 .Checking after Adjustment ...."."".."
REFERENCE No. WM-530!
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