JVC J570V Service Manual

SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MX-J570V MX-J680V
MX-J570V MX-J680V
SOUND
VOCAL
MODE
MASKING
SLEEPECHO
FM MODE
V.INTRO
STILL
SUBTITLEHIGHLIGHT
TAPE
A/B
REC
START/STOP
ACTIVE BASS EX.
ON SCREEN
NEXTPREV
KEY CONTROL
FADE MUTING
RM—SMXJ570V REMOTE CONTROL
Each difference point
Model CD/DECK/RECEIVER SPEAKER
MX-J570V CA-MXJ570V
MX-J680V CA-MXJ680V
SP-MXJ570V SP-MXJ680V
Area Suffix
UT Taiwan
COMPACT
DIGITAL VIDEO
COMPACT
SUPER VIDEO
COMPACT
DIGITAL AUDIO
Color
Tray fitting
Silver
Panel
Silver & Blue Silver
Champagne-gold Champagne-gold
Net Front
Light blue
Gray
Contents
Safety precautions Important for laser products Preventing static electricity Precautions at disassembly and parts replacement Disassembly method Adjustment method
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
1-2 1-3 1-4
1-5 1-6 1-29
Diagnosis which uses extension wire method Flow of functional operation until TOC read Maintenance of laser pickup Replacement of laser pickup Description of major ICs
1-33
1-34 1-35 1-35 1-36
No.20889
Dec. 2000
MX-J570V/MX-J680V

Safety Precautions

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 proper ty damage resulting therefrom.
3. Many electrical and mechanical par ts 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 or iginal 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 eachexposed metal part, par ticularly 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.).
0.15 F AC TYPE
1500 10W
Good earth ground
AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)
Place this probe on each exposed metal part.
Warning
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.
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.
1-2
CAUTION
!

Important for laser products

MX-J570V/MX-J680V
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 laser radiation and is equipped with safety switches which prevent 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.
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.
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.
CAUTION
!
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
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
DANGER : Invisibie laser radiation when open and interlock or defeated. AVOID DIRECT EXPOSURE TO BEAM (e)
VARO : Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle.Älä katso säteeseen. (d)
VARNING : Osynlig laserstrålning är denna del är öppnad och spårren är urkopplad. Betrakta ej strålen. (s)
ADVARSEL :Usynlig laserstråling ved åbning , når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling. (f)
1-3
MX-J570V/MX-J680V

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
In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of the work environment. 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.
(caption) Anti-static wrist strap
Conductive material (conductive sheet) or iron plate
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. 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. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to detach the CD traverse mechanism.
CD changer mechanism
assembly
1. Remove the disk stopper and T. bracket on the CD changer mechanism assembly.
2. Disconnect the harness from connector on the CD motor board.
3. CD traverse unit is put up as shown in Fig.1.
4. Solder is put up before the card wire is removed from connector CN601 on the CD servo control board as shown in Fig. 2. (When the wire is removed without putting up solder, the CD pick-up assembly might destroy.)
5. Please remove solder after connecting the card wire with CN601 when you install picking up in the substrate.
1-4
CD traverse
unit
Flexible cable
Fig.1
Soldering
Fig.2

Precautions at disassembling and parts replacement

This model is charged with electricity on the power board even if the power cord is unplugged. Therefore, always discharge electricity in accordance with the steps given below before starting disassembling of the unit and/or replacement of parts.
1.
2.
While referring to the disassembling steps, remove the metal cover and the CD changer mechanism.
Set electrical resistances of 1kohm 1/4W to the places between the + and - terminals of the respective condensers C204 and C205 on the power board, and discharge electricity for 4 ~ 5 seconds.
Power board
C205
C204
MX-J570V/MX-J680V
1-5
MX-J570V/MX-J680V

