Sanyo FISHER V95 I Mechanism Manual

FILENO.
BASIC SERVICE TECHNICAL
INFORMATION
Video Cassette Recorder
Siiio
V95 IMECHANISM
Contents
1. MAINTAINING AND CHECKING
-- THE MECHANISM
1-1. REGULARCHECKSAND
MAINTENANCE ITEMS ...................2
1-2. SERVICETOOLS ..............................3
2. AN OVERVIEW OF THE
MECHANISM
2-1. NAMES OFTHE MAIN PARTS .......4
2-2. AN OVERVIEWOF THE
MECHANISM MODES .....................6
3. DIS-ASSEMBLING THE MAIN
PARTS OF THE MECHANISM
3-1. HOW TO MAKE THE MECHANISM
MOVE ...............................................8
3-2. MECHANISM UNIT .........................9
3-3. CASSETTEDRIVEMECHANISM ....9
3-4. CLEANERROLLER
-- ASSEMBLY ....................................11
3-5. CYLINDER(DRUM) ........................12
3-6. FEHEADAND ACE HEAD.............I4
L
3-7. CAPSTAN MOTOR ........................15
3-8. LOADING MOTOR ASSEMBLY
AND WORM GEARASSEMBLY ...16
3-9. PINCH ROLLERPRESSURE
MECHANISM .................................16
3-10. LGUIDE LEVERASSEMBLY AND
LOAD LEVERASSEMBLY .............18
3-11. BT LEVERASSEMBLY ..................18
3-12. REELDRIVEMECHANISM ............19
3-13. BRAKES.........................................20
3-14. GUIDES ..........................................22
3-15. WHEEL GEAR2, MAIN CAM AND
MODE SWITCH ..............................23
3-16. CRESCENTSLIDE..........................24
3-17. SLOADGEAR,TLOAD GEAR,
SLOAD LEVERASSEMBLY AND
TLOAD LEVERASSEMBLY ..........25
3-18. TAPE SENSORS, REELSENSOR
AND EPSW LEVER .......................26
piw
PALSECAMNTSC
4. MECHANISM CHECKS AND
ADJUSTMENTS
4-1. REELTABLETORQUE CHECK......27
4-2. ADJUSTING THE BT LEVER
ASSEMBLY POSITION AND
CHECKINGTHE BACKTENSION
TORQUE IN PLAYMODE ..............27
4-3. TAPE PATHADJUSTMENT ..........28
VMECHANISM REFERENCE No. MM531433

1. MAINTAINING AND CHECKING THE MECHANISM
1-1.REGULAR CHECKS AND NOTE: OIL AND GREASE
MAINTENANCE ITEMS ●Always use the specified brands of oil and grease. if you
To obtain full function and maximum performance from use agrease with the wrong viscosity, for example, this
the set, and to stop it getting dirty or scratched, we can lead to all sorts of problems. Be careful to keep the
recommend that you carry out the following maintenance oil and grease free of dust and foreign bodies.
procedures and regular checks. The maintenance checks ●A“drop” of oil is the amount of oil remaining on the tip
described in the following section should also be carried of arod with adiameter of 1.5mm after it is dipped in oil
out without fail after carrying out any repairs to the set. to adepth of Icm and then taken out.
1-1-1. REGULAR CHECKS OClean ~Check AOi
Hours of use (H)
Part maintained 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Remarks
Tape guide o00’ 0 0 0 0 0 0 0
ACE head, full erase head o0 0 0 0 0 0 0 0 0
Tape path The life of parts varies
Cylinder (drum) o0 0 0 0 0 0 0 0 0 enormously, depending on the
system environment in which the part
(0) (0) (0) (0) (0) (0) (0) (0) (0) is used.
Cleaner roller assembly 0 0 000
Pinch roller o0 0 0 0 0 0 0 0 0
Reel table oOA oOA o
Drive Reel belt o0 0 0 0 0 0 0 0 0
system Relay gear, Pulley shaft, Gaar shaft A A A A A
Loading motor 0 0 000
Back tension oQo0Pleyback tension torque:
~30 to 50g/cm
Brake system Qo000
Perform-
ance FWD: 600g/cm or over
checks FWD, REW, PLAY torque, REW: 600g/cm or over
REV torque oQo0PLAY (SP mode):
~80 to 140g/cm
REV: 120 to 220g/cm
1-1-2. CLEANING
1. Cylinder (Drum) (See Fig.1-l-1)
Moisten achamois with methyl alcohol and clean the video
head (including the Hi-Fi audio head) and the tape path
surface of the cylinder. Be sure to wipe horizontally in
relation to the video head. If you wipe vertically, or use
excessive force, you can damage the video head.
2. Tape Path System /Reel Drive System
Clean the pinch roller, the capstan shaft, the tape guides,
the FE head, the ACE head, the reel table, the pulley and the
reel belt with asoft cloth, or chamois, moistened with
methyl alcohol.
.—
Tape path’ surface Video head
-2-
Fig.1-1-1 -

