kenwood KDC-MP7028, KDC-MP728, KDC-MP8029, KDC-W7031, KDC-W7031Y Service Manual

CD RECEIVER

KDC-MP628

KDC-MP7028

KDC-MP728

KDC-MP8029

KDC-W7031/Y

SERVICE MANUAL

© 2005-3 PRINTED IN JAPAN B53-0266-00 (N) 1708

CD MECHANISM EXTENSION

CORD (24P) : W05-0934-00

Panel assy

Panel assy

KDC-MP628 (A64-3507-12)

KDC-MP7028 (A64-3665-02)

AN

AN

ATT

System

KDC-MP628

ATT

System

KDC-MP7028

SCRL

SCRL

SW

SW

SCAN

RDM

REP

F.

M.RDM

SCAN

RDM

REP

F.

M.RDM

VOL

C.S.

VOL

C.S.

AUD

SRC

AUD

SRC

FF

AUTO

AME

MENU

FF

AUTO AME MENU

Panel assy

Panel assy

KDC-MP728 (A64-3506-12)

KDC-MP8029 (A64-3513-12)

AN

AN

ATT

System

KDC-MP728

ATT

System

KDC-MP8029

SCRL

SCRL

SW

SW

SCAN

RDM

REP

F.

M.RDM

SCAN

RDM

REP

F.

M.RDM

VOL

C.S.

VOL

AUD

SRC

AUD

SRC

FF

AUTO

AME

MENU

FF

AUTO AME MENU

Panel assy

SPARE TDF PANEL

KDC-W7031/Y (A64-3508-12)

MAIN UNIT NAME TDF PARTS No.

TDF NAME

AN

KDC-MP628

Y33-2200-62

TDF-MP75D

ATT

System

KDC-W7031

SCRL

KDC-MP7028

Y33-2200-60

TDF-MP75DB

SW

KDC-MP728

Y33-2200-62

TDF-MP75D

VOL

SCAN

RDM

REP

F.

M.RDM

KDC-MP8029

Y33-2200-63

TDF-MP8029

PTY

AUD

TI AME MENU

SRC

KDC-W7031/Y

Y33-2200-64

TDF-W7031

FF

Mounting hardware assy

Plastic cabinet assy

* Screw set

* Remote controller assy (RC-527)

(J21-9716-03)

(A02-2732-03)

(N99-xxxx-xx)

(A70-2067-05)

Battery

(Not supplied)

* DC cord	* Escutcheon	* Antenna adaptor	Lever	* Tapping screw
(E30-xxxx-xx)	(B07-xxxx-xx)	(T90-0523-05)	(D10-4589-04) x2	(N09-xxxx-xx)

* DC cord	* Depends on the model. Refer to the parts list.
(E30-6412-05)		This product uses Lead Free solder.

KDC-MP628/MP7028/MP728

MP8029/W7031/W7031Y

BLOCK DIAGRAM

A8V

AUX IN

IC5

IC3

IC800

Q800,802

SPECTRUM

A1

Q402,403

A8V

A8V

IC500

ANALYZER

BU5V

D3.3V

D5V

A3.3V

REF+B

AM+B

FRONT-END

AGC

IC1

IC4

Q608-613 IC601-603

PRE OUT

A3.3V

A5V

IC300

(FRONT)

IC301,302

IC303

IC305

IC306-308

Q801

PRE

OP

PRE OUT

E-VOL/

MUTE

AMP

(REAR)

SVR REF

PRE OUT

E2PROM

SW5V

SOURCE SELECTOR

LPF

DSP

DAC

LPF

9V

(SW)

AUX

IC750

FM/AM

POWER

CDorMD

CH

IC

SP OUT(FL)

SP OUT(FR)

SP OUT(RL)

MPX

WININ

OFFSET

SP OUT(RR)

for

MUTE 0,1

RDS

MUTE A,C

FST

IC304

IC103

WIRED

LEVEL

D3.3V

MUTE

REMOTE

SHIFT

BU5V

IC200

OPEL DISP

DRIVER

P-CON

P CON

CN550

IC400

IC102

RST

Q208,209

RDS

MUTE A,C

RST STBY

MUTE 0,1,2

CD/MD

DECODER

ANT-CON

ANT CON

BU5V

(X16-252)

