Kenwood KDC-W5031Y User manual

© 2005-2 PRINTED IN JAPAN
B53-0247-00 (N)1233
CD RECEIVER
SERVICE MANUAL
This product uses Lead Free solder.
KDC-MP5029
KDC-W5031/W5031Y
KDC-W531Y
* Depends on the model. Refer to the parts list.
PANEL ASSY
KDC-MP5029 (A64-3484-12) PANEL ASSY
KDC-W5031/Y (A64-3485-02)
SPARE TDF PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-MP5029 Y33-2150-64 TDF-MP5029
KDC-W5031/Y Y33-2150-65 TDF-W5031
KDC-W531Y Y33-2150-66 TDF-W531Y
PANEL ASSY
KDC-W531Y (A64-3488-02)
MOUNTING HARDWARE ASSY
(J22-0011-03)
LEVER
(D10-4589-04) x2 SCREW SET
(N99-1763-05)
* DC CORD
(E30-6415-15)
* REMOTE CONTROLLER ASSY (RC-517)
(A70-2069-05)
BATTERY
(Not supplied)
* SCREW SET
(N99-1757-05)
ESCUTCHEON
(B07-3122-01)
PLASTIC CABINET ASSY
(A02-2743-03)
MOUNTING HARDWARE (R)
(J22-0259-04)
MOUNTING HARDWARE (L)
(J22-0258-04)
* ANTENNA ADAPTOR
(T90-0523-05)
* DC CORD
(E30-6413-05)
FFFF
MENUMENU
VOLVOL
AUDAUD
SETSETUPUP
SCRL
AME
AUTO
SCAN RDM REP M.RDMF.SEL
DISPDISP
KDC- MP5029
ATT
FFFF
MENUMENU
VOLVOL
AUDAUD
SETSETUPUP
SCRL
AME
TI
SCAN RDM REP M.RDMF.SEL
DISPDISP
KDC- W5031
ATT
PTY
FFFF
MENUMENU
VOLVOL
AUDAUD
SETSETUPUP
SCRL
AME
AUTO
SCAN RDM REP F.SEL
DISPDISP
KDC- W531
ATT

2
KDC-MP5029/W5031
/W5031Y/W531Y
BLOCK DIAGRAM
SERVO
A8V
BU5V
AUDIO OUT
AM+B
MPX OUT
MPX IN
AUDIO OUT
BU5V
A8V
BACK
SP OUT
BACK UP
ACC
OEM REMOTE
TEL MUTE
P-ANT
P-CON
PAN5
SERVO
P-ANT
AM+B
A8V
BU5V
P-CON
AM+B
AUDIO+B
VCC
ILLUMI
BU5V
ILLUMI
PAN5V
KEY
:
CHANGER
CD/MD
FM (E)
FM (J/K)
AM (J/K)
AM (E)
:
:
:
:
:1800mV
1372mV
600mV
855mV
3600mV
3600mV
CD5V
800mV
1200mV
BU5V
MECHA
CD or MD
CHANGER
J2
E-VOL
IC10
&
AM AGC
Q501
FM AGC
L506
ANT J4
TUNER
IC11
E2PROM
u-COM
IC1IC7 RST IC
IC8
PRE MUTE
Q351,352
IC4
POWER IC
MUTE LOGIC
IC6 J1
PAN5V
Q151
Q72,73
SERVO
VFD REG
IC15
POWER SUPPLY IC
IC3
ED1
VFD
with
VFD DRIVER
IC1 REMOTE IC2
VOL
S1 KEY MATRIX
PANEL DET
S151
.......
.......
J6 PRE OUT
SURGE DET
BU DET
ACC DET
DECODER
RDS
Q152
ILLUMI SW
KEY
EJECT ILLUMI EJECT
Q53
Q52
Q51
OEM
Q156S152
ELECTRIC UNIT (X34-)
SWITCH UNIT (X16-)
S7V
A8V
BU5V
D5V
A3.3V
SW3.3V
BU3.3V
BU2.5V
CD PLAYER UNIT (X32-5500-00)
IC1
MECHANISM
CONTROL
Q8
APC
Q9,10
SW
IC4
4ch BTL
DRIVER
M
M
DM1
DM2
SPINDLE
MOTOR
LOADING
MOTOR
& SLED
S1
S2
IC9
DAC 3.3V
AVR
Q3,5,6
S3 LEVEL SHIFT
Q7
Q1,4
LEVEL
SHIFT
MICROPROCESSOR
AVR
BU 3.3V
IC6 DAC 3.3V
AVR
IC7
SW 3.3V
AVR
IC5
LEVEL
SHIFT
IC3
MP3/WMA
DECODER
IC2
PROCESSOR
RF AMP/SERVO
CD SIGNAL
BUFFER
IC8
FO COIL
TR COIL
(OPTICAL PICKUP)
AC
F
B
E
DPU1
LD
PD
CN2
CN1
15
14
13
12
DGND
DATA
CLK
MUTER
MUTEL
MSTOP
MRST
10
LOS
20
19
18
17
16
1
A8V
L
AGND
DOUT
R
MOTOR
LO/EJ 5
4
3
2
9
8
7
6
SGND
S7V
12EJE
LOE/LIM
X2
16.00MHz
16.898MHz
X1
OPEN
D5
DGND
D5
24
23
22
21
BU5
3
3
8
1
2
4
4
4
4
VREF
SLD
TRK
FCS
SPD
516
PON