1-2. SERVICE TOOLS
1-2-1. SERVICE TOOLS
NOTES ON ALIGNMENT TAPES
.. Select aPAL or NTSC alignment tape from the list below,
repairing.
according
PAL: For models with 625 scanning lines and afield frequency of 50Hz
NTSC: For models with 525 scanning lines and afield frequency of 60Hz
to the transmission . . .---
system Ot the VCH you are
No. ITool Tool No. Remarks
NTSC PAL
1Alignment tape VHJ-0005 VHJ-0008 SP colour bar lkHz (normal)
2Aiianment taDe VHJ-0006 VHJ-0009 SP monoscoDe 7kHz (normal)
3IAlignment tape VHJ-0007 I—IEP monoscope
4Alignment tape VHJ-0052 LP monoscope
5Eccentric screw driver VHJ-0003 Used to adjust the tape path
6Nut box VHJ-0048 Used to adjust the height of the lever
load assembly
7Torque dial gauge VHJ-OO04 Used tomeasurereel winding torque
8Cassette torque meter VHJ-0016 Used to measure backtensiontorque
9Load lever assembly height adjustment tool VHJ-0102 Used to adjust the height of the load
lever assembly
10 Torque gauge screwdriver VHJ-0014 Used to adjust the tightening torque of
screws
11 3mm dia. bit for torque screwdriver VHJ-0045 Used to replace the bit of the torque
IIIgauge screwdriver
12 Video head removing tool VHJ-0041 Used to remove the upper cylinder
13 Oil VHJ-0099
14 Grease VHJ-0100
15 Grease VHJ-0101
16 Relay cables IVHJ-0106 Relay cables of mechanism and CP-1
PWB assembly
VHJ-0005,VHJOO06,VHJOO07 VHJ-0003 VHJ-0048 VHJ-0004
a&/!
No.1,2,3,4 No.5No. 6No. 7
VHJ-0016 VHJ-0102 VHJ-0014 VHJ-0045
+8 ~N410 ‘lNo.
VHJ-0041 VHJ-0099 VHJ-0100, VHJ-0101 VHJ-O1O6
_!!! l!!!!! %
No. 12 No, 13 No. 14,15 No. 16 Fig.1-2-l
–3-

1-2-2. Using the Relay Cable (VHJ-0106)
The mechanism can be repaired without using the relay
cable (VHJ-0106). As shown in Fig. 1-2-2, the relay cable
(VHJ-O1O6) is atool used for relay between the CP-I PWB
assembly and mechanism unit.
When connecting it, take note of the pin number of the
connector.
NOTE 1: Do not place the mechanism upright as shown in
Fig. 1-2-2 when inserting/ejecting the cassette.
NOTE 2: For NTSC models, be sure to connect the VM-I
PWB assembly and CP-I PWB assembly.
2. AN OVERVIEW OF THE MECHANISM
2-1. NAMES OF THE MAIN PARTS
2-1-1. CASSEITE MECHANISM ASSEMBLY
A
Under fl
\
\
CP-I PWB assembly Mechanism unit
Fig. 1-2-2
elever
pring
nion gear
/
Gear holder
Drive gear
–4–
—-
Fig. 2-1-1 —

2-1-2. TOPVIEW
Capstan brake assembly
Claaner roller aaaembly
\\ Cleaner lever IAudio R/P head aasembly
Cylinder (Drum) (ACEhead)
.— ,.— ,. .
embly
Tin
Sincl
Y
embly
//Sbr;ke I
EP aw lever \Tbrake act slide ‘Treel gear
/aaaembly /\
Tbrake asaembly Clutch mounting assembly
Sreel gear
2-1-3. UNDERSIDE
Cylinder earth
Reel belt Capatan motor aaaembly
Al 1
Harneaa mounting
Pinch cam gear II@ \YY
LX o
Mode switch (S8001)II N AA (
Brake control lever ~~~~)
h
Main cam >
Clutch chanrae Ievar
c-c_enta,ide----!b4lLXil73
///Brake ac’t lever Ii\ \
Fig. 2-1-2
,Stator
=Rotor
/Tload gear
zSload gear
>Crescent mounting
,Tload lever eeaembly
-- Sload lever aasembly
,BT spring lever assembly
—MC-1 PWB aaaambly
Whael gear 2Wheel gear 1/aeaembly IReel pulley \Sbrake act slide
Worm gear assembly Loading motor assembly Friction gear aasembly Fig. 2-1-3
-5-

2-2. AN OVERVIEW OF THE MECHANISM MODES
2-2-1. MECHANISM MODE SWITCHING TABLE
NOTE: The letters and figures enclosed in circles in the mechanism mode column are the codes on the crescent slide.
MODE SWITCH OUTPUT TABLE
HEX SW DATA SW DATA2
DATA 1x‘f z
o5.OV HHH5V
15.OV H H LOv
22.5V HLH5V
32.5V HL L Ov
43.4V LH H 5V
53.4V LHLOv
62.OV LLH5V
72.OV LLLOv
APPEARANCE OF MODE SWITCH AND
RELATIONSHIP BETWEEN MODE POSITIONS
FF/REvv ~ ~ EJECT
E
STIL
IN
CZXY Fig.z-z-l -
-6-

