JVC NX-MD1R User manual

COMPACT COMPONENT MD SYSTEM
NX-MD1R / NX-MD1
NX-MD1R/NX-MD1
No.21041
Oct. 2001
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
Contents
Safety precautions
Preventing static electricity
Important for laser products
Disassembly method
Adjustment method
(CD/MD section)
Flow of functional operation until
TOC read (CD)
Flow of functional operation until
TOC read (MD)
Maintenance of laser pickup (CD)
Replacement of laser pickup (CD)
Maintenance of laser pickup(MD)
Replacement of laser pickup(MD)
Description of major ICs
1-2
1-3
1-5
1-6
1-32
1-37
1-38
1-39
1-39
1-40
1-40
1-41~68
SERVICE MANUAL
CA-NXMD1R/CA-NXMD1 SP-NXMD1SP-NXMD1
Area suffix [NX-MD1]
A ------------------------ Australia
US -------------------- Singapore
UB ------------------- Hong Kong
UP -------------------------- Korea
Area suffix [NX-MD1R]
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe

NX-MD1R/NX-MD1
1-2
1. This design of this product contains special hardware and many circuits and components specially for safety
purposes. For continued protection, no changes should be made to the original design unless authorized in
writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services
should be performed by qualified personnel only.
2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product
should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further
relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.
3. Many electrical and mechanical parts in the products have special safety-related characteristics. These
characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily
be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in the Parts List of Service Manual. Electrical
components having such features are identified by shading on the schematics and by ( ) on the Parts List in
the Service Manual. The use of a substitute replacement which does not have the same safety characteristics
as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or
other hazards.
4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be
separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of
electric shock and fire hazard. When service is required, the original lead routing and dress should be
observed, and it should be confirmed that they have been returned to normal, after re-assembling.
5. Leakage currnet check (Electrical shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the product
(antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the
product is safe to operate without danger of electrical shock.
Do not use a line isolation transformer during this check.
Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage
current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return
path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).
Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more
sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part,
particularly any exposed metal part having a return path to
the chassis, and meausre the AC voltage across the resistor.
Now, reverse the plug in the AC outlet and repeat each
measurement. Voltage measured any must not exceed 0.75 V
AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
1. This equipment has been designed and manufactured to meet international safety standards.
2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
3. Repairs must be made in accordance with the relevant safety standards.
4. It is essential that safety critical components are replaced by approved parts.
5. If mains voltage selector is provided, check setting for local voltage.
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE
!
Burrs formed during molding may
be left over on some parts of the
chassis. Therefore, pay attention to
such burrs in the case of
preforming repair of this system.
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(Except the J and C version)

NX-MD1R/NX-MD1
1-3
Preventing static electricity
1. Grounding to prevent damage by static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged,
can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
2. About the earth processing for the destruction prevention by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.
Be careful to use proper grounding in the area where repairs are being performed.
2-1 Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.
2-2 Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
3. Handling the optical pickup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power
source can easily destroy the laser diode.
4. Handling the traverse unit (optical pickup)
1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
2. Remove solder of the shorting round on the flexible wire after replacing the optical pickup. For specific
details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse
unit. Be careful not to take too long a time when attaching it to the connector.
3. Handle the flexible wire carefully as it may break when subjected to strong force.
4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
Conductive material
(conductive sheet) or iron plate
(caption)
Anti-static wrist strap

NX-MD1R/NX-MD1
1-4
1.Short the shorting round before the flexible wire is removed from connector CN321 on the MD servo board
as shown in Figure.
(When the wire is removed without putting up solder, the MD pick-up assembly might destroy.)
2.Please remove solder after connecting the flexible wire with when you install picking up in the substrate.
*Please refer to "Disassembly method" in the text for pick-up and how to detach the substrate.
5. Attention when MD traverse unit is decomposed
6. Attention when CD traverse unit is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to detach the substrate.
1.Short the s
horting round before the flexible wire is removed from connector CN601 on the CD servo board
as shown in Figure.
(When the wire is removed without putting up solder, the CD pick-up assembly might destroy.)
2.Please remove solder after connecting the flexible wire with when you install picking up in the substrate.
*Please refer to "Disassembly method" in the text for pick-up and how to detach the substrate.*Please refer to "Disassembly method" in the text for pick-up and how to detach the substrate.
CN321
Pickup Shorting round
MD servo control board
Shorting round
CN601
CD servo board