3
KDC-MP5029/W5031
/W5031Y/W531Y
COMPONENTS DESCRIPTION
●ELECTRIC UNIT (X34-339x-xx)
Ref. No. Application / Function Operation / Condition
IC1 SYSTEM µ-COM System control.
IC3 POWER SUPPLY DC5V x 1, 7.8V x 1, 8.0V x 1, 10.2V, P-CON, P-ANT output.
IC4 POWER IC Signal amplifier.
IC6 MUTE LOGIC Mute action control.
IC7 RDS DECODER RDS decode.
IC8 RESET IC “L” when detection voltage is below 3.6V.
IC9 MECHA+B Output voltage 5V for MP3/WMA mecha.
IC10 E-VOL & TUNER E-vol, tuner, stereo decode.
IC11 E2PROM Save & load for tuner adjustment data.
IC15 LED & VFD+B Output voltage 11.25V for LED and VFD.
Q51 SERGE DET “ON” when the base goes “H”.
Q52 BU DET “ON” when the base goes “H” during BU is applied.
Q53 ACC DET “ON” when the base goes “H” during ACC is applied.
Q54 BU5V SW “ON” when the base goes “L”.
Q71 SERVO+B CONTROL SW “ON” when the base goes “H”.
Q72 SERVO+B AVR Output voltage is 7.5V.
Q73 SERVO+B AVR Output voltage is 7.5V.
Q74 IC3 CONTROL SW “ON” when the base goes “H”.Output voltage is 10.2V.
Q91 IC9 CONTROL SW “ON” when the base goes “H”.
Q151 PANEL 5V SW “ON” when the base goes “L”.
Q152 FL+B SW “ON” when the base goes “L”.
Q153 FL+B SW “ON” when the base goes “H”.
Q156 EJECT ILLUMI SW “ON” when the base goes “H”.
Q252 IC4 STBY SW “ON” when the base goes “L”.
Q330 Q351/Q352 MUTE DRIVER “ON” when the base goes “L”.
Q351 Lch PREOUT MUTE SW Audio preout is muted when the base goes “H”.
Q352 Rch PREOUT MUTE SW Audio preout is muted when the base goes “H”.
Q501 AM RF AMPLIFIER Adjusts for Gain.
●CD PLAYER UNIT (X32-5500-00)
Ref. No. Application / Function Operation / Condition
Focusing, tracking, sled and spindle servo processing.
IC1 MECHANISM CONTROL Automatic adjustment (Focusing, tracking, gain, offset and balance) operations.
MICROPROCESSOR Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data
interpolation) operations, and microcomputer function.
Generation of RF signal based on the signals from the APC circuit and pickup, and
IC2 RF AMP/SERVO CD generation of servo error (Focusing error and tracking error) signals.
SIGNAL PROCESSOR Detection of dropout, anti-shock, track crossing and off-track conditions, included
gain control function during CD-RW.

4
KDC-MP5029/W5031
/W5031Y/W531Y
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition
IC3 MP3/WMA DECODER
IC4 4ch BTL DRIVER Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and
eject operation.
IC5 SW 3.3V AVR
IC6 BU 3.3V AVR 3.3V power supply for back-up.
IC7 BU 2.5V AVR 2.5V power supply for back-up.
IC8 SELECTOR (SERIAL DATA) Serial audio data switch.
IC9 DAC 3.3V AVR 3.3V power supply for IC2.
Q1 LEVEL SHIFT 3.3V to 5.0V.
Q3~7 LEVEL SHIFT 3.3V to 5.0V.
Q8 AUTOMATIC POWER CONTROL LD driver.
Q9,10 SWITCH Switch for anticipation sub-beam delay.
●SWITCH UNIT (X16-291x-xx)
Ref. No. Application / Function Operation / Condition
IC1 VFD DRIVER
IC2 REMOTE CONTROL
Q4 SW 5V The power supply of IC2 turns on when Q4’s base goes “L”.
Q10 RED LED SW RED LED turns on when Q10’s base goes “H”.
Q11 GREEN LED SW GREEN LED turns on when Q11’s base goes “H”.
●DAUGHTER UNIT (X89-2690-10)
Ref. No. Application / Function Operation / Condition
Q221, 222 2-PREOUT MUTE “ON” when the base goes “H”.
Q225 2-PREOUT MUTE “ON” when the base goes “H”.

5
KDC-MP5029/W5031
/W5031Y/W531Y
MICROCOMPUTER’STERMINAL DESCRIPTION
●SYSTEM µ-COM : IC1 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O Application Processing Operation
1DCERR I DC offset detection input
2 LINE MUTE I Phone detection TEL MUTE : Below 1V
3ROTARY CW I Rotary encoder input
4AVSS -
5TUN TYPE1 I E-VOL setting switch Refer to “TUN TYPE” on the TRUTHTABLE
6TUN TYPE2 I E-VOL setting switch Refer to “TUN TYPE” on the TRUTHTABLE
7AVREF1 -
8VFD DATAF I Data input from FVD driver
9 VFD DATAS O Data output to FVD driver
10 VFD CLK O Clock output to FVD driver
11 VFD RST O Reset output to FVD driver Display OFF, Key reset, Panel opened : L
Display ON, Key scan : H
12 VFD CE O Chip enable output toVFD driver
13 ROTARY CCW I Rotary encoder input
14 FLIP DET I Panel detection Panel released : H, Panel ON : L
15 PWIC BEEP O Beep output
16 LX DATA S I Data from slave unit
17 LX DATA M O Data to slave unit
18 LX CLK I/O LX-BUS clock
19 RDS AFSL O Tuner RDS mute output Refer to “RDS AFSL” on the TRUTHTABLE
20 TUN ADJ I For adjusting IC10 Adjustment=H, PS1-1, 2=L, PS1-3=Hi-Z, PS2-1, 2=Hi-Z
TUN DATA, CLK=Hi-Z
21 TUN SD I Tuner search stop input H : Station exists, L : Station does not exist
22 LX RST O Hard reset to slave unit H : Reset, L : Normal condition
23 LX CON O Start-up request to slave unit H : Slave unit ON, L : Slave unit OFF
24 LX REQ M O Communication request to slave unit
25 AUD SDA I/O Tuner + volume I2C data input and output
26 AUD SCL I/O Tuner + volume I2C clock input and output
27 PWIC STBY O Power IC standby output Power IC ON : H, Power IC OFF : L
28 VOL MUTE O E-VOL mute output L : Mute OFF, Hi-Z :Mute ON
29 PWIC MUTE O Power IC mute output Power OFF : L, Standby :L, Tel mute : L
30 RDS AFSM -
31 RESET2 O Mute for reset Output L
32 RDS DATA I RDS decoder data input
33 VSS1 -
34 RDS QUAL I RDS decoder QUAL input
35 ACC DET I ACC detection ACC exists : L, ACC does not exist : H
36 BU DET I Momentary power-down detection BU exists : L, BU does not exist (Momentary power-down) :H
37 PON I/O SW5V/SW14V control Power ON : L, Power OFF : Hi-Z
38,39 PS2-2, PS2-1 O Power supply control output Refer to “POWER IC CONTROL” on theTRUTHTABLE

