SERVICE MANUAL - vicol audio

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COPYRIGHT © 2006 Victor Company of Japan, Limited. No. .... the Parts List in the Service Manual. ... the Parts List of Service Manual may create shock, fire, or.
SERVICE MANUAL CD PORTABLE SYSTEM SERVICE MANUAL 12 2006 MB593

RC-EZ35SB,RC-EZ35SE, RC-EZ35SEN,RC-EZ35SEV, RC-EZ31BB,RC-EZ31BE, RC-EZ31BEN,RC-EZ31BEV SERVICE POLICY No service part is available for this model. Exchange only.

COPYRIGHT © 2006 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS 1 2 3 4 5

PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

COPYRIGHT © 2006 Victor Company of Japan, Limited

No.MB593 2006/12

SPECIFICATION RC-EZ35 Compact disc player section

Radio section

Cassette deck section

General

Type

Compact disc player

Signal detection

Non-contact optical pick-up (semicondicator lazer)

Number of channels

2 channels

Frequency ranges

FM 87.5 MHz - 108.0 MHz AM 522 kHz - 1 629 kHz

Antennas

Telescopic antenna for FM Ferrite core antenna for AM

Track

4-track 2-channel stereo

Motor

Electronic governor DC motor for capstan

Heads

Hard permalloy head for recording/playback, magnetic head for erase

Fast wind time

Approx. 120 sec. (C-60 cassette)

Speaker

10 cm × 2 (4 Ω, 3 W)

Power output

4 W (2 W + 2 W) at 4 Ω (10% THD) (IEC268-3)

Output terminals

PHONES × 1 (Ø 3.5 mm, stereo)

Power supply

AC 230 V , 50 Hz DC 12 V ("R20/D (13F)" cells × 8)

Power consumption

17 W (at operation) 1.5 W (at standby)

Dimentions

435 mm (W) × 156 mm (H) × 241 mm (D)

Mass

Approx. 2.8 kg (without batteries)

Type

Compact disc player

RC-EZ31 Compact disc player section

Radio section

Cassette deck section

General

Signal detection

Non-contact optical pick-up (semicondicator lazer)

Number of channels

2 channels

Frequency ranges

FM 88 MHz - 108.0 MHz AM 530 kHz - 1 600 kHz

Antennas

Telescopic antenna for FM Ferrite core antenna for AM

Track

4-track 2-channel stereo

Motor

Electronic governor DC motor for capstan

Heads

Hard permalloy head for recording/playback, magnetic head for erase

Fast wind time

Approx. 120 sec. (C-60 cassette)

Speaker

10 cm × 2 (4 Ω, 3 W)

Power output

4 W (2 W + 2 W) at 4 Ω (10% THD) (IEC268-3)

Output terminals

PHONES × 1 (Ø 3.5 mm, stereo)

Power supply

AC 230 V , 50 Hz DC 12 V ("R20/D (13F)" cells × 8)

Power consumption

13 W (at operation) 1.5 W (at standby)

Dimentions

435 mm (W) × 156 mm (H) × 241 mm (D)

Mass

Approx. 2.8 kg (without batteries)

Design and specifications are subject to change without notice.

1-2 (No.MB593)

SECTION 1 PRECAUTION 1.1

Safety Precautions

(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

(2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling. (5) Leakage shock hazard testing After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. • Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.). • Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000Ω per volt or more sensitivity in the following manner. Connect a 1,500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC

AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

0.15 F AC TYPE

1500

10W

Place this probe on each exposed metal part.

Good earth ground

1.2

Warning

(1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage.

1.3

Caution

Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

1.4

Critical parts for safety

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)

(No.MB593)1-3

1.5

Important for laser products 1.CLASS 1 LASER PRODUCT 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments. 3.CAUTION : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure.

!

Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.

REPRODUCTION AND POSITION OF LABELS and PRINT WARNING LABEL and PRINT

1-4 (No.MB593)

SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MB593)1-5

SECTION 3 DISASSEMBLY 3.1

Main body

3.1.1 Removing the Rear cabinet assembly (See Fig.1 to 4) (1) Remove the four screws A and five screws B attaching the Rear cabinet assembly. (See Fig.1) (2) Disconnect the Rod antenna wire from post pin of the Tuner board assembly. (See Fig.2) (3) Disconnect the connector wire from Amplifier board assembly connected to connector CN101 of the Power transformer board assembly. (See Fig.3) (4) Disconnect the connector wire from Capstan motor connected to connector CN102 of the Power transformer board assembly. (See Fig.3) (5) Remove the solder the grand wire from Tuner board soldered to shield plate. (See Fig.4)

B

CN102

CN101

A B

Power transformer board Fig.3

B Fig.1

Rod antenna wire

Ground wire

Shield plate Fig.4

Tuner board assembly Fig.2

1-6 (No.MB593)

Post pin

3.1.2 Removing the Top cabinet assembly (See Fig.5, 6) (1) Disconnect the connector wire from Cassette mechanism assembly connected to connector CN205 of the Amplifier board assembly. (See Fig.5) (2) Disconnect the connector wire from speaker connected to connector CN301 of the Amplifier board assembly. (See Fig.5) (3) Remove the solder the grand wire from Cassette mechanism assembly soldered to Amplifier board assembly. (See Fig.5) (4) Remove the three screws C attaching the Top cabinet assembly. (See Fig.6)

CN205 CN301

Ground wire Fig.5

C

C

C Fig.6 3.1.3 Removing the Cassette mechanism assembly (See Fig.7) (1) Remove the four screws D attaching the Cassette mechanism assembly.

