JVC KW-NX7000J User manual

SERVICE MANUAL
COPYRIGHT © 2008 Victor Company of Japan, Limited No.MA427<Rev.001>
2008/8
NAVIGATION/DVD RECEIVER
MA427<Rev.001>20088SERVICE MANUAL
KW-NX7000J, KW-NX7000E,
KW-NX7000EE
COPYRIGHT © 2008 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
Only for KW-NX7000E
Only for KW-NX7000E/EE
Only for KW-NX7000EE
Only for KW-NX7000J

1-2 (No.MA427<Rev.001>)
SPECIFICATION
KW-NX7000J
NAVIGATION SYSTEM
System & Service L1, C/A code
Global Positioning System
Standard Positioning Service
Reception System 12-channel multi-channel reception system
Reception Frequency 1 575.42 MHz
Sensitivity -130 dBm
Update Rate 1/second, continuous
GPS Antenna Polarization Right Handed Circular Polarization
Dimensions (approx.) (W ×H ×D)
30.4 mm × 11.7 mm × 35.5 mm (1-1/4 inches × 1/2 inch × 1- 7/16 inches)
Cable (approx.) 5.0 m (16.4 feet)
Attachment mat size (approx.) 70 mm ×70 mm (2-13/16 inches ×2-13/16 inches)
AMPLIFIER
Power Output 20 W RMS ×4 Channels at 4 Ωand < or = 1% THD+N
Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Audio Output Level LINE OUT
(FRONT/REAR),SUBWOOFER
Line-Out Level/Impedance 5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Color System NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminals Input LINE IN, VIDEO IN, CAMERA IN, USB input, Antenna input
Output VIDEO OUT
Others CD changer, OE REMOTE, DIGITAL OUT (optical)
FM/AM TUNER
Frequency Range
FM (with channel interval set to 100 kHz or 200 kHz) 87.5 MHz to 107.9 MHz
FM (with channel interval set to 50 kHz) 87.5 MHz to 108.0 MHz
AM (with channel interval set to 10 kHz) 530 kHz to 1 710 kHz
AM (with channel interval set to 9 kHz) 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
AM Tuner Sensitivity/Selectivity 20 µþV/35 dB
DVD/CD
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
VCD/CD 16 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
SD
Compatible File System FAT 32/16/12
Capacity 8 Mbytes to 2 Gbytes

(No.MA427<Rev.001>)1-3
Data Transfer Rate Maximum 10 Mbps
USB
USB Standards USB 2.0 Full Speed
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Low Speed: Maximum 1.5 Mbytes
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current Less than 500 mA/5V
MONITOR
Screen Size 7 inch wide liquid crystal display
Number of Pixel 336 960 pixels: 480 ×3 (horizontal) ×234 (vertical)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System NTSC/PAL
Aspect Ratio 16 : 9 (wide)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Storage Temperature -10°C to +60°C (14°F to 140°F)
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W × H × D)
With trim plate and sleeve at-
tached
Installation Size (approx.) 182 mm ×111 mm ×160 mm
(7-3/16” ×4-3/8” ×6-5/16”)
Panel Size (approx.) 188 mm ×117 mm ×10 mm
(7-7/16” ×4-5/8” ×7/16”)
Mass (approx.): 3.5 kg (7.8 lbs) (including trims and sleeve)