(S): Strength (W): Weakness
L
$Jg’ g3L
Mechanism mode qpw~
;5~Rz
KUJ
~fi ~
7~J
zg3 occ Q:$: :
Principal parts w:Jzm
i= -1 LL
3
- “ _ (n L
Tbrake assembly OFF OFF ON ON ON OFF OFF OFF OFF ON ONIOFF
Sbrake assembly OFF OFF OFF OFF OFF OFF OFF OFF OFF ON ONIOFF
Tsoft brake assembly OFF OFF ON ON ON ON ON OFF OFF OFF OFF
Ssoft lever ON ON ON ON ON OFF OFF OFF OFF OFF OFF
BT lever assembly OFF OFF OFF OFF OFF ON ON ON ON ON ON
BT spring OFF OFF OFF OFF OFF ON(W) ON(W) ON(S) ON(S) ON(S) ON(W)
Pinch roller lever assembly UP UP DOWNI ON
up ;;tWN UP OFF ON ON OFF OFF
Clutch mounting assembly PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY FF
Load lever assembly UNLO UNLO LO LO LO LO LO LO LO LO LO
Capstan brake assembly OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF
Sand Tincline mounting assembly LO UNLO
Cleaner roller assembly OFF OFF OFF (ON) (ON) OFF OFF OFF OFF OFF OFF
2-2-3. HOW TO CHECK THE MECHANISM MODE
POSITION
You can tell which mode the mechanism is currently in by The edge of the
looking at the codes and marking-lines on the crescent crescent mounting Crescentlmounting
slide ontheunderside of the mechanism chassis. The edae is the reference-line.
of the crescent mounting is used as the reference line, as
vshown in Fig.2-2-2, and the marking-lines and symbols
indicating the mechanism modes are displayed on the
crescent slide, which slides against the edge of the
crescent mounting. The mechanism mode is read off from
the marking-line on the slide crescent which is aligned
with the reference-line on the crescent mounting.
Example: In Fig.2-2-2, marking-line 6is aligned with the
reference-l ineonthecrescent mounting, sothe mechanism
is seen to be in FF/REW mode.
-2-2-4. SELF-DIAGNOSIS DISPLAY )
Some models are equipped with the SELF-DIAGNOSIS
DISPLAYS function.
Useitas ameansoffinding outthesymptoms andcauseof
the error before performing repairs.
For details, refer to the separate service manual for the
respective models.
Fig.2-2-2
–7–

3. DISASSEMBLING THE MAIN PARTS
OF THE MECHANISM
POINTS TO NOTE
●
●
●
When fitting the parts of the mechanism, refer to the
“Assembly Notes”, and proceed in the reverse of dis-
assembly order.
Dis-assembly and assembly should be carried out in
EJECT mode unless amovement mode is explicitly
specified. EJECT mode is the state in which the cassette
tape has been ejected.
Clamps are used to prevent parts coming loose. When
removing aclamp, be careful not to force it, as this can
result in damage.
3-1. HOW TO MAKE THE MECHANISM
MOVE
In order to check amovement such as front loading, front
unloading, tape loading, tape unloading, raising/lowering
and pressing the pinch roller, you will need to operate the
loading motor. There are two methods of operating the
loading motor, and these are explained in sections 3-1-1
and 3-1-2. The above movements can also be performed
without operating the loading motor, by following the
method explained in section 3-1-3.
3-1-1. HOW TO OPERATE THE LOADING MOTOR
USING A DC VOLTAGE SUPPLY
(See Fig.3-l-1)
1) Remove the power plug from the socket.
2) Remove ~he top cover, front cabinet assembly and
bottom cover.
3) Supply aDC voltage in the range 5V between the
MOTOR (+) wire and the MOTOR (-) wire on the CP-I
PWB assembly. To make the loading motor rotate in
the PLAY or FF/REW direction, the positive terminal
should be connected to the MOTOR (+) wire, and the
negative terminal to the MOTOR (–) wire. To make it
rotate in the EJECT direction, connect the positive
terminal to the MOTOR (-) wire, and the negative
terminal to the MOTOR (+) wire.
When rotating the loading motor inthe EJECT direction
with atape slacken, stop the rotation of the loading
motor before beginning front unloading.
Rotate the capstan motor with your hand, wind the
slacked part of the tape, and rotate the loading motor
in the EJECT direction again.
NOTE 1: When carrying out front loading, release the lock
by pressing down the tray lock lever@ and the lid opener
lever @of the cassette mechanism assembly (shown in
Fig.3-2-2) in the direction of the arrow.
NOTE 2: When the loading motor stops rotating, following
the completion of an operation such as tape loading or
front unloading, switch off the DC voltage supply.
Bottom side
Motor (+) wire
Motor (-) wire Front side
Fig.3-l-l
3-1-2. OPERATING THE LOADING MOTOR BY THE
MANUAL METHOD (See Fig.3-l-2)
1) Refer to section 3-2 and install the mechanism unit.
2) Using your finger, turn the loading motor located at
the rear of the mechanism unit. For EJECT, turn the
loading motor in the direction of the arrow on the
loading motor. For PLAY or FF/REW, turn it in the
opposite direction.
When rotating the loading motor in the EJECT direction
with atape slacken, stop the rotation of the loading
motor before beginning front unloading.
Rotate the capstan motor with your hand, wind the
slacked part of the tape, and rotate the loading motor _
in the EJECT direction again.
When carrying out front loading, release the lock
by pressing down the tray lock lever @and the lid
opener lever @of the cassette mechanism assembly
(shown in Fig.3-2-2).
The arrow which showtha direction of EJECT
atFig.3-l-2
d
Loading motor
3-1-3. MAKING THE MECHANISM MOVE USING
THE MANUAL METHOD
1) Refer to section 3-2 and remove the mechanism unit.
2) Refer to section 3-15 and remove the gear wheel 2.
3) If you turn the main cam anticlockwise, the mechanism
will switch to amode such as PLAY or FF/REW. To
switch from FF/REW mode to EJECT mode, turn the
main cam clockwise. L
–8–