Q206

EXT AMP

EXT.AMP.CON

MD-DET

A8V

SERVO

IC104

Q207

DIMMER

DIMMER

D5V

INSTALLER

LINE

MEMORY

SYSTEM u-COM

Q202

ROM CORRECTION

ACC DET

ACC

SW5V

Q203,204

SURGE DET

IC100

Q205

RESET

B.U DET

BACK UP

J2

IC

BU5V

Q20,21

LX-BUS

BU5V

BU5V

PANEL

Q22,23

Q12

SW5V

SW5V

SW14V

IC5

IC7

IC8

Q7,8

Q100,101

IC10

BACK

RESET SW

LEVEL SHIFT

LEVEL SHIFT

SW5V

PANEL

A8V

A8V

UP

IC11

OPEN/

CLOSE

9V

KEY MATRIX

D3.3V

DET

IC4

M1

IC450

IC601-603

BU5V Q450

IC1

IC10

PANEL

MOTOR

DC/DC

DSI

FLASH ROM

D2.5V

MECHA

DRIVER

(5VPRE)

Q31,33

Q30,32

PANEL

S1

u-COM

SERVO

SERVO

MOTOR

ROTARY

+B

ENCODER

Q6

Q40,

SPECTRUM

SW3.3V

Q63,64

42,45

ANALYZER

IC2

PANEL

D5V

CD5V

SPECTRUM

5V

ANALYZER

Q9,10

Q11,13

IC60

Q50-52

DC/DC

SW16V

ILL+B

FL3.3V

FL+B

(VFD)

IC6

Q3-5

ED1

IC80

Q41,43,44

REMOTE

KEY ILLUMI

FL

FL DC

ILL+B

ILL+B

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

KDC-MP628/MP7028/MP728

MP8029/W7031/W7031Y

COMPONENTS DESCRIPTION

● ELECTRIC UNIT (X34-3xxx-xx)

Ref. No.

Application / Function

Operation / Condition

IC10

AUDIO8V REF POWER SUPPLY

1.27V output

IC60

SWITCHING REGULATOR CONTROLLER

VFD / Mechanism digital power supply.

OUT1 : VFD (4.7V), OUT2 : Mechanism digital (5V)

IC80

FL+B

VFD power supply (57V)

IC100

RESET IC

"L" when detection voltage is 3.6V or less

IC102

SYSTEM -COM

FM/AM tuner / Changer / CD mechanism / Panel / Volume / Tone control

IC103

MUTE DRIVER

Mute control

IC104

E2PROM

Installer memory

IC200

POWER CONTROL IC

Power control switching

IC300

E-VOL & SOURCE SELECTOR

Source / Volume / Tone control

IC400

RDS DECODER

IN1

IN2

PANEL MECHA

L

L

WAIT

IC450

PANEL MECHA MOTOR DRIVER

L

H

OPEN

H

L

CLOSE

H

H

STOP

IC451

G-ANALYZER

Analog gravity sensor

IC500

SPECTRUM ANALYZER BUFFER AMP & AGC

Spectrum analyzer buffer / Auto gain control

IC600

±9V AVR

5V pre-out power supply

IC601~603

5V PREOUT AMP

Buffer/Gained control

IC750

POWER IC

Front L/R and a rear L/R signal amplification

IC800

AUDIO3.3V REF SUPPLY / SVR6.8V REF SUPPLY

Supplying audio 3.3V reference voltage to E-VOL/LPF

Supplying SVR6.8V reference voltage to IC750 (POWER IC)

Q10,11

AUDIO8V AVR

When Q11 base is “H”, A8V is output

Q12

SW14V

When base is “H”, SW14V is output

Q20,21

B.U.5V AVR

When backup is “ON”, BU5V is output

Q22,23

SW5V

When Q23 base is “H”, SW5V is output

Q30,32

MOTOR+B AVR (PANEL MECHA)

When Q9 base is “H”, 7.5V MOTOR+B is output

Q31,33

SERVO+B AVR

When Q33 base is “H”, 8V SERVO+B is output

Q40,42,45

PANEL5V AVR

When Q42 base is “H”, PANEL5V is output

Q41,43,44

ILLUMINATION AVR

When Q43 base is “H”, 10.5V ILLUMI voltage is output

Q50~52

SW16W (SERGE PROTECTION)

When Q51 base is “H”, SW16V (13V) is output

Q60

VFD (4.7V) AVR SW

When base is “H”, VFD AVR is turned “OFF”

F SEL2 (BASE)

Q61

SWITCHING REGULATOR FREQUENCY

F SEL1

L

H

CONTROL SW (IC60)

L

400kHz

600kHz

(BASE)