D

D

D Fig.7 (No.MB593)1-7

3.1.4 Removing the Amplifier board assembly (See Fig.8, 9) (1) Disconnect the card wire from LCD board assembly connected to connector CN701 of the Amplifier board assembly. (See Fig.8) (2) Disconnect the connector wire from Amplifier board assembly connected to connector CN901 of the CD servo board assembly. (See Fig.8) (3) Disconnect the connector wire from CD door switch connected to connector CN906 of the Amplifier board assembly. (See Fig.8) (4) Disconnect the connector wire from Amplifier board assembly connected to connector CN101 of the Tuner board assembly. (See Fig.9) (5) Disconnect the connector wire from Amplifier board assembly connected to connector CN801 of the Headphone jack board assembly. (See Fig.9) (6) Remove the three screws E attaching the Amplifier board assembly. (See Fig.8)

CN701

CN906

E

CD servo board assembly

CN901 Fig.8

CN801

Fig.9

1-8 (No.MB593)

Amplifier board assembly

E

3.1.5 Removing the Headphone jack board assembly (See Fig.10) (1) Remove the solder the grand wire from LCD board assembly soldered to Headphone jack board assembly.) (2) Remove the one screw F attaching the Headphone jack board assembly.) (3) Disconnect the connector wire from Function board assembly connected to connector CN707 of the Headphone board assembly.

F

Solder point

CN707

Ground wire Fig.10 3.1.6 Removing the Tuner board assembly (See Fig.11) (1) Remove the solder of the grand wire from Function board assembly soldered to Tuner board assembly. (2) Disconnect the connector wire from Function board assembly connected to connector CN102 of the Tuner board assembly. (3) Remove the tree screws G attaching the Tuner board assembly.

G

G Solder point CN102

Fig.11

(No.MB593)1-9

3.1.7 Removing the Function board assembly (See Fig.12) (1) Disconnect the card wire from LCD board assembly connected to connector CN103 of the Function board assembly. (2) Remove the four screws H attaching the Function board assembly.

H

H

H

CN103

H

Fig.12 3.1.8 Removing the Power switch board assembly (See Fig.13) (1) Disconnect the connector wire from LCD board assembly connected to connector CN709 of the Power switch board assembly. (2) Remove the three screws J attaching the Power switch board assembly.

J

J

CN709 Fig.13

1-10 (No.MB593)

3.1.9 Removing the LCD board assembly (See Fig.14) (1) Remove the two screws K attaching the LCD board assembly.

K

K Fig.14

3.1.10 Removing the CD mechanism assembly (See Fig.15) (1) Removing the four screws L attaching the CD mechanism assembly.

L

L

L

L Fig.15

SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT.

(No.MB593)1-11

< MEMO >

SECTION 5 TROUBLESHOOTING 5.1 BLOCK DIAGRAM 5.1.1 Block diagram for RC-EZ35 FM ANT.

FM RF

BPF

FM OSC

IC501

IC101 FM F/E, IF/DET/MPX

AM ANT.

AM RF/IF/DET

IC102

FUNCTION SELECT

PLL

EQ/BASS/VOL CONTROL

PLAY OUT IC201

REC IN

R/P AMP R/P HEAD +8V

AM OSC

BIAS OSC

+8V

TA SW.

TU SW.

+ M TAPE MOTOR

RESET CD DOOR SW.

DECK SW

L SPEAKER BOX LCD

DISC

IC301

PICKUP

IC701

IC901 RF + D-SERVO + MP3 DECODER+1M DRAM

POWER AMP. KEY

MCU

R.C. P-CON + M SPINDLE MOTOR + M SLED MOTOR

R SPEAKER BOX +5V

IC902 SERVO DRIVER

Q411

Q902

+8V Q401 D2061

RECTIFIER

POWER SW. AC IN

+8V CD SW.

2-13

5.1.2 Block diagram for RC-EZ31 R/P HEAD FM ANT.

FM RF

FM OSC.

IC201 IC101 FM F/E, IF/DET/MPX

BPF

AM RF/IF/DET.

AM ANT TU-5V REG.

AM OSC

L SPEAKER

IC501

IC301 POWER AMP.

VOL SIGNAL SELECT SW.

R SPEAKER DISC

M+ LCD IC901

IC902

DSP

M-

PICKUP

RECTIFIER KEY

SPINDLE MOTOR

TA SW.

M IC903 MOTOR/ACTUATOR DRIVER

SLED MOTOR

CASS MOTOR

M

CD SW.

Q902

CD DOOR LEAF SW

2-14

Q401

DC SUP SW

TRANSFORMER

TU SW.

