KENWOOD KDCZ828 - Service Manual Immediate Download

B51-7790-00 (N) 1737

CDGMD-CH CONTROL MP3 CD RECEIVER

KDC-Z828

Z828

SERVICE MANUAL

SIZE AAA BATTERY

(Not supplied)

SRC

PWR

OFF

47Wx4

S.A

FM

AM

DISC

CD MD-CH CONTROL MP3 CD RECEIVER

EX

KDC-Z828

AUD

4.5V

PREOUT

LOUD DISP

SCAN

RDM

REP

M.RDM

AUTO

AME

MENU

NAME.S

NF

COMPACT

DIGITAL AUDIO

2ZONE

DAB

TEXT

SRC

PWR

OFF

47Wx4

S.A

FM

AM

DISC

CD MD-CH CONTROL MP3 CD RECEIVER

EX

Z828

AUD

4.5V

PREOUT

LOUD DISP

SCAN

RDM

REP

M.RDM

AUTO

AME

MENU

NAME.S

NF

COMPACT

DIGITAL AUDIO

2ZONE

DAB

TEXT

Plastic cabinet assy

(A02-2711-08)

Panel assy

(A64-2473-08)

Front glass assy

(B10-4201-08)

Escutcheon

(B07-3038-08)

Panel assy

(A64-2625-08)

Front glass assy

(B10-4200-08)

Escutcheon

(B07-3048-08)

Remote controller assy

(A70-0894-05)

Mounting hardware assy

(J21-9585-18)

DC cord assy

(E30-6021-08)

Lever

(D10-4364-08)x2

Stay

(J54-0606-04)

Screw set

(N99-1700-05)

Screw set

(N99-1716-08)

KDC-Z828

Z828

RC-520

2

AM

FM

220mV

490mV

FM

: 400Hz 75kHzDEV 60dBuV

AM

: 400Hz 30%MOD 74dBuV

: 1kHz 0dB

CD

: 1kHz 0dB

CD-CH

: 1kHz 1200mV INPUT

AUX

VOL MAX

CD-CH

CD/CD-CH

CD

: 1150mV

AUX-IN

1150mV

: 830mV

FM

: 250mV

: 1800mV

AUX

CD-CH

: 1800mV

CD

AM

CD-CH

CD

AUX

: 1800mV

AM

FM

: 250mV

: 830mV

CD-CH

AUX

CD

: 900mV

FM

AM

: 415mV

: 125mV

MUX

REAR

FRONT

REAR

FRONT

NF

REAR

FRONT

: 4500mV

: 650mV

: 2100mV

CD-CH

AUX

AM

CD

FM

FRONT

: 4500mV

CD

AUX

CD-CH

REAR

AM

FM

: 2100mV

: 650mV

: 4500mV

AUX

AM

CD-CH

CD

: 650mV

N/F

FM

: 2100mV

BU 5V

SW 5V

PNL 5V

AUDIO 8V

AUDIO 11V

SERVO 7.5V

VFD 14V

MP3 5V

NF

AC OUT

EPROM

TUNER

SGS-IC '01 ST

TDA7407

E-VOL

UPD703033AGC

MAIN u-COM

ANT

IC300

IC900

HD74HC27FP

MUTE IC

IC3

SW-OP AMP

BA3129F

IC201

IC200

BA3121F

GND-ISO

TDA7401D

H.P.F

IC301

S-80842

RST

IC2

ANNP

PANEL u-COM

UPD703033AGC

IC900

LEVEL SIFT

TC74HC4050AFT

MATRIX

KEY

RS-171

REMO

MSM531622F-

ROM

TS

IC961

IC930

IC950

VFD

BA3830F

SA-IC

IC940

NJM4565MD

IC202

SA MIX AMP

TA8263BH

POWER IC

IC500

IC310

NJM4565MD

IC312

NJM4565MD

IC311

BU 5V

Q614

Q1

SW 5V

Q612

PNL 5V

Q622

AUDIO 8V

SW 14V

Q624

AUDIO 11V

Q633

Q624

SW 14V

CD 7.5V

Q620

SW 14V

Q624

VFD 14V

Q618

SW 14V

MP3 5V

Q631

Q624

BU 14V

AUX-IN

CD-CH

CD

KDC-Z828,Z828

2

BLOCK

DIAGRAM

KDC-Z828,Z828

3

G SUB-CIRCUIT UNIT (X13-9930-00)

COMPONENTS DESCRIPTION

Ref.No.

