Kenwood RXD-402, RXD-402-E, RXD-402-W, RXD-452, RXD-452-E Service manual

MINI HiFi COMPONENT SYSTEM

RXD-402/402E/402W/452/452E/452W/502/502E/

RXD-502W/552/552E/552W/572S/A41/A51

SERVICE MANUAL

(XD-402~A51) **

Knob (K29-7545-04)

Phone jack (E11-0280-05)

Knob (K29-7544-04)

Front glass (B10-3448-02)

Knob (K29-7541-02)

Front glass (B10-)

Knob (K29-7543-04)

Knob (K29-7541-02)

Front glass (B10-3449-02)

Cassette lid (L) (A53-2121-02)

Knob (K29-7553-01)

Panel * (A60-)

**Refer to page 2 if you want to know system configuration.

In compliance with Federal Regulations, following are reproductions of labels on, or inside the product relating to laser product safety.

Cassette lid (R) (A53-2122-02)

Front glass (B10-3471-03)

Panel (CD) (A29-1046-02)

Illustration is RXD-402. * Refer to parts list on page 48~.

KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.

DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM

SYSTEM MAIN UNIT SPEAKER DESTINATION SYSTEM MAIN UNIT SPEAKER DESTINATION XD-402 RXD-402 LS-N402 KPET XD-502 RXD-502 LS-N502 KPE XD-402E RXD-402E LS-N402 E1 XD-502E RXD-502E LS-N502 E1 XD-402W RXD-402W LS-N402 Q XD-502W RXD-502W LS-N502 Q XD-452 RXD-452 LS-N452 MXYTE XD-552 RXD-552 LS-N552 MXYTE XD-452E RXD-452E LS-N452 E1 XD-552E RXD-552E LS-N552 E1

XD-452W RXD-452W LS-N452 Q

XD-552W RXD-552W LS-N552 Q XD-572S RXD-572S LS-N552 M1 XD-A41 RXD-A41 LS-N452 KP XD-A51 RXD-A51 LS-N552 KP

VOLUME

CD

TAPE

MUTE

RC-552

REMOTE CONTROL UNIT

EX.BASS

TIME

INPUT

BAND

POWER

TAPE

A/B

RANDOM

REPEAT TEXT DISP.

TUNING

6

1 2 3

4 5 6

7 8 9

0 +10

32¡1

4

7

M

U

L

T

I

C

O

N

T

R

O

L

¢

DISC SKIP

SOUND

CONTROL

MENUBACK

SELECT

ENTER

VOLUME

CD

TAPE

MUTE

MENU

RC-552E

REMOTE CONTROL UNIT

EX.BASS

TIME

INPUT

BAND

PTY

TA/NEWS RDS DISP.

POWER

BACK

TAPE

A/B

RANDOM

REPEAT TEXT DISP.

TUNING

6

SET

ENTER

1 2 3

4 5 6

7 8 9

0 +10

32¡1

4

7

M

U

L

T

I

C

O

N

T

R

O

L

¢

DISC SKIP

SOUND

CONTROL

FM indoor antenna

(1)

AM loop antenna

(1)

Speaker cords (2)

Remote control

(A70-1262-05): TEQE1...RC-552E

(A70-1253-05): KPMXYM1...RC-552

unit

(1)

Remote control unit

(1)

Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necesary.)

AC plug adaptor (1)

Provided in the speaker package

Batteries

(T90-0836-05) (T90-0837-05)

(E30-5535-05)

(E03-0115-05)

(R6/AA)

(2)

RXD-402/452/502/552/572S/A41/A51

Unplug the power cord from the power outlet then, while holding the ENTER key depressed, plug the power cord again.

÷

Please note that resetting the microcomputer clears the contents stored in and returns and to condition when it left the factory.

Operation to reset

The microcomputer may fall into malfunction (impossibility to operate, erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, execute the following procedure to reset the microcomputer and return it to normal condition.

(Main unit only)

CONTENTS / ACCESSORIES / CAUTIONS

Accessories

PC BOARD ................................................................15

SCHEMATIC DIAGRAM............................................23

EXPLODED VIEW .....................................................44

PARTS LIST...............................................................48

SPECIFICATIONS.....................................................59

System configuration

2

Cautions

ENTER

EXTERNAL VIEW / DISASSEMBLY FOR REPAIR

BOTTOM SIDE

FRONT

HOW to open the tray if not comes out.

(1) Turn the friction arm counterclockwise using a screw driver and the like.

(2) Pull out the tray front wards by hand when the tray comes just out.

EXTERNAL VIEW

Cover (F07-1655-02)

RXD-402/452/502/552/572S/A41/A51

Metallic cabinet (A01-3681-01)

Lock terminal board (E70-0053-05)

Slide switch (S62-0077-05)

Phono jack (E63-0116-05)

Lock terminal board (E20-0321-05)

Phono jack (E63-1037-05)

Oscillating module (W02-1114-05)

DISASSEMBLY FOR REPAIR

Lock terminal board (E70-0053-05)

Illustration is RXD-402.

3

A PB

B R/P

B ERASE

BIAS OSC CTRL

BIAS

VR5

HA12219NT

IC1

HA12136A

IC2

MPX

DPSS

IC4

HD74HC166P

FL DISPLAY

ED1

M66004SP

IC51

DRIVER

REMOCON

A1

D52

TIMER

D51

STANDBY

KEY MATRIX

ENHANCED IC FOR LED

IC52,53

JOG A JOG B VOL.

BU2090

+12V AVR

Q4

AVR

Q6,7

-12V

+12V

AVR

IC2

+5V AVR

IC1

+9V

RDS

CD +9V

-B

GND

+B

+40V AVR

Q8

(X14- ) +5V

FL -35V

Q2

+5.6V AVR

u-COM

FAST OFF

FL AC

AMP

for

POWER

AC IN

RF AMP

CXA1571M

IC5

E-VOL

TUNER

DECK

TUNER

E-VOL

FL IC +5V

u-COM

PULL UP

DRIVER

TRACKING COIL

4ch BTL DRIVER

BA5979S

DRIVER

FOCUS COIL

DRIVER

FEED MOTOR

DRIVER

DISC MOTOR

IC6

A B

C

E

F

SW

LD

Q501

DSP.SERVO.

