Kenwood KDC-MP5028 User manual

© 2005-2 PRINTED IN JAPAN
B53-0241-00 (N)1553
CD RECEIVER
KDC-MP5028/MP528
/W6031/W6031Y
SERVICE MANUAL
This product uses Lead Free solder.
Plastic cabinet assy
(A02-2732-03) Lever
(D10-4589-04)
x2
Screw set
KDC-MP5028/MP528:
(N09-6212-05)
KDC-W6031/W6031Y:
(N09-6280-05)
DC cord
(E30-6412-05)
Screw set
(N99-1723-05)
Mounting hardware assy
(J21-9716-03)
Remote controller assy
(A70-2067-05)
MODEL TDF PANEL No. TDF NAME
KDC-MP5028 Y33-2180-61 TDF-MP55DB
KDC-MP528 Y33-2180-62 TDF-MP55D
KDC-W6031/W6031Y Y33-2180-64 TDF-W6031
TDF PANEL INFORMATION
Size AA battery
(Not suplied)
DC cord
(E30-6414-05)
Antenna adaptor
(T90-0523-05)
KDC-MP5028
KDC-MP528
KDC-W6031
KDC-W6031Y
Panel assy
(A64-3509-12)
Panel assy
(A64-3510-12)
Panel assy
(A64-3512-12)
Escutcheon
(B07-3125-01)
Escutcheon
(B07-3126-01)
Escutcheon
(B07-3126-01)
Depends on the model.
Refer to the parts list.
CD MECHANISM EXTENSION
CORD (24P) : W05-0934-00
RC-527

2
KDC-MP5028/MP528
/W6031/W6031Y
BLOCK DIAGRAM
F/E A8V
AM+B
SW5
RDS SW5
LX-BUS
BU
AUX
E-VOL
IC2
CD MECHA
SERVO+B
A8V BU5V
CD5V
3.3VREF.
PRE+B
A8V
A8V
4VPRE-REF.
AM+B
IC9
IC11
Q300
A8V
AM+B
SYSTEM u-COM
OPELDISP
MARINEDISP
BU
PW-IC
PW-IC SVR
SP-OUT
MUTE
PRE-OUT
IC10
EEPROM
SW5
Q400-405 PRE-OUT(2V/4V)
IC902
3.3VREF.
SVR/ SVR+B
A8VPW-IC SVR
3.3VREF.
Q107
EXT-AMP
PHONE
ACC-DET
Q112
DIMMER
Q108
SURGE
Q109
PAN/
PANEL
Q7
BU5V
IC12
PCON-SW
Q1
Q103
BU-DET
Q111
4V
ILL+B
Q15
IC5
SVR+B
Q9
SW14V
Q4
SW5V
Q3
ANT-SW
Q101
CD SERVO
Q9
PAN
Q18
A8V
Q5
PAN5V
Q13
DC-CN
BU5PAN5V
ILL+B
A8V
PRE+B
SVR+B
SERVO+B
CD5V
BU5
SW5
P-M+B
ILL+B
M+B
PRE+B
CD5V
DET
TYPE-SW
OEM TYPE-SW
MUTE
BU5 BU5
DC-CN etc
GUIDE ILL
DSI/ BU5
EEP-DET
MECHA
SLIDE
DET
MOTOR
DRIVER
P-M+B
RST
IC7
IC8
BU5
PAN5 ILL+B
CN/FPC
MECHA
SLIDE
CN-DET
RESET ENCODER
ROTARY
REMO SW5V
SW
SW F+/F-
DISP BLACK
FL DRIVER
ILL
KEY-ILLUMI
SW ILLUMI
KEY MATRIX
KEY
FL
IC2-6
IC1
MOTOR+B
SW5 Q1
IC1
Q6
PAN5
PAN5
Q2 F+/F-
FL+B OUT SW
Q4,5
IC4
IC2
FST DXM6580W
DXM6800W
3
8
2
8
2
4321043
5
R/R
R/L
F/R
F/L
2
FRONT
REAR
SUB-WOOFER
P ON
PON ILL
P ON
PON PAN CD
P ON
ANT CON P CON
BU
EXT-CONT
ACC
ILLUMI
PHONE
P-ANT
P-CON
B.U.
MUTE DC-DET
PON PAN
(PWR OFF ONLY)
DET
EXT CONT
PHONE
ACC DET
DIMMER
2
3
2
PW-IC E-VOL
RST
BU DET
EXT CONT/PHONE
DIMMER/ACC DET
P CON/PON
BU DET/ANT CON
PON PAN CD/PON ILL
PON PAN
11
52
SW
FUNCTION
55
9
P ON
ELECTRIC UNIT (X34-342x-xx/3762-71)
(X16- )

KDC-MP5028/MP528
/W6031/W6031Y
3
BLOCK DIAGRAM
EF
ACB
TR COIL
FO COIL
APC
IC7
16.934MHz
CLOCK
IC3
LPF
IC2
SW
A3.3V REG
IC1
LOADING &
MICRO
PROCESSOR
IC4
CLOCK
16.00MHz
RF AMP
SERVO
MP3 DECODER
WMA DECODER
1Mbit SRAM
PROCESSOR
D3.3V REG
IC6
MOTOR
DRIVER
MOTOR
SPINDLE BU3.3V REG
IC5
S2
S4
S1
S3
AAC DECODER
+
+
+
+
+
(0-01)ONLY
SLED
MOTOR
PICKUP
CD PLAYER UNIT (X32-5740) BOARD
MOTHER
VREF
D.GND
BU5V
8EJE-SW
12EJE-SW
LOS-SW
LOE/LIM-SW
D.GND
D5.0V
MOTOR
LO/EJ
S.GND
D.GND
D.GND
P-ON1
S.GND
DATA
MUTE R
MUTE L
MSTOP
MRST
CLK
A.GND
A8V
R-ch
L-ch
D.GND
S.GND
D.GND
D.GND
D.OUT
P-ON2
S7.5V
DMUTE

