JVC HXZ-9 Service manual
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
2206620037
HX-Z9
Area Suffix
UW ----- Brazil,Mexico,Peru
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.22066
2003/7
SPECIFICATION
Amplifier section Output Power
(IEC 268-3)
Tuner FM tuning range 87.50 MHz - 108.00 MHz
AM tuning
range
CD player CD capacity 3 CDs
Dynamic range 85 dB
Signal-to-noise ratio 90 dB
Wow and flutter Immeasurable
Cassette deck Frequency response Normal (type I) 50 Hz - 14 000 Hz
Wow and flutter 0.15% (WRMS)
General Power requirement AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V ~
Power consumption 205 W (in operation) 23 W (on standby with Ecology Mode
Dimensions (approx.) 205 mm × 370 mm × 370 mm (W/H/D)
Mass (approx.) 10.0 kg
Supplied accessories See page 6.
SUBWOOFERS 75 W per channel, min. RMS, both channels driven into 6 Ω
at 63 Hz with no more than 0.9% total harmonic distortion.
MAIN SPEAKERS 30 W per channel, min. RMS, both channels driven into 6 Ω
at 1 kHz with no more than 0.9% total harmonic distortion.
Audio input sensitivity/Impedance(Measured at 1 kHz, with tape recording signal 300 mV)
AUX 390 mV/50 kΩ
Speakers/
Impedance
At 9 kHz intervals 531 kHz - 1 710 kHz
At 10 kHz intervals 530 kHz - 1 710 kHz
SUBWOOFERS 6 Ω - 16 Ω
MAIN SPEAKERS 6 Ω - 16 Ω
SURROUND SPEAKERS 16 Ω - 32 Ω
(adjustable with the voltage selector), 50 Hz / 60 Hz
off) Less than 3.5 W (on standby with Ecology Mode on)
Design and specifications are subject to change without notice.
1-2 (No.22066)
1.1 Safety Precautions
Good earth ground
d
AC VOLTMETER
SECTION 1
PRECAUTION
(1) This design of th is product contains special hardw are 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 manufacturers 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 reassembling.
(5) Leakage shock hazard testing
After reassembling 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, 1,000Ω per volt or more sensitivity
in the following manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF 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 measure 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 0.5µ
mA AC (r.m.s.).
(Having 1000
ohms/volts,
or more sensitivity)
0.15 F AC TYPE
Place this
probe on
1500 10W
1.2 Warning
(1) This equipment has been designed and manufactured to
meet international safety standards.
(2) It is the legal resp onsibility 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 compone nts are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.
1.3 Caution
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.
1.4 Critical parts for safety
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.
(This regulation dose not Except the J and C version)
each expose
metal part.
(No.22066)1-3
1.5 Preventing 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.
1.5.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser dio de) in devices such as CD players.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sh eet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(caption)
Anti-static wrist strap
1M
Conductive material
(conductive sheet) or iron palate
(3) Handling the optical pickup
• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optica l
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
• 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.
1.6 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) Cut off the shorted part of the flexible cable using nippers, etc. 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 cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1.7 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the CD pickup unit.
• Apply solder to the short land sections before the flexible wire is disconnected from the connector CN101 on the CD servo boar d.
(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land sections after connecting the flexible wire.
1-4 (No.22066)
CD traverse
mechanism unit
Flexible cable
Fig.1
Soldering
Fig.2
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.22066)1-5
SECTION 3
AA
DISASSEMBLY
3.1 Main body
3.1.1 Removing the metal cover
(See Fig.1~3)
(1) Remove the six screws A on the back of the body.
(2) Remove the screw B on each side of the body.
(3) Remove the metal cover from the bod y by lifting the rear
part of the cover.
CAUTION:
Do not break the front panel tab fitted to the metal cover.
Metal cover
A
Metal cover
B
Fig.2
Metal cover
Fig.1
1-6 (No.22066)
B
Fig.3
3.1.2 Removing the CD changer mechanism assembly
(See Fig.4, 5)
• Prior to performing the following procedure, remove the metal
cover.
(1) Disconnect the card wire from connector CN651 on the CD
servo control board on the right bottom of the CD changer
mechanism assembly.
(2) Remove the four screws C attaching the CD changer
mechanism assembly on top of the body.
(3) Remove the CD changer mechanism assembly while lifting
the rear part.
CAUTION:
Do not damage the CD fitting when removing the CD changer
mechanism assembly.