6
KDC-MP5029/W5031
/W5031Y/W531Y
Pin No. Pin Name I/O Application Processing Operation
40~42 PS1-1~PS1-3 O Power supply control output Refer to “POWER IC CONTROL” on theTRUTHTABLE
43 KEY CDEJ I Eject key L : Eject
44 PON CD I/O Power supply control for MP3/WMA ON : L, OFF : Hi-Z
45 CD MUTE I CD mute request L : Mute request
46 CD MSTOP O CD mecha µ-com stop H : mecha µ-com operates, L :mecha µ-com is stopped
47 CD LOE LIM SW ICD detection (chucking switch) H : Loading is finished, L :Disc does not exist
48 CD LOEJ I/O CD motor control Refer to “CD MECHA CONTROL OPERATION” on the
TRUTH TABLE
49 CD MOTOR O CD motor control Refer to “CD MECHA CONTROL OPERATION” on the
TRUTH TABLE
50 CD DISC8 SW -
51 CD MRST O CD mecha µ-com reset H : Normal condition, L : Reset
52 CD SCL I/O CD mecha I2C clock output
53 CD DISC12 SW I 12cm CD detection
54 CD LOS SW I CD loading detection
55 CD SDA I/O CD mecha I2C data input and output
56 OEM DISP CE I/O External display chip enable External display
57 OEM DISP CLK I/O External display clock External display
58 OEM DISP DATA I/O External display chip data External display
LED ON : H, LED OFF : L
59 EJECT ILLUMI O Eject illumination control LED ON when FLIP-DOWN DET is H and PANEL DET is L.
LED blinks when FLIP-DOWN DET is H and PANEL DET is L.
60 RESET I
61 PANEL DET I Panel detection Panel OFF : L, Panel ON : H
62 PON FL O VFD power supply ON VFD ON : H, VFD OFF :L
Flip-down detection H :L, Flip-down detection L : H
63 KEY REQ I Communication request from VFD driver L : Key input
64 RDS CLK I RDS decoder clock input
65 REMOTE I Remote control input
66 LX REQ S I Communication request from slave unit
67 VSS0 -
68 VDD1 -
69,70 X2, X1 -
71 TEST -
72,73 XT2, XT1 -
74 VDD0 -
75 AVDD -
76~78 TYPE 3~TYPE 1 IDestination switch
79 RDS NOISE I Tuner quality (Noise) input
80 TUN SMETER I Tuner S-meter input
MICROCOMPUTER’STERMINAL DESCRIPTION

7
KDC-MP5029/W5031
/W5031Y/W531Y
●TRUTHTABLE
TUNTYPE
TYPE 1 TYPE 2
General models commercially-designated as pure KENWOOD brand (Initial value) LL
Initial value setting
General models commercially-designated as pure KENWOOD brand (CRSC is changed) HL
Multi-Path Band-Path Gain = 12dB, Multi-Path Charge Current = 0.4µA, De-Emphasis = 75µS
RDS AFSL (AF search)
High Normal condition communication (IC10 side : High)
(Quality time constant long / Stereo Decoder PLL : Not hold)
Low AF search (IC10 side : MID)
(Quality time constant short / Stereo Decoder PLL :Hold)
POWER SUPPLY IC (IC3) CONTROL
SW1 (Pin No. 10)
PS1-1 PS1-2 PS1-3 AUDIO P-CON P-ANT
LLLOFFOFF OFF
HLLONOFF OFF
HHLONONOFF
HHHONONON
SW2 (Pin No. 11)
PS2-1 PS2-2 ILLUMI FM+B AM+B
LLOFF OFF OFF
HLONON OFF
HHONON ON
CD MECHA CONTROL OPERATION
CD LOEJ CD MOTOR CD MECHA OPERATION
LH Load
HH Eject
Hi-Z L Stop
Hi-Z H Brake
MICROCOMPUTER’STERMINAL DESCRIPTION

8
KDC-MP5029/W5031
/W5031Y/W531Y
●CD MECHANISM µ-COM : IC1 on X32- (CD PLAYER UNIT)
Pin No. Pin Name I/O Application Processing Operation
1VREFL - Reference power supply input terminal for ADC (L). GND
2AVSS - GND terminal for ADC. GND
3AVCC - Power supply terminal for ADC. Back-up 3.3V
4NC -
5 20RST O Reset control (Decoder). L : Reset, H : Normal condition
620ACK I Acknowledge signal input (Decoder).
7 20STBY O Standby control (Decoder). H : Standby, L : Normal condition
8,9 NC -
10 20INT I Interrupt signal input (Decoder).
11 FOGUP I Focus gain-up interrupt. H : Focus gain-up, L : Normal condition
12 LZM I 0 bit mute detection (Lch). L : MUTE OFF, H : MUTE ON
13 RZM I 0 bit mute detection (Rch). L : MUTE OFF, H : MUTE ON
14,15 NC -
16 20CS O Chip select signal output (Decoder).
17 20LP O Latch pulse signal output (Decoder).
18 20TXD0 I/O Data output for serial data (Decoder). Input condition is kept except in output condition.
19 20RXD0 I Data input for serial data (Decoder).
20 20SCLK0 O Clock output for serial data (Decoder).
21 DSPTXD1 O Data output for serial data (DSP).
22 DSPRXD1 I Data input for serial data (DSP).
23 DSPSCLK1 O Clock output for serial data (DSP).
24 AM0 - ROM mode selection terminal. H : Normal condition, L : External ROM mode
25 DVCC - Back-up 3.3V.
26 X2 O Resonator terminal. 16MHz
27 DVSS - GND.
28 X1 I Resonator terminal. 16MHz
29 AM1 I “H” condition is fixed. Back-up 3.3V
30 RESET I Reset detection. L : Reset, H : Normal condition
31~34 NC -
35 DSPSTB O Data strobe signal output (DSP).
36 DSPA0 O Command/Parameter identification signal output (DSP). H : Parameter data output,
L : Command data output
37 DSPRST O Reset control (DSP).
38 DSPINT I Interrupt signal input (DSP). H : Interrupt
39 NC -
40 SEARCH O Search condition output. H : Search, L : Normal condition
41 LOE/LIM SW I Loading-end detection/Pick-up inner circumference H : Inner circumference
detection
42~49 NC -
MICROCOMPUTER’STERMINAL DESCRIPTION