NX-MD1R/NX-MD1
1-5
Important for laser products
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The compact disc player uses invisible
laserradiation and is equipped with safety switches
whichprevent emission of radiation when the drawer is
open and the safety interlocks have failed or are de
feated. It is dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
VARNING : Osynlig laserstrålning är denna del är öppnad
och spårren är urkopplad. Betrakta ej strålen.
VARO : Avattaessa ja suojalukitus ohitettaessa olet
alttiina näkymättömälle lasersäteilylle.Älä katso
säteeseen.
ADVARSEL : Usynlig laserstråling ved åbning , når
sikkerhedsafbrydere er ude af funktion. Undgå
udsættelse for stråling.
ADVARSEL : Usynlig laserstråling ved åpning,når
sikkerhetsbryteren er avslott. unngå utsettelse
for stråling.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
CLASS 1
LASER PRODUCT
!
CAUTION
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
CLASS 1
LASER PRODUCT

NX-MD1R/NX-MD1
1-6
Removing the top cover
(See Fig.1 and 2)
1.
2.
3.
Remove the four screws Aattaching the top cover
from the back side of the main body.
Remove the two screws Battaching the top cover
from the both sides of the main body.
Remove the top cover from the main body while
lifting up the back side of the top cover.
1.
2.
3.
Prior to performing the following procedure, remove
the top cover.
Remove the nine screws Cattaching the rear cover
from the back side of the main body.
Set the speaker and antenna terminals to the
locked condition.
Disengage the claws aof the rear cover from the
chassis and remove the cover toward the rear.
Removing the rear cover (See Fig.3)
<Main body section>
Disassembly method
B
Fig.1
Fig.2
Fig.3
A
Top cover
A
Antenna terminal Rear cover
C
Claw a
Speaker terminal
C
Claw a
Top cover

NX-MD1R/NX-MD1
1-7
Removing the system control board
(See Fig.4)
Removing the main amplifier board
(See Fig.5 and 6)
Fig.5
Fig.4
Fig.6
1.
2.
3.
4.
5.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Remove the screw Dattaching the card wire
support board, then remove the card wire support
board.
Disconnect the card wires from connectors CN602
and CN605 on the system control board.
Remove the two screws Eand screw Fattaching
the system control board.
Disconnect connectors CN603 and CN604 on the
system control board from the connector CN693 on
the regulator board and the CN694 on the repeater
board respectively.
Disconnect the wire from connector CN601 on the
system control board.
1.
2.
3.
4.
5.
6.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Disconnect the card wires from connectors CN661,
CN695 and CN511 on the main amplifier board.
Remove the protector, then remove the screws G
attaching the main amplifier board.
Remove the screw Hand screw Iattaching the
main amplifier board.
Remove the screw Jattaching the heat sink from
the back side.
Disengage claw bon the heat sink and disconnect
the connectors CN901 and CN904 on the main
amplifier board, from connector CN991 on the
repeater board and connector CN994 on the
regulator board respectively.
Disconnect the wire from connector CN301 on the
main amplifier board.
CN904
E
CN601
CN301
CN901
Main
amplifier
board
CN604
F
CN605
CN602
CN603
Card wire support board
D
System control board
G
J
HI
CN695 CN511 CN661 Protector
Claw b
Regulator board
E

NX-MD1R/NX-MD1
1-8
Removing the regulator board
(See Fig.7)
Removing the AC jack board
(See Fig.8)
Fig.8
Fig.7
1.
2.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Remove the two screws Kand two screws L
attaching the regulator board.
Disconnect the wires from connectors CN903 and
CN995 on the regulator board.
1.
2.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Prior to performing the following procedure, remove
the regulator board.
Remove the screw Mattaching the AC jack board.
Disconnect the wire from connector CN921 on the
AC jack board.
K
L
CN995
Regulator
board
CN903
M
AC jac
k
board
CN921
Voltage
Selector
LF901 F9001