CD changer
mechanism assembly
Front panel assembly
CD servo control board
CN651
Fig.4
C
C
CD changer mechanism assembly
Fig.5
(No.22066)1-7
3.1.3 Removing the front panel assembly
(See Fig.6~9)
• Prior to performing the following procedure, remove the metal
cover and the CD changer mechanism assembly.
(1) Disconnect the card wires from connector CN44 and
CN870 on the main board on the right side of the body. Remove the screw D attaching the wire from extending from
the underside of the front panel assembly.
(2) Disconnect the wire from connector CN70 1 on the bridge
board.
(3) Cut the band.
(4) Disconnect the wires from connector CN23 1 and CN232
on the primary board on the left side of the body.
(5) Remove the plastic rivet attaching the inner bar in the cen-
ter of the front panel assembly.
REFERENCE:
Keep the plastic rivet for reuse.
(6) Remove the three screws E attaching the front panel as-
sembly at the bottom of the body.
(7) Disconnect the ground wire extending from the phone
board from bottom chassis.
(8) Release the two joints a on the lower left and right sides of
the front panel assembly using a screwdriver, and remove
the front panel assembly toward the front.
REFERENCE:
Front panel need to be tilt little bit as release from bottom
chassis.
Primary board
CN231,CN232
Bottom chassis
Front panel aeembly
Joint a
Ground wire
Front panel assembly
Joint a
Bridge board
CN701
D
Fig.6
Main board
CN870
CN44
Inner bar
Bridge board
CN701
Fig.7
Plastic rivet
Fig.8
Front panel assembly
Band
Primary board
CN231,CN232
1-8 (No.22066)
E
Fig.9
3.1.4 Removing the antenna bo ar d
(See Fig.10, 11)
• Prior to performing the following procedure, remove the metal
cover.
(1) Disconnect the card wire from connector CN1 on the an-
tenna board on the right side of the body.
(2) Remove the band attaching the antenna bo ard.
(3) Remove the two screws F on the rear panel on the back of
the body.
Antenna board
CN1
Band
Fig.10
Rear panel
Rear panel
F
Fig.11
(No.22066)1-9
3.1.5 Removing the rear panel
(See Fig.12~16)
(1) Remove holding board by remove two plastic rivets and
then slide out the holding board as shown in fig.12.
(2) Disconnect fan wire from connector CN20 6 on the bridge
board.
(3) Disconnect the flat wire from conne ctor CN91 on the sur-
round speakers jack board.
(4) Cut off the band that fixing fan wire on inner bar.
(5) Remove nine screws G from rear panel.
(6) Detach joint b to release rear panel from inner bar.
(7) Release joints c which on right bottom and left bottom of
rear panel. The joint can be release by pull outward the
side of rear panel.
REFERENCE:
Fan assembly and surround speaker jack board will come off
with rear panel.
Rear panel
Inner bar
Plastic rivets
Rear panel
G
G
G
Joint b
Surround speakers
jack board
CN91
Holding board
Fig.12
Band
Fig.13
Inner bar
Bridge board
CN206
Joint c
Rear panel
G
Fig.14
Rear panel
Fig.15
1-10 (No.22066)
Joint c
Fig.16
3.1.6 Removing the fan assembly
(See Fig.17, 18)
• Prior to performing the following procedure, remove the metal
cover, the CD changer mechanism assembly and the rear panel.
(1) Remove two screws H on the rear panel.
(2) Rotate fan assembly in clockwise di rection to release fan
assembly from rear panel (joints e).
H
Rear panel
Fig.17
e
3.1.7 Removing the main board
(See Fig.19)
• Prior to performing the following procedure, remove the metal
cover, the CD changer mechanism assembly, the antenna
board and the rear panel.
(1) Disconnect the card wires from connector CN44 and
CN870 on the main board.
(2) Remove the screw D attaching the main board.
(3) Disconnect connector CN217 and CN311 on the main
board outward and release from the base chassis (joint f)
upward.
CN870
CN44
D
e
Fig.18
CN311
Fig.19
Fan assembly
CN217
Main board
f
(No.22066)1-11
3.1.8 Removing the bridge board / regulator board / heat
r
sink
(See Fig.20~25)
• Prior to performing the following procedure, remove the metal
cover, the CD changer mechanism assembly, the rear panel,
the antenna board and main board.
(1) Remove the plastic rivet attaching the stay inner bar and
remove the screw I on the bridge board.
(2) Move the inner bar forward and upward to release from the
front section (joint g) and from the bridge board (two joints
h) respectively.
(3) Disconnect the wires from connector CN212, CN213 and
CN214 on the primary board respectively and remove the
band fixing the wires.