CXD2587Q

IC7

DAC

CD +5V

CD +9V

(DSP,RF)

Q505

FM

DM

TA8409S

(ROTARY TRAY)

TA8409S

(LOADING)

LM

RM

IC8

IC9

M30622MA-173FP u-COM IC

IC1

IC2

K1

120V 240V

INPUT

OUTPUT

MD/DVD

MD REC

J1

SURROUND

3BAND TONE

EX-BASS

M62492FP SELECTOR,SURROUND,TON,E-VOL

RDS DEMODULATOR

IC3 (T,E,Q TYPE ONLY)

SAA6579T/R

MODULE

TUNER

ANT.

PHONES

HEAD

POLAR UNIT

-10dB ATT

AMUTE

S1

OFF

ON

ON/OFF

MATRIX

K1

RELAY

SPEAKER

ch.

OTHER

OUT

SW

Lch

Rch

SPEAKER

MATRIX SPEAKER

BCLASS

ACLASS

Q1,2

Q3,4

B

A

REQ EQ

BIAS TRAP

PH A,B

MOTOR A MOTOR B

MOTOR

SOL A,B

SPEED

TAPE

A/B

MOTOR

SOL A,B

VR7,8

LEVEL

B PB

LEVEL

VR1,2

A PB

PH A,B

B.CANCEL

BIAS

NOR

A-N/C

A/B

B1/2

DOLBY

R/P

DPSS

A,B CrCO2 L REC R REC A,B PACK A,B PLAY

PSIN CLK

PSLOAD

GRID SEG1635

CLK

CS DATA

KEY3

KEY2

KEY1

DATA1/2

CLK

15LED

A JOG 1/2 1/2

B JOG

1/2

ENC

+

RF.FE.TE

16.93MHZ

LOM+/-

ROM+/-

PHTR

TD/TU

CL/OP

PSW

MAIN

10MHz

SUB

32.768kHz

DATA CLK MPX

TAPE REC

CLK

LATch

DATA

MECHA.

DECK

(X28- )

(X14- )

(X00- )

(X14- )

(X04- )

(X13- )MGC-E9001

CD MECHA.

Q TYPE ONLY

2-71

0-22

X07-3030-21

ONLY

M TYPE ONLY

RXD-402/502

(X07- )

4

RXD-402/452/502/552/572S/A41/A51

BLOCK DIAGRAM

RXD-402/452/502/552/572S/A41/A51

CIRCUIT DESCRIPTION

1. Initialization

1-1 Setting of initial conditions

While pressing the [ENTER] key, put the plug into an AC power outlet.

1-2 Initializing operation

• A microcomputer is initialized for start when the AC power is turned on when pressing the [ENTER] key. At that time, CD mechanism and CASSETTE mechanism are also initialized.

• During the initial operation,the display shows INITIALIZE and after that it will be returned to STANDBY condition.

1-3 Initial items and back up data

ITEMS

*POWER STANDBY *VOLUME 14 *BALANCE CENTER MUTING OFF PROTECTION OFF

AMP S. DIRECT OFF

DISPLAY MODE AUTO *AUTO POWER SAVE OFF *MD/DVD INPUT LEVEL -3 *INPUT SEL. TUNER *BAND FM

TUNER *FREQUENCY LOWEST FREQUENCY

*AUTO/MONO AUTO *P.CH --CH *CLOCK 0:00 (E/T/Q) 12:00 (OTHERS)

CLOCK *PROG. RECORDING ON/OFF TIME

0:00 (E/T/Q) 12:00 (OTHERS)

*PROG. TIMER PLAY ON/OFF TIME 0:00 (E/T/Q)

12:00 (OTHERS) SLEEP TIMER OFF O.T.T. OFF *DIRECTION FORWARD

DECK *RVS MODE REVERSE

*A/B B

*BACKED UP DATA

1-4 Mechanism initialization

1-4-1 CD mechanism

• Disc unclamps(traverse down).

• Rotary tray rotates(1/3 rotation).

• If a mechanism error occurs, CD ERR is indicated on the display.

1-4-2 DECK mechanism

• When initial condition becomes NG for the third time, decide the error. The error condition is displayed as X ERR on the display.

1-4-3 Error display

• If both mechanism (CD/DECK) error occur, the display is indicated as follows. CD & X ERR

2. Destination list of TUNER

Destinat-

2-1 Discrimination of TUNER destination

Destina- R107 Voltage

Tuner

ion

K,P K1

M,V,X,Y

AM 530k Hz~1610kHz 10k Hz +450k Hz 10kHz

M K3

M,V,X,Y

AM 531k Hz~1602kHz 9kHz +450kHz 9kHz

M E3

E

T

QQ

BAND

type

FM 87.5MHz~108.0MHz 100k Hz +10.7MHz 25kHz AM 530kHz~1700kHz 10kHz +450kHz 10kHz

K2 FM 87.5MHz~108.0MHz 100k Hz +10.7MHz 25kH

FM 87.5MHz~108.0MHz 100k Hz +10.7MHz 25kHz

MW 530kHz~1610kHz 10k Hz +450k Hz 10kHz

SW 5.9MHz~17.9MHz 5kHz +450k Hz 5kHz

E1 FM 87.5MHz~108.0MHz 50k Hz +10.7MHz 25kHz

FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz

MW 531kHz~1602kHz 9kHz +450k Hz 9kHz

SW 5.9MHz~17.9MHz 5kHz +450k Hz 5kHz E1 FM 87.5MHz ~108.0MHz 50k Hz +10.7MHz 25kHz RDS AM 531kHz~1602kHz 9kHz +450kHz 9kHz

FM 87.5MHz ~108.0MHz 50kHz +10.7MHz 25kHz E2

MW 531kHz~1602kHz 9kHz +450k Hz 9kHz

RDS

LW 153kHz~279k Hz 9kHz +450kHz 9kHz

FM L 65.0 MHz~74.0 MHz 10kHz +10.7 MHz 5kHz

FMH 87.5MHz~108.0MHz 50kHz +10.7MHz 5kHz

MW 531kHz~1602kHz 9kHz +450k Hz 9kHz

LW 153kHz~279kHz 9kHz +450kHz 9kHz

tion [½] [V]

K 91k 4.51 M1 39k 3.98 M2 22k 3.44

T 13k 2.83

Receiving

frequency range

Channel

space

AVdd

10

R107

k½

IF RF

X13

IC1

91pin

(TYPE)

E 8.2k 2.25

Q 4.7k 1.60

3. Test mode

3-1 Test mode of the receiver

3-1-1 Setting of the test mode

While pressing the [INPUT] key or [BAND] key, put the plug into an AC power outlet.