9
KDC-MP5029/W5031
/W5031Y/W531Y
Pin No. Pin Name I/O Application Processing Operation
50 FLAGIN I C2Err impossibility detection. L :Correction is possible.
H : Correction is impossible.
51~61 NC -
62 DVSS - GND.
63 NMI I Non-maskable interrupt request.
64 DVCC - Power supply terminal.
65~77 NC -
78 NC/BOOT I Mask : Not connected.Flash : For writing (Active “L”). L :Write, H : Nomal condition
79,80 NC -
81 OND3.3 O Digital 3.3V power-on control terminal. H : POWER ON
82 MUTEL O Lch audio mute control.
83 MUTER O Rch audio mute control.
84 SDA I/O I2C data (Main µ-com).
85 SCL I/O I2C clock (Main µ-com).
86 MSTOP I Stand-by comeback interrupt. L : Stop, H : Stop is released.
87 NC -
88 DMUTE O Driver mute. L : MUTE ON, H : MUTE OFF
89 DVCC - Power supply terminal.
90 NC -
91 DVSS - GND.
92,93 NC - GND.
94 MSEL I Memory capacity switching terminal. H : Capacity size down, L : Capacity size up
95 NC - GND.
96 ASEL I Audio output polarity switch. H :Reverse output, L : Non-reverse output
97 CHSEL I Changer destination terminal. H : Changer, L :Other source
98 SEL0 I µ-com destination terminal 0.
99 SEL1 I µ-com destination terminal 1.
100 VREFH I Reference power supply input terminal for ADC (H). Back-up 3.3V
MICROCOMPUTER’STERMINAL DESCRIPTION

10
KDC-MP5029/W5031
/W5031Y/W531Y
TEST MODE
How to enter the test mode
While simultaneously press PRESET“1”key and PRESET“3”
key, press “RESET” button.
How to release the test mode
Press “RESET” button. (The release cannot be achieved in
the conditions of POWER OFF and ACC OFF.)
Initial conditions of the test mode
• The source is “STANDBY”.
• The displays all lit up.
• The volume is at –10dB (The display shows “30”.)
• LOUD is “OFF”.
• CRSC is “OFF”.
• SYSTEM Q is “NATURAL”.
• BEEP is sounded at all time with the key depressed for less
than 1 second.
Special displays when all indicator lights are lighted
When “PRESET” keys are pressed while all indicators for the
STANDBY sources are lighted, the following displays will ap-
pear.
PRESET •Version display (8 digits : month, date, hour, minute)
“1” key (Display) : x x x x x x x x
PRESET •Serial number display (8 digits)
“2” key (Display) : x x x x x x x x
PRESET •When pressed for less than 1 second : POWER ON
“3” key time display (STANDBY source time is not counted.)
(Display) :PON x x x x x MAX 60,000 (hours)
*The display is cleared by pressing the key for more
than 2 seconds.
PRESET • When pressed for less than 1 second : CD operation
“4” key time display
(Display) :PLY x x x x x MAX 60,000 (hours)
*The display is cleared by pressing the key for more
than 2 seconds.
PRESET •When pressed for less than 1 second : CD EJECT
“5” key number display
(Display) :EJC x x x x x MAX 60,000 (times)
*The display is cleared by pressing the key for more
than 2 seconds.
PRESET • When pressed for less than 1 second :Panel open/
“6” key close number display
(Display) :PNL x x x x x MAX 600,000 (times)
*The display is cleared by pressing the key for more
than 2 seconds.
“FM” • ROM CORRECTION version display
key (Display)
Effective : ROM _ Rxxx (x : number)
Not effective (When not able to read) : ROM _ R – – –
Not effective (When version is different) : ROM _ R✳✳✳
“AM” • IC10 adjustment status (Refer to “ADJUSTMENT” on
key the following page.)
(Display)
Adjustment complete : E2P _ OK _ _
Adjustment not completed : E2P _ ER _ _
Communication error : I2C _ ER _ _
*When other than “E2P _ OK _ _”, Pin No.30 will
become “H”.
“”•Mechanism error detection status
key•Communication error →Error No. 1 →Error No. 2 →
Error No. 3 →Communication error (Error No.1 is the
most recent error.)
(Display)
Communication OK :I2C _ OK _ _
Communication error : I2C _ NG _ _
Not detected : ERR _ n – – – (n : 1~3)
Detected : ERR _ n-✳✳ (✳✳ : error code)
*The display is cleared by pressing the key for more
than 2 seconds.

