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)
Power Output20 W RMS x 4 Channels at 4 Ω and ≤ 1% THD+N
Load Impedance4 Ω (4 Ω to 8 Ω allowance)
Frequency Response40 Hz to 20 000 Hz
Signal-to-Noise Ratio80 dBA (reference: 1 W into 4Ω)
Line-Out or Subwoofer-Out Level/Impedance5 V/20 kΩ load (full scale)
Output Impedance≤ 600Ω
TUNER SECTION
FMFrequency Range200 kHz step: 87.9 MHz to 107.9 MHz
50 kHz step: 87.5 MHz to 108.0 MHz
Usable Sensitivity9.3 dBf (0.8 µV/75Ω)
50 dB Quieting Sensitivity16.3 dBf (1.8 µV/75Ω)
Alternate Channel Selectivity (400 kHz)
Frequency Response40 Hz to 15 000 Hz
Stereo Separation40 dB
AMFrequency Range10 kHz step: 530 kHz to 1 700 kHz
Sensitivity/Selectivity20 µV/40 dB
CD PLAYER SECTION
Signal Detection SystemNon-contact optical pickup (semiconductor laser)
Number of Channels2 channels (stereo)
Frequency Response5 Hz to 20 000 Hz
Signal-to-Noise Ratio102 dB
Wow and FlutterLess than measurable limit
USB SECTION
USB StandardUSB 1.1, USB 2.0
Data Transfer Rate (Full Speed)Max. 12 Mbps
Compatible DeviceMass storage class
Compatible File SystemFAT 32/16/12
Playable Audio FormatMP3/WMA/WAV
Maximum Supply CurrentDC 5 V 1 A
BLUETOOTH SECTION
VersionBluetooth 2.1 certified (+EDR)
Power ClassClass 2 Radio
Service Area10 m (10.9 yd)
ProfileHFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3, PBAP 1.0
GENERAL
Power Requirement (Operating Voltage)DC 14.4 V (11 V to 16 V allowance)
Grounding SystemNegative ground
Allowable Operating Temperature0°C to +40°C (32°F to 104°F)
Dimensions (W × H × D)
(approx)
Mass1.8 kg (4 lbs) (excluding accessories)
Installation Size182 mm × 111 mm × 160 mm (7-3/16” × 4-3/8” × 6-5/16”)
Panel Size188 mm × 117 mm × 18 mm (7-7/16” × 4-5/8” × 3/4”)
65 dB
9 kHz step: 531 kHz to 1 611 kHz
• Subject to change without notice.
• If a kit is necessary for your car, consult your telephone directory for the nearest car audio speciality shop.
(No.MA520<Rev.001>)2/16
Page 3
SPECIFICATION
For ASIA
AUDIO AMPLIFIER SECTION
Maximum Power Output50 W per channel
Continuous Power Output (RMS)20 W per channel into 4Ω, 40 Hz to 20 000 Hz at less than 1% total harmonic distortion.
Load Impedance4 Ω (4 Ω to 8 Ω allowance)
Frequency Response40 Hz to 20 000 Hz
Signal-to-Noise Ratio80 dB
Line-Out or Subwoofer-Out Level/Impedance 5 V/20 kΩ load (full scale)
Output Impedance≤ 600Ω
TUNER SECTION
FMFrequency Range87.5 MHz to 108.0 MHz
Usable Sensitivity9.3 dBf (0.8 µV/75Ω)
50 dB Quieting Sensitivity16.3 dBf (1.8 µV/75Ω)
Alternate Channel Selectivity
(400 kHz)
Frequency Response40 Hz to 15 000 Hz
Stereo Separation40 dB
AMFrequency Range531 kHz to 1 611 kHz
Sensitivity/Selectivity20 µV/40 dB
CD PLAYER SECTION
Signal Detection SystemNon-contact optical pickup (semiconductor laser)
Number of Channels2 channels (stereo)
Frequency Response5 Hz to 20 000 Hz
Signal-to-Noise Ratio102 dB
Wow and FlutterLess than measurable limit
USB SECTION
USB StandardUSB 1.1, USB 2.0
Data Transfer Rate (Full Speed)Max. 12 Mbps
Compatible DeviceMass storage class
Compatible File SystemFAT 32/16/12
Playable Audio FormatMP3/WMA/WAV
Maximum Supply CurrentDC 5 V 1 A
BLUETOOTH SECTION
VersionBluetooth 2.1 certified (+EDR)
Power ClassClass 2 Radio
Service Area10 m
ProfileHFP 1.5, OPP 1.1, A2DP 1.2, AVRCP 1.3, PBAP 1.0
GENERAL
Power Requirement (Operating Voltage)DC 14.4 V (11 V to 16 V allowance)
Grounding SystemNegative ground
Allowable Operating Temperature0°C to +40°C
Dimensions
(W × H × D)
Mass1.5 kg (excluding accessories)
Installation Sizeapprox. 178 mm × 100 mm × 156 mm
Panel Sizeapprox. 184 mm × 112 mm × 22 mm
65 dB
• Subject to change without notice.
(No.MA520<Rev.001>)3/16
Page 4
SECTION 1
PRECAUTION
1.1Safety 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
1.2Warning
(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.
1.3Caution
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.
1.4Critical 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.MA520<Rev.001>)4/16
Page 5
1.5Preventing 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.
1.6Handling 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.
1.7Attention 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.
SOLDER
(No.MA520<Rev.001>)5/16
Page 6
1.8Important 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.MA520<Rev.001>)6/16
Page 7
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1Main body (Used model: KW-R900BTJ)
3.1.1 Removing the Front panel (See Fig.1)
(1) Remove the 2 screws A attaching the both side of the Front
panel.
(2) Disengage 4 hooks a engaged both side of the Front panel.
(2) Remove the 3 screws C attaching the Bottom chassis.
(See Fig.3)
(3) Remove the 3 screws D and 1 screw E attaching the Heat
sink. (See Fig.3)
(4) Remove the 6 screws F and 1 screw G attaching the Rear
bracket. (See Fig.3)
hook
A
3.1.2 Removing the Bottom chassis (See Fig.2, 3)
(1) Remove the 2 screws B attaching the both side of the Bot-
tom chassis. (See Fig.2)
a
Fig.1
F
G
DF
E
C
Fig.3
3.1.3 Removing the Electric unit (See Fig.4, 5, 6)
(1) Remove the 2 screws H and one screw J attaching the
Side plate. (See Fig.4)
B
HHJ
Fig.4
Fig.2
(No.MA520<Rev.001>)7/16
Page 8
(2) Remove the 3 screws K attaching the Electric unit. (See
Fig.5)
K
K
3.1.5 Removing the Switch unit (See Fig.8)
(1) Remove the Volume knob.
(2) Disconnect the connector wire connected to connector
of the Switch unit.
CN602
(3) Remove the 13 screws M attaching the Switch unit.
CN602
Fig.5
(3) Disconnect B-B connector CN502 of the Electric unit con-
nected the CD mechanism and Electric unit. (See Fig.6)
CN502
Fig.6
3.1.4 Removing the CD mechanism (See Fig.7)
(1) Remove the 3 screws L attaching the CD mechanism.
M
M
M
Fig.8
L
L
Fig.7
(No.MA520<Rev.001>)8/16
Page 9
3.2CD mechanism assembly section
3.2.1 Removing the Mecha control board
(1) Solder the short land on the pickup. (See Fig. 1)
SOLDER
3.2.2 Removing the Traverse mechanism (See Fig.4, 5)
(1) Remove the 5 springs from the traverse mechanism. (See
Fig.4)
Fig.1
(2) Remove the 8 wires from the Mecha control board. (See
Fig.2)
BLACK
RED
WHITE
YELLOW
ORANGE
ORANGE
WHITE
YELLOW
Fig.2
(3) Disconnect the flexible wire from the pickup connected to
the connector CN102
on the Mecha control board. (See
Fig.3)
(4) Remove the 2 screws A attaching the Mecha control board.