Element/Function

Operation/Condition

IC1

SYS u-COM

IC2

RESET

System reset

IC3

GATE IC

Gate IC for muting

IC200 GND-ISO

GND-ISO for CD-CH

IC201 SW-OP

CD/CD-CH input switching

IC202 Buff

SA buffer and 1/2 Vdd

IC300 E-VOL/MPX

E-VOL/MPX

IC301 SYSTEM E'S

SYSTEM E'S

IC310-312 Buff

Buffer for 4.5 V PRE-OUT

IC500 POWER AMP

IC900 PNL u-COM

IC930 REMOCON

Remote control light sensor

IC940 SA BPF

BPF for SA

IC950 EXTENSION ROM

IC960 3.3V POWER SUPPLY IC 3.3 V power supply

IC961 LEVEL SHIFT IC

5V-3.3 V level shifting

Q1

5V SW

Q2

MUTE SW

Muting SW for PRE-OUT

Q3

CH RST SW

Q4

LED SW

LED SW for DISC_ and EJ SW

Q5

PNL5V SW

Q6

PNL5V SW

Q9

Buff

IFC buffer

Q10 LED SW

LED SW for DSI

Q100,101 FM+B SW

Q102,103 AM+B SW

Q200 MD/CD-CH SW

CD/CD-CH signal switching

Q201 MUTE DRV

For SA muting

Q202 ALC

ALC

Q300 MUTE

E-VOL muting SW

Q350A,B MUTE DRV

PRE-OUT muting

Q351A,B MUTE DRV

PRE-OUT muting

Q352A,B MUTE DRV

PRE-OUT muting

Ref.No.

Element/Function

Operation/Condition

Q600 BU DET

B-U ON/OFF detection

Q601 Acc DET

Acc ON/OFF detection

Q602 P-ANT SW

Q603 P-ANT SW

Q604 P-CON SW

Q605 P-CON PROTECT

Q606 P-CON PROTECT

Q607 P-CON SW

Q608 DIMMER SW

Q609 EXT AMP CON. SW

Q610 DSP 5V AVR

5V DSP power supply

Q611,612 PNL5V AVR

5V panel power supply

Q613,614 BU5V AVR

5V uCOM power supply

Q615,616 DD-CONV SW

Q617,618 DD-CONV AVR

DC/DC converter power supply

Q619,620 SURVO7.5V AVR 7.5V CD mechanism power supply

Q621,622 AUDIO8V AVR

8V Audio power supply

Q623 14V SW

8V Audio, 5 V DSP,

7.5 V SERVO and 5 V MP3 SW

Q624 14V SW

8V Audio, 5 V DSP,

7.5 V SERVO and 5 V MP3 SW

Q630 MP3 5V AVR

5V MP3 power supply

Q631 MP3 5V AVR

5V MP3 power supply

Q632,633

AUDIO DC/DC

11V Audio DC/DC CONV

11V AVR

power supply

Q801-803 AUDIO -9V SW

Q804,805 AUDIO 9V SW

Q806 AUDIO 9V SW

Q900 LED SW

LED SW for SRC and KENWOOD logos

Q930,931 PNL5V SW

5V Panel SW for SA-BPF and

REMOTE-CON

Q960 BK SW

Q961,962 VFD SW

KDC-Z828,Z828

4

G System Microcomputer UPD703033GC060 (IC1 : Main unit)

PinNo.

Pin name

I/O

Description

Processing Operation

1

AMP_MUTE

O

Muting control output to Power IC

Muting ON: Low. Muting OFF: High.

2

AMP_STBY

O

Standby control output to Power IC

Standby canceled: High. Standby mode: Low.

3

NC

O

Output open

4

NC

O

Output open

5

P_ANT

O

Power antenna control output

Radio mode: High. Other mode: Low.

6

EVdd

Connected to B-U 5 V

7

EVss

Connected to GND

8

P_CONT

O

Power control output

ON: High. OFF: Low.

9

BEEP

O

Beep output

Permanently "L".

10

EXT_AMP

O

External amp control output

11

DIMMER

I

Dimmer detection input

Dimmer ON: Low. Dimmer OFF: High.

12

CH_CON

O

CD-CH control output

ON: High. OFF: Low.

13

CH_REQH

O

CD-CH send request output

Request: Low.

14

DSP_DATA

O

Data output to DSP_IC (M65849BFP)

15

DSP_STB

O

Strobe output to DSP_IC (M65849BFP)

16

DSP_CLK

O

Clock output to DSP_IC (M65849BFP)

17

NC

O

Output open.

18

IC/Vpp

O

Test

19

IN_SEL

O

CD/CD-CH switching control output

CD: Low. CD-CH: High. Other source: L.

20

SA_MUTE

O

Signal muting output to spectrum analyzer

MUTE ON:HI

21

I2C_SDA

I/O

Data input/output from/to CD mechanism, E-VOL (TDA7407) and HPF

22

I2C_SCK

I/O

Clock output to CD mechanism, E-VOL (TDA7407) and HPF

23

MUTE

O

Muting control output (N-CH open drain)

MUTE ON:HI, MUTE OFF:LO

24

SW5V

O

5 V SW control output (N-CH open drain)

SW5V ON:LO, SW5V OFF:HI

25

F/E_DATA

I/O

Data input/output from/to F/E and PROM (N-CH open drain)

26

F/E_CLK

I/O

Clock output to F/E and PROM (N-CH open drain)

27

PRE_OUT_MUTE

O

PRE-OUT muting control output

Muting ON: Low. Muting OFF: High.

