Kenwood KD-CU-4049, KD-CU-349-S, KD-CU-349-R, KD-CU-349-G, KD-CU-349-A Service Manual

CD RECEIVER

KDC-208U/248U/4051UGM/4051URM KDC-MP148U/MP248U/U3049 KDC-U349A/U349G/U349R/U349S KDC-U4049

SERVICE MANUAL

Tuner setting adjustment after replacing E2PROM

After replacing E2PROM (IC771 on X34), tuner setting adjustment is needed. The adjustment is that to perform the “TUNER Setting Adjustment Mode” (Page 5) in the “Tuner Test Mode Specification” of “Production Test Mode”.

B53-0833-00 (N) 217

KDC-248U : Panel assy (GE20280-020A)

KDC-248U

KDC-MP148U : Panel assy (GE20280-002A)

KDC-MP148U

KDC-U349A/G/R : Panel assy (GE20277-019A) KDC-U349S :

KDC-U4049 : Panel assy (GE20280-019A)

Panel assy (GE20277-006A)

KDC-U349

KDC-U4049

KDC-4051UxM : Panel assy (GE20280-012A)

KDC-4051UM

KDC-MP248U : Panel assy (GE20277-017A)

KDC-MP248U

TDF SPARE-PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME KDC-208U Y33-3390-11 TDF-120D KDC-248U Y33-3380-10 TDF-128D KDC-4051UGM KDC-4051URM KDC-MP148U Y33-3390-10 TDF-MP11DU KDC-MP248U Y33-3380-11 TDF-MP12DU KDC-U3049 Y33-3400-20 TDF-U3049 KDC-U349A Y33-3400-24 TDF-U349A KDC-U349G Y33-3400-23 TDF-U349G KDC-U349R Y33-3400-21 TDF-U349R KDC-U349S Y33-3400-22 TDF-U349S KDC-U4049 Y33-3403-01 TDF-U4049

Y33-3400-26 TDF-4051UGM Y33-3400-25 TDF-4051URM

Mounting sleeve assy (GE34134-001A)

* Tap screw (2x8) (N80-2008-43)

* Depends on the model. Refer to the parts list.

* Car cable (E30-xxxx-xx)

* Screw set (N99-1757-15)

* Car cable (E30-6937-05)

Hook (GE40510-001A) x2

This product complies with the

* Carrying case (W01-1710-05)

* Hard case assy (A02-2757-13)

* Remote control unit (RC-405) (A70-2104-05)

Trim plate (GE20274-001A)

This product uses Lead Free solder.

RoHS directive for the European market.

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U

2

KDC-U3049/U349A/U349G/U349R/U349S/U4049

ELECTRIC UNIT (X34- )

IC1

IC701

IC702

RESET IC

BU3.3V

S701

RESET SW

to DC

CONNECTOR

EXT REMO (OE REMOTE)

CN701

CN601

to GND

PANEL DET

J1

TUNER

ATOMIC

2

ANT

A9V

12

IC161

BU5V

PANEL3.3V

E-VOL

IC771

E2PROM

BU3.3V

111

22

USB5V

A9V

SYSTEM u-COM & USB HOST

Q701

PANEL3.3V (REMO DRV)

CONNECTOR

MUTE

1

5

1

ILLUMI+B

R902,903

LOAD RESISTOR (FL FILAMENT)

FL+B

∗

R631,632

LOAD RESISTOR

BU3.3V

8

3

9

IC540

SERVO IC (OASIS)

CD1.5V CD3.3V

IC530-532

1

CD 3.3V CD 1.5V

i-Pod CP

IC80

2

1

∗

Q780

BU5V

SW3.3V

IC301

POWER AMP

Q321,341

RCA MUTE

MUTE

2

SW3.3V

to MECHA

Q951,952

SW 3.3V

BU

∗

J321

RCA-OUT

BU5V

BU DET

RESET

BU3.3V

DC-CN etc

PHONE ACC5V / BU-DET PON-FL PS1-1 / PS1-2 / PS1-3 PS2-1 / PS2-2

IC501

MOTOR DRIVER

CD MECHA

VDD3.3V

PS1-1 / PS1-2 / PS1-3 PS2-1 / PS2-2 P-ANT

ACC5V

ILLUMI+B

AUDIO

CD

CD3.3V

USB5V

BU3.3V

IC931

SW 3.3V

PHONE

BU DET

SW5

CD

BU5V

2

FL+B

BU5V

D891

PHONE

Q970

BU DET

Q971

SURGEDET

IC901

POWER SUPPLY IC

IC961

HI-SIDE SW

IC981

USB5V (DC/DC)

BU3.3V

SW3.3V

CN901

DC-CN

PHONE

SP-OUT

ACC

BU

P-CON

BLOCK DIAGRAM

J602

IC602

EN601 FL601

F-AUX

REMO

ROTARY ENCODER

SW3.3V

SWITCH UNIT (X16- )

Q602

PANEL SW3.3

USB CN

CN603

KEY

FL

9

ILLUMI

KEY MATRIX

1. Panel

SEARCH

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

TEST MODE

ACCENT

RETURN

VOL

2. How to enter each Test Mode

Test Mode name Operation

Production Test Mode Press and hold [1] key and [3] key and reset.