H

650kHz

850kHz

3

KDC-MP628/MP7028/MP728

MP8029/W7031/W7031Y

COMPONENTS DESCRIPTION

	Ref. No.	Application / Function	Operation / Condition
	Q62	MECHA DIGITAL AVR SW	When base is “H”, MECHA DIGITAL AVR is turned “OFF”
	Q63	VFD (4.7V) AVR SWITCHING POWER DRIVER	Controlled by IC60 and Q61 determines frequency
	Q64	MECHA DIGITAL AVR POWER DRIVER	Controlled by IC60 (Frequency is fixed to 400kHz)
	Q80,81	VFD (57V) AVR SW	When Q81 base is “H”, VFD (57V) is output
	Q91	PANEL5V DISCHARGE SW	When base is “H”, PANEL5V is discharged
	Q100,101	PANEL DETECT SW	When Q100 base is “L”, panel is detected
	Q200,201	PREOUT MUTE DRIVER	When base is “L”, MUTE DRIVER is turned “ON”
	Q202	ACC DETECT SW	When base is “H”, ACC voltage is detected
	Q203,204	SERGE DETECT SW	When Q204 base is “H”, IC750 (POWER IC) is turned to standby.
	Q205	BU DETECT SW	When Q35 base is “H”, backup voltage is detected
	Q206	EXT AMP CONTROL BUFFER	Output buffer from IC102 ( -COM)
	Q207	SMALL LAMP DETECT SW	When base is “H”, small lamp is detected
	Q208,209	POWER ANTENNA SW	Q206 base is “H”, 14V POWER ANTENNA voltage is output
	Q402,403	AM+B SW	When Q403 base is “H”, AM+B is output
	Q450	DSI DRIVER	When base is “H”, DSI is turned “ON”. When base is “L”, DSI is
			turned “OFF”. When panel is off, DSI blinks.
	Q500	SPECTRUM ANALYZER AGC CONTROLLER	When excess input is made, feed-back is interrupted which slows down output.
	Q600~602	PRE-AMP +9V AVR	Q600 and Q602 function as differential amplifier.
			Q601 functions as a driver and +9.4V is supplied to op amp for pre-out.
	Q603~605	PRE-AMP -9V AVR	Q603 and Q605 function as differential amplifier.
			Q604 functions as a driver and –9.1V is supplied to op amp for pre-out.
	Q606,607	AUDIO 10.5V AVR	When Q606 base is “H”, 10.5V is output
	Q608~613	PREOUT MUTE SW	When base is “H”, pre-out is muted
	Q800,802	REF+B AVR	When Q800 base is “H”, 13V is output
	Q801	SVR6.8V REF SUPPLY AGC CONTROLLER	When backup voltage is down, feed-back is interrupted which slows down output.

● SWITCH UNIT (X16-2950-1x / X16-3122-72)

Ref. No.	Application / Function	Operation / Condition
IC1	ROM IC / FLASH ROM IC	Display image data storage
IC2	SPECTRUM ANALYZER	6-ch band pass filter
IC4	PANEL -COM
IC5	RESET IC	Functions when panel is attached
IC6	REMOTE CONTROL
IC7	LEVEL SHIFT	Conversion from 5V level to 3.3V
IC8	LEVEL SHIFT	Conversion from 3.3V level to 5V
IC9	BUFFER	Functions when controlling fruorescent indicator tube (ED1)
IC10	2.5V REGULATOR	For 2.5V power supply
IC11	3.3V REGULATOR	For 3.3V power supply
Q1	TRIANGLE GREEN LED SW	Lights up when base is “H”

4

KDC-MP628/MP7028/MP728

MP8029/W7031/W7031Y

COMPONENTS DESCRIPTION

Ref. No.	Application / Function	Operation / Condition
Q2	TRIANGLE RED LED SW	Lights up when base is “H”
Q3	BLUE LED SW	Lights up when base is “H”
Q4	GREEN LED SW	Lights up when base is “H”
Q5	RED LED SW	Lights up when base is “H”
Q6	SW3.3V SW	When base is “L”, SW3.3V is supplied to IC1 and IC3
Q7,8	SW5V SW	When Q8 base is “H”, SW5V is supplied to IC2 and IC6
Q9,10	FL3.3V SW	When Q9 base is “H”, FL+3.3V (VDD1) is supplied to fruorescent indicator tube
Q12	FL BLK SW	When base is “H”, fruorescent indicator tube (ED1) lights up
Q11,13	FL+B SW	When Q11 base is “H”, FL+B (VDD2) is supplied to fruorescent indicator tube