4
KDC-MP5028/MP528
/W6031/W6031Y
COMPONENTS DESCRIPTION
●SWITCH UNIT (X16-2920-11/3142-70)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 VFD Driver
IC2 Remote Control IC
Q1 SW5 The power supply for IC2 is turned on when Q1’s base level goes “L”.
Q2,Q3 FL+ SW The power supply for filament is turned on when Q3’s base level goes “H”.
Q4 GREEN LED SW GREEN LED is turned on when Q4’s base level goes “H”.
Q5 RED LED SW RED LED is turned on when Q5’s base level goes “H”.
Q6,Q7 VFL SW The power supply for IC1’s VFL is turned on when Q7’s base level goes “H”.
Q8 GREEN LED SW GREEN LED (TRIANGLE LED) is turned on when Q8’s base level goes “H”.
(TRIANGLE LED)
●CD PLAYER UNIT (X32-5740-0x)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 A3.3V regulator Power supply for audio 3.3V
IC2 Ope amp for low-pass filter
IC3 4ch BTL driver Driving spindle motor and loading/ejection operation
IC4 µ-com
IC5 Bu 3.3V regulator Power supply for backup 3.3V
IC6 D3.3V regulator Digital 3.3V power supply
IC7 Audio DAC built-in servo DSP MP3, WMA, and AAC compatible
IC8 Memory IC Used only for 0-02 destination
IC11 Buffer IC Level shift
Q1 A3.3V discharge circuit
Q4 Electric AMP Adjusts current to be sent to laser
Q5,6 SW 5V
Q7,8 SW 8V
D1 For electric AMP
●ELECTRIC UNIT (X34-342x-xx/3762-71)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 System µ-com
IC2 E-vol IC
IC3 Regulator IC for A8V
IC4 Power IC
IC5 Regulator IC for ILL+B (10.65V)
IC6 Logic IC for muting
IC7 Reset IC
IC8 Motor Driver IC for Slide panel mecha
IC9 RDS Decoder IC
IC10 Rom IC for Installer-Memory and Rom-Correction

KDC-MP5028/MP528
/W6031/W6031Y
5
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
IC11 AMP for 4V Pre-Out Ref.
IC12 Switching regulator IC for CD mecha D5V and FL filament
IC902 AMP for Power IC SVR and E-vol IC 3.3V Ref.
Q1,2 B.U.5V AVR While BU is applied, BU5V AVR outputs 5V.
Q3,11 SW5V When Q11’base goes Hi, SW5V outputs 5V.
Q4,906 SW14V When Q4’base goes Hi, SW14V outputs 14V.
Q5,6 AUDIO8V AVR When Q6’base goes Hi, A8V AVR outputs 8.3V.
Q7,8 MOTOR+B AVR When Q8’base goes Hi, M+B AVR outputs 8.3V.
Q9,10 SERVO+B AVR When Q10’base goes Hi, S+B AVR outputs 7.7V.
Q12 SW for IC12 When Q12’base goes Lo, IC12 is turned on.
Q13 PAN5V When Q13’base goes Lo, PAN5V outputs 5V.
Q14 4V PRE+B Short Protection If Q15’Emitter short to GND, between Q14’Base to Emitter more than
0.6V, Q14 ON and Q15 is turned off.
Q15,16 4V PRE+B When Q15’base goes Hi, 4V PRE+B outputs 12V.
Q17,18 ILL+B SW When Q17’base goes Hi, ILL+B SW outputs 10.65V.
Q101,102 P-ANT SW When Q102’base goes Hi, P-ANT SW outputs 14V.
Q103,106 P-CON SW When Q106’base goes Hi, P-CON SW outputs 14V.
Q104,105 P-CON Protection Protects Q104 from being triggered erroneously.This is achieved by
turning on output protection when P-CON output grounding is detected.
Q107 Ext Amp Control Buffer
Q108 Small lamp det SW When Q108’base goes Hi, Q108 is turned on.
Q109,110 Surge det When Q109’base goes Hi, Q109, Q110 are turned on.
Q111 BU det When Q111’base goes Hi, Q111 is turned on.
Q112 ACC det When Q112’base goes Hi, Q112 is turned on.
Q113 Mute driver When Q113’base goes Lo, mute driver is turned on.
Q114 Mute driver When Q114’base goes Lo, mute driver is turned on.
Q115,116 Mute driver When a base goes Lo, mute driver is turned on.
Q300,301 AM+B SW When Q301’base goes Hi, AM+B is out.
Q304 DSI (Disabled System Indicator) DSI blinks when Q304’base goes “H/L”
Q400~405 Pre-out mute SW When a base goes Hi, Pre-out is muted.
Q905 SVR+B AVR When Q905’base goes Hi, SVR+B AVR outputs 14V.

6
KDC-MP5028/MP528
/W6031/W6031Y
MICROCOMPUTER’STERMINAL DESCRIPTION
●MECHANISM MICROCOMPUTER 703030BYGCJ09A (X32-574 : IC4)
Pin No. Pin Name I/O Application Processing Operation Remarks
Description
1NCONot used. Low-fixed
2E2P_SCL I/O Rom correction E2P I2C clock
3~5 NC O Not used. Low-fixed
6VDD - 5V electric potential
7GND - GND electric potential
8,9 NC O Not used. Low-fixed
10,11 PON1,PON2 O Power ON/OFF control H : ON, L : OFF
12 LOE/LIM_SW I Down-limit SW detection L : Lim detection
13 DAC_MUTE O DAC MUTE control H : MUTE ON, L : MUTE OFF Used only with DXM-6590W.
With DXM-6580W, open and L-fixed.
14 DAC_RST O DAC RESET H : NORMAL, L : RESET Used only with DXM-6590W.
With DXM-6580W, open and L-fixed.
15 EMPH O External DAC Emphasis control H : Emphasis ON, Used only with DXM-6590W.
L : Emphasis OFF With DXM-6580W, open and L-fixed.
16,17 NC O Not used. Low-fixed
18 IC/Vpp - Write voltage (FLASH) L : Normal operation,
H : In writing.
19 MUTE_L O Lch audio MUTE control L : MUTE ON, H : MUTE OFF
20 MUTE_R O Rch audio MUTE control L : MUTE ON, H : MUTE OFF
21 TYPE I DAC switching terminal
H : DSP built-in DAC used,
H : DXM-6580W, L : DXM-6590W
L : DSP built-in DAC Not used.
22 TEST_O 1 O TEST MODE O 1 (Not used.)
23 TEST_O 2 O TEST MODE O 2 (Not used.)
24 TEST_O 3 O TEST MODE O 3 (Not used.)
25 TEST_O 4 O TEST MODE O 4 (Not used.)
26 NC O Not used. Low-fixed
27 WAIT I Wait control signal detection
28~30 NC O Not used. Low-fixed
31 RESET I Reset detection H : NORMAL, L : RESET
32 XT1 I Not used.
33 XT2 - Not used.
34 REGC -
35 X2 -
36 X1 I
37 Vss - GND electric potential
38 VDD - 5V electric potential
39 NC O NC Output stopped in standby 3.3V driven
40 WRL I Multiplex WRITE signal 3.3V driven
41,42 NC O Not used. Low-fixed 3.3V driven
* DXM-6580W : X92-5080-00, DXM-6590W : X92-5190-00