3-2. MECHANISM UNIT
1)
—2)
3)
4)
(See Figs. 3-2-1 and 3-2-2)
Remove the top cover, bottom cover and front cabinet
assembly.
Unplug the flat cable@l from the VM-1/VP-l PWB
assembly on the cylinder (drum), and unplug the
ACE head connector@.
Remove the screw @, the two screws@, then remove
the VM-1/VP-l PWB assembly@, lifting it upwards.
The shape of the VM-1/VP-l PWB assembly and the
bracket varies according to the model.
Remove the four screws@ and the two screws@,
then lift up the mechanism unit. The tray@ will stop
you removing the two screws @on the front, so
release the Iockbypressing down the tray lock lever @
and the lid opener lever @shown in Fig.3-2-2, then
slide off the tray~. Move the tray by referring to
section 3-1 and turn the loading motor in the PLAY
direction.
@Screw
<0 IFI ““Iat cable Bracket
IA~e@Screw
-
A“ # 1A
‘k .@Screw
.. -’
.. , VM-I(VP-1)
.“Yi
PWB
assembly
@
Fig.3-2-l
3-3. CASSEITE DRIVE MECHANISM
3-3-1. CASSEITE MECHANISM ASSEMBLY
(See Figs.3-3-l and 3-3-2)
1) Put the VCR into EJECT mode.
2) Remove the two screws @).
3) Lift up the back of the cassette mechanism assembly
@slightly, and remove the two hooks@ on the front.
ASSEMBLY NOTES:
1.
2.
3.
4.
The cassette mechanism assembly and the mechanism
chassis should both be fitted in EJECT mode.
Check that the two hooks @have snapped into the
mechanism chassis, and make sure that the two holes
@in the cassette mechanism assembly are aligned
with the two dowels @on the mechanism chassis.
Make sure that the big tooth on the pinion gear of
the cassette mechanism assembly slots properly into
the deepest gap in the start rack gear, as shown in
Fig.3-3-2.
When fitting the two screws@, use the torque gauge
screwdriver (VHJ-0014). Give the screws atightening
torque of 5kg/cm.
~@Screws
Y
Mechanism
chassis
f@Hole
Fig.3-3-l
sure correct
erlocking
Lock gear I
Start rack gear
Fig.3-3-2
Fig.3-2-2
–9–

3-3-2. CASSEITE DRIVE GEAR (See Fig.3-3-3)
1) Refer to section 3-3-1 and remove the cassette
mechanism assembly.
2) Remove clampso and @, then remove the gear
holder @.
3) Remove the clampo, then remove the pinion gear@.
4) Remove the clamp@, then remove the lock gear@.
ASSEMBLY NOTES:
1. Put the tray in the EJECT mode position before fitting
any parts.
2. Apply grease (VHJ-0100) to the gear mounting shafts,
allthe gear teeth, and the cam part of the drive gear@.
3. Ensure that the drive gear, the lock gear and the pinion
gear interlock correctly, as shown in Fig.3-3-2.
4. Make sure the clamps@) and @snap in to the gear
holder @.
$)$@
A
“I , %J~epiniongear
q(grease
the outer rim
-Q._R of the teeth)
.
T
@Gear holder
Fig.3-3-3
3-3-3. DOOR OPENER, UNDER FRAME AND
1)
2)
3)
4)
STAND L(See Fig.3-3-4)
Remove the cassette mechanism assembly, referring —
to section 3-1.
Remove the two clamps @and take out the under _
frame @, pulling it towards you.
Press down the tray lock lever @and the lid opener
lever@, and loosen the tray@, lifting it away from you.
In this state, press the clampo and remove the door
opener Iever@.
Remove the two clamps@ and take out the stand L@.
Be careful not to exert too much force on the clamps
@, as this could cause damage.
ASSEMBLY NOTES:
1. Apply grease (VHJ-0100) to the grooves @on the
stand L, the inside of the hole@ in the drive shaft@,
and the mounting hole@ in the door opener lever of
the stand R.
2. Before fitting the stand Lo, be sure to move the
tray@ back as far as the EJECT mode position. Put the
two pins @l on the tray@ into the grooves@ on the
stand L. Put the drive shaft@ into the hole@.
3. Be sure to fasten the two clamps@ and the clamp@
on the stand R, and to fasten the two clamps @on
the stand L.
@.tand L
@Hole @!-
Pinsl
er
@
amps
R
@Clamp
Fig.3-3-4
–lo–