(See Fig.3)
Fig.4
(2) Remove the 3 screws B attaching the bottom frame as-
sembly. (See Fig.5)
(3) Remove the 3 dumpers from the bottom frame assembly.
(See Fig.5)
B
B
Fig.5
3.2.3 Removing the Pickup (See Fig.6, 7)
(1) Remove the 2 screws C attaching the feed bracket assem-
bly. (See Fig.6)
CC
Fig.3
A
CN102
Fig.6
(No.MA520<Rev.001>)9/16
Page 10
(2) Remove the shaft from the TM base. (See Fig.7)
(3) Disengage the hook a on the pickup from the TM base.
(See Fig.7)
shaft
(2) Remove the HC CL. base from the holes on the TM base.
(See Fig.9)
Fig.9
(3) Remove the 2 screws D attaching the spindle motor. (See
Fig.10)
D
Fig.7
3.2.4 Removing the Spindle motor (See Fig.8. 9)
(1) Remove the HC CL. Spring from the HC CL. base and the
TM base, and then lift up the HC CL. base. (See Fig.8)
HC CL. spring
[ SIDE VIEW ]
Fig.8
Fig.10
(No.MA520<Rev.001>)10/16
Page 11
3.2.5 Removing the Loading motor
(1) Remove the roller arm assembly from the bottom frame as-
sembly. (See Fig.11)
Fig.11
(2) Remove the 2 screws E attaching the loading motor as-
sembly, and then remove the loading motor assembly in
the direction of the arrow. (See Fig.12)
E
Fig.12
(No.MA520<Rev.001>)11/16
Page 12
SECTION 4
ADJUSTMENT
4.1General Mode Functions
4.1.1 Micon Software / Firmware Version Checking Mode
Refer to “Service Mode” .
4.1.2 Service Mode
Refer to “Service Mode” .
4.1.3 Production Test Mode
Key to enter:
(1) In any Source
(2) In "Power On" condition, press and hold [MENU] + [POW-
ER] for 2s
(3) "PRODUCTION TEST" to be displayed in the display.
(4) Power off and On the unit to return to Normal mode.
Default setting value under Production Mode:
ItemSetting
Volume0 to 44(max)
BeepOFF
DemoOFF
SUB.W LEVELSUB.W 04
SUB.W LPFMID 85Hz
EQFLAT
* Only in "Power On" condition will be able to enter the Production Mode. Setting Value cannot be store under Production
Mode.
4.1.4 Volume 44
Key to enter:
(1) In any Source
(2) In "Power On" condition, press and hold [MENU] + [POW-
ER] for 2s → to enter Production Mode.
(3) Press and hold [BACK] + [UP] 3s → to enter Vol 44 mode
(4) LCD display shall display the following information after en-
tering this mode.
4.1.5 Bluetooth Test Mode
Key to enter:
(1) In any Source
(2) Press and hold [BACK] + [POWER] 3s
(3) Press [VOL] Key to select the display item
(4) Select "Mic Test" to test the Quality of the mic (Clear and
no noise).
TEST MODE
MIC TEST
IN PROGRESS
FINISHED
(5) Once "FINISHED", power off and On the unit to return to
Normal mode.
4.1.6 Bluetooth Connectivity Check Mode
* BT Connectivity Check Mode is for user checking BT connectivity.
Key to enter:
(1) Only In Bluetooth mode with the attached USB Bluetooth
Adapter
(2) Press and hold [Phone]+ Press [VOL] 3s → to perform BT
connectivity check mode
4.1.7 User Entry Mode
Key to enter:
(1) Only applicable for J&U series in Tuner Source
(2) Press and hold [DISP] + Press [VOL] 3s
(3) LCD display shall display the following information after en-
tering this mode.
VOLUME44
Details:The display will shown "VOLUME 44" for 2s. After
2s,it will return back to the initial source.
(5) Power off and On the unit to return to Normal mode.
* Only applicable under Production Mode.
(No.MA520<Rev.001>)12/16
Details:Rename Tuner Station. It can be alphabets/numbers/symbols up to maximum 11 charaters
(4) To rename the Tuner Station, turn [Vol] left or right to select
alphabets/number/symbol
(5) Press [] key for next character.
(6) Press [Vol] to enter/confirm the name of the station.
(7) Press [BACK] to exit the mode.
Page 13
4.2Service Mode
Force Eject mode
Long Press [Eject]
1DIN: No display on screen as panel will be flipped down.
2DIN: Normal pattern + Eject
Service mode
Key to enter:
(1) In any Source
(2) Press and hold [MENU] + [DOWN] for 3s
(3) Mode Select: [VOL] turn
Service Mode
Mecha Display
Data Clear
VOL press
BACK press
VOL press
BACK press
VOL pressVOL press
BACK
press
Version
MAIN**** Panel V***
HD V***** R**-**
MINI V****USB V****
CD ###
Initialize All
VOL turn
Name Clear
VOL turn
CD Error Clear
VOL turn
USB Error Clear
VOL turn
CH Error Clear
VOL turn
Init Bluetooth
Panel micon Rom Correction
Shows Telechips Mini firmware version.
Where ### = HC1, HC2 mecha mount status display
HC1 = HC1 mecha, HC2 = HC2 mecha, *** = can not detect.
This display should be shown in every source with or
without disc inside mecha.
Initialize
After the clearing is a normal pattern
VOL press
Name Clrar
After the clearing is a normal pattern
VOL press
CD Error Clear
After the clearing is a normal pattern
VOL press
USB Error Clear
After the clearing is a normal pattern
VOL press
CH Error Clear
After the clearing is a normal pattern
VOL press
Init Bluetooth
After the clearing is a normal pattern
(No.MA520<Rev.001>)13/16
Page 14
CD Service Mode
BT Memorize Mode
HD Service Mode
* HD model only
VOL press
BACK press
VOL press
BACK press
VOL press
BACK
press
Sequence and description of Labels:-
FG0:- Focus gain automatic adjustment value in normal-speed mode (for setting use)
FEXP0:- Focus gain automatic adjustment value in normal-speed mode (for setting use)
FBAL:- Focus balance adjustment value
FRR:- Focus low-band feedback coefficient
TG0:- Tracking gain automatic adjustment value in normal-speed mode(for setting use)
TEXP0:- Tracking gain automatic adjustment value in normal-speed mode(for setting use)
TBAL:- Tracking balance adjustment value
TRR:- Tracking low-band feedback coefficient
FC:- Focus phase compensation coefficient
FR:- Focus low-band compensation coefficient
TC:- Tracking phase compensation coefficiennt
TR:- Tracking low-band compensation coefficient
FC2:- Focus phase compensation coefficient at vibration
FR2:- Focus low-band compensation coefficient at vibration
TC2:- Tracking phase compensation coefficient at vibration
TR2:- Tracking low-band compensation coefficient at vibration
FG2:- Focus gain coefficient mantissa part at vibration (for setting use)
FEXP2:- Focus gain coefficient exponent part at vibration (for setting use)
TG2:- Tracking gain coefficient mantissa part at vibration (for setting use)
TEXP2:- Tracking gain coefficient exponent part at vibration (for setting use)
TRVG0:- Traverse gain setting
OFSAC:- Ac offset adjustment value
OFSBD:- BD offset adjustment value
OFSE:- W offset adjustment value
OFSF:- F offset adjustment value
OFTD:- OFTduty measurement result
FMAX:- FE signal maximum value (8-bit 2's compliment)
FMIN:- FE signal minimum value (8-bit 2's compliment)
TMAX:- TE signal maximum value (8-bit 2's compliment)
TMIN:- TE signal minimum vlaue (8-bit 2's compliment)
FE_Gain:- Final digital gain setting
TE_IAGain:- TE initial analog gain setting
TE_AGain:- TE analog gain
TE_DGain:- TE digital gain
FE_AGain:-FE analog gain
Corresponding Address (HEX) : 00 ~ 6F
In Progress
*USB device should be connected bofore starting this function.
*Front USB is prioritized if USB devices are connected in both front and rear.
* All key is invalid expect 'Power' key.