MCU

AC INPUT

5.2 STANDARD SCHEMATIC DIAGRAMS for RC-EZ35

C405 + 330U

Q408 9014 R414 470

R315 47K

R416 5.6 1 / 4W

R313

120

R307

102

4 3 2 1

Q402 9014

R402

R505 100

R424 SHORT

+ R317 4.7K

R516 22K

MOTOR CASSETTE DECK

Q501 9014

+

D403 C528 22U

R422 2.2K

Q413 9014

IN4148

R401 3 2 1

3 2 1

330 1 / 4W

Q401 D2061

IN4148

R506 3.9K

C410 220U / 25V

CW1102

D401

C519 100U

CN1102

+

R513 4. 7K

CN206

DC+

+ C404 220U / 16V

9014

1

D1104 IN4001

22K R305 18K

C526 500P

B+

D1103 IN4001 403

C510 + 22U

4 3 2 1

FX1101 2A 125V

AC-IN1 D1101 IN4001

C509 4.7U

R504 15K

C513 272M

C511 0.1M

C527 + 1U

6 5

C1103

C530

6 5

C401 223

4. 7K

1

3

14

+

+

CL

30

403

29

C1101

28

M

R518

2

JK301

CN1101

VREF

NC

27

D1102 IN4001

26

C1104 403

25

C1102 403

24

LOUT

LESL0

LIN

23 C514 1U

Q50 2

3

12

11

10

13

9

8

4

L302 15UH

100U

C409

R502 15K

DI

CE

VSS

TEST

RBASS2 LBASS2

+ C501 4.7U

C502 0.1M

0.1M

C503 RBASS1

RTRE

ROUT

C504 1U

C505

RIN

C315 470U / 25V

C403 470U / 16V + ZD401 8V2

GND

TO CN801

22

CN401

-

R512 1.2K

R515 1.2K

L303 15UH

R311 100

Q303 9014

HEADPHONES JACK

+

Q414 9014

R426 1K

R514 3.3K

Q503 9014

+

L301 15UH

R501 15K

R428 68K

4

D301 IN4148

R301 8.2K

+ C412 47U

C517 1U

GND

5

102

1

2

Q304 8550

+

3.3K

6

21

3

R312 10K

Q405 A928A

C531

4

5

R314 10K

R310 100

C532

+ + C515 1U

8 7

RSEL0

R4

20

19

6

C512 0.1M

C516 1U

L4

L2

18 +

7

8

IN4148

2.2

LC75342

68K

R517 15K

R519

17

C518 100P

C529 100P

16

L3

R522 2.7K

R511

TO P / R BOARD CN202

NC

R521 2.7K

CN205

9

+

9

10

11

IC501

C534 OPEN

10

12

1K

102

LTRE

R523 15K

13 R2

NC

R520 15K

3 4 5

+

14

R3

15

D406

R304 18K

272M

C521 1U +

C506 + 1U

R1

OPEN

R503 3.9K

+

L1

CN905

R507 15K

TO CD BOARD CN901

C508 1U

C533

C520 500P

LBASS1

R508 68K

R427

VDD

C525 153M

SHORT

C507 1U

1 2

Q415 9014

R425

R510 4.7K

C523 153M

D404 IN4148

R308

C407 + 1000U / 25V

D302 IN4148

Q407 8550

D405 IN4148

C316 + 470U / 25V C309 0.1M

R316 4.7K

4

R509 4.7K

TO TUNER BOARD CN101

Q409 8550

3 2 1

3 2 1

C311 1000U +

C308 100U

C314 + + 1U C303 100U

470 CN105

4

3 2 1

R SPEAKER

C1105 6800U / 25V +

R412

Q302 1936

33K

Q406 9014

9014 Q410

R303 1K

4

IC301 UTC8227

C408 100U

120

R417 3.3K

R415 10K

R413 10K

R411 10K

+

5

R407 47K

C307 100U

C301 3.3U

+

CW301

CN301 + C312 1000U

+

7

1K

Q411 8050

C306 100U +

6

R404 10K

R408 10K

R302

+

R306

+ C402 22U

10K

C304 102

R405

C305 102

Q403 8050

Q301 1936

ZD402 6V2

TO MCU BOARD CN701

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

R406 470 1 / 4W

Q404 9014

22

D402 IN4148

R419 150

C313 + 1U

R409

R410 330

R421 10K

CN710

+

C406 47U

ZD404 5V6

Q412 9014

L SPEAKER

R309 2.2

C310 0.1M C302 100U

2

CN906

ZD403 3V

TO CD DOOR LEAF SW.

5.2.1 Primary and Amplifier section

AC-IN2 POWER / TRANSFORMER

ACINPUT

BT -

BATT

R403 10K + C411 10UF

R420 5.6K

R423 10K

R418 10K

SW801- A CN801

TO AUDIO BOARD CN206 1 TO CONTROL BOARD CN707 2 CN711

R805 10

SW719 Rese t

2-15

5.2.2 Front section

TRACK

MP3

FOLDER

ALL

REPEAT

PROGRAM

RANDOM

INTRO SLEEP kHz MHz

LCD701

WMA

S17

S16

43

42

41

69

P_ TU( 0 ,Nch)

S9

70

P_ CD( 0 ,Nch)

S8

71

IF_ IN(0 ,Nch)

S7

LC877C64C-57K1

S5

74

CD_ RST( 0 ,Nch)

S4

75

CD_ CE( 0 ,Nch) TUEV_ CE( 0 ,Nch) CD_ CMD(0 ,CM) CD_ DATA ( I,-) CD_ CLK IF_ CLK( 0 ,CM) / TX

S3 S2

19

S11 S10

32

S9

SW713 FM MODE

SW716 TUNER

SW717 TAPE

SW718 PROGR /CLK

29

28 S28 27 S27 26 S26 25 S25 24 S24 23 S23 22 S22 21 S21 20 S20 19 S19 18 S18 17 S17 16 S16 15 S15 14 S14 13 S13 12 S12 11 S11 10 S10 9 S9 8 S8 7 S7 6 S6 5 S5 4 S4 3 S3 2 S2 1 S1