3-3-4. START RACK GEAR AND FRONT RACK GEAR
.- 1)
2)
3)
4)
5)
(SeeFigs.3-3-5 and 3-3-61
Remove the mechanism unit, referring to section 3-2.
Remove the cassette mechanism assembly, referring
to section 3-3-1.
Remove the special screw o. When you do this, slide
the front rack gear assembly@ towards the front until
it stops, then take it off the shafto. Take care not to
damage the shaft@.
Remove the spring @.
Remove the clamp@ on the front rack gear@, then
remove the start rack gear @.
ASSEMBLY NOTES:
1.
2.
3.
Apply grease (VHJ-0100) to the front rack gear@ and
all over the inside of the groove on the start rack
gearo.
Align the positioning mark@ on the front rack gear@
with the mark @on the main cam ~.
When installing the cassette mechanism assembly,
refer to section 3-3-1 and align the start rack gear with
the pinion gear. @Front rack gear
!ap.ply grease to
y@Ins;de of groove)
J
;Shaft @Front rack
/-,+x, ‘-;’:.. gear assembly
@Clamp ,* ,.., .- ‘-
.,..,.
,,~ ““’~.(
>.,”
\
,.-,-
*A
‘y ,. -%..
/ .....’”--’’”-”” ..
,..-““””‘“2 ,...””’;;
,..,
,,,
.,-
... ‘1
$@’”
...” /.-
..... .\
... ~fl&/ ,...”’-” @Spring
%.
p
,..
‘%..,.,
....> ,.
... ..-”
....... ,.,”
... .,.-’ ‘Y
.,.
\@Special screw
@Start “rack gear
~apply grease to
mslde of groove)
Flg.3-3-5
@Positio~ing mark
@Positioning mark
@lMain cam
3-4. CLEANER ROLLER ASSEMBLY
(See Fig.3-4-1)
1) Remove the clamp@ and take out the cleaner lever@.
When you do this, be careful not to bend the p!astic
springs @and @on the cleaner lever@.
2) Remove the clamp o, and take out the cleaner roller
assembly@. Becarefui nottotouch the sponge on the
cleaner roller assembly@.
ASSEMBLY NOTES:
1. When mounting the cleaner lever@ on the shaft@,
press the clamp@ in the direction shown by the
arrow, and snap it into the mounting @on the audio
RIP head assembly.
~o
-4Cleaner roller assembly
3-
-@Clamp
-@Cleaner lever
~@ Clamp
_@Plastic spring
@Plastic spring -
Shaft
*7i?\
‘Mounting
Fig.3-4-l
.,,
F.
Fig.3-3-6
–11–

3-5. CYLINDER (DRUM)
3-5-1. UPPER CYLINDER ASSEMBLY
(UPPER DRUM) (See Figs. 3-5-1,3-5-2,3-5-3,
3-5-4)
There are two types of cylinders, one that can be
disassembled into the upper cylinder (upper drum) and
lower cylinder (lower drum) and one that cannot. For that
typethatcannot, replace thecylinder assembly asawhole.
1)
2)
3)
4)
Remove the two screws @(See Fig.3-5-1).
First, tighten the handle@ of the video head
removing tool (VHJ-0041), then screw the two long
screws @evenly into the two screw holes @in the
upper cylinder assembly (upper drum) @) (See Fig.
3-5-2).
Hold the tool (VHJ-0041) so that the upper cylinder
assembly (upper drum) @does not rotate, and at the
same time, turn the handle@ clockwise, and remove
the upper cylinder assembly (upper drum)@.
Remove the tool (VHJ-0041) from the upper cylinder
ASSEMBLY NOTES:
1. When carrying out assembly, the CH-I head on the
upper cylinder assembly (upper drum)@ and the lower
cylinder assembly (lower drum) @must be aligned.
The CH-1 head on the upper cylinder assembly@ bears _
acode@ such as 2N2S-V, 2N4N, or 4H6N, as shown in
Fig.3-5-3. The CH-I on the lower cylinder assembly@
has around hole o, as shown in Fig.3-5-4. Assemble
the parts so that the round hole @l is next to the code
@on the upper cylinder assembly.
2. Be careful not to scratch the tape path surface of the
cylinder. After replacing the cylinder, clean the tape
path surface of the cylinder.
3. After replacing the upper cylinder assembly, dothetape
path adjustment as instructed in section 4-3 and do the
switching position adjustment of the servo circuit.
@Upper cylinder assembly
(upper drum)
assembly @.
@Screws
Fig.3-5-3 _
[EXCEPTFOR2-HEADMONAURALMODELS]
eA@ROundhO’
Fig.3-5-l
.---------------
I
m
!- Video head removing tool
@Handle &~‘vHJ-004’)
1
I
@
Screw
holes /
*DJ]
‘~ ‘@’ @Upper cylinder assembly
k(upper drum)
@Lower cylinder assembly
(lower drum)
Fig.3-5-2
y%
a$ @Lower cylinder
0’ -assembly
A(lower drum)
W/ ‘Screw holes
@Round
[2-HEAD MONAURAL MODELS ONLYI
Lower cylinder
assembly
(lower drum)
w
d
Fig.3-5-4
–12-

