Jvc KW-XR418-J, KW-XR417-EE, KW-XR416-UT, KW-XR416-UP, KW-XR416-UH Service Manual
...
SERVICE MANUAL
CD RECEIVER
MA471<Rev.005>20117SERVICE MANUAL
KW-XG56TU, KW-XR411E, KW-XR411EU,
KW-XR411EY, KW-XR414UI, KW-XR416DU,
KW-XR416DUH, KW-XR416DUN,
KW-XR416SUN, KW-XR416U, KW-XR416UH,
KW-XR416UN, KW-XR416UP, KW-XR416UT,
KW-XR417EE, KW-XR418J
only KW-XR418
except
COPYRIGHT © 2011 Victor Company of Japan, Limited
KW-XR411/KW-XR417
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
for KW-XR411/KW-XR417
COPYRIGHT © 2011 Victor Company of Japan, Limited
No.MA471<Rev.005>
2011/7
SPECIFICATION
KW-XR418
AUDIO AMPLIFIER SECTION
Power Output 20 W RMS × 4 Channels at 4 Ω and < 1% THD+N
Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0
Middle ±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25
Treble ±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed)
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Subwoofer-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal USB input terminal, AUX (auxiliary) input jack, Antenna input, Steering wheel remote input
TUNER SECTION
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 9.3 dBf (0.8 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 40 dB
AM Tuner Sensitivity/Selectivity 20 µV/40 dB
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
Max. Bit Rate: 320 kbps
WMA (Windows Media
USB SECTION
USB Standard USB 1.1, USB 2.0
Data Transfer Rate (Full Speed) Max. 12 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Playable Audio Format MP3/WMA
Max. Current DC 5 V 500 mA
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 111 mm × 160 mm (7-3/16" × 4-3/8" × 6-5/16")
Mass (approx.) 1.8 kg(3.9 lbs) (excluding accessories)
Designs & specifications are subject to change without notice.
® Audio) Decoding Format Max. Bit Rate: 320 kbps
Panel Size (approx.) 188 mm × 117 mm × 23 mm (7-7/16" × 4-5/8" × 5/16")
1-2 (No.MA471<Rev.005>)
KW-XR411/KW-XR417
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output
(RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Subwoofer-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack, USB input terminal, Aerial input, Steering wheel remote input
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
MW Tuner Sensitivity 20 µV
LW Tuner Sensitivity 50 µV
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format: (MPEG1/2 Audio Layer 3) Max. Bit Rate: 320 kbps
WMA (Windows Media
USB SECTION
USB Standard USB 1.1, USB 2.0
Data Transfer Rate (Full Speed) Max. 12 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Playable Audio Format MP3/WMA
Max. Current DC 5 V 500 mA
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D):
(approx.)
Mass 1.8 kg (excluding accessories)
Designs & specifications are subject to change without notice.
Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 1% total har-
monic distortion.
Middle ±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25
Treble ±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed)
FM-LO (KW-XR417) 65.0 MHz to 74.0 MHz
AM MW: 522 kHz to 1 620 kHz
LW: 144 kHz to 279 kHz
Usable Sensitivity 9.3 dBf (0.8 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 40 dB
Selectivity 40 dB
® Audio) Decoding Format Max. Bit Rate: 320 kbps
Installation Size 182 mm × 111 mm × 160 mm
Panel Size 188 mm × 117 mm × 23 mm
(No.MA471<Rev.005>)1-3
KW-XR416/KW-XR414/KW-XG56TU
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output
(RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 5.0 V/20 kΩ load (full scale)
Subwoofer-Out Level/Impedance 5.0 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack, USB input terminal, Antenna input
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 9.3 dBf (0.8 µV/75 Ω)
AM Tuner Sensitivity 20 µV
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format: (MPEG1/2 Audio Layer 3) Max. Bit Rate: 320 kbps
WMA (Windows Media
USB SECTION
USB Standard USB 1.1, USB 2.0
Data Transfer Rate (Full Speed) Max. 12 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Playable Audio Format MP3/WMA
Max. Current DC 5 V 500 mA
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D):
(approx.)
Mass 1.4 kg (excluding accessories)
Designs & specifications are subject to change without notice.
Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 1% total har-
monic distortion.
Middle ±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25
Treble ±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed)
AM 531 kHz to 1 602 kHz
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 40 dB
Selectivity 40 dB
® Audio) Decoding Format Max. Bit Rate: 320 kbps
Installation Size 178 mm × 100 mm × 160 mm
Panel Size 184 mm × 112 mm × 23 mm
1-4 (No.MA471<Rev.005>)
SECTION 1
PRECAUTION
1.1 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 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 0.5
mA AC (r.m.s.).
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
0.15 F AC TYPE
Place this
probe on
1500 10W
Good earth ground
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 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 exposed
metal part.
(No.MA471<Rev.005>)1-5
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.
(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 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 connector 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.
1-6 (No.MA471<Rev.005>)
Mechanism control board
CN102
Flexible wire
Short land section
Pickup
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.
!
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
REPRODUCTION AND POSITION OF LABELS and PRINT
WARNING LABEL and PRINT
(No.MA471<Rev.005>)1-7
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-8 (No.MA471<Rev.005>)
SECTION 3
DISASSEMBLY
3.1 Main body (Used model: KW-XR418)
3.1.1 Removing the Front panel (See Fig.1)
(1) Remove the two screws A attaching the both side of the
Front panel.
(2) Disengage four hooks a engaged both side of the Front
panel.
A hook a
Fig.1
3.1.2 Removing the Bottom chassis (See Fig.2, 3)
(1) Remove the two screws B attaching the both side of the
Bottom chassis. (See Fig.2)
(2) Remove the three screws C attaching the Bottom chassis.
(See Fig.3)
(3) Remove the two screws D and two screws E attaching the
Heat sink. (See Fig.3)
(4) Remove the three screws F and one screw G attaching the
Rear bracket. (See Fig.3)
DDEFFG
C
Fig.3
3.1.3 Removing the Main board (See Fig.4, 5)
(1) Remove the two screws H and one screw J attaching the
Side plate. (See Fig.4)
B
Fig.2
HHJ
Fig.4
(2) Remove the three screws K attaching the Main board. (See
Fig.5)
(3) Disconnect B-B connector CN501
nected the CD mechanism and Main board. (See Fig.5)
of the Main board con-
K
CN501
K
Fig.5
(No.MA471<Rev.005>)1-9
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