3-1-2 Canceling of the test mode

Unplug an AC power cord from an AC power outlet.

3-1-3 Condition in test mode

• Power • • • • ON

• EX.BASS • • • OFF

• S.W • • • • • • • OFF

• Selector mode or FL indication

KEY

[BAND] TUNER • STANDBY and TIMER LEDs blink up. + AC ON • The all illminated state is cleared by

[INPUT] AUX • AUX TEST + AC ON

SELECTOR

MODE

FL INDICATION

• All the fluorescent display indicators and LEDs light on.

pressing any main unit keys or remocon keys.

5

RXD-402/452/502/552/572S/A41/A51

CIRCUIT DESCRIPTION

3-1-4 Basic operation in test mode

(1) The muting during mode selection is not controlled in

the test mode.

(2) The test mode is cancelled when the AC power is

turned off.

(3) The operation of the keys in the test mode as follows.

3-1-5 The operation of the keys in the test mode

(1) DISPLAY /DEMO key

When this key is pressed in the test mode, all the fluorescent display indicators and leds light off and normal display are indicated cyclically.

(2) REV.MODE,DOLBY NR,A/B,REC/ARM keys

The volume level settings can be made as follows. REV.MODE • • • volume min+1step DOLBY • • • • • • volume 14 *RXD-402(TAPE E.Q.) A/B • • • • • • • • • volume20 REC/ARM • • • • volume max (50)

(3) DISC SKIP key

With the selector on TUNER, the S level indication changes cyclically as follows by pressing the [DISC SKIP] key.

1 ATT is switched off. "ATT off & TUNER S level XX" 2 ATT is switched on. "ATT on & TUNER S level XX" 3 ATT is switched off. Normal display.

XX means A/D value(HEX) of S.

(4) DECK STOP key

With the selector on TUNER, when the [DECK STOP] key operated, the preset memory can be changed as 10 steps.

10 20 30 40 00( )

(5) FWD PLAY/RVS key

With the selector on TUNER, the P. CALL is operated by pressing the [ FWD PLAY] and [ RVS PLAY] keys. FWD PLAY key • • • • P. CALL up RVS PLAY key • • • • P. CALL down

(6) CD OPEN /CLOSE key

With the selector on TUNER, the channel space settings can be made cyclically by pressing the [CD OPEN/CLOSE] key with M version.

(7) DECK STOP key

With the selector on AUX, when the [DECK STOP ] key operated,the S. direct (ON/OFF) can be changed.

(8) DISC 1 key

With the selector on something other than TUNER, whenever the [DISC1] key is pressed, the setting of E.Q changes cyclically as follows.

E.Q MAX E.Q MIN E.Q FLAT

(9) DISC 2 key

With the selector on AUX, MD/DVD input level can be made cyclically by pressing the [DISC 2] key .

INITIALIZED VALUE íî LEVEL MAX

6

(10) DISC 3 key

With the selector on AUX, the balance level setting can be made cyclically by pressing the [DISC 3] key .

Lch MAX Rch MAX CENTER

(11) DISC SKIP key

With the selector on something other than TUNER, the muting (ON/OFF) can be changed.

3-2 Test mode of cassette deck

3-2-1 Setting of the test mode

While pressing the [deck play] key, put the plug into an AC power outlet.

3-2-2 Canceling of the test mode

Unplug an AC power cord from an AC power outlet.

3-2-3 Condition in test mode

(1) Initial condition

• DOLBY-0FF

• AUDIO-MUTE OFF

(2) Mechanism SW detection

DISPLAY

A pack SW E.Q A -CRO2 PROG.12 B-FWD O.T.T B pack SW AUTO B-CRO2 ST B-RVS ANTENNA

(3) 4-sec recording

If the REC key is pressed, the system record for 4 sec. Then, it rewinds to the recording starting position and plays back automatically. If the REC key is pressed, during the 4-sec recording operation, the system records further for 4-sec, then return to the starting position of the first 4-sec recording operation and plays back.

3-3 Test mode of CD player

3-3-1 Setting of the test mode

While the pressing the [PLAY/PAUSE] key, put the plug into an AC power outlet.

3-3-2 Canceling the test mode

Press the stop key on stop mode or unplug the AC cord from an AC power outlet.

3-3-3 The operation of the keys in the test mode.

KEY DISPLAY OPERATION

PLAY/PAUSE

+AC IN

STOP 0

PLAY/PAUSE

DOWN FINISH • Tray 1/3 rotation.

DISC3

DISC2 216**:**

DISC1

CD TEST

03 --:-05**:**

07 EF/FB 08 TG/FG 09 TE/RF 10 TE/VC

• Setting of the test mode.

• Tray 1/3 rotation.

• Tray opens automatically.

• Tray closes.

• Change or cancel the test mode.

• Tray closes/disc clamps.

• T-servo off(03) or on (05).

• Mechanism stops when the automatic adjustment is finished.

• Display changes cyclically.

• If NG, display blinks up.

• Tray closes.

• Disc2 clamps.

• Plays track 16.

• Tray closes/disc clamps.

• Plays track 32.

CIRCUIT DESCRIPTION

SERIES

EXPANDER

X14, IC51

X14, IC52, 53

X04, IC7

X04, IC3

TUNER PACK IC2

X28, IC4

X04, IC2

X28, IC1

X13, IC1

4. Main microprocessor

4-1 Microprocessor periphery block diagram

RXD-402/452/502/552/572S/A41/A51

4-2 Key matrix

7

RXD-402/452/502/552/572S/A41/A51

CIRCUIT DESCRIPTION

4-3 Pin description of microprocessor: M30622MA-173FP (X13, IC1)

Pin No. Name I/O Description Active

1 S.LEVEL I RDS S level input. 2 PLL DO I PLL IC data input. 3 SD I SD detector input. 4 ST I Stereo detector input. 5 PLL CE O PLL IC chip enable. 6 RDS DATA I RDS data input. 7 PLL CLK O PLL IC clock output. 8 BYTE I Ground.