S29

REPEAT

28

S5

27

S4 S3

25

S2

24

S1

C712 104

1 2

R749 100

R709

390

R748 470

R747 1.2K

R746 2K

R740 1.2K

R739 3K

R737 3.3K

R738 820

102

C706

C713 2200UF - +

47K

R791 4.7K

L701 100UH

B02 B04 B01

2-16

R792 6.8K

R793 8.2K

R794 10K

R795 12K

C718 220UF - +

C719 104

AS

EU3

EU2

47K JP1

R704

R703 3.9K Q701 9015

SW705 SW707 STOP F.B. SW706 SW701 SW702 SW703 SW708 SW704 PLAY RANDOM DISPLAY FOLDER+ FOLDERF.F.

EU1

R713

3.3K

C705 102

C707 102

R712

Q704 9015

R782

R781

R780

3.3K

1.2K

4.7K

B05

B06

Q703 9015

1 2

2 1 4.7K

SW714 PRESER UP

26

B06 R787

1.2K

S6

R719 100K

10K R718

R784

390

29

20

6.8K

R750

R708 4.7K

R786

3.9K

S8

ZD701 3.9V

C720 102 D705 IN4148

R783

2.2K

S7

22

R711 4.7K

R707 4.7K

C703 104

R716 47K

D701 IN4148

C714 2.2UF

Q702 9014

R785

30

R725 10K B03

REM701

10 9 8 7 6 5 4 3 2 1 CN706

B[01:06]

31

R714 47K

R720 1K

D703 IN4148

30

5 4 3 2 1

34 33

5.6K R736

- +

CN707 TO BEAT CUT BOARD CN711

B01 B02 B03 B04 B05

S12

R734 3.3K

31

35

CN703 1 2 3 4 5 6 7 8 9 10

B01 B02 B03 B04 B05 B06

21

IN4148

R733 10K

S13

R751

R717 100K

LED701 Standby

S14

36

23

IF_REQ( I,-)

V_CHK( I,-)

SW_CD( I,-)

KEY1( I,- )

KEY2( I,- )

18

17

16

15

68K

R706

10K D702

C715 102

37

US2

14

B01 B02 B03 B04 B05 B06

B[ 01:06]

390

R715

LED702 Amber Back Light

S15

US1

13

KEY0( I,- )

OPT_SYS1(I, - )

IR(I,-) ST(I,-) V_GND(0,CM)

C704 102 R705 56K

12

C702 102

C708 15P

IF_ RST(0,Nch)

OPT_CT (I, - )

CF2( 0)

VSS1

CF1(I)

VDD1 11

10

9

C711 22P

R723 4.7M C709 15P

R741 100

680P

8

R724 680K C710 22P X702 8MHz

XT2( 0)

S1

7

38

S6

TR_ M+ ( 0 ,Nch)

6

S[1: 34]

C717 680P

IC701

5

CLASSIC

39

S10

4

POP

CN709

AMUTE(0,CM)

3

JAZZ

CN704

S11

2

ROCK

40

VDD3

80

HBS

VSS2

68

78

STEREO

CN708 TO TUNER BOARD CN102

S16

S18

S19

S20

S22

S30

S18

44

67

TR_ M- ( 0 ,Nch)

33

34

COM04 COM03 COM02 COM01

S19

45

S17

S21

S20

S22

46

S21

S24

S23 S23

S24

S26

S25 S25

S27

S26

S28 S28

S27

S30

S29 S29

S31

S30

S32

JOG+(I,ex-PU) JOG-(I,ex-PU) SYN_REC(I,ex-PU)

47

S13

C721

680P

680P C723

C722

R752 47K R735 47K

48

S14

L702 100UH

R702 100 R710 100

49

S12

1

D704 IN4148

50

S15

XT1(I)

R745 47K

R731 47K

R732 47K

R730 1K

51

VSS3

IF_OUT (I, -) / RX

R701 100

52

P_ PCON(0 ,CM)

79

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

53

VDD2

/RES(I,ex- PU)

R729 1K

54

66

77

1K

COM4

55

X701 32.768KHz

R728

COM3

56

65

76

100

COM2

TUEV_CL(0,CM)

R744

57

R743 100

1K

58

TUEV_D0( I, -)

R753 47K COM[01:04]

R727

COM1

TUEV_DI(0,CM)