● CD PLAYER UNIT (X32-5740-0x)

Ref. No.	Application / Function	Operation / Condition
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	-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

5

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

● SYSTEM MICROCOMPUTER : IC102 (X34- : ELECTRIC UNIT)

Pin No.			Pin Name			I/O	Function	Processing Operation
1	VREF					-	Analog reference voltage
2	AVCC					-
3	LX DATA S					I	Data from slave unit
4	LX DATA M					O	Data to slave unit
5	LX CLK					I/O	LX-BUS clock
6	WIRED REMO					I	External display remoter controller
7	LX MUTE					I	Mute request from slave unit	H : MUTE ON, L : MUTE OFF
8	AUD SDA					O	E-VOL data	SPI communication
9	AUD SEL					O	E-VOL control	SPI communication
10	AUD SCL					O	E-VOL clock	SPI communication
11						O	DAC reset	L : DAC RESET
			DAC RST
12	NC					-	Not used
13	BYTE					-	GND
14	CNVSS					-
15	XCIN					I	Clock	32,768kHz
16	XCOUT					I	Clock	32,768kHz
17	RESET					I	Reset
18	XOUT					-	Clock	12MHz
19	VSS					-	GND
20	XIN					-	Clock	12MHz
21	VCC1					-
22	NMI					I
23	PANEL DET					I	Panel detection	H : No panel, L : Panel exists
24	RDS CLK					I	RDS decoder clock
25	LX REQ S					I	Communication request from slave unit
26	PON AM					I/O	AM power supply control	AM in operation : H, AM not in operation : HI-Z
27	LX REQ M					O	Communication request to slave unit
28	TUN IFC OUT					I	Front-end IFC out	H : Station exists, L : No station
29	RDS AFS L					I/O	Time constant switching when noise detected	Refer to Truth Value Table (RDS AFS)
30	RDS AFS M					I/O	Time constant switching when noise detected	Refer to Truth Value Table (RDS AFS)
31	RDS QUAL					I	RDS decoder QUAL
32	RDS DATA					I	RDS decoder DATA
33	PWIC BEEP					O	Beep
34	TUN SCL					I/O	Front-end I2C clock	MAX 400kHz
35	TUN SDA					I/O	Front-end I2C data
36	SYS DATA					O	Inside-panel communication data	MAX 500kbps
37	VCC1					-
38	PAN DATA					I	Inside-panel communication data	MAX 500kbps
39	VSS					-
40	SYS REQ					O	Communication request from system -com
41	PAN REQ					I	Communication request from panel
42	SDA					I/O	E2PROM I2C data	MAX 100kHz

6

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

	Pin No.		Pin Name				I/O	Function	Processing Operation
	43	SCL					I/O	E2PROM I2C clock	MAX 100kHz
	44	PON PANEL					I/O	Panel 5V control	ON : H (Momentary power down/Panel detached)
									11 Minutes after ACC OFF : Hi-Z
	45	DSI					I/O	DSI control
	46~49	NC					-	Not used.
	50	PM MOT1					O	Panel motor control 1	Refer to Truth Value Table (PANEL MOTOR)
	51	PM MOT2					O	Panel motor control 2	Refer to Truth Value Table (PANEL MOTOR)
	52	EPM					I	Flash EPM
	53	PM OPEN					I	Panel full open detection	Refer to Truth Value Table (PANEL MECHA)
	54~56	NC					-	Not used
	57	P5V DIS					I/O	Panel 5V discharge control	H : Discharge, Other : Hi-Z
	58	PM CLOSE					I	Panel mechanism close detection	Refer to Truth Value Table (PANEL MECHA)
	59	ROMCOR DET					I	E2PROM write request	H : Write
	60	PM DET					I	Panel mechanism detection	H : Function check in progress
	61	SC CON					O	Inside-panel communication (Chip enable when flash)	POWER OFF, ACC OFF : L
	62	NC					-	Not used
	63	TUN TYPE1					I	Destination setting 1	TUN TYPE1 : L, TUN TYPE2 : L
	64	TUN TYPE2					I	Destination setting 2	TUN TYPE1 : L, TUN TYPE2 : L
	65,66	NC					-	Not used
	67	CD DISC12 SW					I	12cm CD detection
	68	CD LOS SW					I	CD loading detection
	69	CD MUTE R					I	CD mute (Rch) request	L : Rch mute request
	70	CD MUTE L					I	CD mute (Lch) request	L : Lch mute request
	71	CD MRST					O	CD mechanism microcomputer reset	L : Reset, H : Normal
									L : Mechanism microcomputer stop,
	72	CD MSTOP					O	CD mechanism microcomputer stop
									H : Mechanism microcomputer in operation
	73	NC					-	Not used
	74	CD LOE LIM SW					I	CD detection (Chucking SW)	H : Loading complete, L : No disc
	75	CD LOEJ					I/O	CD motor control	Refer to Truth Value Table (CD MOTOR / CD LOEJ)
	76	CD MOTOR					O	CD motor control	Refer to Truth Value Table (CD MOTOR / CD LOEJ)
	77	PON ILLUMI					I/O	Key illumination power supply control	ON : H, OFF : Hi-Z
	78	PON CD					I/O	CD/WMA power supply control	At time of CD source: H, Other than CD : Hi-Z
	79	PON					O	Power supply control	POWER ON : H, POWER OFF : L
	80	PON FL+B					O	Fruorescent indicator tube bias power supply control	POWER ON : H, POWER OFF or display black out : L
	81						I/O	Fruorescent indicator tube filament power supply control	POWER ON : L, POWER OFF or display black out : Hi-Z
			PON FDC
	82	F SEL1					O	SW-Reg frequency switching
	83	F SEL2					O	SW-Reg frequency switching
	84	DIAG					I/O	P-CON excess current surveillance
	85	VCC2					-
	86	EXT AMP CON					I/O	External amplifier control
	87	VSS					-
	88~91	TYPE 1~TYPE4					I	Destination switching
	92	NC					-	Not used