9 CNVSS - Ground. 10 XCIN I Timer clock input(32.768kHz). 11 XCOUT O Timer clock output(32.768kHz). 12 RST I u-com reset signal input. H : normal L : reset 13 XOUT O Main clock output(10MHz). 14 VSS - Ground. 15 XIN I Main clock input(10MHz). 16 VCC(BU) - No used (+5v). 17 HMI - u-com power supply(+5v). 18 REM I Remocon signal input. H : normal L : reset 19 RDS CLK I RDS clock input. 20 SCOR I Sub code synchronism signal input. 21 NC - No connection. 22 CLSW I CD load switch (SW3) input port of CD mechanism. 23 OPEN SW I CD unload switch (SW3) input port of CD mechanism. 24 RTL O Rotary motor opposite direction (CCW) output. 25 BRKM O Rotary motor brake control. H : normal L brake 26 CLOSE O Load motor opposite direction (taking out) output. 27 OPEN O Load motor positive direction (dragging out) output. 28 SQCK O CD sub code clock output. 29 SQSO I CD sub code input. 30 NC - No connection. 31 FL DATA O FL driver data output. 32 CE I Power failure signal input. H : AC on L : AC off 33 FLCLK O FL driver clock output. 34 FLCS O FL driver strobe output. 35 RTR O Rotary motor positive direction (CW) output. 36 TDSW I Traverse down switch (SW1) input port of CD mechanism. H : off L : on 37 TUSW I Traverse up switch (SW1) input port of CD mechanism. H : off L : on 38 PHTR I CD photo transistor (Q1) detector input.

39 PSSW I 40 XRST O CD DSP IC reset control.

41 CD MUTE - No connection. 42 DC OFF O CD DSP IC power control. H : on L : off 43 MON O Spindle motor (ON/0FF) changeover. H : on L : off 44 LDC O Laser ON/OFF signal output. H : off L : on 45 SCLK O CD sense data read out clock output. 46 SENS I CD sense input. 47 CLOK O CD DSP IC clock. 48 XLAT O CD DSP IC latch. 49 DATA O Data output to DSP IC. 50 EVCLK O Clock output to E. vol(IC2). 51 EVLAT O Latch output to E. vol(IC2). 52 EVDATA O Data output to E. vol(IC2). 53 A-JOG1 I Jog A (S28) input.

8

Tray position & disc detector switch (SW2) input port of CD mechanism.

RXD-402/452/502/552/572S/A41/A51

CIRCUIT DESCRIPTION

Pin No. Name I/O Description Active

54 A-JOG2 I Jog A (S28) input. 55 B-JOG1 I Jog B (S29) input. 56 B-JOG2 I Jog B (S29) input.

57,58 ENC1,2 I Rotary encoder(S27) input.

59 LEDCLK O Clock output to LED controller(IC52,53).

60,61 LEDDT1,2 O Data output to LED controller(IC52,53).

62 VCC(BU) - u-com power supply(+5v). 63 LMUTE O Deck line mute control. 64 VSS - Ground. 65 B-PH I B deck reel sensor input. 66 A-B2 O Deck A/B changeover control 1. 67 A-B1 O Deck A/B changeover control 2. 68 A120/70 O Play back equalizer control. H :70u L :120u 69 B1/2 O Muting control for recording. 70 D-R/P O Dolby recording/play back control. H : recording L : playback 71 DOLBY O Dolby B ON/OFF changeover. H : on L : off 72 R/P O Deck recording /play back control. H : recording L : playback 73 NOR O NORMAL/CRO2 changeover. 74 BIAS O Deck bias control output. H : on L : off 75 BEAT.C O Deck beat cancel control output. H : on L : off 76 B.SOL O Deck solenoid control output. H : on L : off 77 CPM O Deck motor control output. H : on L : off 78 A.SOL 0 Deck solenoid control output. H : on L : off 79 CLK O Clock output to bias control IC(X28,IC4). 80 PSLOAD O Parallel serial IC load. H : shift L : load 81 AMUTE 0 Audio muting control. H : off L : on 82 ATT O E. volume attenuation output. H : off L : on 83 POWER O Power relay control. H : on L : off 84 PROTECT I Protection detection input. H : protection on L : off 85 SP.RELAY O Speaker relay control output. H : on L : off 86 LED(STBY) O LED(STANDBY) control output. H : on L : off 87 LED(TIMER) O LED(TIMER) control output. H : on L : off 88 PSIN I Parallel serial IC input data. 89 SPEANA I Music signal input port. 90 MODEL I Model discrimination input. H :XD-502 L :XD-402 91 TYPE I Discrimination port of tuner destination. 92 DPSS I Deck DPSS detection input. 93 A-PH I A deck reel sensor input.

94,95 KEY3,2 I A/D key input (key3,2).

96 AVSS - A/D ground. 97 KEY1 I A/D key input (key1). 98 VREF - A/D reference voltage. 99 AVCC(BU) - Analog power supply(+5V).

100 PLL DATA I PLL IC data input.

5. IC controller

5-1 RDS LED driver

Pin No. Name I/O Description

1 VSS - GND 2 DATA I DATA INPUT 3 CLOCK I CLOCK INPUT 4 PTY O PTY ON/OFF LED 5 NC O NO USED 6 EON O EON INT LED 7 NC O NO USED

Pin No. Name I/O Description

8 TA O TA ON/OFF LED 9 TP O TP ON/OFF LED

10 RDS O RDS ON/OFF LED

11~13 NC O NO USED

14 NEWS O NEWS ON/OFF LED 15 NC O NO USED 16 VDD - +5V POWER SUPPLY

9

RXD-402/452/502/552/572S/A41/A51

No.

ITEM

INPUT

SETTINGS

OUTPUT

SETTINGS

AMPLIFIER

SETTINGS

ALIGNMENT

POINTS

ALIGN FOR

FIG.

Unless otherwise specified, the individual switches should be set as following : POWER : ON SELECTOR : CD

1

IDLE CURRENT

–

Connect a DC

voltmeter to

CN3 (Lch),

CN4 (Rch)

X07, A/2.