Disassembly method

<Main body>
Removing the metal cover
(See Fig.1 to 3)
1.
Remove the six screws A attaching the metal cover on the back of the body.
2.
Remove the two screws B attaching the metal cover on both sides of the body.
3.
Remove the metal cover from the body by lifting the rear part of the cover.
ATTENTION:
Do not break the front panel tab fitted to the metal cover.
A
Metal cover
AA
Fig.1
Metal cover
B
Fig.2
Metal cover
Fig.3
B
1-6
MX-J570V/MX-J680V
CD changer mechanism board
CD changer mechanism assembly
Main board
CN868
C
Input / output board
CN871
CN870
Rear panel
Front panel assembly
Fig.5
Fig.6
Fig.4
Front panel assembly
CD changer mechanism assembly
Rear panel
C
Rear panel
D
G
E
CD Optical
digital output
terminal
TW100
CN102
Video CD board
Bracket
CLAW a
Fig.7
H
I
CD changer mechanism assembly
Video CD board
F
Video out board
Video CD board
CLAW b
CN100
CN101
Prior to performing the following procedure, remove the metal cover.
For the card wire connecting the CD changer mechanism board and the main board, disconnect it from connector CN868 on the main board.
Remove the two screws C attaching the CD changer mechanism assembly on both sides of the body.
Remove the two screws D attaching the CD changer mechanism assembly to the rear panel. Remove the screw E attaching the AUX terminal on the back of the body.
Remove the screw F attaching the video out terminal on the back of the body. Then disconnect it from connector CN102 on the video CD board, and pull out the earth wire TW100 on the video CD board.
Pull the top of rear panel and the front panel assembly outward respectively, then remove the CD changer mechanism assembly and video out board by lifting the rear part of the CD changer mechanism assembly.
1.
2.
3.
4.
5.
Removing the CD changer mechanism assembly (See Fig.4 to 6)
Prior to performing the following procedure, remove the CD changer mechanism assembly.
Reverse the CD changer mechanism assembly. Remove the two screws H attaching the bracket. Remove the screw I attaching the video CD board. Disconnect the card wire from connector CN100 and
CN101 on the video CD board. At first, remove the claw a. Then remove the claw b
while raising the video CD board in the direction of the arrow mark as figure. After removing the claw b, you can removing the video CD board by pulling it backward.
1.
2.
3.
4.
5.
Removing the video CD board (See Fig.7)
1-7
MX-J570V/MX-J680V
Removing the front panel assembly
(See Fig.8 to 10)
Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly.
1.
Disconnect the card wire from connector CN865 on the main board and pull out the earth wire on the main board.
2.
Disconnect the card wire from connector CN315 on the input / output board.
3.
Disconnect the harness from connector CN912 on the input / output board.
4.
Disconnect the harness from connectors CN900 and CN901 on the relay board on the back of the front panel assembly respectively.
5.
Disconnect connector CN870 and CN871 on the input/output board from the main board respectively.
Front panel assembly
Front panel assembly
Fig.8
CN871
J
CN870
6.
Remove the four screws J attaching the front panel assembly on the bottom of the body.
7.
Release the two joints b and c on the lower part of the sides using a screwdriver, and remove the front panel assembly toward the front.
Main board
CN865
CN912
CN315
Joint b
Earth wire
Fig.9
Main board
CN865
Input / output board
Front panel assembly
1-8
Relay board
Joint c
CN900 CN901
Fig.10
<Front panel assembly>
Removing the Microphone terminal board assembly (See Fig.11 and 12)
Prior to performing the following procedure, remove the metal cover, CD changer mechanism assembly and the front panel assembly.
1.
Pull out the MIC volume knob from the front side.
2.
Remove the screw K attaching earth wire. then release the earth wire from the clamp on the upper part of the cassette mechanism assembly.
3.
Remove the two screws L attaching the microphone terminal board assembly.
4.
Remove the microphone terminal board assembly toward you.
MIC Volume knob
Microphone
terminal board
assembly
MX-J570V/MX-J680V
Fig.11
M
Removing the rolling panel assembly
(See Fig.12 and 13)
Prior to performing the following procedure, remove the microphone terminal boare .
1.