Service Test Mode

DC Error Information Mode Press and hold [3] key and [6] key and reset.

Transition to Test Mode shall be available during DC Error detection.

✳

In the STANDBY source, while pressing and holding [2] key, press [6] key for 7 seconds.

(Starting to press [2] key and [6] key at the same time can not be entered into the mode)

3. How to release each Test Mode

• Reset

• Momentary voltage drop

• ACC OFF

• POWER OFF

• Panel Detach

4. Production Test Mode

Default status immediately after the mode activation

●

It shall be same as normal RST start in other settings than the following.

Details

Period to prohibit TEL/LINE MUTE immediately after activation

(normally 10 seconds)

Mecha Initialize Action Prohibited

Difference in action

Various setting value

Write-in to E2PROM when detecting a DC error Prohibited

Demo Mode ON/OFF Setting Menu Prohibited

Power supply during ACC OFF (Back Up On) MUTE terminal turns OFF after 2 seconds

BEEP sound Beep with short-pressing in any functions

Volume 30 (-10dB)

BASS BOOST/LOUD OFF

EQ NATURAL

Fader/Balance Center

DEMO Mode Setting OFF

AUX Setting ON1

NAVI MUTE Setting for Japan Detecting function valid (ATT)

1 second

3

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

TEST MODE

Mode structure

●

Some Test Modes change according to the current source.

The following table shows the current source in Set and the related test mode status.

Model source Test mode

POWER OFF -

Standby STANDBY Test Mode

TUNER TUNER Test Mode

CD CD Test Mode

USB -

AUX -

Mode content

●

Syscon shall display the following information after entering this mode. The operation shown below shall be workable.

Display content Details

PRO TEST

The display is released when another operation is executed.

The display will blink if sub clock is not functioning.

STANDBY Test Mode Speciﬁ cation

●

Operation Display content Details

1 (Toggle)

2 (Toggle)

3 (Toggle) All lights ON/OFF

4 (Toggle)

5 (Toggle) Preout switch

6 FL display short check

SOURCE

transition

RETURN Mode release

■

Syscom version display

All lights ON All lights ON (Switch with other display)

Serial No. display

All lights ON

Information display iPod

veriﬁ cation IC mount sta-

tus display

All lights ON

Mode release

SYS0∗–

SN 00000000

iPod :

iPod :OK

iPod :NG

iPod :

SWP R E R E A R

SWP R E S UB –W

∗∗∗

∗∗

Syscom version (Refer to Syscom Version Table)

Serial No. display (8-digit)

Display as it is in hex

✳

All lights ON (Switch with other display)

All lights ON/OFF with toggle

iPod veriﬁ cation IC mount status display

Blank: Verifying

OK: Veriﬁ cation IC mounted

NG: Veriﬁ cation IC not mounted

: Non-iPod support model

∗∗

All lights ON (Switch to other display)

Switch Preout with toggle

All lights ON → All lights OFF → odd terminal and

even terminal of the largest grid ON alternatively

every 125ms → odd terminal ON → even terminal

ON → (repeat continuously)

Return to Normal mode

Tuner Test Mode Speciﬁ cation

●

The following display shall be indicated according to the TUNER status.

Status Display content Details

TUNER IC Normal Error

TUN CON NG

4

Communication to TUNER IC not available (indicated unless the

mode is in Clock Display Mode).

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

TEST MODE

Status Display content Details

For models that TUNER adjustment is necessary but not done

Adjustment not imple-

mented

RDS Speciﬁ ed data re-

ception

Operations



Operation Display content Details

ACCENT TUNER IC display

BAND

SEARCH

DISP

■

BAND switch

operation

S meter voltage

judgment display

Shift to TUNER

setting mode

ERR∗A97.9A

∗

RDS T E ST

ATOM RDS

FM1 – 3 A 9 7.9A

S–MTR xx:OK

S–MTR xx:NG

S–MTR xx:––

(adjustment value: 0x00 or 0xFF), the following TUNER Test Mode

functions are valid (“∗ERR∗” display is continuing).