VOLUME : 0

VR1 (L)

VR2 (R)

X07, A/2

6 mV

(a)

Dc voltmeter

6 mV

CN3 (L) CN4 (R)

(a)

ADJUSTMENT

Amp adjustment

10

X04-1313 Q TYPE (65MHz~74MHz BAND)

N0.

ITEM

INPUT

SETTINGS

OUTPUT

SETTINGS

TUNER

SETTINGS

ALIGNMENT

POINTS

ALIGN FOR

FIG.

1

VCO

(C)

69 MHz,

70 dBf (ANT INPUT)

1 kHz, 0 kHz DEV

SUB, 0 kHz DEV

Connect a frequency

counter to VCO monitor

X04 (CN2).

AUTO

69 MHz

VR 2

Adjust it the

frequency counter

reads 31.25 kHz

±100 Hz.

(a)

2

RESONANCE

POINT

(C)

69 MHz,

70 dBf (ANT INPUT)

1 kHz, 40 kHz DEV

SUB, 10 kHz DEV

Select : L or R

Connect a oscilloscope

to TUNER OUT(CN6).

AUTO

69 MHz

TC 1

Minimum crosstalk.

(a)

3

SEPARATION

(C)

SAME AS ABOVE

Connect a oscilloscope

to TUNER OUT(CN6).

AUTO

69 MHz

VR 1

Minimum crosstalk.

(a)

(A)

(B)

(C)

(D)

AM-SG

FM-MPX-SG

TO CN6 3pin (Lch) 1pin (Rch) 2pin (GND)

POLAR SG

AC voltmeter

Oscilloscope

Distortion meter

Dummy antenna

Fig (a)

Tuner adjustment

RXD-402/452/502/552/572S/A41/A51

ADJUSTMENT

11

X13 FOIL SIDE VIEW

VR1

FE. B

RF FE1 FE2 TE2 TE1 VC

RXD-402/452/502/552/572S/A41/A51

ADJUSTMENT

CD player adjustment

No.

Step 1,2 are in TEST MODE TEST MODE : While pressing the [CD PALY] key, plug the AC power cord into the AC power wall outlet.

Note: Type 4disc :SONY YEDS-18 Test Disc or equivalent. (KTD-02) LPF : Around 47k½ + 390pF or so.

1

2

ITEM

LASER

POWER

FOCUS ERROR

BIAS

INPUT

SETTING

–

Test disc

Type 4

(a) Laser Power (b) Test point

OUTPUT

SETTING

Set the senor section

of the optical power

meter on the pickup

lens.

Connect an oscillo-

scope as follows.

CH1 : RF CH2 : FE1 GND : VC

PLAYER

SETTING

Press the"PLAY"key

to check that the dis-

play is "03".

Press the "PLAY"

key. Confirm that the

display is”05”

ALIGNMENT

POINT

–

FE

BIAS VR1

ALIGN FOR

On the power

from.0.05 to 0.15mw.

when the diffraction

grating is correctly

aligned with the RF

level of 0.8Vp-p or

more

Optimum eye pattern

(DC=±330mV)

FIG.

(a)

(b) (d)

(d)

Pickup

RF signal FAC coupled

0.05~0.15 mW

Optical power meter

RF signal in test mode (PLAY). Perform the tangential and focusing offset are focused into one point on the display. The crossing points above and below the center shall also be looked clearly.

12

RXD-402/452/502/552/572S/A41/A51

{

(A) (B)

X28, CN6

L IN

L OUT

R OUT

R IN

GND

1

5

AC voltmeter AG

Oscilloscope

AC voltmeter

Frequency counter

ADJUSTMENT

Cassette Deck adjustment

No

Unless otherwise specified, set the respective switches as follows: 0dBs=0.775V

TAPE : NORMAL DOLBY : OFF PLAY OUT : Lch (X28,CN6 @pin), Rch (X28,CN6 Cpin)

ø. Cassette mechanism unit (Adjustment of the REC / PLAY head)

q1 r

q2 r

¿. PC BOARD ADJUSTMENT

ITEM

Demagnetization

and cleaning

Azimuth of the

REC/PLAY head

INPUT

SETTING

\

TCC-153 MTT-114

10kHz, - 10dB

OUTPUT

SETTING

\

iB j

DECK

SETTING

Demagnetization:

POWER OFF

Cleaning: PLAY

PLAY

ALIGNMENT

POINT

Recording

head, erase

head,capstan

pinch roller

FWD RVS

ALIGN FOR

Demagnetize the

REC / PLAY head

with the head eras-

er.Clean the REC /

PLAY head, erase head,capstan and

pinch roller using a

cotton swab slightly

damped with alcohol.

Adjust the output to

maximum and adjust

the azimuth adjust-

ment screw for the Lissajours waveform pattern of the oscillo-

scope to become

close to a 45°

straight line.

FIG.

q1 r

¡. PC BOARD ADJUSTMENT

q1 r

q2 r

TAPE

SPEED(NORMAL)

PLAYBACK

LEVEL

BIAS CURRENT

SCC-1727

MTT-256U,

315Hz, 0dB

Adjust the AG

for the output of

the DECK to

1kHz(-30dBs)/

10kHz(-30dBs).

TCC-110 MTT-111

3kHz

TCC-160

(A)

become

iB j

PLAY

Adjust the REC VR

level so that the line

out is -2.6dBs at

1kHz, and record

and playback

1kHz/10kHz alter-

nately.

A/B DECK

VR 5

A DECK

VR 1 (L) VR 2 (R)

B DECK

VR 7 (L) VR 8 (R)

VR 3 (L)

VR 4 (R)

Adjust the tape

speed so that 3kHz

is obtained at the

center of the tape.

Adjust the playback

output to -6.0dBs

Record 1kHz and

10kHz alternately,

and adjust the bias current adjustment

potentiometer for the

playback levels to

become the same.