Disconnect the harness from connector CN900 and CN906 on the relay board on the back of the rolling panel assembly.
2.
Disconnect the harness from connector CN862, CN863, CN850, CN851 and CN815 on the main board respectively. Disconnect the card wire from connector CN880 on the main board.
3.
Disconnect the card wire from connector CN869 and the harness from CN883 and CN884 on the main board respectively.
4.
Remove the four screws M attaching the rolling panel assembly.
Main board
M
M
Relay board
CN900
Cassette mechanism assembly
CN883,CN884
Relay board
CN906
Fig.12
CN869
L
L
M
K
Rolling panel assembly
CN815
Main board CN850,CN851
Main board CN862,CN863
5.
Remove the rolling panel assembly toward you.
ATTENTION:
For the harness which should be connected to connector CN869, CN883 and CN884 on the main board, get them through the slots under the rolling panel when reattaching the rolling panel assembly to the front panel (Refer to Fig.13)
Rolling panel assembly
Main board
CN880
Relay board
CN906
Fig.13
1-9
MX-J570V/MX-J680V
Removing the main board
(See Fig.14 and 15)
Prior to performing the following procedure, remove the front panel assembly, the microphone terminal board and the rolling panel assembly.
1.
Disconnect the harness from connector CN867 on the main board.
2.
Disconnect the card wire from connector CN879 on the main board (Before pulling out the card wire, stand the part d of CN879 as shown in Fig.15).
3.
Remove the two screws N attaching the main board.
Removing the cassette mechanism assembly (See Fig.16)
Rolling panel assembly
N
CN867
CN879
Main board
N
Fig.14
d
CN879
Fig.15
Prior to performing the following procedure, remove the front panel assembly.
1.
Disconnect the card wire from connector CN306 on the cassette mechanism board.
2.
Remove the eight screws O and P attaching the cassette mechanism assembly.
3.
Pull out the cassette mechanism assembly toward you.
O
P
CN306
P
P
Cassette mechanism board
Fig.16
O
P
1-10
Prior to performing the following procedure, remove the front panel assembly, the microphone terminal board assembly and the rolling panel assembly.
Function board1 (See Fig.17)
Remove the two screws Q attaching the function board 1.
Function board2 (See Fig.17)
Remove the two screws R attaching the function board 2.
Bass-level regulator board (See Fig.18)
Pull out the bass-level knob on the front side of the front panel assembly and remove the nut attaching the bass-level regulator board.
Release the two joints e. Unsolder FW951 on the bass-level regulator board and disconnect the harness connected to the power switch board.
Main volume & headphone board (See Fig.18)
Pull out the volume knob on the front side of the front panel assembly and remove the nut attaching the main volume & headphone board.
Remove the two screws S attaching the main volume & headphone board on the back of the front panel assembly and release the two joints f.
Remove the screw P attaching the earth wire extending from the main volume & headphone board.
Unsolder FW850 on the main volume & headphone board and disconnect the harness connected to the eject switch board.
1.
1.
1.
2.
1.
2.
3.
4.
Removing the boards in the front panel assembly (See Fig.17 and 18)
Fig.17
Fig.18
Q
Function
board 1
Q
Function
board 2
R
R
FW850
FW951
Eject switch board
Joints f
S
Main volume & headphone board
P
Power switch board
Joints e
Bass-level regulator board
Cassette mechanism assembly
MX-J570V/MX-J680V
1-11
MX-J570V/MX-J680V
Power switch board (See Fig.19)
1.
Remove the two screws T attaching the power switch board. Unsolder FW951 on the power switch board and disconnect the harness extending to the bass-level regulator board.
Eject switch board (See Fig.19)
1.
Remove the four screws U attaching the eject switch board. Unsolder FW850 on the eject switch board and disconnect the harness extending to the main volume & headphone board.
Remote control port board (See Fig.19)
1.
Remove the screw V attaching the remote control port board.
Removing the relay board and fixing board (See Fig.20)
Eject swith
board
FW850
U
Remote control port board
U
V
Fig.19
T
Power swith
board
FW951
Prior to performing the following procedure, remove the metal cover,CD changer mechanism assembly and the front panel assembly.