Display “∗ERR∗” blinks with 250ms interval.

Turn OFF P-CON forcibly if PS=RDS TEST is received.

P-CON recovers with Power OFF/ON.

Display TUNER IC version

Execute Band Switch as shown in the following table every

time Band key is pressed in each type.

S meter value xx: Current S meter value

Determination result OK: Within S meter voltage spec

NG: Out of S meter voltage spec

– – : No LEVEL OFFSET adjustment

Shift to TUNER setting mode after switching to 98.3MHz

SG setting values

Frequency: 98.3MHz, Modulation frequency: 1kHz,

Modulation mode: MONO, Modulation: OFF,

Deviation: 40kHz, ANT input level: 34dBμV

TUNER Setting Adjustment Mode



1. Operation (Operation after performance of above-mentioned “Shift to TUNER setting mode” item)

Operation Display content Details

Select TUNER adjustment method (AUTO) using BAND key.

BAND

■

(Toggle)

AUTO Adjustment

Mode

A S–xx L–xx

S-xx: Current S meter value (Hex)

L-xx: Level offset value (Hex)

In case that the level offset value is not adjusted (0xFF or

✳

0x00), display “– –”.

2. Operation in AUTO Adjustment Mode

Operation Display content Details

VOL PUSH Adjustment start

A S–xx L–xx

Start adjustment (Start Auto adjustment, and transit to Suc-

cess/Failure display depending on the adjustment result)

3. Status display during adjustment

Status Display content Details

When the adjustment value write-in to E2PROM (IC771 on X34) has

Adjustment success

Adjustment failure

ADJ OK :x x

ADJ NG

been completed.

xx: Level offset value (HEX)

When the adjustment value write-in to E2PROM (IC771 on X34) has

failed

4. Operation of return to TUNER Test Mode

Operation Display content Details

RETURN Mode release

Return to TUNER Test Mode.

5

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

TEST MODE

BAND switch list

●

Type BAND1 BAND2 BAND3 BAND4 BAND5 BAND6 Details

K

M (LW)

M/C

CD Test Mode Speciﬁ cation

●

It shall be the same as normal RST start in other than the below setting.

Playback track from top No.9

Default for Display mode Play time

Operations in CDDA playback



Operation Display content Details





1

(Toggle)

3

4

5

6

Special track up

Special track

down

HC1/2 Judge-

ment Information

Display

Normal Display

Special jump

operation

Special jump

operation

Special jump

operation

Special jump

operation

FM1 FM2 FM3

q

FM1 FM2 FM3

q

FM1 FM2 FM3

q

Content Details

CD HC1

CD HC2

CD –––

T–01 1:23

AM - -

w

MW/LW - -

w

MW

w

Pressed Track up depend on different cases.

Case 1: Track>23 No.9→No.15→No.10→No.22→No.12

No.13→No.14→No.9

Case 2: Track<8 No.1→No.2→No.3→Until Last Track

Case 3: 8<Track<22 No.9→No.15→No.10→Until Last Track

One-by-one Track down by sequence follow Track No.

HC1/2 Judgement Infomation.

HC1: HC1 mecha (for this model)

HC2: HC2 mecha

– – –: Impossible of Judgement

Normal Display

Jump to No.28

(Scratch 0.7mm for MUSIC line vibration test)

Jump to No.14 (Damaged disc TCD-731RA Tr14)

Jump to No.15

Set Volume value at 26 (for error operation FCT check of 20Hz

0dB DC protection)

Jump to No.9 if the other than track No.9 is playing.

Jump to No.22 if the track No.9 is playing.

e

SW1

r

SW2

q→w→q

q→w→e→r→q

…

→

5. Service Test Mode

Default status immediately after the mode activation

●

It shall be same as the normal activation.

Mode structure

●

Service Test Mode is enabled only STANDBY source.

Mode content

●

Syscon shall display the following information after entering this mode. The operation shown below shall be workable.

Display content Details

SRV T ES T

6

The display is released when another operation is executed.

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

TEST MODE

Common operation mode for only STANDBY sources

●

Operation Display content Details

1

3

4

5

■



■

Development name

status display

Power ON duration

display

Disc action duration

display

Disc Eject number

of times display

Disc Eject number

5

of times clear

Forced Power OFF

information display

Forced Power OFF

info clear

1003WE2–200

PONTM 0H x x

PONTM xxxxx

CDTM 0 H x x

CDTM xxxxx

EJCNT xxxxx

POF F – – –

POF F PNL

Development name – Version (Micom)

00~50 are displayed in “xx”.