13

14

CN1

CN2

WH2

E2

CN1

WH3

E3

CN5

CN4

CN1

E1

WH1

E2

WH1

E1

J4

S1

SURROUND SW

Rch

Lch

SURROUND

SPEAKERS

GND

J2

AM ANT

FM75

J1

MD REC OUTPUT

MD/DVD INPUT

A501

DIGITAL OUT

E1

WH3

E2

CN2 WH4

WH1

WH2

CN1

CN3 CN2

CN5

CN1

RXD-502E (X28-2980-10)

RXD-502W (X28-2983-81)

DESTINATION RUSSIA

COUNTRY

Q

3-81

UNIT No.

ABB.

DESTINATION

EUROPE

COUNTRY

E1 0-10

UNIT No.

ABB.

ABB.COUNTRY

EUROPE

U.S.A

CANADAEPK0-10

DESTINATION

RXD-502 (X28-2980-10)

RUSSIA

UNIT No.

Q

3-82

DESTINATION

RXD-402W (X28-2983-82)

EUROPE

UNIT No.

E1 0-11

DESTINATION

RXD-402E (X28-2980-11)

COUNTRY

U,K

UNIT No.

ABB.

T

RXD-452W (X28-2983-82)

RXD-572S (X28-2980-10)

RXD-552W (X28-2983-81)

RXD-402 (X28-2980-11)

DESTINATION

CANADA

U.S.A

EUROPE

COUNTRY

P

K E

0-11

UNIT No.

ABB.

DESTINATION RUSSIA

COUNTRY

Q

3-81

UNIT No.

ABB.

RXD-552E (X28-2980-10)

DESTINATION EUROPE

COUNTRY

E1 0-10

UNIT No.

ABB.

DESTINATION

GENERAL MARKET

COUNTRY

M1 0-10

UNIT No.

ABB.

M

GENERAL MARKET

EUROPE

AUSTRALIA

U,K

E

T

X 0-10

DESTINATION

RXD-552 (X28-2980-10)

PX

COUNTRY

UNIT No.

Y

ABB.

RXD-A51 (X28-2980-10)

DESTINATION

U.S.A

CANADA

COUNTRY

K P

0-10

UNIT No.

ABB.

DESTINATION RUSSIA

COUNTRY

Q

3-82

UNIT No.

ABB.

RXD-A41 (X28-2980-11)

XAUSTRALIA

RXD-452E (X28-2980-11)

DESTINATION EUROPE

COUNTRY

E1 0-11

UNIT No.

ABB.

JAPAN

EUROPE

U,K

J

E

T

0-11

GENERAL MARKET

DESTINATION

RXD-452 (X28-2980-11)

COUNTRYPXABB.

Y M

UNIT No.

DESTINATION

U.S.A

CANADA

COUNTRY

K P

0-11

UNIT No.

ABB.

RXD-502W (X13-7613-81)

ABB.

RUSSIA

COUNTRY

DESTINATION

3-81

Q

UNIT No.

E1

ABB.

EUROPE

DESTINATION COUNTRY

2-71

UNIT No.

KU.S.A.

RXD-502E (X13-7612-71)

CANADA EUROPEPE 2-71

0-10

ABB.

RXD-502 (X13-761X-XX)

COUNTRY

DESTINATION

UNIT No.

ABB.

RXD-402W (X13-7613-81)

DESTINATION COUNTRY

RUSSIA

UNIT No.

3-81

Q

RXD-402E (X13-7612-71)

ABB.

E1

COUNTRY

EUROPE

DESTINATION

UNIT No.

2-71

U.K.

EUROPE

CANADA

U.S.A.

0-51T 2-71E

0-10

P

K

ABB.

RXD-402 (X13-761X-XX)

COUNTRY

DESTINATION

UNIT No.

ABB.COUNTRY

GENERAL MARKET M 0-21

RXD-572S (X13-7610-22)

ABB.

DESTINATION COUNTRY

GENERAL MARKET M1

UNIT No.

0-22

ABB.

RXD-552W (X13-7613-81)

COUNTRY

RUSSIA

DESTINATION

UNIT No.

3-81

Q

RXD-552E (X13-7612-71)

E1

ABB.COUNTRY

EUROPE

DESTINATION

2-71

UNIT No.

EUROPE

AUSTRALIA

U.K.

E 2-71

X T 0-51

DESTINATION

RXD-552 (X13-761X-XX)

ABB.COUNTRY

PX

DESTINATION

Y

UNIT No.

ABB.

CANADA

COUNTRY

U.S.A.

0-10

P

UNIT No.

K

UNIT No.

RXD-A51 (X13-7610-10)

ABB.COUNTRY

RUSSIA 3-81

Q

E1

RXD-452W (X13-7613-81)

DESTINATION

EUROPE 2-71

RXD-A41 (X13-7610-10)

0-01JJAPAN

RXD-452E (X13-7612-71)

DESTINATION

EUROPE

UNIT No.

2-71E

GENERAL MARKET

AUSTRALIA

U.K.

PX

0-21M 0-51T

X

Y

RXD-452 (X13-761X-XX)

ABB.

DESTINATION COUNTRY

UNIT No.

ABB.COUNTRY

CANADA

U.S.A.

DESTINATION

P

K

0-10

UNIT No.

COUNTRY ABB.

Q

ABB.

RXD-552W (X07-3030-21)

E1

RUSSIA

COUNTRY

DESTINATION

EUROPE

0-21

UNIT No.

0-21

RXD-552E (X07-3030-21)

Y

M

E

T

X

DESTINATION

EUROPE

AUSTRALIA

U.K.

GENERAL MARKET

PX

UNIT No.

0-21

RXD-552 (X07-3030-21)

P

K

ABB.

RXD-A51 (X07-3030-10)

DESTINATION

CANADA

U.S.A.

COUNTRY

DESTINATION

0-10

UNIT No.

RXD-452W (X07-3030-11)

Q

ABB.

E1

RUSSIA

DESTINATION COUNTRY

EUROPE

0-11

UNIT No.

0-11

ABB.

RXD-452E (X07-3030-11)

J

M

X

T

E

JAPAN

COUNTRY

DESTINATION

EUROPE

U.K.

AUSTRALIA

GENERAL MARKET

UNIT No.

0-22

0-11

ABB.

RXD-452 (X07-303X-XX)

Y

P

K

ABB.

DESTINATION COUNTRY

PX

U.S.A.

CANADA

COUNTRY

DESTINATION

UNIT No.

0-11

UNIT No.

RXD-A41 (X07-3030-11)

COUNTRY ABB.