SM
IDM
MP
ADJ
***
V***
***
***
Complete or Error Please power off
ROM Correcti on Mode
DCOK
or
DC Error
VOL press
BACK press
VOL pressVOL press
BACK pressBACK press
VOL turn
IFBW
IF
QI
SNR
BCNT
AGAIN
SPROC
VOL press
BACK press
DC1 OK
DC2 0
No DC error condition
DC1 Error
DC2 x
x:- number of time DC2 is detected
******
VOL turn
ROM CORRECTION
Version
* * * NON : when no ROM correction is done
VXX : when ROM correction is done
*
**
**
*
**
**
***
VOL press
BACK press
Clear DC1 Error?
VOL press: DC1 OK
Clear DC2 Error?
VOL press: DC2 x
(No.MA520<Rev.001>)14/16
Page 15
4.3DC Offset error description
A
4.3.1 DC Offset detection circuit design
•Purpose:
To prevent breakdown, burning and emitting smoke from customer's car speaker when occur DC offset between speaker
output "+" and "-".
• Target:
Detect DC offset, then stop the Power Amp operation and shift
to specified condition.
4.3.2 Possible causes of DC offset at speaker output lines
(1) Mis-connection for Speaker output for example touch to car
body or battery line.
(2) Current leak of coupling capacitor for Power IC input.
(3) Current leak of Ac-GND capacitor for Power IC Ac-GND.
(4) Capacitor shorted of above parts due to foreign object.
C-tc
E-Vol
Win_TC
Win_In
DC Error
C-in
C-in
R3
C-in
C-in
C-ac2C-ac1
Sw5V
R2
R1
C3
R4
Audio Pwr Amp
In 1
In 2
In 3
In 4
AcGnd
Offset Detect
Out
Micon
ADC In
4.3.3 Type of checking
4.3.3.1To detect DC Offset Error
• Mis-connection
- Short any one speaker out line to GND or Vcc
• Capacitor leak
- Parallel 330kΩ to either any one of coupling cap or Ac-GND
cap (to simulate current leakage of capacitor)
- Shorted either any one of coupling cap or Ac-GND cap.
4.3.3.2To avoid mis-judge music as DC offset error
• Low frequency signal (17Hz or 20Hz) is more prone to cause
mis-detection.
- Play 17Hz (or 20Hz) signal and make sure micon will not de-
tect and judge this as happen DC offset error.
4.3.4 Detection Timing chart
50ms
or more
PWIC_STBY
PWIC_MUTE
2.0sec or more
1.5sec or more
0.8sec
0.7sec or more
1.0sec
4.3.5 Manipulate after detect DC Offset
• If detected error 10 consecutive times, and 10th error occurred
in "Mis-connect detection period", judge as "Mis-connect".
• If detected error 10 consecutive times, and 10th error occurred
in "Capacitor leak detection period", judge as "Capacitor leak ".
• If detected error 10 consecutive times, and 10th error occurred
in "Other detection period" and detected another 10 errors consecutively, then judge as "Other".
- key access disable except button of Eject, Reset and service
mode
- record error in EEPROM "DC2 #" (# means counter number)
- Set can be recovered by pressing the Reset button before
the capacitor leak error counter reach "DC2 4".
After that, only clear the counter back to "0" can recover the
set.
• If judge as "Other" (manipulation same as mis-connect)
4.3.6 How to clear the DC offset error recorded in EEPROM
Refer to”Service Mode”.
SECTION 5
TROUBLESHOOTING
This service manual does not describe
TROUBLESHOOTING.
UD_MUTE
Missconnect
detection period
Capacitor leak
detection period
Other (miss detection etc.)
detection period
(No.MA520<Rev.001>)15/16
Page 16
JVC KENWOOD Corporation
Car Electronics Business Group 2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525, Japan
(No.MA520<Rev.001>)
Printed in Japan
VSE
Page 17
SCHEMATIC DIAGRAMS
18
CD RECEIVER
KW-R900BTJ KW-R900BTU
(No.MA520<Rev.001>)1/
Page 18
■ PRECAUTIONS ON SCHEMATIC DIAGRAMS
z Due to the improvement in performance, some part numbers shown in the circuit diagrams
may not agree with those indicated in the Parts List.
z The parts numbers, values and rated voltage etc. in the Schematic Diagrams are for
reference only.
z Since the circuit diagrams are standard ones, the circuits and circuit constants may be
subject to change for improvement without any notice.
■ PRECAUTIONS ON PARTS LIST
z
The parts identified by the symbol are critical for safety. Whenever replacing these parts, be sure to
use specified ones to secure the safety.
z
The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No.
columns will not be supplied.
z
P.W. BOARD Ass'y will not be supplied, but those which are filled with the Parts No. in the Parts No.
columns will be supplied.
z
When ordering chips, screws etc., place bulk orders (unit of tens) whenever possible to improve
shipping efficiency.
z
There are cases where the actual implemented parts in the sets and the service parts are different.
When ordering parts, make sure to refer to the Parts List.
■
PRECAUTIONS ON SERVICE
Certain parts of the power circuits and the GNDs differ according to the models. Care must be
taken for the following points as the differences are indicated separately in the LIVE GND () and
the ISOLATED (NEUTRAL) GND ().
1.Do not touch the LIVE GND, or do not touch the LIVE GND and the ISOLATED (NEUTRAL)
GND at the same time. It may cause an electric shock.
Before pulling out the chassis or other parts, make sure to pull out the power cord from the
wall outlet first.
2.Do not short circuit between the LIVE GND and ISOLATED (NEUTRAL) GND, or never
measure the LIVE GND and ISOLATED (NEUTRAL) GND at the same time using measuring
instruments (oscilloscope, etc.). It may blow fuses or damage other parts.
■ DEVIATION TOLERANCE RANGE
DEVIATION TOLERANCE RANGE
F G J K M N R H Z P
± 1% ± 2% ± 5% ±10% ±20% ±30%
+30%
-10%
+50%
-10%
+80%
-20%
+100%
-0%
18
(No.MA520<Rev.001>)2/
Page 19
IC941
LDO 5V
(1A)
IC932
LDO 5V
(1A)
IC931
DC/DC
CONVERTOR
IC921
3.3V LDO
REGULATOR
IC902
3.3V LDO
IC901
REGULATOR
JVC
IC801
BUS
IC771
EEPROM
MICON
IC701
REMOCON
IC681
LCD DRIVE
IC661
IC601
CONVERTOR
D/A
IC601
CONTROL
RGB
CD
L.P.F.