NX-MD1R/NX-MD1
1-9
Removing the MD mechanism
assembly (See Fig.9)
Removing the fan motor assembly and
fan motor (See Fig.10 and 11)
Fig.9
Fig.10
Fig.11
1.
2.
3.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Remove the two screws Nand two screws P
attaching the MD mechanism assembly.
(Caution) When assembling, attach the screws N at
the point cso that it also fixes the earth wire.
Disconnect the card wire from connector CN512 on
the repeater board.
Disengage the hook dfrom the MD mechanism
assembly and lift the rear of the assembly to
remove it.
1.
2.
3.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Prior to performing the following procedure, remove
the regulator board.
Prior to performing the following procedure, remove
the MD mechanism assembly.
Remove the four screws Qattaching the fan motor
assembly from the both sides of the sub chassis.
Remove the fan motor assembly to the top side.
Remove the two screws Rattaching the fan motor,
then remove the fan motor.
(Caution)When assembling, attach the screws R
so that they also fix the shield together
with the fan motor assembly.
N
P
Hook d
Earth wire
R
Fan motor
CN512
MD mechanism
assembly
Point c
QQQQ
Sub chassis
Shieid
Fan motor
assembly

NX-MD1R/NX-MD1
1-10
Removing the power board
(See Fig.12)
Removing the repeater board
(See Fig.12)
Fig.12
1.
2.
3.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Prior to performing the following procedure, remove
the regulator board.
Prior to performing the following procedure, remove
the MD mechanism assembly.
Prior to performing the following procedure, remove
the fan motor assembly.
Remove the four screws S attaching the power
board from the left and right side of the sub
chassis.
Disconnect the wire from connector CN921 on the
AC jack board.
Remove the power board in an upward direction.
1.
2.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Prior to performing the following procedure, remove
the MD mechanism assembly.
Remove the two screws Tattaching the repeater
board.
Disconnect the card wire from connector CN691 on
the repeater board.
(Caution) When assembling, fit the two claws of
the sub chassis into the two rectangular
holes eof the repeater board, before
attaching it.
Repeater
board
Clow e
CN691
Claw e
Sub chassis
CN921
Power board
S
S
T

NX-MD1R/NX-MD1
1-11
Removing the CD mechanism
assembly (See Fig.13 and 14)
Fig.13
1.
2.
3.
4.
5.
6.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Prior to performing the following procedure, remove
the AC jack board.
Prior to performing the following procedure, remove
the MD mechanism assembly.
Remove the four screws U attaching the sub
chassis from the left and right side of the bottom
chassis.
Remove the screw V attaching the sub chassis.
Disconnect the card wire from connector CN691 on
the repeater board.
Remove sub chassis cover with regulator board
and fan motor assembly in the direction of the
arrow.
Remove the three screws Wattaching the CD
mechanism assembly.
Disconnect the card wire from connector CN606 on
the CD servo board.
Remove the CD mechanism assembly while lifting
the rear part of it.
Fig.14
WW
W
CD mechanism
assembly
V
U
U
Sub chassis
Fun motor assembly
Regulator
board
CN606
CN691

NX-MD1R/NX-MD1
1-12
Removing the front panel assembly
(See Fig.15)
Fig.15
1.
2.
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the system control board.
Prior to performing the following procedure, remove
the main amplifier board.
Prior to performing the following procedure, remove
the MD mechanism assembly.
Remove the two screws X attaching the front panel
assembly from bottom side of the bottom chassis.
Release the three claws fon the bottom side of the
main body using screwdriver, and detach the front
panel assembly toward the front.
X
Front panel assembly Bottom chassis
Claw f

