Kenwood KDC-MPV6022, KDC-MPV622, KDC-MPV7023 Service Manual

KDC-MPV7023

OFF

NF

-

+

DAB

F.SEL

M.RDM

REPSCAN

RDM

AUD

MENU

NAME.S
DISP

AUTO
GSM

Front glass
(B10-4308-01 : KDC-MPV7023)

Panel assy
(A64-2831-02 : KDC-MPV7023)

KDC-MPV6022

OFF

NF

-

+

DAB

F.SEL

M.RDM

REPSCAN

RDM

AUD

C.S.
MENU

NAME.S
DISP

AUTO
AME

Front glass
(B10-4327-01 : KDC-MPV622)
(B10-4306-01 : KDC-MPV6022)

Panel assy
(A64-2826-02 : KDC-MPV622 )
(A64-2854-02 : KDC-MPV6022)

Escutcheon
(B07-3022-02)

Plastic cabinet assy
(A02-1486-13)

Mounting hardware assy
(J21-9716-03)

Screw set
(N99-1730-15)

Lever
(D10-4589-04)

Depends on model. Refer to the parts list.

DC cord
(E30-4940-05)

Remote controller assy(RC-505)
(A70-2040-05)

Screw set
(N99-1719-15)

Not supplied

Remote controller assy(RC-410)
(A70-2026-05)

•

CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual.

Please refer to service manual for X92-4450-0X (B51-7889-00).

CD mechanism extension cord (24PIN) : W05-0934-00

©

2003-1 PRINTED IN JAPAN

B53-0025-00 (N)1724

CD RECEIVER

KDC-MPV6022
KDC-MPV622
KDC-MPV7023

SERVICE MANUAL

KDC-MPV6022/622/7023

2

BLOCK DIAGRAM

BUFFER

Q101

RDS
DECODER

IC7

Q201

BUFFER

EEPROM

IC10

IC1

(V-ILL ONLY)

DA CONVERTER

IC3

IC2

REMOCON

RESET SW

ENCODER

ROTARY

S24

WITH

LCD DRIVER
KEY MATRIX

IC1

LCD

PANEL DET

S1

EJECT SW

S1

EJECT ILLUMI

DSI

u-COM

IC2

MPX

E-VOL

&

EXT AMP

DIMMER

ACC DET

TEL MUTE

B.U DET

PRE MUTE

PRE MUTE

PRE MUTE

DRIVER

MUTE

IC6

POWER
IC

IC4

THERMAL
PROTECT

PRE OUT
(REAR/NF)

EXT.AMP.CON

DIMMER

ACC

TEL MUTE

BACK UP

AUX IN

(REAR) 3PRE

PRE OUT

(FRONT)

PRE OUT

SP OUT

SURGE DET

SW REG

CD MECHA+B

SERVOSERVO+B

SW 14V

Q21

IC9

OPEL DISP I/F

WIRED REMO/

SUPPLY
IC

IC3

POWER

ANT DET
P CON

RESET

IC8

SW 5V

Q4

PANEL 5V

Q152

SW5V

S-METER

AUDIO OUT

IFC OUT

PLL-DATA

PLL-CLK

SW5V

AM+B

A8V

SW3

SW2

SW1

MS CLK

MS DATA

M MUTE L

SW4

M MUTE R

LO/EJ

M STOP

MOSW

M RST

SERVO+B
A8V
BU5V
CD MECHA+B

DATA C

CH MUTE

CH RST

REQ H

REQ C

CH CLK

CH-CON

DATA H

BUCK UP

NOISE

QUAL

S-METER

R DATA

R CLK

FM
AM
MP IN
LEVEL
CD

QUAL

AFS

CH

SW5V

SW5V

BU5V

PANEL DET

EJECT

DSI

L CLK

L DATAS

L CE

L DATAL

VOL A

VOL B

REMO

V DATA

V CLK

O-CE

O-DATA

O-CLK

PRE MUTE

MUTE

P-MUTE

EXT.AMP.CON

DIMMER

PHONE

ACC DET

B.U DET

BEEP

PS1-0

PS1-1
PS1-2
PS2-0
PS2-2

RST

FREE

REAR

FRONT

BU5V

BUCK UP

A8V

AUX

SW5V

BACK UP

AM+B
FM+B

ILLUMI

A8V

BU5V

BU5V

BU5V

TUNER

CD

EX.CH

SWITCH UNIT (X16- )