7

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

Pin Name

I/O

Function

Processing Operation

93

OEM DISP DATA

I/O

External display DATA

External display

94

OEM DISP CLK

I/O

External display CLK

External display

95

OEM DISP CE

I/O

External display control request

External display

96

NC

-

Not used.

97

P CON

O

External amplifier control

POWER ON : H, POWER OFF or STANDBY : L

98

NC

-

Not used.

99

ANT CONT

O

Power antenna control

TUNER ON : H

100

I

Dimmer illumination detection

L : ON, H : OFF

ILLUMI DET

101

BU DET

I

Momentary power down detection

BU : L, No BU or momentary power down : H

102

I

ACC power supply detection

ACC ON : L, ACC OFF : H

ACC DET

103

(PWIC SVR)

O

SVR discharge circuit

H : 5 seconds after POWER OFF and momentary

power down, Then : L

L : When STANDBY source or momentary power

104

PWIC MUTE

O

Power IC mute

down, L : When TEL MUTE

105

PWIC STBY

O

Power IC standby control

POWER ON : H, POWER OFF : L

106

LX CON

O

Start up request to slave unit

H : SLAVE UNIT ON, L : SLAVE UNIT OFF

L : When “MUTE PRE R” is “L” or at momentary

107

MUTE PRE R

O

Rch pre-out mute

power down, H : Only when 2-zone

L : When “MUTE PRE L” is “L” or at momentary power

108

CD MUTE PRE L

O

Lch pre-out mute

down, H : Only when 2-zone

109

MUTE 0

O

E-VOL front mute

ON : L, OFF : H

110

MUTE 1

O

E-VOL rear mute

ON : L, OFF : H

111

O

E-VOL sub mute

ON : L, OFF : H

MUTE 2

112

MUTE A

O

E-VOL spctrum analyzer mute

ON : L, OFF : H

113

DSP MUTE

I/O

DSP mute

ON : L, OFF : Hi-Z

114

O

E-VOL AFS mute

ON : L, OFF : H

MUTE C

115

DSP INIT RST

O

DSP initial reset

L : Reset, H : Reset release

116

O

DSP system reset

L : Reset, H : Reset release

DSP S RST

117

O

Request to DSP

L : Request

DSP RQ

118

DSP CS

O

DSP chip select

L : Select

119

NC (GTEST)