NX-MD1R/NX-MD1
1-13
Removing the front board (See Fig.16)
1.
2.
3.
4.
Remove the two screws Yattaching the MD
bracket.
Remove the MD bracket.
(Caution) When assembling, fit the rib of the front
panel into the location hole gon the MD
bracket before attaching it.
Remove the eight screws Zattaching the front
board.
Remove the front board.
(Caution) When assembling, fit the rib of the front
panel into the location hole hon the
front board before attaching it.
Prior to performing the following procedure, remove
the front panel assembly.
<Front panel assembly section>
Fig.16
Removing head phone & USB board
(See Fig.16)
1.
2.
3.
Remove the wire from two wire holders i.
Remove the two screws AA attaching the head
phone & USB board.
Remove the head phone & USB board.
Z
Z
Y
Z
Wire holder i
AA
Wire holder i
Front board
Head phone & USB board
Location hole g
Location hole h
Location hole h
Location hole g
MD bracket

NX-MD1R/NX-MD1
1-14
Removing the MD mechanism
assembly (See Fig.17)
1.
2.
3.
4.
5.
Remove the screw AB attaching the earth plate
board.
Remove the card wire on the MD mechanism
assembly.
Disconnect the card wire from connector CN522 on
the MD servo board, then remove it.
Remove the four screws AC attaching the MD
bracket from left and right side of the MD
mechanism assembly.
Remove the MD bracket to the bottom side.
<MD mechanism assembly section>
Fig.17
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
Prior to performing the following procedure, remove
the MD mechanism assembly.
CN522 MD bracket
Card wire
Card wire
Earth plate board
ACACAB

NX-MD1R/NX-MD1
1-15
Pull out the saran net toward the front while
disengaging the four joints a.
Insert the tip of a flat-bladed screwdriver or a similar
tool into the joints bbetween the main body and the
front cover from the bottom of the main body.
Lift the front cover little by little to remove.
Remove the front cover toward the front and
disconnect the yellow and black wires from the two
tweeter speaker terminals.
1.
2.
3.
4.
Removing the front cover (See Fig.1 to 3)
Note : Avoid replacing individual parts.
Fig.1
Fig.3
Joints a
Joints b
Joints a
Saran net
Fig.2
Front cover
Tweeter speaker
Front cover
<Speaker section>

NX-MD1R/NX-MD1
1-16
Prior to performing the following procedure, remove
the front cover.
Remove the four screws Aon the front of the body.
Pull out the woofer speaker toward the front and
disconnect the wire (yellow and black,blue and
black) from the two speaker terminals.
1.
2.
Removing the woofer speaker (See Fig.4)
Prior to performing the following procedure, remove
the front cover.
Remove the two screws Battaching the tweeter
speaker on the back of the front cover.
1.
Removing the tweeter speaker
(See Fig.5)
Fig.4
Fig.5
Woofer speaker
A
A
Tweeter speaker
Front cover
B

NX-MD1R/NX-MD1
1-17
Note: When drawing out the tray, shift down the
TRAMECHA assembly to the position where
the tray does not contact the T-T assembly
of the TRAMECHA assembly.
Note: When reinstalling the tray:
Turn the idle gear so that the part bof the
tray gear is positioned in the part cshown in
Fig. 4. (Eject position)
Engage the right and left hooks dand eof
the tray with the right and left grooves of the
TRAMECHA assembly respectively for
retaining the tray.
<CD Mechanism Assembly>
Removing the CL. Base Assembly and
Tray (Refer to Figs. 1 to 5.)
1. Remove the two screws Afastening the CL. base
assembly from the top of the CD mechanism
assembly.
2. Move the CL. base assembly diagonally upwards
as indicated by the arrow to release it from the two
hooks a.
3. Turn the idle gear in the arrow-marked direction
from the upper side of the CD mechanism
assembly. Accordingly, the TRAMECHA assembly
moves downwards.
4. Draw out the tray frontwards for removing it.
Fig. 1
Fig. 2
Fig. 3
Fig. 4Fig. 5
A
CL. base assembly
A
Hook a
Hook a
Idle gear
TRAMECHA
assembly
Tray
TRAMECHA assembly
Idle gear
Tray
Tray gear
Part c
Idle gear
Tray gear
Hook e
Hook d
Tray Part b