DAUGHTER UNIT

(X89- )

KDC-MPV6022/622/7023

3

COMPONENTS DESCRIPTION

● CD PLAYER UNIT (X32-5410-00)

Ref.No.

Component Name Application/Functions Operation/Condition/Compatibility

IC1 TAR5S33 3.3V AVR For audio circuit(3.3V AVR)
IC2 NJM4580V Low pass filter 2nd low pass filter for audio signals
IC4 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, disc

loading and eject operation.
IC6 L88MS33T AVR 3.3V AVR
IC7 703033BYGC-J02 MI-COM Mechanism control microcomputer.
IC8 TC74HCT7007AF Level shifter Level shift for voltage 3.3V to 5.0V.

IC11 UPD63760GJ CD signal processor Generation of RF signal based on the signals from the APC circuit and

pickup,Focusing, tracking, sled and spindle servo processing. Automatic

adjustment (focusing, tracking, gain, offset and balance) operations.

Digital signal processing (DSP, PLL, sub-codes, CIRC error correction,

audio data Interpol ration) operations, and MP3 decoder.

IC13 MSM51V4265EP70 DRAM Data buffer

Q1 DTA143XUA A.8V SW When Q5 gose "ON", Q1 is ON
Q2 DTC124EUA 3.3V AVR SW When P ON signal gose "ON" Q2 is ON
Q3 DTC124EUA A.8V SW When P ON signal gose "ON" Q4 is ON
Q4 MCH6101 APC LD power control
Q5 DTA143EUA D.5V SW When P ON signal gose "L" Q5 is ON
D1 DAN202U Protection diode Laser diode protection

● ELECTRIC UNIT (X25-9570-12/13/21)

Ref.No.

Component Name Application/Functions Operation/Condition/Compatibility

IC1 UPD703030GC012 System microcomputer Control for TUNER unit, CD mechanism, volume & tone, LCD driver and

external CD changer unit
IC2 TDA7411 Electronic volume & N.C.MPX Control for source selector, volume & tone, and FM multiplex detector.
IC3 BA4911-V4 Power supply IC

Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and ANT-con).

IC4 TA8273H Audio power amp IC

Amplifier for audio signal to derive for 4channel speakers (50W maximum

for each channel).
IC6 HD74HC27FP Muting control IC Control for timing for mute.
IC8 PST3436UL Reset IC When detection voltage goes below 3.5V or less Reset IC output change

to "L" signal.
IC9 SI-8050JD Switching regulator Power supply for MP3 CD mecanism unit.

Q1 2SC4081 Serge detection When backup voltage become more than 24V output is "L" (momentary

power down) / When backup voltage become less than 24V output is "H".

Q2 2SC4081 Backup detection When BU voltage supplied output is "L" / When BU voltage not supplied

or momentary power down is detected output is "H".

Q3 2SC4081 ACC detection When ACC voltage supplied output is "L".

Q4 2SA1036K SW 5V When base voltage is "L" Q4 is ON.
Q21 2SD2375 AVR Servo regulator.
Q22 UMC2N SW Servo SW.
Q23 UMC2N IC control Power supply IC controller.
Q31 UN5213 Dimmer control When base voltage is "H" dimmer is ON.
Q41 2SC4081 SW Switching regulator control SW.

SW1 OUT

1.5-3.0V Audio ON

3.5-5.0V Audio, P-con ON

7.0V- Audio, P-con, P-ant ON
SW2

2.0-3.0V Illumination, FM ON

4.0V- Illumination, AM ON