RXD-502W (X07-3030-21)

RUSSIA

DESTINATION COUNTRY

0-21

Q

UNIT No.

ABB.

EUROPE

0-21

E1

DESTINATION

EEUROPE 0-21

RXD-502E (X07-3030-21)

DESTINATION

UNIT No.

CANADA

COUNTRY

U.S.A.

0-10

P

UNIT No.

K

ABB.

RXD-502 (X07-303X-XX)

RUSSIA 0-11

Q

RXD-402W (X07-3030-11)

DESTINATION COUNTRY

UNIT No.

ABB.

RXD-402E (X07-3030-11)

COUNTRY

EUROPE

DESTINATION

ABB.

0-11E1

UNIT No.

EUROPE

U.K.

CANADA

E

0-11

T

P

RXD-402 (X07-3030-11)

DESTINATION

U.S.A.

COUNTRY

UNIT No.

K

ABB.

GENERAL MARKET

DESTINATION COUNTRY

0-21

M1

UNIT No.

ABB.

RXD-572S (X07-3030-21)

RXD-552 (X00-293X-XX)

Y M

ABB.

X T EEUROPE

AUSTRALIA

U.K.

COUNTRY

GEMERAL MARKET

PX

DESTINATION

2-71

0-21

UNIT No.

K P

ABB.

RXD-A51 (X00-2930-10)

Q

CANADA

U.S.A.

COUNTRY

DESTINATION

RUSSIA

0-10

UNIT No.

2-72

UNIT No.

RXD-452E (X00-2932-72)

ABB.

RXD-452W (X00-2932-72)

ABB.

E1

DESTINATION COUNTRY

COUNTRY

EUROPE

DESTINATION

UNIT No.

2-72

UNIT No.

J

E

T

X

Y

M

ABB.

JAPAN

EUROPE

GEMERAL MARKET

AUSTRALIA

U.K.

COUNTRY

PX

0-01

2-72

0-22

RXD-452 (X00-293X-XX)

RXD-A41 (X00-2930-11)

P

K

ABB.

DESTINATION

CANADA

DESTINATION

U.S.A.

COUNTRY

0-11

UNIT No.

COUNTRY ABB.

RUSSIA 2-72

Q

RXD-402W (X00-2932-72)

DESTINATION

UNIT No.

RXD-402E (X00-2932-72)

COUNTRY

EUROPE

DESTINATION

UNIT No.

2-72

ABB.

E1

UNIT No.

KU.S.A.

EUROPE

U.K.

CANADA

2-72

E

0-11

T

P

RXD-402 (X00-293X-XX)

DESTINATION COUNTRY

UNIT No.

ABB.

RXD-572S (X00-2930-21)

GEMERAL MARKET

DESTINATION COUNTRY

0-21M1

UNIT No.

ABB.

COUNTRY

RUSSIA 2-71

Q

ABB.

2-71E1EUROPE

RXD-552W (X00-2932-71)

DESTINATION

RXD-552E (X00-2932-71)

DESTINATION COUNTRY

UNIT No.

ABB.

RXD-502E (X00-2932-71)

DESTINATION

RXD-502W (X00-2932-71)

DESTINATION

RUSSIA

COUNTRY

EUROPE

Q

2-71

UNIT No.

ABB.

E1 2-71

UNIT No.

RXD-502 (X00-293X-XX)

DESTINATION

EUROPE

CANADA

COUNTRY

U.S.A.

0-10

EP2-71

UNIT No.

K

ABB.

S2

S1

RXD-502 (X14-493X-XX)

RXD-502E (X14-4932-71)

RXD-502W (X14-4932-71)

RXD-402E (X14-4932-72)

E1EUROPE

Q

RUSSIA

DESTINATION

COUNTRY ABB.

DESTINATION

COUNTRY ABB.

EUROPE E

CANADA

COUNTRY

U.S.A

P

ABB.

K

DESTINATION

DESTINATION COUNTRY EUROPE

ABB.

E1

2-71

UNIT No.

2-71

UNIT No.

0-10

2-72

UNIT No.

RXD-402W (X14-4932-72)

RXD-402 (X14-493X-XX)

RXD-552E (X14-4932-71)

RXD-A51 (X14-4930-10)

RXD-552 (X14-493X-XX)

RXD-552W (X14-4932-71)

RXD-572S (X14-4930-10)

DESTINATION

RUSSIA

COUNTRYQABB.

U,K

EUROPE

CANADA

T

E

P

DESTINATION

U.S.A

COUNTRYKABB.

E1EUROPE

DESTINATION COUNTRY ABB.

Q

RUSSIA

DESTINATION COUNTRY ABB.

GENERAL MARKET M1

GENERAL MARKET

EUROPE E

AUSTRALIA

U,K

X T

M

DESTINATION PX

COUNTRYYABB.

DESTINATION

COUNTRY ABB.

CANADA P

DESTINATION

U.S.A

COUNTRYKABB.

2-72

UNIT No.

0-11 2-72

UNIT No.

2-71

UNIT No.

2-71

UNIT No.

0-10

2-71

0-10

UNIT No.

0-10

UNIT No.

RXD-452E (X14-4932-72)

RXD-452W (X14-4932-72)

RXD-A41 (X14-4930-11)

RXD-452 (X14-493X-XX)

Q

RUSSIA

DESTINATION

COUNTRY

EUROPE

ABB.

E1

DESTINATION

COUNTRY ABB.

EUROPE E

ABB.COUNTRY

GENERAL MARKET

AUSTRALIA

U,K

JAPAN

T

X J

PX Y

M

DESTINATION

CANADA

U.S.APK

DESTINATION

COUNTRY ABB.

2-72

UNIT No.

0-11

UNIT No.

0-11

UNIT No.