IC581
CD
DSP
IC541
BTL
DRIVER
IC501
1.8V
REGULATOR
IC491
IC481
iPOd IC
IC471
MCLK SW
USB/CD
IC442
SDRAM
FLASH ROM
IC441
IC402
EEPROM
IC401
TELECHIPS
USB DSP
AMP
IC301
POWER
IC201
AUDIO DSP
ELECTRICAL
VOLUME
IC161
IC90
MIC AMP
TUNER IC
IC1
RESET
SWITCH
LINE OUT REAR
J321
LINE OUT
LINE OUT FRONT
SUBWOOFER
FRONT LEFT(+)
FRONT LEFT(-)
FRONT RIGHT(+)
FRONT RIGHT(-)
REAR LEFT(+)
REAR LEFT(-)
REAR & FRONT
SUBWOOFER
MUTING
CIRCUIT
RST
MUTE
MICONPS2
REAR L
REAR R
FRONT R
FRONT L
SUBWOOFER
VDD5V
DC-OFFSET
CLLIPDET
VDD3.3V
14.4V MEM
SWREG
EN 0
6.2V
GND
EN0
CD-L
CD-R
6.2V
EN1
GND
FLG0, FLG1
P.IC MUTE
& MUTING
TRANSISTORS
CN901
DETECT
DIMMER INPUT
TU.L
TU.R
REAR RIGHT(-)
AUTO ANT, AMP REMOTE
STEERING REMOTE
TU/RDSCL
TU/RDSDA
EEPROM-DI
EEPROM-DO
EEPROM-CLK
To SPK,
BATTERY, GND
ANT JACK
MI
CN472
UH1+
UH1-
GND
USB5V R
CN90
(REAR)
To USB Cable
PS2
MUTE
MICON
CDON
PS1
CTRL1
CTRL2
ILM
POWER
VOL DA
VOLCK
MUTEA
MUTE0
MUTE1
MUTE2
EN0
EN1
BEEP
SW1
BUSINT
BUSSCK
/BUSI/O
BUSSI
BUSSO
ACIN2R
ACIN2L
ACOUTR
ACOUTL
ACIN0R
ACIN0L
ACIN1R
DISPPDN
VOLCK
VOLDA
RESET
ACIN1L
For J version
J-DATA
J-CLK
ADIN0
CH.L
CH.R
J801
To JBUS Connector
For J version
SW5V
PS2 BATT
REAR RIGHT(+)
DC ERR
EACH BLOCK
ELECTRIC UNIT
NRST
LRCK
MSW
BCK
SRDATA
BLKCK
3.3V
TRST
MUTE CTL
UART TX
UART RX
CDMCLK
ADIN0
UH0+/UH0-
UH1+UH1-
AOUT L/R
LOAD
MCLK
MDATA
SD_SEL
SW1
SW2
PSW
SW3
SPINDLE+
FEED+
FEED-
TRACKING+
TRACKING-
SPINDLE-
3.3V
CN442&CN441&CN444
CN442&CN441&CN444
SDA/SCL
AOUT L/R
ADIN0
CDON
TRST/MUTE CTL/UART TX/UART RX
USBH1D+/USBH1D-
USBH0D+/USBH0D-
SW1/SW2/SW3/PSW
LOAD/MSW
USB UNIT
BLOCK DIAGRAM
1.8V
DAO1
BCLK1
/DACMS
LRCLK1
DACMC
DACMD
MCLK
CLK SW/MCLK1
EPSDA/EPSCL
CDMCLK
FEED+
CD PLAYER UNIT
XA0-21
XD0-15
MLD/BLKCK/NRST/MDATA/MCLK/STAT/BCK/LRCK/SRDATA
FOCUS-
FOCUS+
VF1.VF2
VT1.VT2
MD.LD
3.3V
DISPRST
CIRCUIT
DISP RESET
GND
USB5V
CN502
CN101
SW1
SW2
SW3
PSW
UH0+
UH0-
KEYDATA
DISPCLK
DISPDATA
DISPCE
REMOCON
CN701
CN601
TRACKING+
FOCUS+
TRACKING-
FOCUS-
MOTOR
POSITION
SET SWITCH
PICK UP
MOTOR
SPINDLE
PSW
SPINDLE+
SPINDLE-
SW1
SW2
SW3
VF1/VF2
VT1/VT2
LD/MD
REMOCON
DISPCE
R,G.B
SDA,SCL
ALL LEDs
SW1,SW2,SW3
GND
USB5V
D-
D+
VOL2
EN601
VOL1
ILL 10V
KEYDATA
DISPRST
DISPCLK
CN603
ROTARY
KEY0
KEY1
D0-D7
VDD
S661 TO
LCDWR/RD
THERMAL
LCDCL/CS/RST
SWITCH UNIT
KEY
S677
ENCODER
J601
AUX IN
FRONT USB
USB JACK
CN602
LCD
DISPDATA
FEED-
LOAD&FEED
STAT
SW5V
AOUT L/R
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)3/
Page 20
CONDITION
---FM MODE.( )CD MODE.AM MODE.
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.2V
0V
2.4V
2.4V
2.4V
0.0V
8.3v4v4v
4v
4v4v4v
4v
4v
8.3v
0v
3.4v
3.3v
3.3v
3.3v
3.3v
3.3v
3.3v
8.3V
2.8V
4.2V
2.8V
7.6V
0.7V
3.3V
0.8V
0V
5.2V
4.9V
0V
5.2V
5.2V
3.3V
10.0V
14.4V
1.6V
4.4V
1.0V
1.2V
0V
5.2V
1.6V
3.3V
9.9V
14.4V
1.0V
1.2V
0V
5.2V
0V
3.3V
3.3V
0.1V
3.3V
3.3V
4.2V
0.2V
0V
0V
0V
0.6V
3.0V
0V
0V
4.8V
0V
0V
0V
0V
3.3V
3.3V
(1/8W)
0v
(1/10W)
SYNCVCFB
GND
EN
LX
BST
IN
SYNCVCFB
GND
EN
LX
BST
IN
NCEN
GNDNC
FBNC
VCC OUT
RESET
DISPRST
USB_5V
USB_GND
USB_GND
D+
D-
AUX_L
REF1B
VSS4
AUDIO DSP
1.8v
DZF
PDN
VSS3
SDA
SCL
2.4V
CLKO
2.4V
DVDD
2.4V
2.4V
2.4V
3.3V
0.0V
4.8v
4.8v
4.8v
3.3V
2.1v
0.0V
2.1v
2.4V
0.0v
0.0V
0.0V
AOUT2L
AOUT3L
AOUT3R
AVDD
VREFH
VSS1
TSTI
VCOM
AINL
AINR
AOUT1R
AOUT1L
AOUT2R
BICK
LRCK
SDT01
SDT02
SDT03
XTI
XTO
VSS2
3.3v
3.3v
NC
NC
TU-SDA
TU-SCL
7 6 532
1
LEARNING2
LEARNING1
22K
22K
22K
22K
RT1P141C-X
RT1N141C-X
10K
10K
10K
10K
RT1P241C-X
RT1N241C-X
4.5v
3.3v
3.3v
3.3v
3.3v
3.3v
3.3v
3.3v
0v
8.3v
0v
3.3v
3.3v
3.3v
3.3v
3.3v
3.3v
3.3v
3.3v
7.0V
7.0V
7.1V
4.6V
4.9V
4.9V
4.9V0V4.9V
2.2V
14.3V
14.4V
1.6V
8.4V
0V
0V
1.25V
1.25V
9.9V
AUX_G
NC
BUZZER
**
ONLY
NOT USED/USEDUSED/NOT USED
L10 / R9
10K/5.1KNOT USED/10K
CLIPDET
RE.USB5V
FR.USB5V
QAM1331-001QAM1332-001
0V
0V0V0V
0V0V
5V DSP REG
(1/10W)
(1/10W)
NC
PITSWL
OUTSWR
VDDLD
GNDLD
OUTLR
OUTLF
OUTRF
OUTRR
WINTC2
WINTC1
DCERR
WININ
MUTE2
MUTE1
MUTE0
MUTEA
SE1L
SE1R
SE0R
SE0L
QD1RDCSEL
NC
QD1L
QD1G
QD0R
QD0G
QD0L
CREF
GNDA
VCC
SDA
SCL
SE2R
SE2L
ACOUTL
ACOUTR
ACIN0L
ACIN0R
ACIN1L
ACIN1R
ACIN2L
ACIN2R
NC
MUTE2
MUTE1
MUTE0
C204-C207,C214-C217: QERF1EM-475Z-E
USED
KW-R900BTU
USED
5V
ILM.10V
ILM.ADJ
CTRL2
9V
SW5V
VDD5V
ACC.IN
DISPCE
DISPCLK
DISPDATA
KEYDATA
REMOCON
10V
C335-C338: NCB21CK-474X-A
IS COMBINED. BUT POP NOISE MIGHT OCCUR.
CURRENT CONDITION: SUB-MUTE AND NORMAL MUTE
ADD D781,Q781
IF SUB-MUTE NEEDS TO BE SEPARATED FROM
NORMAL MUTE, WE NEED TO:
REMOVE R786 (3 PAIR)/ REMOVE R785 (2 PAIR)
MUTING
IN
EN
SW3.3V
*
*
TELMUTE
OE REMOTE
FRONT RIGHT(+)
FRONT RIGHT(-)
FRONT LEFT(-)
FRONT LEFT(+)
REAR LEFT(+)
REAR LEFT(-)
REAR RIGHT(-)
REAR RIGHT(+)
5V
*
CIRCT
RST
MICON
DISP.