11
KDC-MP5029/W5031
/W5031Y/W531Y
SPECIAL MODE
●Security (KDC-MP5029/W5031/W5031Y only)
• How to enter the forced POWER ON mode
While “– – – –” is being displayed, while simultaneously
pressing “Q” key and “4” key, press “RESET” button, With
this, it is possible to turn the power on for 30 minutes only.
•How to register the security code on the “Car
Audio Passport” sheet after replacing E2PROM
(IC11)
1. Enter the test mode.(Refer to“How to enter the test mode”.)
2. In the test mode, press “MENU” key to enter the MENU
mode.
When “SECURITY” is displayed, press “ ” key (for less
than 1 second) to enter the security registration mode.
3. Input the security code, using “FM” / “AM” / “ ” / “ ”
keys.
“FM” key :number up / “AM” key :number down
“” key : cursor to right / “ ” key : cursor to left
4. After inputting the code, press “ ” key for 3 seconds or
more which causes “RE-ENTER” to be displayed.This is
for “confirming” the code.Use the method in above No.“3”
to re-enter the code.
5. Then, press “ ” key for 3 seconds or more, which will dis-
play “APPROVED”.This completes the security code regis-
tration.
6. Release the test mode. (Refer to “How to release the test
mode” .)
* All clear cannot be used to clear the security code.
●DC offset error detection confirmation mode
Confirmation mode :
While depressing PRESET “3” key and PRESET “6” key
simultaneously, press on the “RESET” button.
(Display) Detected :DC _ ERR _ _
Not detected : DC _ OK _ _ _
* By pressing “AUTO” or “TI” key while “DC _ ERR _ _” is
being displayed, detection status is cleared. This will result
in the display of “DC _ OK _ _ _”.
Release Method : Press “RESET” button.
●Mechanism memory clear confirmation mode
Confirmation mode :
While depressing “ATT” key and “Q” key simultaneously,
press “RESET” button.
(Display) : MEM _ CLR _
*2seconds after the confirmation mode boots up, Mecha-
nism memory clear as a result is displayed.
(Display) Clear status display normal completion
: CD _ O _ _ _
Clear status display abnormal completion
: CD _ X _ _ _
Release Method : Press “RESET” button.
●FM/AM channel space switching
(KDC-MP5029 only)
When in the conditions of ACC ON and POWER OFF, while
depressing PRESET “1” key and PRESET “5” key simulta-
neously, press “SRC” key.

12
KDC-MP5029/W5031
/W5031Y/W531Y
ADJUSTMENT
After replacing the following parts, adjust as follows.
REPLACED PARTS ADJUSTMENT ITEMS
Ref. No. Function / Parts name 1st AM MIX 2nd AM MIX FM antenna
IC10 E-VOL & TUNER YES YES YES
IC11 E2PROM YES YES YES
L507 VCO COIL YES YES YES
L508 1st AM MIX IFT YES - -
L509 2nd AM MIX IFT - YES -
L518 FM ANTENNA COIL - - YES
D504 VARIABLE YES YES YES
CAPACITANCE DIODE
D506 VARIABLE YES YES YES
CAPACITANCE DIODE
X501 CRYSTAL RESONATOR YES YES YES
●1st AM MIX / 2nd AM MIX ADJUSTMENT
ADJUSTMENT POINT : L508 (1st AM MIX) / L509 (2nd AM
MIX)
VOLTAGE VALUE CHECK POINT : S-METER check land (X34-)
Adjust so that S-METER voltage value becomes maximum.
• SG setting
DESTINATION FREQUENCY MODULATION ANTENNA INPUT
Europe 999kHz OFF 35dBµV (EMF)
Except Europe 1000kHz OFF 35dBµV (EMF)
●FM ANTENNA ADJUSTMENT
ADJUSTMENT POINT : L518
VOLTAGE VALUE CHECK POINT : S-METER check land (X34-)
Adjust so that S-METER voltage value becomes maximum.
• SG setting
DESTINATION FREQUENCY MODULATION ANTENNA INPUT
Europe 87.5MHz OFF 5dBµV (LOAD) or
11dBµV (EMF)
Except Europe 87.9MHz OFF 5dBµV (LOAD) or
11dBµV (EMF)

13
KDC-MP5029/W5031
/W5031Y/W531Y
EDCBA
1
2
3
4
5
6
7
C13
C14
C15
DISP
RESET
FM
AM
6542
1
SRC
68 24
231
Q
VOL
ATT
AUD
3
C16
C17
VCC
VO G
D25
D26
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
P1
S1 S2
S10
S27
ED1
IC2
SWITCH UNIT
X16-291x-xx (J76-0040-32)
CP12
CP13 C19
C20
C8
C10
C11
CP10
CP11
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R20
R51
R52
R53
R54
R55
R56 R57
R58
R59
R70
R15
R73
R74
R75
E
B
EB
EB
80
1
20
21
40
41
60 61
KI5
KS1
KS2 KI1
KI2
SW5V
KS4
ILL D GND
PAN5V
INH
ILL+B
CW
RST
CLK
DI
CE
FL+B
KI3
CNDET
CCW
GND
ESD
DO
REMO
KI4
KS3
115
214
D110
Q4
Q10
Q11 D104
D103
D105
D101
D108
D107
D106
D109
J1
IC1
SWITCH UNIT
X16-291x-xx (J76-0040-32)
PC BOARD (FOIL SIDEVIEW)
Refer to the schematic diagram for the
values of resistors and capacitors.
(COMPONENT SIDE VIEW)
X16-291x-xx
Ref. No. Address
IC2 2A
X16-291x-xx
Ref. No. Address
IC1 4D
Q4 4D
Q10 3D
Q11 3D