O

Not used

120

LINE MUTE

I

Line mute detect

TEL MUTE : 1V or less,

NAVI MUTE : 1V or less, 2.5V or more

121

MD DET

I

For a terminal of MD receiver

122

PWIC DC DET

I

DC offset error detect

123

LX RST

O

Hard reset to slave unit

H : Reset, L : Normal

124

G Y OUT

I

Analog Y gravity detect

125

G X OUT

I

Analog X gravity detect

126

RDS NOISE

I

FM noise detection

127

AVSS

-

128

TUN SMETER

I

S-meter input

8

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

Truth Value Table

CD MOTOR / CD LOEJ
	CD MOTOR	CD LOEJ
Standby	L	Hi-Z
Eject	H	H
Load	H	L
Brake	H	Hi-Z
Use prohibited	L	L
PANEL MOTOR
	OPEN	CLOSE	STOP	WAIT
PM MOT1	L	H	H	L
PM MOT2	H	L	H	L

PANEL MECHA

	FULL OPEN		FULL CLOSE			OTHER
PM OPEN	H		L			L
PM CLOSE	H		L			H
RDS AFS
	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

● PANEL MICROCOMPUTER : IC4 (X16- : SWITCH UNIT)

Pin No.

Pin Name

I/O

Function

Processing Operation

1~7

D14~D8

I/O

Data input/output

8

3.3VDD

-

3.3V

9

VSS

-

Connect to GND

10~17

D7~D0

I/O

Data input/output

18

FLGCP1

O

FL harmony control

Lighting timing (brightness harmony) is controlled

with pulse interval. GCP=FLGCP1+FLGCP2

19

NC

-

Not used

20

SYS REQ

I

System -com communication request

H : Data communication

21

SC CON

I

System -com communication/Panel operation control

H : Panel operation

22

FL BK

O

Fruorescent indicator blackout control

H : Fruorescent indicator turned on, L : turned off

23

2.5VDD

-

2.5V

24

VSS

-

Connect to GND

25

NC

-

Not used

26,27

KS1, KS2

I/O

Key scan

L : Output, Hi-Z : Switching

28,29

TD0, TD1

-

Not used

30,31

KS3, KS4

I/O

Key scan

L : Output, Hi-Z : Switching

32

TRST

-

Pull down

1-pulse/2-click, 15-pulse/360°

33

ROTARY CCW

I

Rotary A

1-pulse/2-click, 15-pulse/360°

34

ROTARY CW

I

Rotary B

35,36

TMS, TCM

-

Not used

37

3.3VDD

-

3.3V

38

EVSS

-

Connect to GND

39

I/O

Key scan

L : Output, Hi-Z : Switching

KS5

40~42

KR1, KR2,

KR3

I

Key return

43

FLGCP2

O

Fruorescent indicator harmony control

Lighting timing (brightness harmony) is controlled

with pulse interval. GCP=FLGCP1+FLGCP2

44

PAN REQ

O

Panel communication request

H : Data communication in progress

9

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

Pin Name

I/O

Function

Processing Operation

Data reception from system -com

45

SYS DATA

I

UART communication 500kbps

46

PAN DATA

O

Data transmission from panel

UART communication 500kbps

47

FL CLK

O

Fruorescent indicator serial communication reference clock

Reference clock 4.125MHz

48

KR4 INT

I

Key return

Interruption possible

49

FL DATA1

O

Fruorescent indicator serial control data

50

I

Serial synchronization clock

Synchronized to Fruorescent indicator CLK

CLK IN3

51

FL EL

O

Fruorescent indicator skip shift control

H or Hi-Z : Odd number skip, L : Even number skip

52

O

Fruorescent indicator serial control data

FL DATA2

53

I

Serial synchronization clock

Synchronized to Fruorescent indicator CLK

CLK IN2

54

FL LAT

O

Fruorescent indicator latch control

55

O

Fruorescent indicator serial control data

FL DATA3

56

3.3VDD

-

3.3V

57,58

X2,X1

I

Clock

6.6MHz

59

CVSS

-

Connect to GND

60

CKSEL

-

Connect to GND

61

PSEL

-

Connect to VDD

62

2.5VDD

-

2.5V

63

VSS

-

Connect to GND

64

MODE0

-

Connect to GND

65

MODE1

-

Pull down

66

PAN RST

I

Input from reset IC

67

AVDD1

I

D/A conversion reference voltage

Connect to D3.3V

68,69

NC

-

Pull down

70,71

AVSS1,AVSS0

-

D/A conversion reference GND

72

AVDD0

-

A/D conversion reference voltage

Connect to D3.3V

73

WAVE IN

I

Voice input

AD read

74

F01

I

BPF (63Hz)

AD read

75

F02

I

BPF (150Hz)

AD read

76

F03

I

BPF (330Hz)

AD read

77

F04

I

BPF (1kHz)

AD read

78

F05

I

BPF (3.3kHz)