ONLY
SERIES
KD-R820
FOR
MUTE
SUBMUTE
PW.IC MUTE
SW5V
VDD3.3
RESET
PS2
MUTING CIRCUIT
BATT DETECT PS2
CD8V
9V-ADJ
MEM-IN
CTRL1
GND
ACC5V
ANTOUT
EXT
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.2V
3.2V
3.2V
0V
0V
0V
0V
3.1V
2.6V
3.1V
3.3V
0V
0V
3.2V
3.3V
3.3V
0V
0V
3.4V
0V
0V
0V
(1/10W)
*
FLAG1
FLAG0
NC
NC
NC
NC
NC
NC
NCOPEN
NC
RxM
NCNCNCNCNCNCNC
MUTEA
NC
DSPPDN
D711-D713:
3.3V
0V
4.9V4.9V
AGND
( )
VOUT
VIN
GND
CTRL
*
*
*
NOT USED
JVC BUS CIRCUIT, R759, R762, R763,R764, R765, C163, C173
NOT USED
AUTO ANTENNA CIRCUIT
KW-R900BTJ
GND
9V-TCC
UH0-
USB3.3
GND
USB5V
MUTE.CTL
TRST
USBRX
USBTX
UH0+
*
MEMORY
ACC
REMOTE
AUTO ANTENNA
GND
ILLUMINATION
EACH
USE 1/10W
R5 & R8
KW-R900BTJ
USED FOR
MAIN PWB:GEB10326A
CIRCUIT
SUBWOOFER
FOR U VERSION ONLY
SUBWOOFER 5V AMP
E.VOLUME
REMOTE
STEERING
UNLESS OTHERWISE SPECIFIED.
NOTES
2.
1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL
ALL RESISTANCE VALUES ARE IN OHM.
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE(V)
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE(V)
ALL CAPACITANCE VALUES ARE IN uF(p=pF)
ALL RESISTANCE VALUES ARE IN OHM.
ALL CAPACITORS ARE 50V OR 25V OR 16V CERAMIC CAPACITOR.
UNLESS OTHERWISE SPECIFIED:
VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL
NI INDICATES NOT INSERTED.
ALL RESISTORS ARE 1/16W +5% METAL GLAZE RESISTOR.
U0-
U0+
USB.GND
USB.GND
SCLK
MIC
U1-
U1+
SW3
ESDA
ESCL
ESDA
ESCL
SW3
SW2
SW2
OE
XA20
SW1
URX
UTX
SW1
PSW
MIC
FWD
REV
B.MUTE
RESET
A.MUTE
USB1.EN
A.MUTE
RESET
USB3.3V
USB0.EN
NOR_CS
WE
A_GND
NRST
D_BCLK
D_LRCLK
D_SDATA
USB1.EN
USB0.EN
D_RESET
RESET
PSW
DACMS
DACMD
CD16M
MLD
A9V
DAC_R
DAC_L
CD16M
BLKCK
STAT
MCLK
MDATA
MCLK
MLD
STAT
BLKCK
MDATA
DACMC
DAO
BCLK
LRCLK
REV
MODE0
MODE0
XA0
DAO
CLKSW
XA12
XA11
XA10
XA9
XA8
XA7
XA6
XA5
XA4
XA3
XA2
XA1
XA0
XD4
XD5
XD6
XD7
XD8
XD9
XD10
XD11
XD12
XD13
XD14
XD15
NRST
XD3
XD2
XD1
XD0
D_BCLK
D_LRCLK
D_SDATA
DACMD
DACMC
DACMS
CLKSW
SCLK
LRCLK
BCLK
U1+
U1-
U0+
U0-
UTX
URX
B.MUTE
FWD
NOR_CS
OE
SDCS
SDCKE
SDCLK
XA21
XA20
XA19
XA18
XA17
XA16
XA15
XA14
XA13
XA16
XA15
XA14
XA13
XA12
XA11
XA10
XA9
XA8
XA19
WE
D_RESET
XA18
XA17
XA7
XA6
XA5
XA4
XA3
XA2
XA1
XD0
XD8
XD1
XD9
XD2
XD10
XD3
XD11
XD4
XD12
XD5
XD13
XD6
XD14
XD7
XD15
XA3
XA2
XA1
XA0
XA10
XA14
XA13
SDCS
XA16
XA15
WE
XA21
XD0
XD1
XD2
XD3
XD4
XD5
XD6
XD7
XA4
XA5
XA6
XA7
XA8
XA9
XA11
SDCKE
SDCLK
XA20
XD15
XD14
XD13
XD12
XD11
XD10
XD9
XD8
12MHz
X401
TMS
TCK
TRST
GND
BM2
TDO
UIRX
U1TX
TDI
NI
R471
R417
270
R462 0
R463 0
R610
NI
22k
R409
R602
NI
R434
R481
47k
2.2k
R421
R416
270
22k
R408
4.7k
R423
4.7k
R415
R605
22
R425
1k
R604
22
R606
22
1/8W
R608 180
R607
22
R603
R601
R426
4.7k
R427
4.7k
R428
100
R420 4.7k
R441
0
R419 4.7k
R457 33
R456 33
R455 33
R418 4.7k
R414 33
NI
R442
R443 4.7k
R405 1M
R429
4.7k
R413 33
R412 33
R411 33
2.2k
R422
R410
4.7k
R458 0
R430100
NI
R465
R403
47
R404
150
NI
R464
R407
R450 NI
NI
R468
0
R469
R431100
NI
R470
R402
47
10k
R435
R436
10k
1/8W
R609 180
R521
R454
R453
R452
R451
R406
R449 NI
R448 NI
R447 NI
R401
47
R432
1k
R446 4.7k
R445
4.7k
NI
R459
R444 47k
LTC044EUB-X
Q401
LF409
LF410
0.12L402
0.12L401
L407
L491
4.7
L404
L406
150
L403
L601 47
L405
K443
K442
NI
K450
K444
K447
K445
NIK449
NQR0286-007X
K446
K441 NQR0502-001X
NIK454
K448
K452
K453
NQR0022-005X
K451
XD3128
XD2127
XD1126
XD0125
VDDI124
GPIOA15/EXINT3123
GPIOA14/EXINT2122
GPIOA13/EXINT1121
GPIOA12/EXINT0120
VDDIO119
VSS118
GPIOA11/SCL117
GPIOA10/SDA116
GPIOA9/SCL115
GPIOA8/SDA114
GPIOA7/SDI1113
GPIOA6/FRM1112
GPIOA5/SCK1111
VDDI110
GPIOA4/SDO1109
GPIOA3/CDAI108
GPIOA2/CLRCK107
GPIOA1/CBCLK106
GPIOA0/SPDIFTX105
nTRST_JTAG104
TDO103
TCK102
TMS101
TDI100
GPIOD2199
GPIOD2098
VSS97
UART1RX
96
UART1TX
95
GPIOD17
94
GPIOD16
93
GPIOD15/UART1CTSn
92
VDDI
91
GPIOB25/DAI
90
GPIOB24/DAO/BM2
89
GPIOB23/MCLK
88
GPIOB22/LRCK/BM1
87
GPIOB21/BCLK/BM0
86
VDDIO
85
VDDUSB
84
USB1D+
83
USB1D-
82
VSS
81
USB0D+
80
USB0D-
79
MODE1
78
nRESET
77
VSSPLL
76
XFILT
75
VDDPLL
74
VDDPLL1
73
XFILT1
72
VSSPLL1
71
VSSADC
70
VDDADC
69
ADIN0
68
ADIN2
67
ADIN4
66
VDDIO
65
READY/MODE0 64
CTRL/UART0RX/GPIOB9 63
FLAG/UART0TX/GPIOB8 62
ND_nWE/GPIOB7 61
GPIOB6/IIDE_nCS 60
VSS 59
VDDI 58
XTIN 57
XTOUT 56
XIN 55
XOUT 54
nCS3/ND_NOE3/GPIOB5 53
nCS2/ND_NOE2/GPIOB4 52
nCS1/ND_NOE1/GPIOB3 51
nCS0/ND_NOE0/GPIOB2 50
nOE 49
nWE 48
SD_nCS/GPIOB1 47
SD_CKE/GPIOB0 46
VSS 45
SDCLK 44
VDDIO 43
XA21/DQM0 42
XA20/DQM1 41
VDDI 40
XA19/DQM1 39
XA18/DQM0 38
XA17/ND_CLE 37
XA16/SD_nRAS/ND_ALE 36
XA15/SD_nCAS 35
XA14/BA1 34
XA13/BA0 33
XA12
32
XA11
31
XA10
30
XA9
29
XA8
28
XA7
27
VDDIO
26
VSS
25
VDDI
24
XA6
23
XA5
22
XA4
21
XA3
20
XA2
19
XA1
18
XA0
17
XD15
16
XD14
15
XD13
14
XD12
13
XD11
12
XD10
11
XD9
10
VDDIO
9
VSS
8
VDDI
7
XD8
6
XD7
5
XD6
4
XD5
3
XD4
2
VSS
1
TCC8600
IC401
VSS
54
DQ15
53
VDD
1
DQ0
2
VDDQ
3
DQ1
4
DQ2
5
VSSQ
6
DQ3
7
DQ4
8
VDDQ
9
DQ5
10
DQ6
11
VSSQ
12
DQ7
13
VDD
14
LDQM
15
/WE
16
/CAS
17
/RAS
18
/CS
19
BA0
20
BA1
21
A10/AP
22
A0
23
A1
24
A2
25
A3
26
VSSQ
52
DQ14
51
DQ13
50
VDDQ
49
DQ12
48
DQ11
47
VSSQ
46
DQ10
45
DQ9
44
VDDQ
43
DQ8
42
VSS
41
NC/RFU
40
UDQM
39
CLK