(4) Disconnect the wire from connector CN70 1 on the bridge
board.
(5) Remove the two screws J attaching the heat sink bracket
and move the heat sink in the direction of the arrow to release from the base chassis. The bridge board and the reg-
ulator board come off with the heat sink.
(6) Remove the two screws K attaching the heat sink bracket.
(7) Remove the two screws L, detach bridge board from regu-
lator board by disconnect connector CN205.
(8) Remove the two screws M and a screw N to detach regu-
lator board from heat sink.
CAUTION:
As assembly back the regulator board and bridge board to
heat sink.
Regulator board must be assembling to heat sink first and
screws M and N must be screwed before bridge board attach
to regulator board.
Plastic rivet
Bridge board
Bridge board
Regulator board
Heat sink bracket
Band
CN701
J
Primary board
CN213
CN212
CN214
Fig.22
Heat sink
J
Fig.23
Bridge board
Bridge board
Bridge board
1-12 (No.22066)
Fig.20
Inner bar
Fig.21
I
h
Inner ba
Plastic rivet
Heat sink
Regulator board
Heat sink bracket
Fig.24
Heat sink
g
Heat sink bracket
Regulator board
K
CN215
M
CN205
LN
Fig.25
Bridge board
3.1.9 Removing the power transformer assembly
(See Fig.26, 27)
• Prior to performing the following procedure, remove the metal
cover, the CD changer mechanism assembly, the rear panel,
the main board and the bridge board / regulator board.
(1) Remove the screw O attaching the primary board.
(2) Disconnect the wire from connector CN231 and CN232 on
the primary board.
(3) Remove the four screws P attaching the power transform-
er assembly.
(4) Detach the cord stopper from the base chassis upward.
REFERENCE:
When disconnecting the power cord from connector CN250 on
the primary board, remove the fixing band.
Power transformer assembly
O
Fig.26
Power transformer
assembly
Primary board
CN231,CN232
Primary board
CN250
Band
Cord stopper
P P
Fig.27
(No.22066)1-13
3.2 Front panel assembly
• Prior to performing the following procedure, remove the metal
cover, the CD changer mechanism assembly and front panel
assembly.
3.2.1 Removing the cassette mechanism assembly
(See Fig.28)
(1) Disconnect the card wire from connector CN33 on the head
amplifier & mechanism control board.
(2) Remove the two screws Q, and the two screws R attaching
the cassette mechanism assembly.
3.2.2 Removing the headphone board
(See Fig.28)
(1) Remove the screw S and pull ou t the headphone board
backward.
(2) Cut off the band.
3.2.3 Removing the display system control board
(See Fig.29, 30)
(1) Remove the four screws T attaching the stay bracket (1).
(2) Disconnect the card wires from connector CN43 and
CN880 on the display system control board.
(3) Remove the ten screws U attaching the display system
control board.
Head amplifier & mechanism control board
Q
Cassette mechanism assembly
Fig.28
Stay bracket (1)
CN33
R
Headphone board
SR
T
Display system control board
CN43
Fig.29
U
Display system control board
CN43
Fig.30
U
U
CN880
U
CN880
1-14 (No.22066)
3.2.4 Removing the button board
(See Fig.31~35)
• Prior to performing the following procedure, remove the dis-
play system control board.
(1) Pull out preset knob, sound mode knob on the front panel
toward the front.
(2) Pull out the volume knob and remove the two screws V at-
taching the knob holder. Remove the nut from the front
panel.
(3) Remove the four screws W attaching the stay bracket (2).
(4) Remove the eight screws X attaching the button board.
Front panel assembly
Sound mode knob
Nut
Fig.33
W
Knob holder
Fig.31
Fig.32
Volume knobPreset knob
Stay bracket (2)
Fig.34
Button board
X
V
X
X
Fig.35
(No.22066)1-15
3.3 CD Changer Mechanism
A
• Remove the CD changer mechanism assembly.
3.3.1 Removing the CD Servo control board
(See Fig.1)
(1) From bottom side the CD changer mechanism assem-
bly,remove the four screws A retaining the CD servo control board.
(2) Absorb the four soldered po sitions a of the right and left
motors with a soldering absorber.
(3) Pull out the ea rth wire on the CD cha nger mechanism as-
sembly.
(4) Disconnect the connector CN854 on the CD servo control
board.
(5) Disconnect the card wire CN601 and the connector CN801
on the CD servo control board.