KDC-MP5028/MP528
/W6031/W6031Y
7
Pin No. Pin Name I/O Application Processing Operation Remarks
Description
43 RD O Multiplex RD signal 3.3V driven
44 ASTB O Multiplex ASTB signal 3.3V driven
45 NC O Not used. Low-fixed 3.3V driven
46 NC O Not used. Low-fixed 3.3V driven
47~54 AD0~AD7 I/O Multiplex address/data 3.3V driven
55 BVdd - Bus interface power supply
56 BVss - Bus interface GND
57~61 AB8~AB12 I/O Multiplex data/address 3.3V driven
62~65 NC O Not used. Low-fixed 3.3V driven
66 CS O Chip select control H : OFF, L :ON 3.3V driven
67 DSP RESET O DSP reset control H : NORMAL, L : RESET 3.3V driven
68~70 NC O Not used. Low-fixed 3.3V driven
71 Avdd -
72 Avss -
73 Avref I A/D port reference voltage input
74 NC I Not used. Low-fixed
75 RAMSEL I With DRAM/No DRAM switching H :With DRAM, L :No DRAM
for different models
76 RZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V
77 LZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V
78 AAC I AAC compatibility switching H : AAC non-compatible, AAC non-compatible mode has priority
L : AAC compatible for both hardware and software.
79 ASEL I Audio output polarity switching H : Reverse output,
L : Non-reverse output
80 E2P_WR I E2PROM write switching H : E2PROM WRITE,
L : NORMAL
81 TEST_I 0 I TEST MODE I 0 (Not used.)
82 TEST_I 1 I TEST MODE I 1 (Not used.)
83 TEST_I 2 I TEST MODE I 2 (Not used.)
84 TEST_I 3 I TEST MODE I 3 (Not used.)
85 NC I Not used. Low-fixed
86 NC O Not used. Low-fixed
87 MSTOP I Standby restart interruption H : STOP release, L : STOP
88 INTSV I Interruption from servo IC H : Interruption
89~92 NC O Not used. Low-fixed
93 D-MUTE O Driver MUTE H : OFF, L :ON
94 SYS_SDA I/O System µ-com I2C data Flash write port (SI0)
95 NC O Not used. Low-fixed Flash write port (SO0)
96 SYS_SCL I/O System µ-com I2C clock Flash write port (SCK0)
97~99 NC O Not used. Low-fixed
100 E2P_SDA I/O ROM correction E2P I2C data
MICROCOMPUTER’STERMINAL DESCRIPTION

8
KDC-MP5028/MP528
/W6031/W6031Y
MICROCOMPUTER’STERMINAL DESCRIPTION
●MAIN MICROCOMPUTER 30624MWPA35GP (X34 : IC1)
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
(functional) ValueTable
1REMO EXTRA I Remote controller signal input Pulse width is detected.
2LX_MUTE LX_M I Mute request from slave unit H : Mute ON, L : Mute OFF
3AUD_SDA AUDIO I/O E-VOL data output terminal
4AUD_SEL AUDIO O E-VOL control terminal
5AUD_SCL AUDIO O E-VOL clock output terminal
6BYTE µCOM -
7CNVSS µCOM -
8XCIN µCOM I
9XCOUT µCOM I
10 RESET µCOM -
11 XOUT µCOM -
12 VSS µCOM -
13 XIN µCOM - 12.0MHz
14 VCC1 µCOM -
15 NMI µCOM I Not used.
16 CN_DET EXTRA I Panel communication detection H : No PANEL, L :With PANEL
17 RDS_CLK TUNER I RDS decoder CLK input terminal
(RDS Model only)
17 NC O Not used. (Other than RDS Model) Output L-fixed
18 LX_REQ_S LX_M I Communication request from slave unit
19 PON_AM Power supply I/O AM power supply control AM in operation : H,
AM not in operation : Hi-z
20 LX_REQ_M LX_M O Communication request to slave unit
21 TUN_IFC_OUT TUNER I F/E IFC OUT input terminal H :With station, L : No station
22 RDS_AFS_L TUNER I/O Constant switching at noise detection rRefer to truth value table.
23 RDS_AFS_M TUNER I/O Constant switching at noise detection rRefer to truth value table.
24 RDS_QUAL TUNER I RDS decoder QUAL input terminal
(RDS Model only)
24 NC O Not used. (Other than RDS Model) Output L-fixed
25 RDS_DATA TUNER I RDS decoder DATA input terminal
(RDS Model only)
25 NC O Not used. (Other than RDS Model) Output L-fixed
26 PWIC_BEEP PWIC O Beep output
27 TUN_SCL TUNER I/O F/E I2C clock input/output terminal (MAX400kHz)
28 TUN_SDA TUNER I/O F/E I2C data input/output terminal
29 VFD_SYS_DATA toPANEL O VFD data output terminal Data output
30 VFD_PAN_DATA toPANEL I VFD data input terminal Data input
31 VFD_CL toPANEL O VFD clock output terminal 125kHz
32 VFD_INH toPANEL O VFD data blanking output H : Light ON, L : Light OFF
33 SDA/CD_SDA CD I/O CD mechanism I2C data input/output
terminal
33 SDA/ROMCOR_SDA EXTRA I/O ROM correction E2PROM I2C data
input/output terminal
34 SCL/CD_SCL CD I/O CD mechanism I2C clock output
terminal