38
CKE
37
NC
36
A11
35
A9
34
A8
33
A7
32
A6
31
A5
30
A4
29
VSS
28
VDD
27
IC442
A3V28S40FTP-G6
A15
1
A14
2
A13
3
A12
4
A11
5
A10
6
A9
7
A8
8
A19
9
A20
10
/WE
11
RST
12
NC
13
WP/ACC
14
R//B
15
A18
16
A17
17
A7
18
A6
19
A5
20
A4
21
A3
22
A2
23
A1
24
A0
25
/CE
26
VSS
27
/OE
28
D0
29
D8
30
D1
31
D9
32
D2
33
D10
34
D3
35
D11
36
VCC
37
D4
38
D12
39
D5
40
D13
41
D6
42
D14
43
D7
44
D15
45
VSS
46
/BYTE
47
A16
48
IC441
EN29LV320BT70TI
NC
20
NC
19
NC
18
NC
17
NC
16
NC
15
MODE0
14
I2C_SDA
13
I2C_SCL
12
VSS
11
NC
10
NC
9
NC
8
NC
7
NC
6
VCC5nRESET
4NC3
MODE12NC
1
IC481
MFI341S2162-X
ZEROL
1
/MS
2
MC
3
MD
4
SCK
5
DATA
6
BCK
7
LRCK
8
NC
9
NC
10
VCC
11
AGND
12
VCOM
13
OUTR
14
OUTL
15
ZEROR
16
IC601
PCM1780-X
A01A12A23GND
4
SDA
5
SCL
6WP7
VDD
8
R1EX24512ASAS-X
IC402
S
6
VCC
5
A
4
CD16M
3
GND
2
SCLK
1
74LVC1G3157GW-X
IC471
VIN
4
VOUT3GND
2
STBY
1
IC491
NJM2878F4-18-X
D601
5.1V
NQR0450-001XC430
T
C442
22/6.3
T
C443
22/6.3
T
C491
47/10
T
C604
47/10
T
C495
22/6.3
T
C601
47/10
560
C410
C418
0.15/16
C416
10
C417
330p
C415
0.0012
0.1
C414
0.1/16
C471
C605
100p
C401
560
0.1/16
C425
C606
100p
C426
20p
0.1
C409
560
C405
470
C406
C402
560
C408
27P
C407
27P
C403
560
C453
470
C452
470
C451
470
C456
NI
C404
560
0.1
C441
NI
C457
C419
560
560
C448
560
C447
560
C446
560
C445
560
C444
560
C449
560
C450
C455
15k
C454
15k
0.1/16
C424
0.1/16
C423
0.1
C422
C497
330p
NI
C496NIC498
NI
C429
NI
C428
NI
C427
C420
560
C421
0.1
0.1
C482
0.1
C481
C494 0.1/16
C492
10/6.3
C493
0.1
NIC411
C603
0.1
C602
0.012/16
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
QGG2011M1-18X
CN441
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
QGG2011M1-18X
CN442
2
1
QGG2504M5-02
CN444
USB UNIT
CN441
To ELECTRIC UNIT-2
CN442
To ELECTRIC UNIT-2
CN444
To ELECTRIC UNIT-2
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)7/
Page 24
LVB11141-A2
SW GND
LD
SW3
FOCUS-
LD
VR
MD
VT2
TRACKING+
Vc
VF2
VT1
GND
Vcc
TRACKING-
VF1
FOCUS+
GND
VT1
GND
VF1
FOCUS+
Vc
VF2
Vcc
TRACKING-
GND
FOCUS-
LD
VT2
VR
TRACKING+
MD
109876
5 4 3 2 1
HDU-120
0.1
1k
0.1
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PICKUP A'SSY
OPTIMA-750B1
FOCUSING COILTRACKING COIL
SPINDLE+
MD
PSW/REST
SW2
FEED+
SPINDLE-
TRACKING-
SW1
FOCUS-
VT1
Vcc
LVB11141-A1
MOTOR
MOTOR
MOTOR
LOAD
FEED
SPINDLE
LOADING-
LOADING+
GND
FEED-
TRACKING+
FOCUS+
GND
VREF(Vc)
VF1
VT2
VF2
SW GND
REST SW
SW2
TR-
LD
LD
SW1
SW2
SW3
VT2
VCC
LO-
VT1
VC
MD
VF2
REST
VF1
LO+
FO+
SP-
FO-
FE+
FE-
TR+
SP+
SW1
SW3
TR-
TR+
FO+
FO-
MD
VF1
VC
VT1
VT2
VCC
VF2
LO+
LO-
FE-
FE+
REST
SP-
SP+
MGND
FE+
FE-
LO+
SP-
SP+
LO-
REST
SL1
SL2
NSW0291-001X
SW2
NSW0291-001X
SW4
NSW0291-001X
SW3
13
NSW0291-001X
SW1
R1130
B1
0
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
QGF1044F2-26X
CN101
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
QGF0522F3-15W
CN102
CD PLAYER UNIT
CN502
To ELECTRIC UNIT-2
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)8/
Page 25
ELECTRIC UNIT
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
F1A
SPACER
SPACER
SPACER
SPACER
S1A
F
E
E
F
1
1
1
1
1
1
1
B
A
GEA10326-
D
C
D
C
B
A
A
C234
C521
R278
R268
B992
B370
R948
R936
C589
R907
R902
C952
C949
C939
L941
MARK
UL
PbF
B374
R163
R721
R755
R754
R707
R706
R520
R524
R523
R522
R521
C518
C517
C516
Q501
C515
C514
B305
B903
B304
B901
C513
C511
R513
D501
R512
C520
C501
R506
R946
C519
R507
R501
R518
C508
C506
C504
C502
R508
R514
R510
C505
R511
R509
R505
R503
R504
C503
R502
R519
C475
C478
CN502
R945
C586
C585
R594
R593
R591
C590
R592
C591
C476
CN444
R478
D478
D477
C477
R477
LF472
CN472
CN442
CN441
X521
C543
C541
C579
C576
C571
C572
C569
C550
C573
L521
R556
C559
R549
C558
R546
C562
R548
R543
C545
R541
R545
IC540
R547
R544
J321
R316
R317
R941
R942
C937
C948
R932
R943
C947
R933
C946
R944
C936
R931
C938
L931
R947
IC201
C236
B991
L162
C30
C785
C784
D785
L201
R798
R797
X201
R728
Q784
D783
R793
R792
Q783
R783
C342
C339
C343
C340
C277
C267
R276
D261
Q261
R274
C276
R273
C274
R195
C195
C271
R271
R272
C275
C273
R314
R313
C217
Q301
C238
R233
R232
R231
D231
Q231
R306
R307
C735
R743
R716
R735
R734
R185
C185
R198
R197
R187
R188
C207
C192
C191
C182
C181
R192
R191
R182
K172
K171
K162
C172
C162
C171
C161
C199
C168
C169
R766
R756
B501
B702
C213
C203
C212
C202
C201
C211
R213
R203
R212
R202
R211
R201
C216
C206
C218
C214
C204
C205
C208
C209
C210
C224
R206
C226
C227
C215
C189
C170
C178
R925
IC161
CN701
L902
C221
C318
C311
N
C312
N
C302
N
C301
N
R791
R790
IC921
C780
R744
R742
PP4
D781
D784
D782
Q782
R972
R971
Q971
Q970
R973
R974
D970
D971
C982
R905
C916
C331
C333
C332
C334
R781
C4
C27
C25
L6
C179
R181
R175
C707
C734
R263
C266
R264
R266
C786
J1
R374
R704
PP3
R752
R748
L4
C98
C263
C265
R262
C264
R261
C223
R305
C316
C35
C34
R17
R16
C15
C222
B701
R733
R732
C922
R934
PP2
R277
B306
R310
C917
C927
IC902
C926
C733
R768
C731
R770
D721
D722
L703
R769
Q701
Q702
C262
C261
Q332
Q322
R267
R786
R161
R171
R758
C741
C739
C102
CN90
R93
R92
C93
C96
R94
C103
R96
C94
R95
R97
C101
C92
C100
R101
R98
IC901
C315
R309
R785
D331
D321
C314
C313
C304
C303
R311
R312
R302
R301
IC301
X701
X702
X11