C724

680P

C716

102

27K

COM04 64

73

5 4 3 2 1

62

COM03 63

R726 1K

CN701

TO AUDIO BOARD CN710

COM02

59

R742 100

CN702

COM01 61

72

R721 47K

TO CD BOARD CN903

R722

C701 100P

R754 47K

60

32

USB

SW709 STANDBY

SW710 VOL UP

SW711 VOL DOWN

SW712 HBS

SW715 EQ

61

40

R913 1K

68P

VVSS3

VVDD3

DVDD1.8

39

R915 2.2K

1 2 3 4 5

R914 27K

C922 104

- +

38

DVSS

DVDD

36

37

FSEQ

C2F

35

34

DEFECT

33

PUIN

32

DMUTEB

31

VVDD1

PCKIST

R912 29 6.8K 30 C915 473

2.2M

1UF R910

R907 15K

C916

- +

C921 100UF

C917 104

R911

680

PDOUT1

VVSS1

26

SPD0

SLD0

AVSS

PDOUT0

LDS

C923

CE DVSS DVDD

R916 5.6K

CL

R918 Open

TEIN LDD

CN903 R919 1K

R917 1K

C924 68P

DI

R921 1K

C925 104

TE

R950 10K

R920 100K

DO

R924 10K

27K

RESB

TEC

R930 0 R928 0

R922

FIN

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

62

3.3K

R933

R935 22K

INTB1 INTB0

C919 104

C918 104

-

C942 104

+ -

Q902 B764

+ -

C950 2.2UF

17

16

29

9

10

11

12

13

REG_B

8

REG_G

7

VIN2

V01-

NC

6

VG2

V01+ 5

V02+

VG1 4

V02-

VIN1 3

R926 150

R906 12K

NC

MUTE 2

GND

VCC1

IC902 LA6548NH

1

1 2 3 4 5

15

RESET

18

VIN3

19

VIN3G

20

V03+

NC

21

V03-

30

GND

22

NC

23

V04-

24

V04+

25

VG4

26

VIN4

27

VREF

VCC2

28

CD

+

C941 470UF

L901 26UH

TO AUDIO BOARD CN905

CN901

L903 100uH

- +

C949 104

MOTOR1 SLED

C948 100UF + -

C943 33UF

SW901 Limit Switch

MOTOR2 SPINDLE

64

65 VVSS2

CONT2

EIN

R909 27 680 28

C914 104

IC901 LC78690W

JITTC

+ -

M

VPDOUT2 VCOC2 VPREF2 VVDD2

CONT1

C944 104

M

63

C930 100UF + 67

66

DVSS

RFMON

STCK STREQ

R932 0

TO MCU BOARD CN702

- +

C920 100UF 68

70

69

71

XOUT

XVSS

R937 220

CONT0

L902 22uH

R946 33

72

XIN

73

74 XVDD

LRVDD

LCH0

75

76

78

77 LRVSS

3 4 5 6 7

TEST0

FEC

R908 6.8K

R948 100

DIN

25

C913 100UF

DVDD1.8

R940 150

R941 150 C947 104

+ -

R904 470 C912 104

CIN BIN

AVDD FD0 TD0

C908 103

C911 103

STDATA

23

C946 100UF

79

80 - + C907 10UF

+ -

AIN

24

Q901 2SA608NF

LRSY DATACK DATA

22

C910 100UF

C927 104

TEST1

VEEF

R934 22

C928 104

LPF

21

R903 3.3

C905 103

C906 102

+ -

R949 100

C904 473

X901 16.9344MHz

C937 102

+ -

PHLPF

20 19 18 17 16 15 14 13 12 11 10

R925 8.2K

C909 104

R902 8.2K

1 2 3 4 5 6 7 8 9 10 11 12 13 14 T+ 15 F16

683

C938 102

C929 1UF

R936 150

8

C903

VC VCC E D A B C F GND LD VR PD F+ T-

EFMIN RFOUT

C931 104

9

C902 103

R947 100K

CN902 PICKUP

C901 472

1

C945 104

2

R901 330

SLC0 AVDD RCH0

C940 473

R943 100

C926 104

C934 104

DOUT

R938 47

R939 33

C932 104

C933 + 330UF

C939 104

R942 100

+ - C935 4.7UF

DVDD

+ - C936 4.7UF

AMUTEB

5.2.3 CD servo section

14

R905 10K

2-17

5.2.4 Cassette mechanism section

C259

9

8

7

6

5

4

2

1

BA3308

3

IC201

C258

C205

+

100P

100P

10U

222M

C210

+

100U

C206

+

100

C214 104 R219

+

1000U

C215 R207 27

5K6

R205

22K

333M

1.5K

R215

10K

MUTE 10

Mic Rec. 8

R Out 6

10k

Rec.R In 7

10K R222

8050

+

10K

SW201- 5 - B

R221

C805 220U

C225 223

+

18

Beat Cut 9

10U

103M R803

17

16

Q802

C220

C803 332M

C806

1.5K R220

C804 223M

100

R214

R801

T801 3630

500P

15K

C217 7P

C226 7P

3

C801

9014

C212 102M

8K2

5.6

2

R216

14

SW201- 6- A 1

C208 222M

6K8

C211

9014

R206

R209

15

13

4U7

C207

C204 4U7

102M

Q201

6k8

11 12

SW201- 5 -A

R208

C209

222M

10

Q801

47K

R802

CN201

SW201-1 -B

+

CW201

R804

R / CH.