AD read

79

F06

I

BPF (10kHz)

AD read

80

NC

-

Pull down

81

2.5VDD

-

2.5V

82

VSS

-

Connect to GND

83

NC

-

Not used

84

TYPE

I

Whether there is customizing or not designation setting

H : Flash ROM (This model), L : Mask ROM (Other model)

85

NC (VREFCON)

O

Not used

86

I

Remote controller signal

Detection with pulse width

REMO

87

PON FL+B

O

Fruorescent indicator bias power supply switch

H : ON, L : OFF

88

PON FLVDD

I/O

Fruorescent indicator logic section power supply switch

H : ON, Hi-Z : OFF

89

PON 5V

I/O

5V power supply switch

Remote controller IC / Space analyzer IC power

supply H : ON, Hi-Z : OFF

10

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No.

Pin Name

I/O

Function

Processing Operation

90~93

NC

-

Not used

94

I/O

Memory data write permission

L : Write, H : Wait SW3.3V start up : Hi-Z

WE

95

OE

I/O

Memory data transmission permission

L : Data transmission, H : Wait SW3.3V start up : Hi-Z

96,97

NC

-

Not used

98

3.3VDD

-

3.3V

99

VSS

-

Connect to GND

100

FROMCHK

-

Not used

101

I/O

Memory operation permission

L : Operation, H : Wait SW3.3V start up : Hi-Z

CE

102~104

NC

-

Not used

105

ROMCOR SCL

-

Not used

106

ROMCOR SDA

-

Not used

107

NC (SEL E2P)

-

Not used

108

PON TRI GREEN

I/O

Triangle green light ON switch

H : Light ON, Hi-Z : Light OFF, When blackout : Light ON

109

PON TRI RED

I/O

Triangle red light ON switch

H : Light ON, Hi-Z : Light OFF

110

PON BLUE

I/O

Blue sub-illumination light ON switch

H : Light ON, Hi-Z : Light OFF

111

SA RST

O

Spectrum analyzer IC reset

H : Reset (1.8V or higher), L : Normal

112

3.3VDD

-

3.3V

113

EVSS

-

Connect to GND

114

PON GREEN

I/O

Green key illumination light ON switch

H : Light ON, Hi-Z : Light OFF

115

PON RED

I/O

Red illumination light ON switch

H : Light ON, Hi-Z : Light OFF

116

PON SW3V

I/O

Rotary encoder power supply

L : ON, Hi-Z : OFF

117

NC

O

Not used

118~123

A21~A16

O

Address output

124

2.5VDD

-

2.5V

125

VSS

-

Connect to GND

126~133

A15~A8

O

Address output

134

3.3VDD

-

3.3V

135

EVSS

-

Connect to GND

136~142

A7~A1

O

Address output

143

NC

-

Not used

144

D15

I/O

Data input/output

11

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

● MECHANISM MICROCOMPUTER : IC4 (X32- : CD PLAYER UNIT)

	Pin No.	Pin Name	I/O	Application	Processing Operation	Remarks
					Description
	1	NC	O	Not used.	Low-fixed
	2	E2P_SCL	I/O	Rom correction E2P I2C clock
	3~5	NC	O	Not used.	Low-fixed
	6	VDD	-	5V electric potential
	7	GND	-	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
	43	RD	O	Multiplex RD signal		3.3V driven

* DXM-6580W : X92-5080-00, DXM-6590W : X92-5190-00

12

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

MICROCOMPUTER’S TERMINAL DESCRIPTION

	Pin No.	Pin Name	I/O	Application	Processing Operation	Remarks
					Description
	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 -com I2C data		Flash write port (SI0)
	95	NC	O	Not used.	Low-fixed	Flash write port (SO0)
	96	SYS_SCL	I/O	System -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

13

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

TEST MODE

● How to enter the test mode

In order to enter the test mode, reset the unit while simultaneously 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 less than 1 second push.

•Auxiliary (AUX) is ON.

•DISPLAY TYPE is TYPE D.

•The Multi-function Key System are source dependent systems. (TUNER → Preset, CD / CD-CH → Scan, etc.)

•Display of TUNER sources will be as follows :

European Models : Upper Display=PS/frequency, Middle Display=spectrum analyzer, Lower Display=multi-function Other Models : Upper Display=SNPS, Middle Display =spectrum analyzer, Lower Display=multi-function

•CD source display will be as follows :

All Models : Upper Display=P-TIME, Middle Display= spectrum analyzer, Lower Display=multi-function

•SWPRE is SUB WOOFER.