R975
R763
R8
R976
R726
R722
R727
R977
R901
R806
R801
R903
R7
R365
R6
R4
R764
R352
R341
R5
R304
R351
R723
R724
CN702
R353
R711
R343
R1
R2
R14
R324
R746
R773
R924
R332
R331
R321
R981
R333
R323
R747
R729
R760
R757
R15
R713
R767
R719
R382
R731
R881
R386
R366
R362
R361
R765
R882
R3
R904
R923
R922
R771
R851
R772
R703
R782
R749
R745
R354
R344
R334
Q881
R921
Q781
L701
L7
L702
L901
L1
L2
L9
L5
L8
R165
J801
IC701
IC1
D714
PP1
D2
D1
D851
D901
D982
D852
D981
CN901
C365
C385
C366
C386
C851
C914
C913
C908
C910
C905
C909
C881
C317
C903
C902
C306
C387
C904
C924
C382
C919
C362
C26
C361
C381
C367
C369
C368
C907
C901
C723
C740
C720
C852
C918
C715
C31
C8
C371
C370
C372
C716
C28
C10
C703
C29
C704
C714
C310
C966
C967
C964
C920
C963
C9
C3
C1
C981
C2
C19
C925
C16
C718
C18
C727
C717
C17
C24
C782
C921
C783
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)9/
Page 26
P1A
URX
OFFSET
T1A
1
GEB10326A
RxM
CLIPDET
DCERR
1
UTX
TRST
UTX
URX
TRST
1
1
1
1
1
1
1
1
1
1
TM
MUTE
ARF
TxM
JOIN
TUSCL
TUSDA
VOLDA
CUT
VOLCK
R939
R949
C233
B203
B202
C745
B106
C106
D3
D201
B201
B924
C235
C537
C928
C538
C237
B312
B311
B371
C951
C950
C952
IC932
C949
C939
D941
K941
L941
K931
B934
B933
B310
B309
B308
B905
C744
C719
R577
R576
R575
R574
R573
R572
R571
C512
C515
B305
B903
B304
B303
B301
B
9
0
1
C513
R526
C511
D502
C507
R515
R517
C510
C509
B307
R516
IC501
C992
R601
R476
R570
R569
R568
C586
C583
C585
R585
C587
R587
C590
C582
C588
R586
R588
C581
C592
C591
R479
C493
CN444
CN472
CN442
K581
C584
R584
R583
CN441
R566
R475
X521
VREF
SMCK
MONON
SMON1
SMON0
OSCIN
DQSY
PCMK
IC541
FLAG
TX
EXT3
EXT4
EXT1
EXT2
EXT0
C543
C541
C579
C576
C555
C571
IC581
C549
C546
C551
C563
R555
C550
C578
C553
C554
C559
R564
C560
R561
C566
R551
C558
R553
C548
R552
C570
R563
R550
Q540
C577
C574
R540
R554
C545
C542
R565
C561
C556
C565
C547
R542
C568
C552
R558
C544
C539
R557
R562
C557
C575
C540
C564
C567
R559
R560
J321
IC941
D931
C942
C944
R935
C941
F902
C943
C935
C932
C931
IC931
C934
C945
C933
L931
C95
D717
D715
D710
C32
C993
C991
R216
R215
R799
C743
R796
C742
R794
L161
D712
C737
R265
R275
C276
C271
C273
C738
C736
C217
C239
C207
R172
R162
C172
C162
C171
C161
C199
C169
C216
C206
C214
C204
C205
C209
C220
C210
R205
C225
C224
R204
R214
C215
C189
C170
C178
C163
C173
CN701
C221
C338
C337
C336
C311
C312
C302
C301
C335
C7
R9
L10
R751
PP4
R906
C912
R810
C6
C27
C14
C13
L6
D708
C706
C730
C90
C91
C105
C266
J1
R373
D719
C709
PP3
D707
L4
C263
B932
C316
C712
C711
C713
R710
R709
R708
R372
R371
C922
C725
C724
C953
PP2
R730
R705
VDD
B306
RESET
VSS
FLMDO
TOOL0
DEBUGCLK
MIC+
MIC-
C917
C733
C732
IC271
C262
C261
R738
IC90
C97
C99
R90
C104
CN90
R100
C96
R104
R99
C103
R103
R91
R102
IC901
D702
C705
C305
C308
C307
IC301
X702
X11
R762
R759
R805
R804
R812
R809
R807
R761
R740
R342
R739
R725
D718
R717
CN702
R720
R814
R803
R322
R808
R714
R715
R811
R712
R701
R381
R385
R737
R718
R702
L901
L3
L5
J801
IC361
IC801
IC771
D713
PP1
D711
D703
D706
D709
D705
D704
D901
CN901
C365
C385
C366
C386
C851
C914
C913
C908
C910
C905
C909
C881
C317
C903
C902
C306
C387
C904
C924
C382
C919
C362
C26
C361
C381
C367
C369
C368
C907
C901
C723
C325
C726
C319
C990
C701
C702
C729
C771
C321
C968
C965
C324
C5
C911
C962
C961
C341
C802
C22
C23
C721
C12
C11
C906
C915
C388
C801
C722
C320
C322
C323
ELECTRIC UNIT
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)10/
Page 27
SWITCH UNIT-1
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
F3A
S3A
A1GEA10329-
D621
D620
IC681
EN601
CN603
S677
S676
S675
S674
S673
S672
S691
D604
D602
D605
S671
S670
S669
S668
S667
S666
S665
S664
S663
S662
S661
J601
D601
D603
C614
TH601
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)11/
Page 28
P3A
GEB10329A1
T3A
1
1
C608
C607
C606
C605
R687
R642
CN601
R689
C620
C623
R648
R649
R644
R685
C672
R682
R686
R681
D682
R683
C681
C682
IC681
B697
R699
R701
R702
R703
EN601
C609
B613
B615
B610
L604
R684
R698
B641
C662
RA663
R694
CN603
L687
L690
L677
C694
D693
R631
R635
R633
R634
R632
R615
R613
R614
T2-4
T2-3
T2-1
T2-2
GND
VDD
PTTX
E8-BUSY
CNVSS
PTCK
RST
PTRX
R602
R601
R643
R604
D618
C603
Q601
C601
C602
CN602
R605
J601
C640
C668
R603
R607
R608
R609
R610
R611
R612
IC601
IC661
X661
RA662
R641
R670
R625
R629
R651
R662
R637
R671
R667
R620
R619
R661
R618
R656
R665
R626
R690
R628
R674
R657
R672
R680
R627
R660
R659
R663
R688
R678
C611
C610
R675
R666
R658
R655
R654
R622
R623
R652
R639
R645
R669
R638
R606
R621
R653
R664
R650
R695
R696
R624
R697
R630
R646
R647
R693
R691
R668
R692
Q603
Q602
LF691
L661
L603
IC602
D630
D615
D640
D641
R617
D613
D611
D614
D612
D651
C604
C667
C665
R616
C699
C644
C642
C671
EPM
CE
C664
C627
B642
B643
C650
C663
B606
C643
C621
C622
MARK
UL
PbF
C626
R679
C677
C687
C641
C669
C661
SWITCH UNIT-1
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)12/
Page 29
SWITCH UNIT-2
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
F3A
S3A
GEA10329A2
D610
D609
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)13/
Page 30
P3A
T3A
GEB10329A2
MARK
UL
PbF
SWITCH UNIT-2
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)14/
Page 31
USB UNIT