AC / B

27

4

470K

R / CH

C203 100U

4

AC / B

7P

GND

R203

R202

+ R204 8K2

5K6 R210

3

C227

3K9

3

R / CH

R201 47K

R211

2

R229

2

GND

L / CH

3K9

1

C216 7P

9

R225

1

222M

C201

L / CH. L / CH

8

7

6

C202

5

4

333M

SW201 - D - A

C213

SW201 - 1 - A

C260 223

GND

5

+8V

4

CN202

Rec. L In3 L Out 2

C219 103

SYNC 1

TO MAIN BD.CN305 24 8 - STDS13- 108

Q203 9014

BIAS =80 KHz

2-18

Q202 9014

5.2.5 Tuner section

R127 220

C96 12P

13 DET

104

3 4

C123 103 TP12(L)

TO AUDIO BOARD CN105

AGG

27K

- +

R107 100K

C92 102

R150

C117 4U7

Q108 2SC3330U

R147 47

ST D0 CE DI CL

C115

103 - +

R106 680

ZD101 5V6

- +220U

8050

104 C165

C162 223

C125

*

100UH

C102

GND

L105

R152 330 R151 330

223 CF103 10.7MA5 - A

C114

1M

Q109

C116 100U

100P C97

C95 100P

103

C141 47P

11

C149 104

C99

C140 100P

TO CONTROL BOARD CN708

IF

12 NC

CN102

C144 47U - +

R103

100K

R123

C142 100P 13 AMIN

FMIN

14

C143 100P 15 VDD

PD

16

17 AIN

AOUT

19

18

4.7k

LC72131 I01

10

B04

9

B03

8

B02

7

B01

6

D0

5

CL

DI

CE

XIN

GND

R110 680

R131 1K

R130 1K

GND

R129 1K

GND

VSS

XOUT

IC102

1

C154 20P

X101 7.2MHz

C100 223

20P

- +

102

C152 100U

2

C158 104

20

C148 223

C153

C150 104

R146 2K2

3

R142 2K7

C91

C151 223

R139 2K7

4K7

4

R141 R144 10K

R138 2K2

+ C147 1U

C146 103

R145 220 R140 2K2

TU- R GND TU- L +8V

2

R108 33K

10K

14 ST / MONO

1

CN101

AMIFIN

FM / AM FMIFIN

11

10

R134 18K

12

16

15

AMIFOUT

LOUT

ROUT ST

R111 150K

9

8 R104 27K

104

C128 C93 102

CF105 T103 450KHz

Q110 9018F R154 22

C163 104

CDA10.7MC1- A

R119 3K3 C120 0.22U - + C155 8p C118 3U3 - + CF104 R118 10

C121 0.22U - +

C130 222 18

MPXIN IFBUFF

DETOUT

7

6

GND1

FMIFOUT

C129 + 4U7 17

C131 20P R100 820 FMOSC

21 VCC2 VCC1

C113 100U

- +

C104 10U

C127

C124 103

2070

R153

C137 102

C132 18p

C105 223

- +

R101 47K

TP11(R)

R109

C160 104

R117 10

C164 104

R135 18K

C107 56p

H=7. 2+ - / 0. 5V(CA / KR / AU)

TP8 (E)

TP16(H)

CF102 10. 7MA5 - A

4

5

GND2

FMRF2 AMOSC

3

2

REG

AMRF

T101 612R

C108 390P(P) VD103 SVC348

20 R121 19 10

L102 2T5 5MM 22

23

FMRF1

IC101 LA1823

H=7. 2+ - / 0. 5V(XE / UK)

L=1.0+ - / 0.1V

R143 10K

103

1

AM COIL ANT 65 : 25

R120 1K2

R124 220K C156

C133 102

SVC201 VD102

SVC201

C139 30p

R122 10

CT102 10P

Q107 9018H

C134 6p

24

GND

C135 102

L101 3.5T 4.5MM

L100

4.5T 3.5MM

C101 18p

R102 1K

D101 IN4148

D102 IN4148

C159 15p

C122 102

C103 6p

R128 10 C126 104

CF101

CT101 VD101 10P

GND BPF 87~108MHz

H=7. 2+ - / 0. 5V(ALL)

AMVT: L=1.4+ - / 0.1V

C94 102

R125 100K

R126 100K

FM-ANT

FMVT: L=1.8+ - / 0.1V

104

C157104

C145 102

C138

R132

10K

D104 IN4148

2-19

5.3 STANDARD SCHEMATIC DIAGRAMS for RC-EZ31 5.3.1 Primary and Amplifier section

1. DISCONNECT POWER CORD BEFORE SERVING 2. RECOMMEND THE UNIT BE OPERATED BY DC 12V VOLTS DURING TROUBLE SHOOTING 3. COMPONENTS MARKED WITH