1-4 (No.MA427<Rev.001>)
KW-NX7000E/ EE
NAVIGATION SYSTEM
System & Service L1, C/A code
Global Positioning System
Standard Positioning Service
Reception System 12-channel multi-channel reception system
Reception Frequency 1 575.42 MHz
Sensitivity -130 dBm
Update Rate 1/second, continuous
GPS Aerial Polarization Right Handed Circular Polarization
Dimensions (approx.) (W ×H ×D) 30.4 mm ×11.7 mm ×35.5 mm
Cable (approx.) 5.0 m
Attachment mat size (approx.) 70 mm ×70 mm
AMPLIFIER
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than
0.8% total harmonic distortion
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Signal-to-Noise Ratio 70 dB
Audio Output Level LINE OUT
(FRONT/REAR), SUBWOOFER
Line-Out Level/Impedance 5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Color System PAL
Video Output (composite) 1 Vp-p/75 Ω
Other Terminals Input LINE IN, VIDEO IN, CAMERA IN, USB input, Aerial input
Output VIDEO OUT
Others CD changer, OE REMOTE, DIGITAL OUT (optical)
FM/AM TUNER
Frequency Range FM 87.5 MHz to 108.0 MHz
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 35 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB
LW Tuner Sensitivity 50 µV
DVD/CD
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
VCD/CD 16 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
SD
Compatible File System FAT 32/16/12
Capacity 8 Mbytes to 2 Gbytes

(No.MA427<Rev.001>)1-5
Design and specifications are subject to change without notice.
Data Transfer Rate Maximum 10 Mbps
USB
USB Standards USB 2.0 Full Speed
Data Transfer Rate Full Speed: Maximum 12 Mbytes
Low Speed: Maximum 1.5 Mbytes
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current Less than 500 mA/5V
MONITOR
Screen Size 7 inch wide liquid crystal display
Number of Pixel 336 960 pixels: 480 ×3 (horizontal) ×234 (vertical)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System NTSC/PAL
Aspect Ratio 16:9 (wide)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Storage Temperature -10°C to +60°C
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D)
With trim plate and sleeve at-
tached
Installation Size (approx.) 182 mm ×111 mm ×160 mm
Panel Size (approx.) 188 mm ×117 mm ×10 mm
Mass (approx.) 3.5 kg (including trims and sleeve)

1-6 (No.MA427<Rev.001>)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos-
es. 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 per-
formed 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 characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice 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 charac-
teristics 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 reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna 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, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent 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, 1,000Ωper volt or more sensitivity
in the following manner. Connect a 1,500Ω10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-
posed 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 0.5
mA AC (r.m.s.).
1.2 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.
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 pre-
forming 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)
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

(No.MA427<Rev.001>)1-7
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 diode) in devices such as laser products.
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 sheet) 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.
(3) Handling the optical pickup
• 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.)
• 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 pickup unit.
• Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wire
is disconnected without applying solder, the pickup may be destroyed by static electricity.)
• In the assembly, be sure to remove solder from the short land sections after connecting the card wire.
1M
Conductive material
(conductive sheet) or iron palate
(caption)
Anti-static wrist strap
Solder short part

1-8 (No.MA427<Rev.001>)
1.8 Important for laser products
1.CLASS 1 LASER PRODUCT
2.CAUTION :
(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.
3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.
4.CAUTION : This laser product uses visible and/or 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 defeated. 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 here in may result in
hazardous radiation exposure.
REPRODUCTION AND POSITION OF LABELS and PRINT
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL and PRINT

(No.MA427<Rev.001>)1-9
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the Heat sink (See Fig.1)
(1) Remove the three screws A and four screws Battaching
the Heat sink.
Fig.1
3.1.2 Removing the Rear bracket (See Fig.2 to 4)
(1) Remove the three screws Cattaching the Rear heat
sink.(See Fig.2)
(2) Remove the ten screws Dand one screw Eattaching the
rear bracket. (See Fig.3)
(3) Disconnect the connector wire from Car cable connected to
connector CN601 of the Sub board. (See Fig.4)
(4) Disconnect the connector wire from Fan connected to con-
nector CN604 of the Sub board. (See Fig.4)
(5) Disconnect the card wire from Main board connected to
connector CN605 of the Sub board. (See Fig.4)
(6) Disconnect the connector wire from Main board connected
to connector CN607 of the Sub board. (See Fig.4)
Fig.2
Fig.3
Fig.4
A
B
B
C
E
D
DD
CN605 CN607 CN601 CN604