There is no need to remove the front panel assembly.
1.
Disconnect the harness from connector CN900, CN901, CN905 and CN906 on the relay board on the back of the rolling panel assembly.
2.
Remove the screw W attaching the relay board. Remove the relay board from the groove g.
3.
Remove the screw X attaching the fixing board and remove the fixing board from the groove h.
CN900
CN901
Groove g
W
CN905
CN906
Rolling panel assembly
X
Fixing board
Groove h
Relay board
Fig.20
1-12
MX-J570V/MX-J680V
Prior to performing the following procedure, remove the metal cover and CD changer mechanism assembly.
Remove the two plastic rivets attaching the joint board, and remove the joint board.
Disconnect the card wire from connector CN1 on the tuner board.
Remove the two screws Y attaching the tuner board on the back of the body.
1.
2.
3.
Removing the tuner board
(See Fig.21 and 22)
<Rear panel assembly>
Prior to performing the following procedure, remove the metal cover and CD changer mechanism assembly.
Remove the two plastic rivets attaching the joint board, and remove the joint board.
Disconnect the card wire from connector CN315 on the input / output board.
Disconnect the harness from connector CN912 on the input / output board.
Remove the screw Z attaching the input / output board on the lower side of the body.
Disconnect connector CN612, CN870, CN871, CN711 and CN712 on the input / output board and pulling out them outward. Remove the input / output board from the body.
1.
2.
3.
4.
5.
Removing the input / output board
(See Fig.21 and 22)
Fig.21
Fig.22
Tuner board
Plastic rivets
Joint board
Input / output board
Rear panel
CN1
CN871
CN870
Z
CN711
CN712
CN315
Rear panel
Y
E
G
CN912
CN612
1-13
MX-J570V/MX-J680V
Removing the rear cover / rear panel
(See Fig.23 to 26)
Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly.
There is no need to remove the front panel assembly.
1.
Remove the two screws A attaching the rear cover on the back of the body.
2.
Remove the screw E attaching the AUX terminal board and the rear panel on the back of the body.
3.
Remove the screw G attaching the digital output terminal.
4.
Remove the seven screws B attaching the heat sink and the pre-amplifier board to the rear panel on the back of the body.
5.
Remove the two screws C attaching the voltage selector on the back at the body.
Rear cover
CD optical
digital output
terminal
Rear panel
A
Fig.23
D
6.
Remove the three screws D attaching the antenna terminal and the rear panel to the chassis base on the back of the body.
7.
Release the two joints i and j on the rear panel bottom using a screwdriver, and detach the rear panel backward.
Rear panel
G
B
E
B
Fig.24
D
B
C
B
Rear panel
1-14
Fig.26
Joint j
Joint i
Fig.25
Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the rear cover / rear panel.
There is no need to remove the front panel assembly.
Remove the input / output board (Refer to Fig.21 and
22). Disconnect the harness from connector CN713 on
the pre-amplifier board. Remove the two screws E attaching the heat sink to
the power & main amplifier board on the back of the body.
Remove the two screws F attaching the pre-amplifier board to the heat sink and detach them with the heat sink bracket.
1.
2.
3.
4.
Removing the pre-amplifier board / heat sink (See Fig.27 to 29)
Fig.27
Fig.28
Fig.29
Pre-amplifier board
CN713
Relay board
CN901
Pre-amplifier board
Power & main amplifier board
Heat sink
E
Heat sink
Pre-amplifier board
Bracket
F
MX-J570V/MX-J680V
1-15
MX-J570V/MX-J680V
Removing the power & main amplifier board (See Fig.30 and 31)
Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly, the front panel assembly, the rear cover / rear panel, the tuner board, the input / output board and pre-amplifier board.
1.
Remove the four screws G attaching the transf. on the power & main amplifier board through the upper side slots.
2.
Remove the two plastic rivets fixing the power & main amplifier board.
3.
Remove the cord stopper by pushing it upward.
4.
Cut off the bands k and l fixing the power cord and unsolder the soldered part on the power & main amplifier board.
Power & main amplifier board
Plastic rivet
G
Fig.30
Plastic rivet
G
G
Power & main amplifier board
Cord stopper
Band k
Fig.31
Soldered part
Band l
1-16