B/C

5

Rch

4

Lch

3

GND

2

+8V

1

HAVE CRITICAL

CHARACTERISTICS.ONLY REPLACE WITH THE COMPONENT OF THE SAME TYPE NEMBER. 4. SUBJECT TO CHANGE WITHOUT NOTICE

R395

2.2K

C315 1

1K

IN4001 D302

100uF 2

C307 14

3

4

5

R315

180K R307

C303 152M C319

100uF

2.2K 6

12

11

13 C308 100uF 10

470uF/25V C330

Q305 9014C

R310

SP302

D300 IN4148

C402 220U/25V +

R329 33K

MOTOR

100K Q303

D301 IN4001

9015C

LEAF-SW

CN1102

REMARK *

R330 10K

R300 10K R320

-

154M

D308

JP VERSION :F110 1 2A125V

R319 27k

XE VERSION :F1101 T2AL250V DC

SW301-A

C1102

+12V +8V

2SD2061

GND

CN303 TO CN1101

R401

IN4148 D401

C401 0.022

+8V

C404

+12V

330 1/2W

GND

47UF

CD TAPE TUN

3300UF / 25V

C1105

TO CN303 CN1101

DC+

8.2V DZ401

R506 10K

2-20

+ C2 102P

2200UF/25V

2200UF / 25V C403

R505 10K IN4148 C505

D305 IN4148

-

470uF/16V C314

C320

4.7K

47uF 9 C306 100uF/16V C305

7

8 R308 180K C304 152M

10K R328

C310

GND

D307

R503 10K

R504 10K IN4148

B9

A VEE

8 VSS

1UF

1UF

7

6 INH

Y1 5

C510

1UF

10

C509 X3 11

12 X0

X Y3

3 Y

4 C503

D306

1UF 13 C502

1UF

1UF C395 X1 14

1UF C508 X2 15 2 Y2

16 R501 1K 1 Y0

VDD

2K2 R502

100U / 10V C501

Q329 9014C

IC501 TC4052

SP301 +

C1 102P

8550 Q306

Q401

1UF

CD+8V

9014C

C506 1UF

3.3U C391

Q369

C4 102P

CN332

DC+ SW301-B

JK301 HEAD

10T

C3 102P

LFSW

C504

CDGND

18K R393

R391 3.9K

MUTE

R389 10K

CD-R

47UF

AGND

4K7 R368 4K7 R367

C378

CD-L

18K R392

C394 103M

CN906

103M C393

3.9K R394 3.3U C392

C377

0.1UF

C507 1UF

C372

47UF

R374

100

CN305

3.3K

10T

L301

470uF/16V

GND R373

120

IN4148

SYNC SYNC LEDLED+

120 L303

R314

C313

LFSW CD TAPE TUN

R313

L302 10T

R309 4.7K

D309 D310 IN4148 IN4148

R332 1k R333

1k R331

R302 2.2K R306 7.5K

1UF

IN4148

5K6

100UF C323

47UF

R312 5K6

C317

C329 100UF/10V

IN4148

C316

R311 5K6

R371 8.2K

10K

R321 120K

D311

C318 100UF D314

R379

500P 120K R380

C373

500P

R328

D1936

R399 10K

100UF C376

3.2k

9014 Q391

4.7K

R303 15K

R326

Q302

R396 10K

R375

CN309 C327 0.01

4K7 R378

C374

1.2K

47UF C326

R372 330 4K7

R304 4.7K

1UF

R370 8.2K

DZ301 5.1V

47UF C371

R381 1.2K

C302 1UF

C324

102M

CN307

9014C Q392

154M

IC301 UTC8227

R316 5.6K

473M

50KA

5.6K

C321 R323

SYNC

R398

1UF

C309

VR301-A

C311

TO CN204

R301

15K

10K R327

R322 R222 10K

Q371 S8050

C301

C325 1UF

473M 5.6K

C322 R324

10 9 8 7 6 5 4 3 2 1

B/C TA R/R R/O GND +8V R/L L/O

VR301-B 50KA

102PF

R369 1K

CN307 TO Rec BD CN202

102M

C312 C369

R305 7.5K

Q301 D1936

220UF/25V

CN201 (TO:CN101)

0.04

AC D1102

AC LINE

IN4001

D1104

IN4001

C1104

0.04

T1101

CN1101

D1101 IN4001 C1103

0.04

D1103

IN4001

F1101

C1101 0.04

BATT 12V

5.3.2 Front sction

SW705 F.F

SW703 STOP

SW702 F.B

9

8

7

6

5

4

3

REM701

R706

Q702 9014

1.5K

SW701 MEMORY

SW704 P/P

LCD701

R702

SW706 REPEAT

2

1

REP M

18

17

SEG2

15 16

11 12

COM3

14

9 10

COM1

13

7 8

6

3 4 KEY11

5

1 2

2.7K

REM

R703

2.7K

CN702

S6

KEY01

GND

+5V

SEG5

SEG4

SEG3

SEG1

COM2

KEY14

KEY13

KEY12

KEY02

LED701

18PINS CN701

TO CN203

2-21

5.3.3 CD servo section

CLOSE C938 104

C950 104

+ C928 103

C949 100P

100U

R946 10

C919 103 Q903 2SA1342

C941 682M

C929 10U

C931 0.33U

TBC 47

3 E

FSC 46

4 F

DGND 45

180K 180K

6 TE-

SLC 43

R909

R908 150K

104M

SLI 44

RFS 42

7 TE 2K2

C903 333M

IC901

8 TESI

RFSM 41

LA9242M 9 SCH C906 0.1U

C906 330P

CN901

C908 C907 104M

R913

CV+ 40

(ASP)

10 TH

CV- 39

11 TA

RW 38

12 TD-

HFL 37 TES 36

14 JP

TOFF 35

C961 R941 12K

R944 100K

R939 R940 22K

C925 222M

330

C923 330P

SPG

SP-

SPO

SLEO

SLD

SL-

SL+

25

26

27

28

29

30

31

R924 33K

56K R930 56K +

+

VCC2

VREF

VIN4

VG4

V08

V07

18

17

16

15

14

13

RES

19

CD

20

VUN3

21

VG3

22

V05

23

IC903

SL +

M

-

3

4

SL-

4

5

P-SW

5

6

GND

6

MUTE

C2F

VDD

RW

LOUT

REMOTE

L/RVDD

VSS 39

11 TMDO

SEG1/COM1 38

12 CLV+

SEG2/COM2 37

13 CLV-

SEG3/COM3 36

14 HFL

SEG4/S1 35 SEG5/S2 SEG6/S3

16 TOFF 17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

VCC1

MUTE

VIN1

V01

V01

V02

V03

V04

VG2

VIN2

REG-OUT

REG-IN

1

2

3

4

5

6

7

8

9

10

11

12

R932 10K

+

C917 104

Q902 B764

C916 220U

2-22

C963 104

+ C952 470U

L901 26uHX2

REM RANDOM/KEY02 KEYIN/KEY11 PROG/KEY12 DIGI/KEY13 DIGI/KEY14 SEG1/COM1 SEG2/COM2 SEG3/COM3 SEG4/S1 SEG5/S2 SEG6/S3 SEG7/S4 SEG8/S5 GND +5V