A
a
CN854
CN651
CD servo control board
CN801
CN151
CN601
a
AA
Fig.1
1-16 (No.22066)
3.3.2 Removing the CD tray assembly
(See Fig.2~9)
(1) Remove the CD servo control board.
(2) Remove the screw B retaining the lod stopper.
(3) From the T.bracket section b and clamper base section c ,
remove both of the edges fixing the rod.
(4) Remove the three screws C retaining the T.bracket.
(5) Remove the screw D retaining the clamper assembly.
(6) From the left side face of the chassis assembly, remove the
one screw E retaining both of the return spring and lock le-
ver.
(7) By removing the pawl at the se ction d fixing the return
spring, dismount the return spring.
(8) Remove the three lock levers.
(9) Check whether the lifter unit stopper has be en caught into
the hole at the section e of CD tray assembly as shown in
Fig.5.
(10) Make sure that the driver unit elevator is positioned as
shown in Fig.6 from to the second or fifth hole on the left
side face of the CD changer mechanism assembly.
CAUTION:
In case the driver unit elevator is not at above position,
set the elevator to the position as shown in Fig.7 by manually turning the pulley gear as shown in Fig.8.
(11) Manually turn the motor pul ley in the clockwise direction
until the lifter unit stopper is lowered from the section e of
CD tray assembly.
(12) Pull out all of the thre e stages of CD tray assembly in the
arrow direction f until these stages stop.
(13) At the position where the CD tray assembly has stopped,
pull out the CD tray assembly while pressing the two pawls
g and g' on the back side of CD tray assembly. In this
case, it is easy to pull out the assembly when it is pulled out
first from the stage CD tray assembly.
C
Clamper assembly
T.Braket
C
B
Lod stopper
(C/J version only)
C
D
Fig.3
d
Return spring
Clamper base
Lock lever
Fig.4
Stopper
E
b
Rod
c
T.Braket
Fig.2
e
CD tray
assembly
Fig.5
(No.22066)1-17
f
Chassis assembly
r
A
Refer to Fig.7
Pawl
g
Fig.6
Drive unit of elevato
Fig.7
CD tray assembly
Pulley gear
Motor pulley
Fig.8
CD
3
CD
2
CD
1
CD tray assembly
3.3.3 Removing the CD loading mechanism assembly
(See Fig.10)
(1) While turning the cams R1 and R2 assembly in the arrow
direction h ,align the shaft i of the CD loading mechanism
assembly to the position shown in Fig.10.
(2) Remove the four screws F retaining the CD loading mech-
anism assembly.
Pawl g, g'
Fig.9
Cams R1, R2 assembly
rrow
h
i
F
F
1-18 (No.22066)
F
CD loading mechanism assembly
Fig.10
F
3.3.4 Removing the CD traverse mechanism
j
(See Fig.11 and 12)
(1) For dismounting only the CD traverse mechanism without
removing the CD loading mechanism assembly, align the
shaft j of the CD loading mechanism assembly to the position shown Fig.11 while turning the cam R1 and R2 assembly in the arrow direction k .
(2) By raising the CD loading mechan ism assembly in the ar-
row direction l , remove the assembly from the lifter unit.
Cam R1, R2 assembly
Fig.11
Arrow
k
CD traverse mechanism
3.3.5 Removing the CD pick unit
(See Fig.13)
(1) Move the cam gear in the arrow direction m . Then, the CD
pickup unit will be moved in the arrow dire cti o n n .
(2) According to the above step, shift the CD pickup unit to the
center position.
(3) While pressing the stopper retaining the shaft in the arrow
direction o , pull out the shaft in the arrow direction p .
(4) After dismounting the shaft from the CD pickup unit, re-
move the CD pickup unit.
Lifter unit
Fig.12
CD Pickup unit
n
m
Arrow
l
CD loading
mechanism
Shaft
Cam gear
Shaft
o
Stopper Stopper
Shaft
p
Fig.13
(No.22066)1-19
3.3.6 Removing the try select switch board
r
(See Fig.14)
(1) Remove the two screws G retaining the tra y select sw itch
board.
(2) Disconnect the tray select switch board from connector
CN854 on the CD servo control board.
Chassis assembly
Tray select
switch board
CN854
CN851
CD servo
control board
3.3.7 Removing the cam unit
(See Fig.15 ~17)
• Remove the CD loading mechanism assembly.
(1) While turning the cam gear q , align the Paul r position of
the drive unit to the notch position on the cam gear q .
(2) Pull out the drive unit and cylinder gear .