14
KDC-MP5029/W5031
/W5031Y/W531Y
FGHIJ
1
2
3
4
5
6
7
RST
SCL
SDA
B
TEST
W322
W310
R596
W353
C562
R600
C515
R601
L61
C409
1
15
14 2
15 1
5
C96 C97
C255
C256
C258
C505
C507
C508
C512
C547
C563
C600
CF51
CF52
CF53
CF54
W340
W300
L4
L505
L506
L507
L508
L509
L518
X1
C6
C3 C5
C4
C257
C303
13 11 12 8 4 3 2
9106 7 5 1 127
226
C331
C332
W306
R598
L501
L502
L503
L504
L520
W361
R338
R339
W3
7
R544
W308
R597
W801
W317
X2
X501
W351
W352
W377
W379
W381
W362
W357
W383
W375
W368/
W335
W373
W312
W367
W318
W302
W304
W305
W307
W309
W314
W311
R81
W382
W349
W321
W346
W319
W371
W251
W372
W426
R313
W370
W384
W328
W339
W365
W833
W836
D301
D302
D303
D304
D305
D306
J2
J5
J6
P1
D203
D259
D260
D166
J4
WH1
S152
WH2
IC4
IC15
ELECTRIC UNIT X34-339x-xx (J76-0075-12)
PC BOARD (COMPONENT SIDE VIEW)

15
KDC-MP5029/W5031
/W5031Y/W531Y
ONMLK
1
2
3
4
5
6
7
Refer to the schematic diagram for the values of
resistors and capacitors.
X34-339x-xx
Ref. No. Address
IC3 4M
IC4 2J
IC9 5M
IC15 6H
Q72 3M
Q73 3M
BU5V
C20
L2
C409
C51
C71
C72
EB
1
1
224
123
5
12
C73
C74
C75
C76
C77
C78
C79
C80
C91
C92
C93
C117
W398
R72
R73
C1 C2
916
EB
81
W403
L51
W425
R21
R58
W388
R59
W408
W376
W402
X3
W419
W423
W424
W418
W405
W406
W416
W385
W390
W379
W381
W387
W383
W393
W391
W413
W414
W409
W415
W417
W404
W421
W422
C119
L101
W395
W411
W410
W407
W412
W397
W396
W373
W394
W420/
W399
R81
W382
W386
W
371
W
372
313
W370
W384
L62
D57
D71
J1
D52
D54
Q72
Q73
D254
D73
CN2
S151
IC3
IC9

16
KDC-MP5029/W5031
/W5031Y/W531Y
PQRST
1
2
3
4
5
6
7
W100
C201
R57
R61
R62
R85
R94
R198
R365
R366
C410
R312
R412
R414
R416
R419
R420
R441
R453
R454
C69
C81
C95
C112
C113
C151
C407
C408
C411
C420
C565
R130
R52
R53
R56
R82
R92
R190
R191
R193
R194
R252
R254
R257
R367
R411
R413
R415
R417
R418
R440
R456
R471
W70
C55
C116
W58
R1
R2
R51
R54
R55
R60
W54
R75
R76 R77
R78
R84
R83
R86 R87
R88
R89 R90
R91 R93
R112
R113
C118
R178
R180
R181
SDA
SCL
ADJ
AFS
R182
R195
R196
R197
R251
R255
R256
R271
R272
R273
R351
R352
R353
R355
R356
R358
OEM-CLK
OEM-CE
OEM-DATA
R359
R360
R368
R369
R370
R371
R431 R432
R433
R437
R438
R439
R450
R451 R452
R457
R470
TH1
W252
W71
W52
W56
W59
W60
R114
W99
W63
W57
W66
W62
W65
W64
W73
R480
W53
W51
R253
R151
W72
W96
W97
W78
W91
W83 W82
R131
R132
R133
R134
R135
R136
R137
R138
R139
R140
R141
C52
R63
R363
C153
R
C422
W102
W103
L301
BE
BE BE
EB
BE BE
BE BE
14
85
916
81
CC
EE
BEE
CC
B
21 20
1
41
60
40
100
61
43
21
Q54
D72
D91
D75
D251
D252
D253
D255
D256
D257
D258
Q71
Q51
Q52
Q74
Q91
Q153
Q252
D53
D55
D76
D261
Q53
Q152
D74
D402
D403
D81
IC6
IC1
IC8
IC7
I
ELECTRIC UNIT X34-339x-xx (J76-0075-12)
PC BOARD (FOIL SIDE VIEW)

17
KDC-MP5029/W5031
/W5031Y/W531Y
YXWVU
1
2
3
4
5
6
7
Refer to the schematic diagram for the values of
resistors and capacitors.
X34-339x-xx
Ref. No. Address
IC1 6S
IC6 4S
IC7 4S
IC8 6S
IC10 5V
IC11 4U
Q51 3S
Q52 3S
Q53 3R
Q54 4R
Q71 3Q
31
15
RG L
C221
C222
W101
R229
R230
R222 R221
R226 R225
EB
EB
EB
CN91
CN90
Q222
Q225
Q221
X89-2690-10
(J76-0057-12)
DAUGHTER UNIT
Ref. No. Address
Q74 5R
Q91 5Q
Q151 7V
Q152 6T
Q153 6T
Q156 6V
Q252 3T
Q330 3U
Q351 3V
Q352 3W
Q501 4W
X89-2690-10
Ref. No. Address
Q221 3X
Q222 3X
Q225 3Y
C551
C579
C556
C585
R606
R185
C333
C334
C503
C506
C509
C510
C511
C513
C516
C517
C518
C519
C520
C521
C522
C527
C531
C543
C545
C548
C620
C553
C554
C559
C561
C568
C582
C583
C584
C580
C586
C587
C588
C589
C590
W820
C601
C604
C605
C606
R608
C623
R607
R97
4
R335
R336
R504
R506
R565
R605
W807
C301
C302
C502
C504
C514
C524
C525
C541
C542
C544
C549
C550
C564
C581
C603
R523
L521
R96
R98
R152
R153 R156
R157
R158
R159
R160
R161
R162
R163
R164
R172
R183
R184
R186
1
95
R196
R301
R302
R303
R304
R305
R306
R307
R308
R309
R310
R311
R332
R435
R436
R501
R502
R503 R505
R507
R520
R521
R522
R543
R545
R546
R561
R566
R567
R589
R590
SD S-METR
TUNOUT R591
R592
R603
R594
R602
W
252
L600
W98
C602
W506
W804
W803
W812
W814
C610
R599
W604
W611 W805
W605
W802
W826
C624
R331
W75
R253
W72
W808
W78
W93
C552
W823
W76
W79
W810 W806
C625
W831
R562
L602
R100
C628
W832
L601
C626
W827
C627
C632
VT
W838
L604/
L605/ W834/
W835/
BE
BE
B
BE
BE
BE BE
6160
41
1
20
100
21
40
14
58
EE
EE
Q151
Q156
Q330
D3
D501
D504
D506
Q153
Q351
Q352
D162
D502
D503
Q152
Q501
IC10
IC11