1-10 (No.MA427<Rev.001>)
3.1.3 Removing the Front chassis (See Fig.5 to 9)
(1) From the bottom side of main body, insert screwdriver to
hole of the third gear from hole aof the bottom chassis, and
the turn the gear to clockwise until Front bracket comes
up.(See Fig.5)
(2) Remove the two screws Fattaching the both side of Front
bracket. (See Fig.6)
(3) Remove the three screws Hattaching the FPC cover. (See
Fig.7)
(4) Remove the two screws Jattaching the SD card cover.
(See Fig.7)
(5) Disconnect the card wires from Front bracket connected to
connector CN803 and CN804 of the Panel board. (See
Fig.8)
(6) Remove the four screws Gattaching the both side of Front
chassis. (See Fig.6)
(7) Disengage two hooks aengaged both side of Front chas-
sis. (See Fig.6)
(8) Disengage two hooks bengaged both side of Front chas-
sis. (See Fig.9)
Fig.5
Fig.6
Fig.7
Fig.8
Fig.9
hole a
hook a
F
G
J
H
CN803 CN804
hook b

(No.MA427<Rev.001>)1-11
3.1.4 Removing the Top chassis (See Fig.10 to 13)
(1) Remove the two screws Kattaching the Front board. (See
Fig.10)
(2) Disconnect the card wire from Main board connected to
connector CN983 of the Sub board. (See Fig.11)
(3) Remove the four screws Lattaching the both side of Top
chassis. (See Fig.12, 13)
Fig.10
Fig.11
Fig.12
Fig.13
K
CN983
L
L

1-12 (No.MA427<Rev.001>)
3.1.5 Removing the Main board (See Fig.14)
(1) Disconnect the connector wire from Mecha switch board
connected to connector CN961 of the Main board.
(2) Remove the four screws Mattaching the Main board.
Fig.14
3.1.6 Removing the Sub board (See Fig.15, 16)
(1) Remove the six screws Nattaching the Sub board. (See
Fig.15)
(2) Disconnect the card wire from DVD mechanism connected
to connector CN602 of the Sub board. (See Fig.16)
Fig.15
Fig.16
M
M
CN961
N
N
CN602

(No.MA427<Rev.001>)1-13
3.1.7 Removing the Navi board and the DVD mechanism
(See Fig.17 to 21)
(1) Remove the two screws Pattaching the Front board brack-
et.(See Fig.17)
(2) Remove the three screws Qattaching the Navi shield
top.(See Fig.18)
(3) Remove the four screws Rattaching the Navi shield bot-
tom.(See Fig.19)
(4) Remove the four screws Sattaching the CPU bracket.(See
Fig.20)
(5) Remove the three screws Tattaching the DVD mecha-
nism.(See Fig.21)
Fig.17
Fig.18
Fig.19
Fig.20
Fig.21
P
Q
Q
Navi shield top
R
R
Navi shield bottom
S
S
T
T

1-14 (No.MA427<Rev.001>)
3.1.8 Removing the Motor board (See Fig.22, 23)
(1) Remove the four screws Uattaching the Mid chassis.
(See Fig.22)
(2) Remove the three screws Vattaching the Motor board.
(See Fig.23)
Fig.22
Fig.23
U
U
V

(No.MA427<Rev.001>)1-15
3.2 Monitor section
3.2.1 Removing the Rear cover (See Fig.1 to 3)
(1) Remove the ten screws A and five screws Battaching the
Rear cover. (See Fig.1, 2)
(2) Disconnect the card wire from Panel board connected to
connector CN881 of the Connection board. (See Fig.3)
Fig.1
Fig.2
Fig.3
A
A
A
A
B
B
CN881