For less than 1 hour, the display is indicated per 10 min-

utes.

00001~10922 are displayed in “xxxxx”.

MAX 10922 (hours)

0~50 are displayed in “xx”.

For less than 1 hour, the display is indicated per 10 min-

utes.

00001~10922 are displayed in “xxxxx”.

MAX 10922 (hours)

Display Disc Eject number of times.

MAX 65535 (times)

Clear Disc Eject number of times by pressing for 2 seconds

when it is displayed.

No forced Power OFF

Forced Power OFF due to Syscon-Panel communication

error.

Clear forced Power OFF information by pressing for 2 sec-

onds when it is displayed.

CD Error Information Display Mode

●

Operation Display content Details

DISP

Move

between

BAND

(Forward

search)

items with

/

CD error information

display mode

CD Mech error log

display

CD Load error info

display

CD Eject error info

display

CD time code error

count information

display (count skip)

CD time code error

count information

display (no count

update)

MECH A ER #:x x

LOAD ER #:x x

EJECT ER#:xx

CNT L OS E

CDDA :x x

CDROM :x x

CNT STAY

CDDA :x x

CDROM :x x

Transit to CD error information display mode.

Mech error history 1,2,3 (latest)

#: History No. (1,2,3)

xx: numbers of errors, “--” when there is none

Load error switch 1,2

#: Switch No. (1,2)

xx: numbers of errors, “--” when there is none

Eject error switch 1,2,3,4

#: Switch No. (1,2,3,4)

xx: numbers of errors, “--” when there is none

CD time code error count information (count skip) mode

display

CD-DA error count numbers

xx: numbers of errors and “--” when there is none

CD-ROM (compressed ﬁ le) error count numbers

xx: numbers of errors and “--” when there is none

CD time code error count information (count not updated)

mode display

CD-DA error count numbers

xx: numbers of errors and “--” when there is none

CD-ROM (compressed ﬁ le) error count numbers

xx: numbers of errors and “--” when there is none

7

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

TEST MODE

Operation Display content Details

DISP

■

DISP Mode release CD error information display mode release

6. DC Error Information Mode

Default status immediately after the mode activation

●

It shall be same as normal activation.

Mode structure

●

DC Error Info Mode is enabled regardless of current source.

Mode content

●

Syscon shall display the following information after entering this mode. The operation shown below shall be workable.

DC ERR

D

COK

CD error information

clear

Display content Details

When DC error is detected (in case that one of capacitor leakage, wrong connection or other

detection is found)

When DC error is not detected (in case that none of capacitor leakage, wrong connection or

other detection is not found)

CD error information all clear

Mode operation speciﬁ cation

●

Operation Display content Details

When wrong connection & DC error in other detection dura-

tion is detected

When wrong connection & DC error in other detection dura-

tion is not detected

Clear detection information when wrong connection & DC er-

ror in other detection duration is displayed. (Clear data ﬂ ash)

Display detecting number of times in capacitor leakage de-

tection duration (0~4)

Clear number of times for detection information in capacitor

leakage detection duration. (Clear data ﬂ ash)

1 DC ERR1display

1 DC ERR1 clear

■

2 DC ERR2 display

2 DC ERR2 clear

■

DC1 ER R

DC1 OK

DC2 4

DC2 0

7. FM/AM channel space switching

Procedure Note

While Power OFF, pressing and holding [1] key and [5] key, and press [SRC]

key to Power ON.

FM200kHz/AM10kHz ↔ FM50kHz/AM9kHz

8

EDCBA

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

PC BOARD (FOIL SIDE VIEW)

CD PLAYER UNIT X32-6430-00 A/2 (LVB11003-001A)

X32 B/2

SL1

CN102

1

2

15

1

R1

B1

3

SW4

SPBLK

SP+ RED

FE-

WHT

LO-

WHT

LO+ YEL

FE+

YEL

REST ORG

MGND

ORG

1

4

SL2

CN101

26

5

SW3

SW2SW1

6

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

7

9

0

3

4

L702

W

F G H I J

KDC-208U/248U/4051UGM/4051URM/MP148U/MP248U KDC-U3049/U349A/U349G/U349R/U349S/U4049

1

2

3

4

5

6

PC BOARD (FOIL SIDE VIEW)

ELECTRIC UNIT X34-69xx-xx (GEB10301-201A)