NX-MD1R/NX-MD1
1-18
Reference: The TRAMECHA assembly can be
removed without removal of the
mechanism P.C. board.
Note: When reinstalling the TRAMECHA assembly:
Check to see if the spring is properly
engaged with groove of the CH. base
assembly in the part gof the TRAMECHA
assembly.
After making sure that the three insulators of
the TRAMECHA assembly are properly set
on the bosses of the L. base assembly's
guide, fasten them with the screws.
Removing the TRAMECHA Assembly
(Refer to Figs. 6 to 9.)
Remove the CL. base assembly and tray.
1. If the TRAMECHA assembly is lowered and it is
located out of the PLAY position, turn the idle gear
in the arrow-marked direction so that the hole in the
part fof the tray gear meets the hole on the CL.
base assembly. (Set the TRAMECHA assembly at
the PLAY position.)
2. Remove the three screws Bfastening the
TRAMECHA assembly and then remove the
TRAMECHA assembly upwards from the front side.
3. At the same time, remove the spring from the
groove of the CH. base assembly in the part gof the
TRAMECHA assembly.
Fig. 6
Fig. 7
Fig. 8
Fig. 9
BB
Idle gear
TRAMECHA
assembly
B
Tray gear
Part g
Tray gear
Part f
L. base assembly
Spring
Part g
Spring
Groove of CH. base assembly

NX-MD1R/NX-MD1
1-19
Reference:The mechanism P.C. board can be
removed without removal of the
TRAMECHA assembly.
Note: Before disconnecting the flexible wire coming
from the pickup from the connector, be sure to
solder its shorting round.
If the flexible wire is connected without
soldering, it may cause breakdown of the
pickup.
Removing the Mechanism P.C. Board
(Refer to Fig 10.)
1. Solder the shorting round of the flexible wire
connected with the mechanism P.C. board from the
back of the mechanism assembly.
2. Disconnect the flexible wire from the connector
CN601 on the mechanism P.C. board.
3. Remove the three screws Cfastening the
mechanism P.C. board.
4. Unsolder the two points of the part hand one point
of the part iof the mechanism P.C. board. Then,
remove the mechanism P.C. board upwards.
Note: When reinstalling the mechanism P.C. board,
connect the flexible wire coming from the
pickup to the connector first and then remove
the solder from the shorting round of the
flexible cable.
Fig. 10
C
CC
CN601 on
mechanism
P.C. board
Flexible wire
Shorting round
Soldered
part h
Soldered part i

NX-MD1R/NX-MD1
1-20
Reference: The pickup can be removed without
removal of the mechanism P.C. board.
Note: Before disconnecting the flexible wire coming
from the pickup from the connector, be sure to
solder its shorting round.
If the flexible wire is connected without
soldering, it may cause breakdown of the
pickup.
Removing the Pickup
(Refer to Figs. 11 to 14.)
Remove the CL. base assembly and tray.
Remove the TRAMECHA assembly.
1. Solder the shorting round of the flexible wire
connected with the mechanism P.C. board from the
back of the TRAMECHA assembly.
2. Disconnect the flexible wire from the connector
CN601 on the mechanism P.C. board.
3. Turn the idle gear in the arrow-marked direction from
the top of the TRAMECHA assembly so that the
pickup assembly is shifted to the reverse side of the
T-T assembly.
Move the pickup assembly until the part jof the rack
plate in the lower part of the pickup assembly comes
out of the CH. base assembly.
4. Remove the two screws Dretaining the shaft of the
pickup assembly. Next, disengage the hook kfrom
the CH. base assembly and then remove the pickup
assembly together with the shaft.
5. Pull the shaft out of the pickup.
6. Remove the two screws Efastening the rack plate
from the pickup.
7. Remove the screw Fretaining the P.S. spring from
the pickup.
Fig. 11
Fig. 12
Fig. 13
Fig. 14
D
D
Pickup assembly
Flexible wire
Shorting round
CN601 on
mechanism
P.C. board
Pickup assembly
T-T assembly
CH. base
assembly
Part j of
rack plate
Idle gear
Part k
CH. base
assembly
Shaft
E
Pickup
P.S. spring
F
Part j
Rack plate