KDC-MP5028/MP528
/W6031/W6031Y
9
MICROCOMPUTER’STERMINAL DESCRIPTION
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
(functional) Value Table
34 SCL/ROMCOR_SCL EXTRA I/O ROM correction E2PROM I2C clock
output terminal
35 PON_PANEL Power supply I/O Panel 5V control terminal POWER ON :Hi-Z, POWER OFF :L,
50Ms before PON_PANEL/CD turns H :L
36 DSI EXTRA I/O DSI control terminal OFF : Hi-z No PANEL : Pulse driven
ILL_ON, OPEN (When Power_ON) : H
37 PM_MOT1 P-MECHA O Panel motor control 1 wRefer to truth value table.
38 PM_MOT2 P-MECHA O Panel motor control 2 wRefer to truth value table.
39 ELM µCOM I FLASH EPM input terminal
40 PM_OPEN P-MECHA I Panel full open detection eRefer to truth value table.
41 PM_CLOSE P-MECHA I Panel mechanism close detection eRefer to truth value table.
42 ROMCOR_DET EXTRA I E2PROM write request H :Writing
43 PM_DET P-MECHA I Panel mechanism detection H : Function check in progress
44 VFD_CE toPANEL O VFD_control request
45 ROTARY_CW toPANEL I VOL key input Pulse width is detected.
46 ROTARY_CCW toPANEL I VOL key input Pulse width is detected.
47 CD_DISC12_SW CD I CD disc detection terminal (12cm)
48 CD_LOS_SW CD I CD loading detection terminal
49 CD_MUTE_R CD I CD MUTE(Rch) request terminal H : Normal, L : Rch mute request
Effective only for CD
50 CD_MUTE_L CD I CD MUTE(Lch) request terminal H : Normal, L : Lch mute request
Effective only for CD
51 CD_MRST CD O CD mechanism µ-com RST terminal H : Normal, L : Reset
52 CD_MSTOP CD O CD mechanism µ-com stop terminal H : CD mechanism µ-com in operation
L : CD mechanism µ-com stop
53 NC CD O Not used. Output L-fixed
54 CD_LOE_LIM_SW CD I CD detection terminal (Chucking SW) H : Loading complete, L : No disc
55 CD_LOEJ CD I/O CD motor control terminal qRefer to truth value table.
56 CD_MOTOR CD O CD motor control terminal qRefer to truth value table.
57 PON_ILLUMI Power supply I/O Key Illumi power supply control ON : H, OFF : Hi-Z
Panel 5V/CD WMA Power supply POWER ON : L POWER OFF : H, when
58 PON_PANEL_CD Power supply O control terminal RESET, L before M-STOP.Refer to timing
chart
59 PON Power supply O Power supply control POWER ON :H, POWER OFF :L
60 VCC2 µCOM -
61 EXT_AMP_CON EXTRA I/O External AMP control
61 NC O Not used. (Destination with no external Output L-fixed
AMP control)
62 VSS µCOM -
63~65 TYPE_1~TYPE_3 TYPE I Destination switching yRefer to truth value table.
66 TUN_TYPE1 TYPE I Destination setting 1 tRefer to truth value table.
67 TUN_TYPE2 TYPE I Destination setting 2 tRefer to truth value table.
68 OEM_DISP_DATA EXTRA I/O External display data External display
68 NC O Not used. (M-destination only) Output L-fixed
69 OEM_DISP_CLK EXTRA I/O External display CLK External display
69 NC O Not used. (M-destination only) Output L-fixed

10
KDC-MP5028/MP528
/W6031/W6031Y
MICROCOMPUTER’STERMINAL DESCRIPTION
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
(functional) ValueTable
70 OEM_DISP_CE EXTRA I/O External display control request External display
70 NC O Not used. (M-destination only) Output L-fixed
71 NC EXTRA O Not used. Output L-fixed
72 P_CON Power supply O External AMP control terminal POWER ON :H, POWER OFF :L,
STANDBY source : L
73 KEY_REQ toPANEL I Communication request fromVFD driver Connect to VFD_PAN_DATA
74 ANT_CON EXTRA O Power antenna control TUNER ON : H
75 ILLUMI_DET EXTRA I Dimmer Illumi control L : ON, H : OFF
76 BU_DET EXTRA I Momentary power down detection With BU : L,
No BU, Momentary power down : H
77 ACC_DET EXTRA I ACC Power supply detection With ACC :L, No ACC : H
78 (PWIC_SVR) PWIC O SVR discharge circuit When POWER OFF and momentary
power down, for 5 sec.: H, Then, : L
79 PWIC_MUTE PWIC O Power IC MUTE terminal When STANDBY source and momentary
power down : L, WhenTEL MUTE : L
80 PWIC_STBY PWIC O Power IC standby control POWER ON :H, POWER OFF :L
81 LX_CON LX_M O Boot up request to slave unit H : Slave unit ON, L :Slave unit OFF
When CD MUTE R is L : H (When CD)
82 MUTE_PRE_R AUDIO O PRE_OUT MUTE Rch At momentary power down : H
Refer to timing chart. Only with 2-zone
and NAVI interruption : L-fixed
When CD MUTE L is L : H (When CD)
83 MUTE_PRE_L AUDIO O PRE_OUT MUTE Lch At momentary power down : H
Only with 2-zone and
NAVI interruption : L-fixed
84 MUTE_0 AUDIO I/O E-VOL FRONT MUTE terminal L : MUTE ON, Hi-Z : MUTE OFF
85 MUTE_1 AUDIO I/O E-VOL REAR MUTE terminal L : MUTE ON, Hi-Z : MUTE OFF
86 MUTE_2 AUDIO I/O E-VOL OTHER MUTE terminal L : MUTE ON, Hi-Z : MUTE OFF
87 LINE_MUTE EXTRA I Line mute detection TEL MUTE : 1V or less
NAVI MUTE : 2.5V or more
88 NC O Not used. Output L-fixed
89 PWIC_DC_DET PWIC I DC Offset detection terminal
90 LX_RST LX_M O Hard resetting to slave unit H : Reset, L :Normal
91 MUTE_C AUDIO I/O E-VOL MUTE terminal (For AFS) L : MUTE ON, Hi-Z : MUTE OFF
92 NC O Not used. Output L-fixed
93 RDS_NOISE TUNER I FM noise detection terminal
94 AVSS µCOM -
95 TUN_SMETER TUNER I S-meter output
96 VREF µCOM - Connect to P_ON
97 AVCC µCOM - Connect to VCC
98 LX_DATA_S LX_M I Data from slave unit
99 LX_DATA_M LX_M I/O Data to slave unit
100 LX_CLK LX_M I/O LX BUS clock