18
KDC-MP5029/W5031
/W5031Y/W531Y
ZAA AB AC AD
1
2
3
4
5
6
7
S
D
G
EB
C52
C44
C25 C29
C50
RFOK
R12
C3
C8
C10
C11
C13
C15
C27
C35
C37
/RESET
MIDIO
MIACK
C41
C46
C32
CP6
R27
R47
C18
CP2
CP3
CP5
CP7
CP11
R6
R13
L1
R42 R46
R48
R49
R50
R63
R38
CP12
CP15
CP13
R68
CP14
R65
R67 C69
C67
C66
R66
R69
C72
1
34
5
1
1633
48
32 17
6449
BEC
CBE
Q5
Q4
Q7
S1 S2
S3
S4
IC3
IC6
CD PLAYER UNIT X32-5500-00 (J74-1552-12)
PC BOARD (COMPONENT SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5500-00
Ref. No. Address
IC3 4AA
IC6 5AB
Q4 5AA
Q5 5AC
Q7 5AB

19
KDC-MP5029/W5031
/W5031Y/W531Y
AIAHAGAFAE
1
2
3
4
5
6
7
PC BOARD (FOIL SIDEVIEW)
C54
L2
R21
C24
C71
R54
R56
R53
R58
C57
C56
R57
C63
C58
R60
R62
R59
R61
R52
R5
CP1
R10
C12
C5
R70
R2
C7
R9
R34
C28
R36
R35
C6
C34
R22
R37
C30
C31
R43
C26
C21
R29
R64
C38
R45
R44
C53
R40
C51
C48
C49
R51
C36 C47
CP4
R23
C16
X2
C14
R18
CP16
R14
R11
R7
R8
R17
R15
R16
C9
C19
C4
R1
C70
C42
C20
R31
R33
R32
C22 C23
R24
R25
C17
X1
R3
R4
C1 C2
C68
C64
C43
C33
R28
C45
CP9
CP8
C59
C55
R55
CP10
C60
R39
C61
C62
C39
1
16
1
100 25
51
75
76 50
26
1
34
5
3
1
4
5
241
45
31
25
15
26 1
50
100
76
7551
16
130
BEC
CEBBEC
ECB
13
45
S
D
G
EB
EB
EB
BU5V
S.7.5V
FCS
TRK
/MUTEL
/MUTER
SLED
SD
TD
S.GND
MOTOR
SPDL MD
FD
/MSTOP
LIM-SW T2
INT
T1 /RST
T3 T4
FLAGIN
SEARCH
/RESET
BU3.3V /STB
TXD1
/MICK
CLK
A0
/BOOT
/MILP
RXD1
LZM
RZM /MIRST
/MICS
POND3.3
XI
FOGUP
/MRST
SLED IN
LD
LO/EJ
DGND
/EJECT
/LOAD DATA
SLED OUT
/MUTER
D5V
8EJE
LOE/LIM
D.GND
FCS UP
D3.3V
TRK IN
TRK OUT
FCS DOWN
LOS Lch
/MUTEL
Rch
/MSTOP
PON
T
ADCIN
/CLK
FE
D.OUT
Vref
VR
IOP-
PD
C+D
VCC
TE
RF
ARF
F
E
F
A
B
SDO
SPDL+
SPDL-
A.GND
DAVdd3.3V
12EJE
A.+8V
BU2.5V
LRCKIA
D.GND
SDIO
MIRR LOCK HOLD
TZD
BCKIA
TXO
FZD
IOP+ GND
ATEST
FLAG
TX
Vref
REQ
STBY
Q6
Q3
Q10
CN1
D3
Q8
Q9
D2
CN2
Q1
IC2
IC4
IC5
IC1
IC9
IC7
IC8
CD PLAYER UNIT X32-5500-00 (J74-1552-12)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5500-00
Ref. No. Address
IC1 5AH
IC2 2AG
IC4 5AF
IC5 3AF
IC7 4AG
IC8 3AH
IC9 3AG
Ref. No. Address
Q1 5AH
Q3 5AF
Q6 5AG
Q8 2AF
Q9 3AF
Q10 3AF