3-5-2. CYLINDER (DRUM) UNIT (See Fig.3-5-5)
1) Put the mechanism into EJECT mode.
2) Refer to section 3-2 and remove the VM-1/VP-l PWB
assembly
3) Refer to section 3-4 and remove the cleaner lever.
4) Remove the two screwso and take off the bracket @.
The bracket shape varies according to the model.
5) Remove the three screws@. Taking care not to
scratch or soil the tape path surface of the cylinder
(drum), lift the mounting cylinder@ slightly, and
keeping it raised.
ASSEMBLY NOTES:
1.
2.
3.
L
4.
Apply grease (VHJ-0100) to the rails (front and rear) of
the cylinder mounting@ (grease the parts which come
in contact with the Sand Tincline mounting assembly).
Align the two dowels@ on the mounting cylinder
@with the two holeso on the mechanism chassis.
Check that connector is inserted in the CP-I PWB
assembly.
After assembly, clean the tape path surface of the
cylinder (drum).
After replacing the cylinder unit, do the tape path
adjustment as instructed in section 4-3, and do the
switching position adjustment of the servo circuit.
@lScrew
./ \ @Bracket (shaDe varies
e5\- “model)
@Cyiinder
II_= mounting
3-5-3. CYLINDER MOTOR (ROTOR AND STATOR)
(See Fig.3-5-6)
1) Refer to section 3-5-2 and remove the cylinder unit.
2) If you have removed the mechanism unit, remove the
screw @and remove the cylinder earth assembly@.
3) Remove the two screws@, the rotor@ and the
spacer @.
4) Remove the three screws@ and the stator @.
ASSEMBLY NOTES:
1.
2.
3.
4.
When fitting the rotor@, align the long hole~ -beside
the triangular mark on the rotor@ -with the hole @
in the rotor disk.
When fitting the screws@ and @, use the torque
gauge screwdriver (VHJ-0014). give the screws a
tightening torque of 3kglcm.
Align the dowel (@ on the cylinder earth assembly@
with the hole @in the chassis.
if you have removed the cylinder unit, after assembly,
do the tape path adjustment as instructed in section
4-3, and do the switching position adjustment of the
servo circuit.
@Screws
/9 @lLong hole (used for
&
@Rot~ alignment when fitting
@the rotor)
A
‘> Triangularmark
*YV J@Screws
to r
1
@Cylinder
Wspacer ~! earth
~@Dow$ assembly
/
~Ho,e6s:=// ‘@Ho’e
when fitting the rotor)
Fig.3-5-6
L
L
Fig.3-5-5
–13-

3-5-4. CYLINDER ASSEMBLY (See Fig.3-5-7)
1) Refer to sections 3-5-2 and 3-5-3, and remove the
cylinder unit, the rotor, and the stator.
2) Remove the three screws@ and the cylinder
assembly @.
ASSEMBLY NOTES:
1. Be careful not to scratch or soil the top of the cylinder.
After fitting the cylinder, clean the surface.
2. Align the cylinder assembly@ with the two dowels@
on the cylinder mounting @.
3. After fitting the cylinder assembly, do the tape path
adjustment as instructed in section 4-3 and do the
switching position adjustment of the servo circuit.
,------------------------------------------ ,
IGI
o
m“ ~—
\,
u\
,-----------......-------------.........J
\
@Cylinder
assembly
@Dowels
@cy rews
mo
Fig.3-5-7
3-6. FE HEAD AND ACE HEAD
3-6-1. AUDIO R/P HEAD ASSEMBLY (ACE HEAD)
(See Fig.3-6-1)
1) Unplug the connector from the audio R/P head
assembly (ACE head).
2) Remove the two screws@ and the audio RIP head
assembly (ACE head) @.
ASSEMBLY NOTES:
1.
2.
3.
4.
Align the holeo on the audio R/P head assembly
(ACE head) with the pin@ on the chassis unit.
After assembly, check that the clamp@ on the cleaner
roller assembly has snapped into the mounting of
the audio R/P head assembly (ACE head) @.
After assembly, clean the surface of the head with a
soft cloth or chamois.
After assembly, refer to section 4-3, and adjust the
head height, the azimuth and the tracking (X) position.
R/P head assembly
cad)
@Hole
Fig.3-6-l
3-6-2. FULL ERASE HEAD (See Fig.3-6-2)
1) Unplug the connector from the full erase heado.
2) Remove the screw@ and the full erase heado.
ASSEMBLY NOTE:
1. After assembly, clean the full erase head~.
@Screw
@Full erase head -.
I
Fig.3-6-2
–14–

3-7. CAPSTAN MOTOR 3-7-2. CAPSTAN BRAKE ASSEMBLY (See Fig.3-7-2)
1) Remove the spring o.
3-7-1. CAPSTAN MOTOR (See Fig.3-7-l )2) Remove the clamp@, then remove the capstan brake
1) Refer to section 3-2, then remove the mechanism unit. assembly o.
2) Remove the two screws@, then remove the harness
mounting 0.
3) Remove the reel belt~.
4) Remove the three screws@ and the capstan motor@.
ASSEMBLY NOTES:
1. Check that connector@ is inserted in the CP-I PWB
assembly.
2. When fitting the three screwso, use the torque
gauge screwdriver (VHJ-0014). Give the screws a
tightening torque of 3.5 kglcm.
3. After assembly, clean the capstan shaft with asoft
cloth or chamois.
@Screws
‘1
CaDstan shaft I&
\
<. \~ (@Capstan
—
@Spring
,/
Fig.3-7-2
@Reei belt @;creks
Fig. 3-7-1
–15–