KDC-MP5028/MP528
/W6031/W6031Y
11
PANEL General Purpose Port Functional Allocation
Pin No. Active (H/L) Pin Name I/O Application Processing Operation Description
68 H RED O RED LED control terminal RED : H
GREEN : L
69 H GREEN O GREEN LED control terminal RED : L
GREEN : H
70 L PON O Panel SW5V control terminal SW5V ON : L
SW5V OFF : H
71 H DBO O Triangle LED control terminal (eXcelon only) DISPLAY BLACKOUT ON : H
DISPLAY BLACKOUT OFF : L
71 NC O Not used. (Other than eXcelon) Output L-fixed
Truth Value Table
qCD_MOTOR, CD_LOEJ
CD_MOTOR CD_LOEJ
Stop L L
Load H L
Eject H H
Brake H Hi-z
wPANEL MOTOR CONTROL
OPEN CLOSE STOP WAIT
PM_MOT1 L H H L
PM_MOT2 H L H L
ePANEL MECHANISM CONTROL
FULL_OPEN FULL_CLOSE OTHER
PM_OPEN H L L
PM_CLOSE H L H
rAFS CONTROL
RDS_AFS_M RDS_AFS_L Condition
AFS LOW L L No sound output with AF search
AFS MID L Hi-Z Sound output with AF search
AFS HIGH Hi-Z Hi-Z Normal reception
tTUNER TYPE
TUN_TYPE1 (66PIN) TUN_TYPE2 (67PIN)
Third party model L L
OEM Model 1 L H
OEM Model 2 H L
OEM Model 3 H H
yDestination
TYPE3 TYPE2 TYPE1 Destination
000KDC-X589
001KDC-MP5028
010KDC-MP528
011KDC-W6531
100KDC-W6031
101KDC-X7529
MICROCOMPUTER’STERMINAL DESCRIPTION

12
KDC-MP5028/MP528
/W6031/W6031Y
●How to enter the test mode
In order to enter the test mode, reset the unit while simulta-
neously pressing down [1] and [3] keys.
●How to clear the test mode
The test mode is cleared in case of any of the following events:
resetting, momentary power down, Acc OFF, Power OFF and
removal of the panel.
●Initial conditions of the test mode
•Source is STANDBY.
•Displays lights are all turned on.
•The volume is at -10dB (The display is 30).
•Loudness (LOUD) is OFF.
•CRSC is OFF, regardless of whether there are switching
functions or not.
•SYSTEM Q is NATURAL (=FLAT).
•BEEP will sound anytime with a short push.
•Auxiliary (AUX) is ON.
•SWPRE is SUB WOOFER (2 PREOUT models).
●RDS automatic measurement
Conventionally, the PS display has been visually checked on
the production line.This will be replaced by a new processing.
The PS data will be received and the PS contents is to be
verified as “RDS_TEST”When this is verified, the P-CON ter-
minal is forced to go OFF. ( In this case, “_” means blank.)
→This will be a dedicated test mode processing.
On the P-CON, when power is turned off once and, then,
turned on again, (Power OFF →ON ) the unit will be
restarted.
●Special display when set toTUNER
When inTUNER mode, if any of the following displays appear,
there is an abnormality with the front end.
•“TNE2P_NG” : The E2PROM is still with the default (un-
specified) value, due to the fact that the front-end being
shipped without going through the adjustment process.
•“TNCON_NG” : In this condition, the communication with
the front end is not possible.
●Forced switching of K3I
In TUNER FM mode, each time [6] key is pressed, the func-
tions move in the following cycle : AUTO →forced WIDE →
forced MIDDLE →force NARROW →AUTO.The initial condi-
tion is AUTO and the displays below will appear.
•AUTO : FM1_98.1A
•Forced WIDE : FM1_98.1W
•Forced MIDDLE : FM1_98.1M
•Forced NARROW : FM1_98.1N
●CD receiver test mode specifications
•In the display mode, the initial setting is P-TIME.
•Jumps are made to the following tracks by pressing the
key. No.9 →No.15 →No.10 →No.11 →No.12 →No.13 →
No.22 →No.14 →No.9 (Returns to the beginning)
It must be noted, however, that when paying MP3 / WMA /
AAC disk, which contain 8 files or less, the first track and
the following tracks are played in order.
•When key is pressed, it goes down by one track.
•When playing MP3 / WMA / AAC disks, the file format is
displayed immediately before playing each file.
(“MP3”, “WMA”, “AAC”)
•When a CD is used as a source, by short-pressing [1] key, a
jump to the Track No.28 is made.
•When a CD is used as a source, by short-pressing [2] key, a
jump to the Track No.14 is made.
•When a CD is used as a source, by short-pressing [3] key, a
display of CD mechanism model name and its version is
made.When the short-pressing of [3] key is made for the
second time, the normal display is resumed. (Time code
display)
•When a CD is used as a source, by short-pressing [6] key, a
jump to the Track No.15 is made.At the same time, the vol-
ume value is set to 25 (2V PRE) and 27 (4V PRE).
●Audio Adjust mode
•By short-pressing [AUD] key, the Audio Adjust mode is en-
tered.
•As with the [AUD] key, [*] key on the remote controller can
be used to enter the Audio Adjust mode.
•As for the adjustment items, items for both the AUDIO FUNC-
TION MODE and SETUP MODE are included.
•The first item is the Fader which is followed by :Balance →
Bass Level →Middle Level →Treble Level →( Sub Woofer
Level ) →HPF Front →HPF Rear →LPF Sub Woofer. (Af-
TEST MODE
:
6 8 0 0 0 1 2 3
Version
Model Name
Display
contents