MX-J570V/MX-J680V
Prior to performing the following procedure, remove the metal cover, CD changer mechanism assembly, the front panel assembly, the microphone terminal board assembly, the rolling panel assembly and the main board.
Remove the two screws H attaching the multi-control assembly on both sides.
Remove the multi-control assembly outward while pushing, pull the right and left hooks fixing multi­control assembly outward respectively.
1.
2.
Removing the multi-control assembly
(See Fig.32 to 34)
<Rolling panel assembly>
Prior to performing the following procedure, remove the multi-control assembly.
Remove the four screws I attaching the cover and the bracket.
Pull out the right and left panel holders outward respectivery by releasing the tabs m outward.
Remove the cover and the bracket. Remove the four screws J attaching the multi-control
board.
1.
2.
3.
4.
Removing the multi-control board
(See Fig.35 to 37)
H
Multi-control assembly
Multi-control assembly
H
Fig.35
Fig.36Fig.37
Fig.34
Fig.32
Fig.33
Multi-control assembly
Hook
Bracket
Bracket
II
Cover
Bracket
Tab m
Panel holder
J
Multi-control board
1-17
MX-J570V/MX-J680V
Removing the drive motor assembly
(See Fig.38 to 40)
Prior to performing the following procedure, remove the metal cover, CD changer mechanism assembly, the front panel assembly, the microphone terminal board assembly, the rolling panel assembly and the main board.
1.
Remove the relay board / fixing board (Refer to Fig.20).
2.
Remove the two screws K attaching the motor bracket and remove the motor lead staple n.
3.
Remove the two screws L attaching the shaft bracket.
4.
Remove the motor belt.
5.
Remove the three screws M attaching the side bracket.
6.
Remove the shaft assembly from the rolling panel assembly by lift up the shaft assembly upward.
CN900
CN901
Groove g
Relay board
Rolling panel assembly
W
X
Fixing board
Groove h
Fig.20
7.
Remove the drive motor upward.
Side bracket
W
Relay board
L
Shaft bracket
Fig.38
Motor lead staple n
Fig.39
Fixing board
K
Motor bracket
X
Motor belt
1-18
Fig.40
M
Shaft assembly
Drive motor
Fig.39
MX-J570V/MX-J680V
Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly.
Disconnect the card wire from connector CN101 and CN102 on the super VCD control board.
Remove the two plastic rivets attaching the super VCD control board.
1.
2.
Removing the super VCD control board
(See Fig.41)
Fig.42
CD changer
mechanism assembly
Super VCD control board
Plastic rivet Plastic rivet
CN101
CN102
1-19
MX-J570V/MX-J680V
Removing the CD Servo control board (See Fig.1)
1.Remove the metal cover.
2.Remove the CD changer mechanism assembly.
3.From bottom side the CD changer mechanism assembly, remove the two screws A retaining the CD servo control board.
4.Absorb the four soldered positions "a" of the right and left motors with a soldering absorber.
5.Pull out the earth wire on the CD changer mechanism assembly.
6.The two screws B is removed and C.B.holder is detached.
7.Disconnect the connector CN854 on the CD servo control board.
8.Disconnect the card wire CN601 and the connector CN801 on the CD servo control board.
A
a
a
CN854
A
CN651
CD servo control board
CN652
CN801
CN601
CN151
Removing the CD tray assembly (See Fig.2~4)
Remove the front panel assembly.
1. Remove the CD changer mechanism assembly.
2. Remove the CD Servo control board.
3. Remove the screw C retaining the lod stopper
4. (Only ver.J/C). From the T.bracket section "b" and clamper base
5. section "c" , remove both of the edges fixing the rod(See Fig.2 and 3). Remove the screw D retaining the disc stopper
6. (See Fig.3). Remove the three screws E retaining the T.bracket
7. (See Fig.3). Remove the screw F retaining the clamper assembly
8. (See Fig.3). From the left side face of the chassis assembly, remove
9. the one screw G retaining both of the return spring and lock lever(See Fig. 4).
10.
By removing the pawl at the section "d" fixing the return spring, dismount the return spring(See Fig.4).
11.
Remove the three lock levers(See Fig.4).
T.Braket
Disc stopper
D
Earth
wire
B
B
C.B.Holder
Fig.1
Clamper base
b
Rod
c
T.Braket
Fig.2
d
EE
C
a
Lod stopper (Only ver.J/C)
E
F
b
Lock lever
Fig.4
1-20
Clamper ass'y
Fig.3
Return spring
G
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