(3) While turning the cam gear q , align the Paul s position
of the select lever to the notch position on the cam gear q .
(4) Remove the four screws H retaining the cam unit(cam
gear q and cams R1/R2 assembly).
Drive unit
Cam gear q
r
Fig.14
Drive unit
Cylinder gea
CN804
G
1-20 (No.22066)
Fig.15
Cam gear q
s
H
Fig.16
Cams R1, R2 assembly
Cam unit
H
Select lever
Fig.17
3.3.8 Removing the actuator motor and belt
r
(See Fig.18~21)
(1) Remove the two screws I retaining the gear bracket.
(2) While pressing the pawl t fixing the gear bracket in the ar-
row direction, remove the gear bracket.
(3) From the notch u section on the chassis assembly fixing
the edge of gear bracket, remove and take out the gear
bracket.
(4) Remove the belts respectively from the right and left actu-
ator motor pulleys and pulley gears.
(5) After turning over the chassis asse mbly, remove the actu-
ator motor while spreading the four pawls v fixing the right
and left actuator motors in the arrow direction.
ATTENTION:
When the chassis assembly is turned over under the conditions wherein the gear bracket and belt have been removed,
then the pulley gear as well as the gear, etc. constituting the
gear unit can possibly be separated to pieces. In such a case,
assemble these parts by referring to the assembly and configuration diagram in Fig. 21.
Gear bracket
Pulley gear
Belt
Motor pulley
Chassis assembly
u
Gear bracket
Fig.19
Actuator motor
v
v
Fig.20
Pulley gear
Belt
Motor pulley
I
Pawl
t
I
Fig.18
Assembly and Configuration Diagram
Pulley gear
Pulley gear
Gear B
Gear C
Select gear
Gross gear L
Fig.21
Gear B
Cylinder gea
Gross gear U
Gear C
(No.22066)1-21
3.3.9 Removing the cams R1/R2 assembly and cam gear q
(See Fig.22)
(1) Remove the slit washer fixing the cams R1 and R2 assem-
bly.
(2) By removing the two pawls w fixing the cam R1, separate
R2 from R1.
(3) Remove the slit washer fixing the cam gear q .
(4) Pull out the cam gear q from the C.G. base assembly.
3.3.10 Removing the C.G. base assembly
(See Fig.22 and 23)
(1) Remove the three screws J retaining the C.G. ba se as-
sembly.
CAUTION:
To reassemble the cylinder gear, etc.with the cam unit (cam
gear and cans R1/R2 assembly), gear unit and drive unit, align
the position of the pawl x on the drive unit to that of the notch
on the cam gear q . Then, make sure that the gear unit is engaged by turning the cam gear q .
Slit washer
Cam gear q
J
Slit washer
Cam R2
Pawl
w
Cam R1
Cam switch board
C.G. base assembly
Pawl
w
Notch
Pawl
x
Cylinder
gear
Drive unit
Fig.22
Cam gear q
Cam R1, R2 assembly
Gear unit
Gear bracket
Fig.23
1-22 (No.22066)
3.3.11 Removing the Pickup unit
(See Fig.24 and 25)
(1) Turn the cam gear in the direction of the arro w to move the
pickup unit toward the center.
(2) Extend the guide shaft stopper in the direction of the arrow,
move the guide shaft and pull out as shown in the figure.
(3) Pull out the pickup unit from the joint a.
CAUTION:
When reassenbling, attch the pickup unit to the chassis
base firmly at the joint a.
(4) Release the four joint b on the back on the pi ckup unit to
remove the CD rack.
Joint a
Pickup unit
Pickup unit
Chassis base
Guide shaft
Cam gear
Guide shaft stopper
Guide shaft
Joint b
Guide shaft
Guide shaft stopper
Fig.24
Pickup unit
Joint b
Joint b CD rack
Fig.25
(No.22066)1-23
3.3.12 Removing the CD mechanism board
(See Fig.26)
(1) On the back of the CD mechanism assembly, unsolder the
four soldering c attaching the CD mechanism board, the
spindle motor and the feed motor.
(2) Removing the screw A.
3.3.13 Removing the Spindle motor/Feed motor
(See Fig.27)
• Prior to performing the following procedure,remove the CD
mechanism board.
(1) Form the top side of the CD mechanism assembly, remove
the two screws B and two screws C attaching the spindle
motor and the feed motor respsctively.
Soldering c
Spindle motor
Soldering c
Spindle motor
CD mechanism board
A
Feed motor
Fig.26
B
Feed motor
Fig.27
C
1-24 (No.22066)
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