KDC-MP5028/MP528
/W6031/W6031Y
13
ter this, any of the item can be selected)
*Normally, Sub Woofer Level is not included. In this ver-
sion, however, the Sub Woofer Level is included, and this
has been already arranged.
•With the remote controller, continuous forwarding is prohib-
ited.
•Using the VOL knob, the Fader is to be adjusted to the fol-
lowing three levels :R15 ↔0 ↔F15.(The default value :0)
•Using the VOL knob, the Balance is to be adjusted to the
following three levels :L15 ↔0 ↔R15.(The default value :
0)
•Using theVOL knob, the Sub Woofer Level is to be adjusted
to the following three levels : -15 ↔0 ↔+15 . (The default
value : 0)
•Using the VOL knob, Bass / Middle / Treble Level is to be
adjusted to the following three levels : -8 ↔0 ↔+8 . (The
default value :0)
•Using theVOL knob, the HPF Front / Rear is to be adjusted
to the following two levels :Through ↔180Hz (or 220Hz).
(The default value :Through)
•Using the VOL knob, the LPF Sub Woofer is to be adjusted
to the following two levels :60Hz (or 50Hz) ↔Through.(The
default value :Through)
•Using the VOL knob, the Sub Woofer Phase is to be ad-
justed to the following two levels :Reverse ↔Normal .(The
default value :Normal)
•Using the VOL knob, the Volume Offset is to be adjusted to
the following two levels : -8 ↔0. (The default value : 0)
•Using the VOL knob, the Loudness ON / OFF is to be ad-
justed to the following two levels : OFF ↔ON.(The default
value : OFF)
•Using theVOL knob, the 2 Zone ON / OFF is to be adjusted
to the following two levels :OFF ↔ON.(The default value :
OFF)
•Items of Bass f / Bass Q / Bass EXT / Middle f / Middle Q /
Treble f are not included in the audio adjustment.
●MENU Items
•By short-pressing [Q] key, MENU can be entered.
•The [DNPP/SBF] and [DIRECT] keys on the remote con-
troller can also be used to enter the MENU.
•With the remote controller, continuous forwarding is prohib-
ited.
•When a CD is used as a source, the default item will be the
F/W Version. (DXM-6800 mechanism installed models.)
* DXM-6800 : X92-5100-00
●2-ZONE Items
•When using sources other than the STANDBY source, us-
ing a short-press on [AUTO] / [TI] key, 2-ZONE ON / OFF is
achieved.
(Since built-in AUX function is not available with KDC-X589
/ KDC-X7529, this is effective only when CA-C1AX is con-
nected.)
●Backup Current Measurement
When reset in Acc OFF (Back Up ON) condition, MUTE termi-
nal goes off after 2 seconds, instead of 15 seconds. (During
this time, the CD mechanism does not function.)
●OPEL Communication Items
During the test mode, OPEL communication line outputs the
following.
(At every 500msec, the output condition of the communica-
tion line will be switched.)
●Special display when all lights are on
When all lights are on with the STANDBY source, the follow-
ing displays are made when the keys shown below are pressed.
[1] Key Version display
(Display)413K-1.02 [“Development Name” -
“Version”]
[2] Key Serial number display (8 digits)
(Display)xxxxxxxx
[3] Key Short-press :Power ON hours is displayed.
During Power On hours display, by long-pressing
for 2 seconds, the Power ON hours is cleared.
(Display)PON xxxxx MAX 65535 (Hours)
[4] Key Short-press :CD operation hours is displayed.
During CD operation hours display,
by long-pressing for 2 seconds, CD operation
hours is cleared.
(Display)CDT xxxxx MAX 65535 (Hours)
TEST MODE
CE
DATA
CLK
500msec 500msec 500msec

14
KDC-MP5028/MP528
/W6031/W6031Y
[5] Key Short-press :CD EJECT number of times is
displayed.
During CD EJECT number of times display,
by long-pressing for 2 seconds, CD EJECT
number of times display is cleared.
(Display)EJC xxxxx MAX 65535 (Times)
[6] Key Short-press :PANEL Open/close number of times
is displayed. (*1)
During PANEL Open/close number of times
display, by long-pressing for 2 seconds, PANEL
Open/close number of times is cleared.
(Display)PC xxxxxx MAX 65535 (Times)
[FM] Key ROM correction version display
When E2PROM is not installed :ROM_ERR_
When un-written : ROM_R - - -
When data is incompatible :ROM_R***
(Display)ROM_R123
Key AUDIO data default value setting
(Display)AUD_INIT
Key Short-press : CD mechanism error log display
(Forward)
During CD mechanism error log display :
by long-pressing for 2 seconds, all error log
information is cleared.
(Display)I2C_OK__ →ERR_1-xx →ERR_2-xx
→ERR_3-xx →All lights turn on
NG (“xx” displays “--” or error codes)
(*1) One count is made when the panel opens to full or
when a disc is loaded.
●Initializing AUDIO-related value setting
During STANDBY sourcing, by short-pressing key, AU-
DIO setting values are returned to the default values.
●Check on FL-tube short-circuit
During STANDBY sourcing, each time [ATT] key is short-
pressed, the processing is switched in the following order.:
1. All lights off.
2. At every 125msec, the odd and even number terminals of
the grid with the largest numbers are lighted.
3. Only odd number terminals are lighted.
4. Only even number terminals are lighted.
5. All lights are lighted.
*After No 5, the processing goes back to No.1 and this is
repeated.
●Other
•At Power ON, “CODE_OFF”, “CODE_ON” displays will not
be made.
•During STANDBY sourcing, by short-pressing [AUTO] / [TI]
key, GREEN/RED of the key illumination is switched.
With KDC-X589 / KDC-X7529 models, which are installed
with Display Blackout function, switching will be made in
the following order :
*With the hardware configuration, when either GREEN/RED
of the key illumination could lights up, the RED of the tri-
angle illumination is to be lighted.
When desiring to light up GREEN of the triangle illumina-
tion, turn off both GREEN and RED of the key illumination.
•When staring up in the test mode, LINE MUTE prohibition
time is set to 1 second instead of 10 seconds.
•While in the test mode, security jig should not be used to
write the security code.
•While in the test mode, serial writing jig should not be used
to write the serial number.
•While in the test mode, even when a DC error is detected,
the detection information will not be written to the E2PROM.
•While in the test mode, even after an elapse of pre-set time,
the backup memory items will not be written to the E2PROM.
•Information Clear mode for Test Mode, backup/installer
memory, and CD mechanism error log, In the DC error de-
tection information clear mode, DEMO mode operation will
not be conducted.
Also, in the above mode, the menu of the STANDBY source
will not display DEMO ON/OFF switching items.
•While in the test mode, and at the same time, PM_DET
terminal is H, the following will apply to the EJECT key, re-
TEST MODE
KDC-X589
Key Illumi Triangle Illumi
GREEN RED GREEN RED
qOFF ON OFF ON
wOFF OFF ON OFF
eON OFF OFF ON
rOFF ON OFF OFF
KDC-X7529
Key Illumi Triangle Illumi
GREEN RED GREEN RED
qON OFF OFF ON
wOFF OFF ON OFF
eOFF ON OFF ON
rOFF OFF ON OFF