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
1P3A
S3A
B
A
5:TRST
4:TDO
2:TMS
3:TCK1:TDI
A
GEA10288-
4
5
6:TX
7:RX
6 7
GND
A
B
2
1
3
C454
C455
C456
C457
R457
R456
R455
K448
K447
K446
K445
K444
K443
K442
RST
C498
C497
C496
R454
R453
R452
R451
C426
R450
R449
R448
R447
R446
R445
PbF
R423
R444
L407
C605
C604
R432
R431
R430
C471
C401
C402
C403
C404
R429
R436
Q401
R434
L491
C495
C494
C492
C493
C491
IC491
C410
R415
R420
R419
R418
L406
L405
L404
C421
C420
C419
L403
C416
C417
C415
C414
R407
R406
R402
L402
L401
R401
C409
C405
C406
R404
C408
C407
R405
X401
R443
R442
R441
C442
C441
K441
C443
IC441
C424
C423
C422
IC401
MARK
UL
R521
R607
BM2
R606
R469
R468
R610
R604
R605
R422
K453
L601
K454
IC601
IC471
K452
C601
C430
C429
C603
C602
CN444
C606
K451
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)15/
Page 32
4P3A
T3A
CN444
GEB10288A
R458
K450
K449
C453
C452
C451
R435
R609
CN442
CN441
C425
IC402
R428
R481
C482
C481
R427
R426
R425
R408
C411
R409
R417
R416
R414
R413
R412
R411
R410
C418
R403
C448
C447
C446
C445
C444
C449
C450
IC442
R601
R471
R603
R608
R470
R465
R463
R462
R464
IC481
R421
R602
D601
LF410
C428
C427
R459
CN444
LF409
USB UNIT
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)16/
Page 33
CN101
A1
SW1
B1
PbF
SW2
SW3
WHT
LO+
YEL
LO-
REST
ORG
ORG
MGND
SL1
WHT
FE-
SP-
SP+
RED
BLK
YEL
FE+
CN102
R1
LVA11141-
P2A
MARK
UL
SW1
SW3
SW2
C
N
1
0
2
B1
R1
CN101
CD PLAYER UNIT-1
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)17/
Page 34
PbF
P2A
LVA11141-A2
SW4
SW4
CD PLAYER UNIT-2
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
created date:2012-01-17No.MA520
18
(No.MA520<Rev.001>)18/
Page 35
PARTS LIST
22
CD RECEIVER
KW-R900BTJ KW-R900BTU
(No.MA520<Rev.001>)1/
Page 36
■ PRECAUTIONS ON SCHEMATIC DIAGRAMS
z Due to the improvement in performance, some part numbers shown in the circuit diagrams
may not agree with those indicated in the Parts List.
z The parts numbers, values and rated voltage etc. in the Schematic Diagrams are for
reference only.
z Since the circuit diagrams are standard ones, the circuits and circuit constants may be
subject to change for improvement without any notice.
■ PRECAUTIONS ON PARTS LIST
z
The parts identified by the symbol are critical for safety. Whenever replacing these parts, be sure to
use specified ones to secure the safety.
z
The parts not indicated in this Parts List and those which are filled with lines --- in the Parts No.
columns will not be supplied.
z
P.W. BOARD Ass'y will not be supplied, but those which are filled with the Parts No. in the Parts No.
columns will be supplied.
z
When ordering chips, screws etc., place bulk orders (unit of tens) whenever possible to improve
shipping efficiency.
z
There are cases where the actual implemented parts in the sets and the service parts are different.
When ordering parts, make sure to refer to the Parts List.
■
PRECAUTIONS ON SERVICE
Certain parts of the power circuits and the GNDs differ according to the models. Care must be
taken for the following points as the differences are indicated separately in the LIVE GND () and
the ISOLATED (NEUTRAL) GND ().
1.Do not touch the LIVE GND, or do not touch the LIVE GND and the ISOLATED (NEUTRAL)
GND at the same time. It may cause an electric shock.
Before pulling out the chassis or other parts, make sure to pull out the power cord from the
wall outlet first.
2.Do not short circuit between the LIVE GND and ISOLATED (NEUTRAL) GND, or never
measure the LIVE GND and ISOLATED (NEUTRAL) GND at the same time using measuring
instruments (oscilloscope, etc.). It may blow fuses or damage other parts.
■ DEVIATION TOLERANCE RANGE
DEVIATION TOLERANCE RANGE
F G J K M N R H Z P
± 1% ± 2% ± 5% ±10% ±20% ±30%
+30%
-10%
+50%
-10%
+80%
-20%
+100%
-0%
22
(No.MA520<Rev.001>)2/
Page 37
PA1
P
N
N
N
N
M
M
LCD1
L
L
K
J
H
H
G
FC1
F1
F
F
F
E
E
E
E
E
E
E
E
D
D
C
C
C
B
B
B
A
A
A
A
A
A
A
239
239
237
236
235
234
229
228
228
227
219
218
217
216
215
214
213
212
211
210
209
208
207
206
205
204
203
202
201
732
703
J
b
b
722
702(2/2)
702(1/2)
721
730
724
723
726
731
725
733
701
J
J
c
c
d
d
a
a
Parts with the exploded numbers lager than 700 are not supplied.
Block No. M1MM
EXPLODED VIEW (UNIT)
created date:2012-01-17No.MA520
22
(No.MA520<Rev.001>)3/
Page 38
MODELMARKMODELMARK
22
KW-R900BTJAKW-R900BTUB
Safe Symbol No. Parts No.Parts NameDescriptionQTYLocal
EXPLODED VIEW (UNIT) <M1MM>
!F1QMFZ064-100-J1FUSE10A 1
FC1WJT0296-001A-EE-CARD WIRE 1
LCD1QLD0705-001LCD MODULE 1
PA1GE34823-011AFRONT PANEL ASSY 1
AQYSDSF2006ZATAP SCREWM2 x 6mm 13
BQYSDST2604ZATAP SCREWM2.6 x 4mm 3
CGE40377-002ASCREW 3
DQYSDST2606ZATAP SCREWM2.6 x 6mm 2
EQYSDST2606ZATAP SCREWM2.6 x 6mm 8
FGE40377-001ASCREW 3
GQYSDSF2608ZATAP SCREWM2.6 x 8mm 1
HGE40377-002ASCREW 2
JGE40377-003ASPECIAL SCREW 1
KQYSDST2608ZATAP SCREWM2.6 x 8mm 1
LQYSDST2004ZATAP SCREWM2 x 4mm 2
MQYSSSP5008ZASCREWM5 x 8mm 4 A
NQYSDST2604ZATAP SCREWM2.6 x 4mm 4 A
PQYSDST2606ZATAP SCREWM2.6 x 6mm 1 A
201GE20304-009AFINDER 1 A
201GE20304-010AFINDER 1 B