WH4

WH3

WH1

WH2

CN3

A

Rch 4

Lch 3

Rch 2

Lch 1

(OPTICAL)

J3

PRE OUT

S.W

Rch 2

Lch 1

J2

SPEAKERS

FRONT

A

NO

A

NO

A

NO

A

YES

A

YES

A

NO

A

YES

A

YES

A

NO

A

NO

A

NO

A

YES

NO

A

NO

A

E1

33 33

1

12

1

12

1

11

1

21 21

1

112

1

4

1

4

ON

OFF

15 15

11

3

1

3

1

5

21

2

1

15

3

5

1

2

1

20120

1

33 33

1

F2

T1

220-240V

110-120V

1

4

1

4

10 10

11

10

1

10

1

11

44

17117

1

(K,P)

(Y,M,M1)

(Q) (X)

(T,E,E1)

: AC120V 60Hz : AC110-120V/220-240V~

50/60Hz : AC220V~ 50Hz : AC240V~ 50Hz : AC230V~ 50Hz

(J) : AC100V 50/60Hz

F1

2

4

5

(X13-761X-XX)

(X07-303X-XX) (A/2)

(X07- ) (B/2)

(X00-293X-XX) (A/3)

(X28-298X-XX) (D40-1618-05)

(X04-1313-84)

CD MECHANISM

MPX UNIT

USED (Q) TYPE

MECHANISM

CASSETTE

SURROUND UNIT

MATRIX

(X00- ) (B/3)

(X00- ) (C/3)

PRIMARY UNIT

SECONDARY UNIT

PRIMARY UNIT (X00- ) (C/3)

USED (M,M1,Y) TYPE

USED EXCEPT (M,M1,Y) TYPE

POWER SUPPLY UNIT

(M,M1,Y) TYPE

USED

(K,P) TYPE

USED (M,M1,Y) TYPE

DISPLAY UNIT (X14-493X-XX) (A/6)

(VOL)

(X14-) (B/6)

(JOG)

(X14-) (C/6)

(X14-) (D/6) (CD,DECK)

RECORD/PLAYBACK UNIT

SUB-CIRCUIT UNIT

(MGC-E9001)

POWER AMPLIFIER UNIT

EXCEPT USED

(HEADPHONE)

(X14-) (F/6)

RXD-A41/452/452E/452W RXD-A51/552/552E/552W/572S RXD-402/402E/402W RXD-502/502E/502W

RXD-402/452/502/552/572S/A41/A51

WIRING DIAGRAM

ACEGIBDFHJ

X04-1313-8X

1

15

1

11

2

E

B

E

B

E

B

E

89

1

2

1

4

8

5

2

1

3

20

11011

16

12

15

B-RCH

A-RCH

B-LCH

A-LC

BDECK

ADECK

L-OUT

A.12V

A.GND

L-OUT

R-OUT

B.12V

B.GND

C61

W15

R48

R47

R110

R61

VR4

R62

VR3

R89

C23

W12

R114

R95

C51

C63

C19

C55

C54

C58

C59

C26

C20

C11

C12

W16

C25

C60

W52

R33

C52

R93

R96

C56

C29

C30

C27

C28

R58

R59

R44

C57

W31

C7

C8

C71

C74

C77

C76

C72

W20

C53

C9

C10

R34

C24

C14

C13

R113

W49

C32

C31

L6

W9

R130

C100

W54

R51

R52

R55

R106

R53

R71

R54

R56

R37

R36

R46

R42

R43

R41

R40

R45

R38

R39

R21

W53

R20

R22

R24

R23

R19

R15

R14

R16

R18 R17

R32R31

R35

R30

R26

R25

R27

R29

R28

R94

R97

R100

R99

R98

R88

R87

R90

R92

R91

R101

R112

R111

R121

R124

R123

R122

R104

R103

R102

R105

R109

R108

R107

R86

R63

R64

R69

R68

R67

R125

R50

R49

R57

R60

R70

R81

R79

R82

R85

R84

R83

R74

R73

R72

R75

R78

R77

R76

R4

R5

R6

R1

R2

R3

R7

R13

R8

R9

R10

C15

C16

C1

C3

C2

C4

C68

C22

C21

C35

C34

C33

C70

C75

C36

C69

C6

C5

C67C64

C62

C66

C73

C65

C17

C18

R66

R65

W8

L1

L2

W6

W22

W13

W10

W4

W35

W14

W2

W39

W42

W36

W3

W11

W7

W5

W28

W21

W47

W19

W1

W51

W25

W27

W33

W46

W38

W48

W37

W45

W34

W17

W40

W43

W24

W26

W29

W30

W18

W32

W50

W41

W58

W23

W56

W55

W57

1

BEAT.C

MECHA. CONT.

BIAS. OSC.

DPSS

DOLBY

A/B PB&REC EQ.

SPEED. ADJ.

B-RCH

L5

VR7

L3

L4

VR2

VR5

VR8

VR1

B-LCH

117 211

1

8

111

1

8

22 12

1

8

9

16

EBBEEB

EB

BBE

E

B

E

B

E

EB

BE

9

1

16

31

1

11

E

B

1

16

8

9

B

BE

BEE

E

B

E

EB

E

EB

B

BE

E

EB

B

BE

B

E

Q23

Q24

Q21

Q22

Q25

Q26

Q19

Q20

D5

D10

D9

Q16

Q15

Q18

Q4

Q5

Q2

Q3

Q11

Q12

Q7

Q9

Q28

Q29

Q27

Q17

D1

D2

D7

D4

D6

D3

Q14

Q13

Q6

Q8

Q10

Q1

D8

IC6

IC5

E2

CN1

IC4

IC2

IC3

IC1

WH2

CN5

CN3

WH3

E1

X28-2980-10

PC BOARD(Component side view

1

MPX UNIT

2

3

4

5

6

7

Refer to the schematic diagram for the value of resistors and capacitors.

)

15

RECORD/PLAYBACK UNIT

16

Kenwood RXD-402, RXD-402-E, RXD-402-W, RXD-452, RXD-452-E Service manual

CONTENTS / ACCESSORIES / CAUTIONS

Contents

Accessories

System configuration

Cautions

EXTERNAL VIEW / DISASSEMBLY FOR REPAIR

EXTERNAL VIEW

DISASSEMBLY FOR REPAIR

BLOCK DIAGRAM

CIRCUIT DESCRIPTION

1. Initialization

2. Destination list of TUNER

3. Test mode

4. Main microprocessor

5. IC controller

ADJUSTMENT

Amp adjustment

Tuner adjustment

CD player adjustment

Cassette Deck adjustment

WIRING DIAGRAM

MPX UNIT

RECORD/PLAYBACK UNIT