KDC-MP5028/MP528
/W6031/W6031Y
15
TEST MODE
gardless of whether a disc is in the unit or not.
Panel full OPEN/CLOSE is conducted with a short-push.
(Protection time : 3 seconds)
As far as this item is concerned, eject will be achieved by 1
second long-push on the EJECT key.
●Clearing Backup/Installer memory and CD mecha-
nism error log information (E2PROM data clear)
1. While pressing [Q] and [ATT] keys simultaneously, reset to
restart.This will initiate the initializing processes of backup/
installer memory and CD mechanism error log information.
2. When the initialization process is completed, the following
displays will be made.
Normal completion : “CD_O : AU_O_”
Abnormal completion1 : “CD_O : AU_X_” --- backup/in-
staller memory, initialization NG
Abnormal completion2 : “CD_X : AU_O_” --- CD mecha-
nism error log information, initialization NG
Abnormal completion3 :“CD_X : AU_X_” --- All initializa-
tion processes NG
3. While in this mode, even after an elapse of a pre-set time,
no backup memory items will be written to the E2PROM.
4. This mode is released by resetting.(What was on the last
screen will not be retained.)
●Clearing DC error detection information (E2PROM
data clear)
1. While simultaneously pressing down on [3] and [6] keys,
reset the unit to enter the DC error display mode.
2. During STANDBY sourcing, the current DC error conditions
will be displayed.
When error detected :“DC_ERR__”
When error not detected :“DC_OK___”
3. While the error conditions are being displayed, short-press
[AUTO] / [TI] keys to clear the detection information.
(E2PROM clear)
4. DC Error Display mode is released by resetting. (What was
on the last screen will not be retained.)
●Frequency spun switching (K / M type)
From the Power OFF condition, while pressing [1] and [5] keys
down simultaneously, press the [SRC] key and turn power ON.
●Security
•Forced Power ON mode (All models)
Even in the case where security is in effect, by simultaneously
pressing down on [Q] and [4] keys and resetting, it is possible
to turn the power on for 30 minutes only. After an elapses of
30 minutes, restart is possible only by resetting.
•How to register the security code after replacement of
the E2PROM (F/E) (Code security models)
1. Enter the test mode.(Refer to the section on “How to Enter
the Test Mode.”)
2. Enter the MENU. While “SECURITY” is being displayed,
long-press key for 1 second and enter the Security Reg-
istration mode.
3. Using [FM] / [AM] / / keys, enter the code.
[FM] key : Number up / [AM] key : Number down
key : Cursor Right / key :Cursor Left
4. Press key for 3 seconds to display “RE-ENTER.” Then,
re-enter the code using the method in above 4.
5. Press key for 3 seconds to display “APPROVED.”
6. Release the test mode. (Refer to the section on “How to
Release the Test Mode.”)
Note : The security code for this model cannot be deleted
by “all clear” command.
•Simplified method of clearing security code
1. When you are requested to enter the security code, while
pressing down on [AUTO] key, use a long-press on key
for 3 seconds. (----disappears.)
2. Using the remote controller, input “KCAR.”
Press remote controller [5] key 2 times and then press
key. (Input for “K.”)
Press remote controller [2] key 3 times and then press
key. (Input for “C.”)
Press remote controller [2] key once and then press
key. (Input for “A.”)
Press remote controller [7] key 2 times and then press
key. (Input for “R.”)
3. The security is released and the unit enters the STANDBY
sourcing mode.
4. If a wrong code is input, the unit goes into the Code Re-
quest mode.

16
KDC-MP5028/MP528
/W6031/W6031Y
ABCDE
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
R953
C7
R7
C958
W127
TH1
R273
C410
R928
R936
R
R316
R317
R318
R319 R332
R274
R275
C
C435
C436
C501
C507
C513
W110
W111
C955
C960
R938
R8
R24
R
R131
R404R405 R408R409
R412
R413
R503
R519
R934
X2
W121
C302C303
C408
C409
CP2
R268
C
R
R23
R25
R102
R130
R204
R208
R216
R218
R219
R220
R233
R257
R258
R322
R324
R329
R330
R331
R402
R403 R406
R407
R410
R411
R414
R415
R416
R417
R418
R419
R420
R421
R440
R441
R501
R505
R507
R281
R922
R925 R929
R933
W103
X1
R269
R270
R271
R234
R280
1
25 26
100
O
226
1
1
24
1
3
9106 7 5 1
213 11 12 8 4 3 27
1
1
1
1
116
151
12
24 2
123
RST
CNVss
1
W10
C956
W47
C502
C314
C310
W2
C401
C959
C15
C16
C313
W25
C405
C412
C431
W23
W19
W28
W27
W20
W17
W15
W11
W16
W21
W18
W22
C953
C954
C961
L301
W24
W26
C407
C406
C415
C416
C417
C418
C419
C420
C421
C422
C428 C503C504
C505
C506
C510
C511 C512
C529
X3
W14
W13
W12
W1
89
16
16
17
3249
64
48 33
7
45
8
3
45
E
B
B
EB
EBEBEBEB
EB
EB
EBEB
EB
EB
D904
Q905
Q906
Q115
Q116
D8
D107
D511
D512
D905
Q304
Q400
Q401
Q402
Q403
Q404
Q405
Q907
CN2
D302
D401
D402
D403
D411
D501
D502
D9
D505
D506
P1
Q16
CN1
J2
CN3
J3
S1
S2
A1
CN4
IC2
IC902
IC9
IC11
IC6
I
IC4
ELECTRIC UNIT X34-342x-xx/3762-71 (J76-0049-12)