3-8. LOADING MOTOR ASSEMBLY AND
1)
2)
3)
4)
WORM GEAR ASSEMBLY
(See[email protected])
Refer to section 3-2 and remove the mechanism unit.
Remove the soldering on the lead wires@ of the
loading motorassemblyfrom the MC-1 PWBassembly.
When you do this, be careful not to let the soldering
iron touch any other parts.
Press the clamp @, and remove the loading motor
assembly@l and the damper@. Be careful not to exert
too much force on the clamp@.
Remove the worm gear assembly@. To maintain
performance, do not dis-assemble the worm gear
assembly @.
ASSEMBLY NOTES:
1.
2.
3.
Apply grease (VHJ-0010) to the teeth of the worm gear
assembly.
Check that the clamps@ and @are securing the
loading motor assembly.
Check the polarity of the lead wires@ (the orange
wire is the positive terminal, and the gray wire is the
negative terminal). After soldering the lead wires@,
adjust them so that they do not touch the friction gear
assembly.
@Worm gear assembly
p@Damper
\
Apply @Loading motor assembly
‘~rease
\, ~@Lead wires
]@/
Clamps
Ii [\ \Gray:
~N
negative
L
‘> Orange:
positive
_@ Clamp
3-9. PINCH ROLLER PRESSURE
MECHANISM
3-9-1. PINCH ROLLER LEVER ASSEMBLY
1)
2)
(See Fig.3-9-1)
Remove the clamp o, then remove the pinch lift
mounting @.
Remove the spring o, then remove the pinch roller
lever assembly@ offthepinch lift mounting@. Before
you do this, align the Indentation@ on the pinch roller
lever assembly@ with the clamp@ on the pinch lift
mounting @.
ASSEMBLY NOTE:
1. Be careful to keep the surface of the pinch roller free
of dust and dirt.
@Pinch roller lever @Spring
assembly I
@lndent~tion
@Clamp
lift mounting
A,,-
.----...,l= @ClamP
(.--- r,
h’
Fig.3-9-l
.
Fig.3-8-l
–16-

3-9-2. PINCH LIIT CAM AND PINCH CAM GEAR
1)
2)
3)
4)
5)
(See Figs.3-9-2 and 3-9-3)
Refer to section 3-2 and remove the mechanism unit.
When you do this, make sure the mechanism is in
EJECT mode.
Refer to section 3-9-1 and remove the pinch roller
lever assembly.
After removing thescrewo, undo thethreeclamps@,
then remove the opener mounting o.
Remove the clamp @and the pinch lift cam@.
Remove the pinch cam gear @.
L
<.
ASSEMBLY NOTES:
1. Apply grease (VHJ-0100) around the shafto, all over
the teeth @of the pinch cam gear ~, all over the
teeth of the pinch lift cam@, all over the cam grooves
@, and all over the “V Part@” of the opener mounting
@. APPIY 9rease WHJ-0101) to the outside of the
shaft @and all over the top cam @of the pinch cam
gear@.
2. Check that the positioning mark@ on the mode
uswitch@ isalignedwith the arrow@) on the MC-1 PWB
assembly, as shown in Fig:3-9-3. Then align the
triangular mark @on the pinch cam gear@ with the
arrow @on the MC-1 PWB assembly. After that,
align the round hole @on the pinch lift cam @with
the indentation @on the pinch cam gear@,
If you have carried out the above alignments and the
pinch roller will still not move up and down or perform
the pressing movement correctly, refer to section
3-15 and check the alignment of the gear wheels 1
and 2, the main cam, and the mode switch.
00
m
u
cam
@
Fig.3-9-2
Q)11Arrow on MC-1 PWB
2°
assembly
@positioning marks
•*~~ on mode switch
@Pinch lift cam
/
10(__’#dentati~
@Triang.larmark ,~~ @Ro.nd hole
@Mode switch @)Pinch cam gear
Fig.3-9-3
–17–

3-10. LGUIDE LEVER ASSEMBLY AND 3-n, BT LEVER ASSEMBLY (See Fig.3-11-1)
1)
2)
3)
4)
LOAD LEVER ASSEMBLY
(See[email protected])
Refertosection 3-3 and remove the cassette mechanism
assembly.
Refer to sections 3-9-1 and 3-9-2 ,then remove the pinch
roller lever assembly and the opener mounting.
After removing the washer @, remove the Lguide
act lever assembly@.
Remove the special nut@, then remove the load lever
assembly @and the Lguide lever spring@.
ASSEMBLY NOTES:
1)
2)
3)
4)
Apply grease (VHJ-0100) to the toothed area@ of the
Lguide act lever assembly@ and around the shafts
@and@,
Refer to section 4-3 and adjust the height of the load
lever assembly.
Hook the Lguide lever spring@ into the stopper @
and load lever assembly@ shown in Fig. A.
Put the pin @of the Lguide act lever assembly into
the cam groove @of the crescent slide.
@L guide lever spring
e
Fig. A
(@Special nut
@Load lever% ‘7 o
assembly
‘\
%
@Load lever assembly
@L guide lever spring ~
o
assem:b&
@L guide
act lever
@pin ‘>
i
~@Shaft
@Cam groov
e
@Stopper
/
1)
2)
3)
4)
5)
Refer to section 3-2 and remove the mechanism unit.
Refer to section 3-3-1 and remove the cassette —
mechanism assembly.
Remove the BT spring@.
Remove the clamp@ on the underside of the –
mechanism chassis, then remove the BT lever
assembly @.
Remove the clamp @on the band brake assembly@.
Then, as shown in Fig. A, align the other end of the
band brake assembly with the protruding parts of the
BT lever assembly@ before removing it.
ASSEMBLY NOTES:
1.
2.
3.
4.
When fitting the BTleverassembly@, be careful not to
bend the stopper@ or the Sincline mounting
assemblyo out of shape by knocking it against them.
Hookthe long hook of the BTspring@ into the BTlever
assembly@, as shown in Fig. B.
After assembly, make sure that the mountings on
both ends of the band brake assembly@ are
positioned as shown in Fig. C.
Afier assembly, refer to section 4-2-1, and make the
appropriate adjustment.
Prot
part
Fig.3-l 1-1
Fig.3-10-l
.-
–18–