20
KDC-MP5029/W5031
/W5031Y/W531Y
ABCDE
1
2
3
4
5
6
7
P1
∗
D162
D506
J5
D502
D503
D501
D3
J4
Q501
REMOTE
WIRED
KP2311ETR-G:D502,503 KV1430STL-G
HVC383B-E
D504
D506 : :
D55,261 S2V60
AM01ZNF
D1F60-5063
UDZS4.7B
MAZ4082N-L
1SS133
RN739F
DAN202U or
MAZ4062-L
MC2848
D76,402,403
D203,259,260
D301-304
D501
D81
:
:
:
:
:
D72,74,75,251-253,255-258
D73,254
D57
D71
:
:
:
:A
∗
2SA1576A
DTA124EUA
DTC143TUA
UDZS6.8B
IMSA-6801-E
MAZ4068N-M
HN3G01J(BL)-F
1SS355
D52,54,305,306
D53
Q501
D3
:
:
:
:
:
Q252
Q330
Q351,352 : :
:
BR24L04FV-W
2SD1858
2SB1565(E,F)
DTA114YUA
2SC4081
UMC2N
S-80836CNNB-J:IC8
Q71,74
Q51-53,91,156
Q72
Q73
Q151
IC10
IC11
IC15
:
:
:
:
:
E-TDA7516
BA00CCWT
:
:
:
IC4
IC3
IC6
IC7
IC1 BA4911-V4
TC7W02FU-F
E-TDA7479AD
:
:
:
:
∗
:
∗
D504
∗
A
∗
WH2
GND LINE
SIGNAL LINE
B LINE
Q222
Q221
Q225
CN91
CN90
(X34- )
DTA124EUAQ225 :
:Q221,222 DTC143TUA(X89- )
(X89-2690-10)
E-VOL
&
2-PREOUT
MUTE
AM RF AMP
RDS DECODER
ANT.
PRF21BE471QB2TH1 :
X34-
WH1
(E30-6229-05)
SI-8050JF3NFIC9 :
2SA1036KQ54 :
DTC114YUA
2SA1577Q152
Q153 : :
D162 : STZ6.2N
D91
D166
SFPB-54VNF
B30-1710-05:
:
(E30-6403-05)
MPTC
GND
C589
C116
330P
10u16
8
7
6
5
4
3
2
1
C117
2.2u50
TP314 FSEL
FILOUT
C118 C119
0.01
9
10
11
12
13
14
15
16
OSCINMPX
EXTRES
ARI
GND
OSEL
TM
VCC
OSCOUTVREF
RDDA
QUAL T57
RDCL
4.7uH
L101
C113
10P
C112
10P
R114
R113 2.2K
R112 2.2K
TP501
R544 2.2K
R543
5.6K
C541
270P
L507
8P
C543
C610
1P
5P
C542
15P
C544
TDF DET
ESD GND
14
15
TP166
1K
TP164
R193 XTALG
10.2
5
X
5
0.033
C549 2200P
R546 4.3K
R545 33K
C553 0.1
C559 3300P
C548
0.022
C547
22u10
0.01
C623
0.01
0.1
23
22
21
26 25
24
29 28
27
VCCVCO
LPHC
VCOE
GNDVCO
20
LP LPOUT
VCOB
WINTC2
19
18
17
16
VCC3 VREF2 ISSTC1 ISSTC2
R507
C504
0.01
1000P
C521
L505
0.33uH
C522
C626
1000P
R520
220 R521
1.5K
18P
C524
15P 0.33uH
C525 L520
C516 L501
10P
C503 0.1
C505
4.7u16
C502
L502
33uH
1500P
R501
6.8K
6.8uH
R502
2.2K
L518
100P L521
10NH
C604
C518 C520
1
C517
0.47
C606
C605
L506
100P
R503
2.2K
C507
22u10
C506
1K
0.68
C510 100P
C509 68P
R504
4.7
C508 22u10
1K
C602 150P
L600
TP506 L4
R505
L503
1000uH
R594
10
R605
10 100uH
TP507
1K
∗
R172
TP345
C581
VCCIF1
IF1AMP1OUT
IF1REF
IF1AMP1IN
GNDIF1
IF1AGCIN
FSTC
AMAGC2TC
MIX1OUT2
C519
1
0.47
C531
1
R603 56
C514
GNDRF
FMMIX1IN2
WINTC1
FMAGCTC
TV1
15
14
13
12
FMMIX1IN1
FMPINDR
11
10
9
8
AMRFAGCOUT
4
AMPINDR
AMMIX1IN1
AMMIX1IN2
7
6
5
DEVTC
MUTETC
MIX1OUT1
3
2
1
0.47u50
C563
R599
22
C582
0.022
78 79 80 75 76 77 72 73 74
0.1
100P
C579
AMREFDEMC
IF1AMP2IN
0.068
70 71
L508 10.700MHz
CF51 10.700MHz CF52
14
R163
R164
C551
10
R596
6800P
C545
C550
R522
22K
1000P
C527
0.01
C625
L504
R506 1M
C583
C587
64
32
34
2.2K
X3
4.332MHz
+B
C222
C221
10u16
270
R221
10u16
270
R222
R225
TP2
100
R229
R226
30K 30K
TP3 100
R230
TP1
W101
MUTE
GND
2VDD
1
5
4
3
FR
FL
1
2
3TP8
TP6
TP5
TP4
TP7
390K
R565
C554 0.33
0.01
C513
1.2K
R602
KDC-W531Y
KDC-W5031/Y
KDC-MP5029
KDC-328
KDC-3028
MODEL NAME DESTI-
NATION X89-2690-10
DAUGHTER UNIT
YES
E
E
M
K
KYES
YES
FRONT
AUX R
AUX L
AUX GND
W394
C627
100P
3
C
6
1000P
C632
1P
1P
47P
W373W70
0.01
C511
1
C584
10
R598
L604
L605
10
R523
10
R606
C628
1
+
+
+
+
+
+
+
+
+
IC7
I
C
ELECTRIC UNIT (X34-339x-xx)DAUGHTER UNIT (X89-2690-10)
a
4.7K
4.7K
22K
22K
5V
0V
FM : 0V
4.6V
0V
AM : 0V
0V
0V
3.3V
3.9V
8.1V
4.0V
4.7V
4.0V AM : 5.9V
FM :5.9V
0V
4.0V
2.5V
0V
8.1V
0V
0V
2.2V
1.8V
8.1V
4.3V
3.8V
2.0V
2.0V
0V
3.5V
8.2V
7.8V
0V
5V
0V
5V
0V
2.5V
5.0V
2.5V
0V
FM : 4.3V
AM : 5.5V
AM : 0V
FM : 2.4V
AM : 1.8V
FM : 0V
FM :
AM :
AM : 3.5V
FM : 0V
AM : 4.3V
FM : 3.7V
AM : 3.0V
FM : 0V
AM : 4.9V
FM : 4.5V
AM : 4.2V
FM : 0.2V
8.1V
2.8V
5.0V
X34-339x-xx (1/4), X89-2690-10 (1/1)