KDC-MP5028/MP528
/W6031/W6031Y
17
JIHGF
1
2
3
4
5
6
7
Refer to the schematic diagram for the values of resistors
and capacitors.
C7
R7
C102
R115
R243
R245
R247
C111
H
1
C317
R20
R113
R114
R124
R125
C4
C104 C105
C106
C107
C108
C109
C318 C319
C
501
W115
W112
W113
C944
R938
R8
R108
R111
R112
R116
R118
R123
R126
R128
R131
R244
R246
R248 R249
R250
5
03
R908
C103
CP203
CP206 CP207
CP208
CP209
R1
R2
R6
R9
R10
R21
R101
R102
R103
R105
R109
R110
R117
R119
R120
R121
R122
R127
R130
R204
W124
R233
R239
R240
R241
R253
R506
R16
R270
R
271
W114
R31
R32
1
2
5
75
51
5026
76100
O
1
9
8
16
1
2
4
5
1
1
1
BU5V
SCL
SDA
1
5
12
4
1
5
C8 C11
C101
C201
L201
C12
C9
C959
C10
L3
C6
C3
C5
C14
W39
W28
W32
W38
W33
W41
W42
C17
W37
W30
W40
W46
C20
W45
L2
W31
C1
L1
56
10
45
8
78
14
IG
BE
CC
EEB
EE
CC
B
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB
EB EB EB EB EB
EB
EB EB
EB
BEBE
D105
D108
Q4
Q104
Q105
Q905
Q906
Q13
Q8
Q10
Q2
Q107
Q113
D3
D4
D5
D106
D107
Q6
Q102
Q106
Q108
Q109
Q110
Q111
Q112
D109
D110
D111
Q17
Q18
Q9
D101
D103
Q16
Q5
D1
Q7
Q1
J1
CN5
IC1
IC10
IC8
IC6
IC3
IC5
IC12
Ref. No. Address
IC1 5F
IC2 5D
IC3 4F
IC4 2D
IC5 3H
IC6 4F
IC8 7F
IC9 6C
IC10 6G
IC11 4D
IC12 6H
IC902 3E
Q1 2H
Q2 3H
Q4 3G
Q5 4G
Q6 4F
Q7 4H
Q8 3H
Q9 5G
Q10 4G
Q13 7F
Q16 4E
Ref. No. Address
Q17 4H
Q18 5H
Q102 2F
Q104 3F
Q105 3F
Q106 3F
Q107 3F
Q108 2F
Q109 3G
Q110 3G
Q111 3G
Q112 2G
Q113 4F
Q115 4D
Q116 4D
Q304 7E
Q400 4C
Q401 4B
Q402 4C
Q403 4C
Q905 3E
Q906 3F
Q907 4E
X34-342x-xx/3762-71

18
KDC-MP5028/MP528
/W6031/W6031Y
KLMNO
1
2
3
4
5
6
7
PC BOARD (FOIL SIDE VIEW)
C957
R937
R432
R920
R5
R22
R947
R945 R948
R
R951
R949
C202
C206
C207
C209
R210
R212
R224
R260
R227
R228
C210
C211
R313
R323
R325
R11
R426
C110
R3
R427
R429
C203
C204
C205 C208
C402
C403
C404
W104
R12
R30
R104
R107
R129
R202
R203
R207
R215
R229
43
21
R230
R232
R236
SDA R237
R254
R259
R341
R927 R935
C324
C19
R431
R952
W126
R266
L202
R4
R26
R27
R28 R29
R106
R201
R211
R242
R284
R261
R303
R305 R307
R308
R309
R310
R401
R428
R509
R520
R521
R522
R523
R14
R921
R924
R926
R950
R942
R941
R943
R282
R235
W102
R13
R15
R262
R263
R264
R265
R267
R279
R283
SCL
R213
R932
BE
BE
BE
BE
BE
BE
BE
BE
D2
Q103
D201
Q3
D309
Q114
D407
D503
D504 D507
D508
D509
D510
D901
D903
D306
D308
D516
D517
D10
Q12
D102
D104
Q14
Q15
Q101
Q11
D
4
IC7
ELECTRIC UNIT
X34-342x-xx/3762-71 (J76-0049-12)

KDC-MP5028/MP528
/W6031/W6031Y
19
TSRQP
1
2
3
4
5
6
7
Refer to the schematic diagram for the values of resistors and capacitors.
R321
4
5 R948
R946
1
R949
C312
L306
C305
C309
L304
R334
R335
C304
C307
R426
7
R429
C315 C316
C404
C429
R314
R422
R425
R435
C320
W123
C326
C311 C413
C414
C426C427
2
R301
R302
R304
R306
3
07
R308
3
09
R310
R320
R326
R401
R423
R424
R433
R434
R508 R509 R510
R511
R512
R513
R514
R515
R516
R517
R518
0
R942
R944
R943
C437
C438
W125
BE
BE
Q300
D304
D301
D310
D311
D405
D406
D408
D409
D410
D513
D514
D515
Q301
D305
D306
D307
D412
D413
D414
Ref. No. Address
IC7 6N
Q3 5M
Q11 5M
Q12 6L
Q14 4N
Q15 4N
Q101 3M
Q103 3N
Q114 4O
Q300 4Q
Q301 4Q
X34-342x-xx/3762-71

20
KDC-MP5028/MP528
/W6031/W6031Y
UVWXY
1
2
3
4
5
6
7
C30
C39
C50C57
C79
C91
C52
C32
C1 C2
C56
C34
C58
C31
C63
CP2
R41
R44
R42
R43
R57
R48
C25
C55
C64
C65
C66
C67
CP27
C24
C6
C5
CP13
X1
X2
C3 C4
C7
C8
R5 R6
R30
R56
R31
R3 R4
R8
R7
R11
R12
R1
R2
R9
R10
CP5
CP4
CP12
CP1 W20
W21
R150
R151
C101
1
1
2021
40
4
58
45
13
S1
S2
S3
S4
IC8
IC2
IC11
CD PLAYER UNIT X32-5740-0x (J76-0065-12)
PC BOARD (COMPONENT SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5740-0x
Ref. No. Address
IC2 4V
IC8 2V
IC11 4V