3-12. REEL DRIVE MECHANISM A—
3-12-1. REEL BELT, REEL PULLEY, FRICTION GEAR
1)
2)
3)
4)
5)
6)
ASSEMBLY AND CLUTCH CHANGE LEVER
(See Fig.3-12-1)
Refer to section 3-2 and remove the mechanism unit.
Remove the reel belto from the reel pulley@.
Take off the washer@ and remove the reel pulley@.
Take off the washer @and remove the friction gear
assembly @.
Remove the clutch change spring @.
remove the clamp@ gripping the top of the
mechanism chassis, then remove the clutch change
Iever@.
ASSEMBLY NOTES:
1. After cleaning the shaftso and@, apply adrop of oil
(VHJ-0099) to each.
2. Be careful not to get any grease on the reel belto.
@Clutch
spring
@Clam ngear
bly
Fig.3-12-l
3-12-2. CLUTCH MOUNTING ASSEMBLY
(See Fig.3-12-2)
1) Refer to section 3-3-1 and remove the cassette
mechanism assembly.
2) Refer to section 3-12-1 and remove the reel pulley.
3) Remove the two screws @, then remove the clutch
mounting assembly @.
ASSEMBLY NOTES:
1. Align the two holes @with the shafts @l and @. Be
careful not to press part Aof the clutch mounting
assembly @against the band brake assembly.
2. After assembly, make sure that the clamp on the
clutch change lever has snapped into the chassis.
+x’ WScrews
Part A
,79
1
i
+
,,--,$,
@Hole “~“ 0@Hole
%.R
v_@Clutch
mounting
assembly
@Shaft
Fig.3-12-2
3-12-3. SSOtT LEVER, SUPPLY REEL ASSEMBLY
AND SREEL GEAR (See Fig.3-12-3)
1) Remove the Ssoft spring @).
2) Remove the clamp@, then remove the Ssoft Iever@).
3) Refertosection 3-12-2 and remove theciutch mounting
assembly.
4) Refer to section 3-11 and remove the band brake
assembly, then remove the supply reel assembly @
and the Sreel gear@.
ASSEMBLY NOTES:
1. After cleaning the shafts@ and o, apply adrop of oil
(VHJ-0099) to each.
2. After assembly, clean the side of the supply reel
assembly @.
OS soft lever @Supply reel
assembly
@Clamp
\I
@S reel
gear
msoft
spring
aft
Fig.3-12-3
–19-

3-12-4. TSOFT BRAKE ASSEMBLY, TAKE UP REEL
ASSEMBLY, TREEL GEAR (See Fig.3-12-4)
1) Remove the Tsoft spring@.
2) Remove the clamp @,then remove the Tsoft brake
assembly @.
3) Refer tosection3-12-2 and remove the clutch mounting
assembly.
4) Pressing the Tbrake assembly@ in the direction of the
arrow, remove the take up reel assembly@ and the T
reel gear 6.
ASSEMBLY NOTE:
1. After cleaning the shaftso and @), apply adrop of oil
(VHJ-0099) to each.
@T reel gear
b
o
J&.
@T brake
assembly,
\l
Take up reel
assembly
I@lT soft brake
sembly
Tsoft
spring
Fig.3-12-4
3-13. BRAKES
3-13-1. SBRAKE ASSEMBLY, TBRAKE ASSEMBLY,
TBRAKE ACT SLIDE (See Fig.3-13-l )
1) Refer to section 3-3-1 and remove the cassette _
mechanism assembly.
2) Remove the two clamps o, then remove the Tbrake
act slide @. (Note: You can remove the Sbrake
assembly @and the Tbrake assembly @without
removing the Tbrake act slide @.)
3) Remove the brake spring o.
4) Remove the two clamps @) simultaneously, then
remove the Tbrake assembly@.
5) Remove the clamp@, then remove the Sbrake
assembly @.
ASSEMBLY NOTES:
1. Apply grease (VHJ-0100) to the shafts@ and@.
2. When fitting the Tbrake act slide@, align the mark@)
with the shafto.
@Mark @T,brake act slide
d
-.
@Brake spring ‘clamp
/’; \
Il.
Clamp
@T brake
assembly
OS brak~
assembly
Fig.3-13-l
-20-