1-16 (No.MA427<Rev.001>)
3.2.2 Removing the Connection board (See Fig.4)
(1) Remove the five screws Cattaching the Connection board.
Fig.4
3.2.3 Removing the Panel board (See Fig.5)
(1) Disconnect the connector wire from LCD module connect-
ed to connector CN403 of the Panel board.
(2) Disconnect the card wire from LCD module connected to
connector CN401 of the Panel board.
(3) Disconnect the card wire from Switch board connected to
connector CN501 and CN502 of the Panel board.
(4) Remove the four screws D attaching the Panel board.
Fig.5
3.2.4 Removing the LCD module (See Fig.6)
(1) Disengage six hooks aengaged Panel bracket.
Fig.6
C
C
D
D
D
D
CN501 CN502
CN401
CN403
hook a
hook a

(No.MA427<Rev.001>)1-17
3.3 DVD mechanism
3.3.1 Removing the Traverse mechanism assembly (See Fig.1 to 6)
(1) Solder the short land section on the flexible wire of pickup.
(See Fig.1)
Caution:
* Solder the short land section on the flexible wire of pickup
before disconnecting the flexible wire form the connector
CN101 on the Front end board.
If the flexible wire is disconnected without attaching the
solder, the pickup may be destroyed by static electricity.
* When attaching the Traverse mechanism assembly, re-
move the solder from the short land section after connection
the flexible wire to the connector CN101 on the Front end
board.
(2) Voltage supply to TP79 and TP81 approx DC 3.0V until
Clamper is shift to loading complete position. (See Fig.2)
(3) Disconnect the flexible wires from Traverse mechanism assembly
connected to connector CN101 and CN164 of the Front end
board. (See Fig.2)
(4) Remove the five screws Aattaching the Top cover assembly.
(See Fig.3)
(5) From the bottom side, disconnect the connector wire from
Top cover assembly connected to connector CN2 of the
Front end board. (See Fig.4)
(6) From the bottom side, remove the spring from Traverse
mechanism assembly. (See Fig.5)
(7) From the top side, pull up the traverse mechanism and disengage
three dumper positions. (See Fig.6)
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Solder short part
CENTER
R21
D- DGND_7
R312
R317
WOOFER
TP67
R357
TP79 TP81
TP92
Voltage supply
position
CN164
CN101
TP81
TP79
A
CN2
Dumper
(same color spring)
Dumper
(Different color spring)

1-18 (No.MA427<Rev.001>)
3.3.2 Removing the Front end board (See Fig.7)
(1) Remove the Motor wires from loading motor soldered to
TP79 and TP81 of the Front end board.
(2) Remove the two screws Battaching the Front end board.
Fig.7
3.3.3 Removing the Loading arm assembly (See Fig.8)
(1) Remove the Loading arm spring L from Loading arm assembly.
(2) Slide to left side and then disengage hook athen hook b.
Fig.8
B
B
TP79
TP81
Loading arm
assembly
Loading arm spring L
hook a
hook b

(No.MA427<Rev.001>)1-19
3.3.4 Removing the Gear base assembly (See Fig.9, 10)
(1) Remove the Loading arm spring L. (See Fig.9)
(2) Remove the two screws Cattaching the Gear base assembly.
(See Fig.10)
Fig.9
Fig.10
3.3.5 Removing the Loading arm holder. (See Fig.11)
(1) Remove the two screws Dattaching the Loading arm holder.
(2) Remove the Loading arm spring R.
Fig.11
Loading arm
spring L
C
D
Loading arm
spring R
Loading arm
holder

1-20 (No.MA427<Rev.001>)
3.3.6 Removing the Loading moor assembly (See Fig.12)
(1) Remove the three screws Eattaching the Loading motor
assembly.
Fig.12
3.3.7 Removing the Slide cam assembly (See Fig.13)
(1) Slide to backward the Slide cam assembly and the remove
the Slide cam spring.
(2) Slide to frontward the slide cam assembly, and then take
out it.
Fig.13
3.3.8 Removing the Photo board (See Fig.14)
(1) Pressing the hook cand then slide to backward (slide to the
arrow side) the Disc plate.
(2) Remove the one screw Fattaching the Photo board.
Fig.14
E
Slide cam assembly
Slide cam spring
hook c
hook c
F
Photo board