Momentary power down: Low.

28

IFC

I

IF_COUNT input from F/E

Station detected: Low.

Station not detected: High.

29

AM+B

O

AM power supply control output

AM ON:HI, AM OFF:LO

30

FM+B

O

FM power supply control output

FM ON:HI, FM OFF:LO

31

RESET

I

Reset input

LO:RESET ON

32

XT1

Connected to Sub X'tal

33

XT2

Connected to Sub X'tal

34

REGC

1 uF connected to GND.

35

X2

Connected to Main X'tal

36

X1

Connected to Main X'tal

37

Vss

Connected to GND

38

Vdd

Connected to B-U 5 V

39

CLKOUT

Open

40

NC

O

Output open.

41

NC

O

Output open.

42

P_ON

O

Internal power supply control

ON:HI, OFF:LO

43

VFD_ON

O

VFD power supply control output

VFD ON:HI, VFD OFF:LO

44

NC

O

Output open.

PNL 5 V ON: High. PNL 5 V OFF: Low.

45

PNL5V

O

5 V panel control output

Panel detached:Low. Momentary power

down: Low.

MICROCOMPUTER'S TERMINAL DESCRIPTION

KDC-Z828,Z828

5

MICROCOMPUTER'S TERMINAL DESCRIPTION

PinNo.

Pin name

I/O

Description

Processing Operation

46

NC

O

47

PNL_DET

I

Panel position detection input

Panel open (SW ON): Low.

Panel closed (SW OFF): High.

48

CD_MUTE

I

Muting input from CD mechanism

MUTE:LO

49

CD_MRST

O

Reset output to CD mechanism

RESET:LO

50

CD_MSTOP

O

Stop request to CD mechanism

STOP:LO

51

CD_LO/EJ

I/O

CD mechanism loading motor control (Load/Eject)

LOAD:LO EJ:HI

52

CD_LMON

O

CD mechanism loading motor control (ON/OFF)

LOAD:LO EJ:HI

53

CD_SW3

I

Input from CD mechanism SW3 (DOWN_SW input)

ON:HI

54

NC

O

Output open.

55

BVdd

Connected to B-U 5 V

56

BVss

Connected to GND

57

DSI

O

DSI LED control output

Panel detached: ON. Panel attached: OFF.

58-64

NC

O

Output open.

65

PN_MC_REQ/PANEL

I/O

Send request output to Panel uCOM/Panel detection input

Panel detection input. Panel ON: Low.

66

PAN_RST

O

Reset control output to Panel uCOM

Same function as PNL 5 V.

67

LED_SW

O

LED control output for EJECT SW and DISC _OUTPUT open. ILL ON:HI, ILL OFF:LO

68,69

O

Output open.

70

AVCONT

O

A/D reference voltage control output

During operation: High.

71

AVdd

Connected to B-U 5 V

72

AVss

Connected to GND

73

AVref

A/D reference voltage

74

PHONE

I

PHONE detection input

TEL muting: 1 V or less. NAVI muting: 2,5 V or more.

75-78

NC

I

Resistor connected to GND

79

MP3/CD

I

MP3/CD identification input

CD: Low. MP3: High.

80

S-METER

I

FM S-meter input from F/E

(Analog input)

81

TYPE1

I

Destination type ID input

K (North America): H. M (General overseas): L

82

TYPE2

I

Destination type ID input

K (North America): H. M (General overseas): H

83

NC

I

Resistor connected to GND

84

ST_TYPE1

I

E-VOL setting selection input

Normal: Low. Special: High.

85

ST_TYPE2

I

E-VOL setting selection input

Normal: Low. Special: High.

86

NC

O

Output open.

87

DISC_EJ_SW

I

CD EJECT SW input (Interrupt input)

CD ejection: Low. (Interrupt input)

88

CH_REQC

I

Send request input from CD-CH (Interrupt input)

ON: Low. (Interrupt input)

89

PN_SC_REQ

I

Send request from Panel uCOM

(Interrupt input)

90

CD_SW1

I

Input from CD_SW1 (Loading SW detection)

LO:ON, HI:OFF

91

CD_SW2

I

Input from CD_SW2 (12 cm CD detection)

LO:ON, HI:OFF

92

ACC_DET

I

Acc detection input

HI:ACC OFF, LO:ACC ON

B-U power down: High. B-U normal: Low.

93

BU_DET

I

B-U detection input (Interrupt input)

Muting and mechanism operation stop should

be executed quickly. (Interrupt input)

94

CH_DATAC

I

Data input from CD-CH

95

CH_DATAH

O

Data output to CD-CH

96

CH_CLK

I/O

Clock input/output from/to CD-CH

97

PN_SC_DATA

I

Data input from Panel uCOM

98

PN_MC_DATA

I/O

Data output to Panel uCOM

99

PN_MC_CLK

O

Clock output to Panel uCOM

100

NC

O

OUTPUT OPEN