● 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 terminal 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 to TUNER

When in TUNER mode, if any of the following displays appear, there is an abnormality with the front end.

•“TNE2P_NG” : At production site, the E2PROM is still with the default (unspecified) value, due to the fact that the frontend 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 functions move in the following cycle :

AUTO → forced WIDE → forced MIDDLE → force NARROW

→ AUTO

The initial condition is AUTO and the displays below will appear.

•AUTO : FMA

•Forced MIDDLE : FMM

•Forced WIDE : FMW

•Forced NARROW : FMN

● CD receiver test mode specifications

•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 1 track.

•When a CD is used as a source, by pressing [1] key for less than 1 second, a jump to the Track No. 28 is made.

•When a CD is used as a source, by pressing [2] key for less than 1 second, a jump to the Track No. 14 is made.

•When a CD is used as a source, by pressing [3] key for less than 1 second, a display of CD mechanism model name and its version is made. When the pressing of [3] key for less than 1 second is made for the second time, the normal display is resumed. (Time code display)

•When a CD is used as a source, by pressing [6] key for less than 1 second, a jump to the Track No. 15 is made. At the same time, the volume value is set to 25 (2V PRE) and 27 (5V PRE).

14

KDC-MP628/MP7028/MP728 MP8029/W7031/W7031Y

TEST MODE

● Audio adjust mode

Model with no DSP

•By pressing [AUD] key for less than 1 second, the audio adjustment mode can be entered.

•Using the remote controller [ ] key and [AUD] key, the audio adjustment mode can be entered.

•Adjustment items of both the AUDIO FUNCTION MODE and SETUP MODE are included.

•The initial item will be Fader, which is followed by : Balance

→ Bass Level → Middle Level → Treble Level → (Sub Woofer Level) → HPF Front → HPF Rear → LPF Sub Woofer (Af-

ter this, it will be arbitrary)

•With the remote controller, continuous forwarding is prohibited.

•Using the VOL knob, the Fader can be adjusted in 3 steps : R15 ↔ 0 ↔ F15 (The initial value is 0)

•Using the VOL knob, the Balance can be adjusted in 3 steps : L15 ↔ 0 ↔ R15 (The initial value is 0)

•Using the VOL knob, the Bass / Middle / Treble Level can be adjusted in 3 steps : –8 ↔ 0 ↔ +8 (The initial value is 0)

•Using the VOL knob, the Sub Woofer Level can be adjusted in 3 steps : –15 ↔ 0 ↔ +15 (The initial value is 0)

•Using the VOL knob, the Volume Offset can be adjusted in 2 steps : –8 ↔ 0 (The initial value is 0)

•Using the VOL knob, the HPF Front / Rear can be adjusted in 2 steps : Through ↔ 180Hz (or 220Hz) (The initial value

is Through)

•Using the VOL knob, the LPF Sub Woofer can be adjusted in 2 steps : 60Hz (or 50Hz) ↔ Through (The initial value is

Through)

•Using the VOL knob, the Sub Woofer Phase can be adjusted in 2 steps : Reverse ↔ Normal (The initial value is

Normal)

•Using the VOL knob, the Volume Offset can be adjusted in 2 steps : –8 ↔ 0 (The initial value is 0)

•Using the VOL knob, the Loudness ON/OFF can be adjusted in 2 steps : OFF ↔ ON (The initial value is OFF)

•2-Zone ON/OFF can be adjusted in 2 steps : OFF ↔ ON (The initial value is OFF)

•Bass f / Bass Q / Bass EXT / Middle f / Middle Q / Treble f do no appear in audio adjustments.

● MENU items

•Push the [] (NEXT) key for at least 1 second to enter the MENU.

•The [DNPP/SBF] and [DIRECT] keys on the remote controller can also be used to enter the MENU.

•With the remote controller, continuous forwarding is prohibited.

•When a CD is used as a source, the default item will be the ACD F/W Version.

● 2-ZONE (Dual Zone) items

•When using sources other than the STANDBY source, using a short-press on [AUTO] or [TI] key, 2-ZONE ON/OFF is achieved.

● Backup current measurement

When reset in Acc OFF (Back Up ON) condition, MUTE terminal 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 communication line will be switched.)

CE

DATA

CLK

500msec 500msec 500msec

● G sensor display items

When source is STANDBY, by short-pressing [ATT] key, the display is switched to analogy meter display, in which vertical G and horizontal G are displayed.

15