R4

C19

C591

C590

CBE

EBC

R357

R596

R576

R342

R251

C18

C22

R577

R358

D321

R5

C14

R416

B551

PRE OUT

C341

R341

Q321

C340

C251

R11

R8

C15

R594

C592

C593

R583

B532

D540

R550

C102

J321

B313

R340

B314

L7

R6

R7

16

C20

B2

B533

R413

CN502

C254

R343

R323

B3

C508

C101

R332

R256

B170

R534

R258

C252

R333

C8

C21

C174

R546 R547

EB

Q540

R414

R330

R254

B311

R417

C509

C331

R331

R324

X1

C162

C330

B192

C550

C510

C512

C351

R351

CBE

EBC

B4

B5

B534

25

B173

R165

R548

R502

26

R352

R334

B169

B171

B172

C173

B184

B185

C551

R349

Q341

B165

B166

B167

R163

R503

C586

R459

J1

C26

L1

C2

L9

L2

L3

R586

R593

D113

R490

L8

C27

R3

C583

ANTENNA

C368

R322

R320 C253

R257

R373

R255

R253

Q251

D1

D2

L10

R9

C28

R591

R597

R585

D102

D112

R1

C29

R10

C1

R2

C6

L5

C12

L6

C11

32 17

C3

C10

C4

1

L4

C7

C5

R579

C587

85

R595

IC580

1

C588

R598

C585

C111

B527

B528

R592

4

R528

R581

R580

B529

R599

R582

R575

R529

C595

C594

B552

B531

C23

R587

R589

C584

C582

1

C320

B521

CBE

EBC

R252

C24

C16

R588

R590

R468

2

C321

R321

D251

C17

IC1

C13

C25

R584

R305 R780

C314

D782

D341

B163

B164

R162

R353

R310

C170

C350

C171

TH301

C310

R461

C316

C169

R168

C308

C168

R350

R347

IC161

B174

R167

R161

C161

B181

C575

C576

R412

R411

R520

B180

B182

R506

R519

C503

C511

B176

B177

B178

B179

R723

B183

R541

B503

R402

R545

R549

C553

R552

R512

C515

R467

C557

C556

C501

R517

C504

C516

36 19

R501

1

B535

C318

C160

R477

C177

C543

IC301

C172

B189

R531

R510 C506

C309

R404

R532

R513

B301

C178

D781

C542

R515

C514

B305

B304

B303

B302

Q781

Q780

B190

R540

R533

R507

B309

B191

C540 C541

C517

R518

C518

R504

R306

R401

R491

R783

EB

1

IC540

40

R553

B306

EB

B542

80

41

C312

B187

Q782

C574 C573

C561

R728

C563

R111

D301

C311

R781

24 2

25 1

R303

R304

C313

C307

C317

R400

C319

B315

B168

1528

B186

141

C166

L161

B175

D780

R478

SDA

L12

L11

SCL

R432

R726

R722

B543

C544

C545

R403

C546

C547

C548

C549

R542

R544

R543

20

C552

R505

C558 C554

C555

R509

R516

C505

R508

21

C559

R410

R406

R551

R511

IC501

18

C507

R514

C513

C560

C305

EB

R405

L562

B536

R101

B310

B188

RST

D503

C100

R447

D783

C727

C534

C572

R574

C570

L561

R554

R555

C596

R415

B307

C306

R784

R573

C568

C562

B537

R307

D132

R302

R418

21

34

C571

61

60

C565

C564

B538

B308

R754

R779

R471

R557

R558

R492

C315

Q971

IC532

C535

C569

R974

EB

R753

C532

R463

C567

R570

L563

X540

L531

R462

D502

B908

D971

R778

B793

IC531

21

34

R572

R566

C566

R565

B921

B920

B919

R971

R973

B792

R571

R562

R556

B925

B912

R481

Q970

R972

D970

41

IC771

R787

58

B791

IC530

C533

C530

R530

R409

R408

B540

B539

R568

R567 R569

L565

L564

R564

R563

R708

R713

R715

B762

C706

R970

EB

B790

21

34

R485

R560

R446

R465

R466

R464

B541

R736

C110

S701

R727

R731

C901

D901

B901

R976

R975

C723

R904

R426

C531

R559

R749

R735

R422

R451

C932

C954

R479

R450

R718

SN

R742 R744

R739

B760

B761

C713

R740

SWDIO

R428

R561

85

IC80

14

R82

R110

R745

B911

R445

R430

L901

C931

B789

R439

R440

C714

50

51

R752

C80

R751

R102

R100

D101

B924

R444

R741

R431

D11

IC9

21

34

R48

R7

S

R429

R750

D100

B933

R443

Q951

R701

7

10