TO CN701

34 33

32

C968 104

+

2

NC 40

(DSP)

10 EFMIN

R934 150K

C915 4U7

R931 2K2

CSC1469XH

1

DIG2/KEY14 41

LC78601RE

9 EFMO

+

+

SL+

DIG1/KEY13 42

IC902

R933 150K

R927 6K8

C954 2U2

24

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

32

C958 332

R926 10K

R929 R922 1K5

C910 333M

R928 1K

15K

C912 153M

R918 68K

C959 332M

C914 0.33U

SPIN-

PROG/KEY12 43

JP+ 33

R925 3K3

SPIN+

6 VVDD

NC/S6 SEG8/S5

SPI 24

CN903 16 PINS

NC/KEY01 45 KEYIN/KEY11 44

8 VSS

TO CN906

48

5 ISET

10K

15P(N)

+8V AGND ROUT AMUTE GND LOUT

R955 220

RANDOM/KEY02 46

3 PDO

DOUT

SP 23

C948 102M

6 5 4 3 2 1

49 DMUTE

PUIN

AGND 22

R961 5.6K

FSEO 47

7 FR

C913 22U

3

50

SLEO-

FE21

C911 104M C956 332M

2

51

SLEO+

FE 20

R919 15K R921 27K

1

52

SLO-

FA19

C947 102M

C957 100P

FA 18

R923

FD 17

FD-

R960 5.6K

R936

R938 1K

TGL 34

R920 22K R959 10K

M

53

15 TES

16

SP

R935 10K

104

R942 10K

R917 3K3 15 TO

-

54

4 VVSS C924

R914 100K 13 TD

55

PLK

27K

R937 470

332

15K

R916

56

CLOCK

330

333M

57

3.3VDD

473M

R911

+

JP-

C902

C926

58

2 4.2M

C937 104

5K6

R910

TO CD DECK

C927 2U2

59

CDIN

C901

5 TB

+

60

RWC

R906

R945 4K7

61

JP-

R905

62

SEG7/S4

2 FIN1

63

DEF1

ROUT

1 270K

L/RVSS

NC

R943 48

CLOSE

49

PMTSL1

50

DRF

51

DEF

52

XIN

FIN2

53

CL

54

CLK

PHI

LF2

55

DE

BHI

56

DAT

LDS

LDD

57

FSS

CC1

58

DRF

59

VCC2

60

VR2

61

REFI

62

TGL

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

+

63

V06

VREF COM* E D A B C F GND LD VR MD F+ TT+ F-

C964 3U3

64

100K

R957 220

+

64

CN902

+ C945 3U3

C944 680P

100K

1 R904

+

C939 100U

R958 10K

+

100K

R903

R956 220

C962 104

C955 102

100K

R902

Q904 2SA1342

C942 220U

X901 16.934MHz

+

10K

C933 473M

R901

D902 IN4148

SW902 CW904

CD DOOR SW

+

C932 47U + Q901 2SA608NF

CN904 10K

C951 103 C940 104

+

XOUT

C960 104p

XVDD

C953 220U

R907 100

GND D901 IN4148

C936 1U

+

JP+

C935 103

C934 10U

C918 100U

C930

RES

+

5.3.4 Cassette mechanism section

1. DISCONNECT POWER CORD BEFORE SERVING L/CH.

9

8

7

6

5

L201 15UH +

100U

+

222M

100

104 R219

1000U

C214

C215 R207 27

+

C212 102M

8K2 C211

5K6

R205

R209

C213 333M

R208

C206

Q201

9014

15

C210

+

4. SUBJECT TO CHANGE WITHOUT NOTICE

R203 47K

8K2 + C208 222M

14

333M

13

5K6 R210

11 12

R225

10

3K9

222M

C209

CN201

S201-5-A

R211

S201-1-B

4

C203 100U

820

AC/B

R229

R264

GND

3K9

R/CH

3

R201 47K R204

C227 7P

470K

L202 15UH

GND

R202

HAVE CRITICAL CHARACTERISICS. ONLY REPLACE WITH THE COMPONENT OF THE SAME TYPE NUMBER

C226 7P

100P

R206

820

AGND

S201-6-A 2 3

10K

R216 10K

R220

17 18

CN204

8050 +

SYNC

10U

C260 223

C220

C225 223

103M R803

16

15K

R804

9014

220U C805

+

C806

S201-5-B

Q802

5.6

500P

C804 223M

332M

Q801

100

T801-A 3630

C801

22K

R801

AGND

R802

1

C803

9014

R/L L/O

10K

R222

10K

+8V

Q203

R224

9014

TA R/R R/O AGND

1.5K

R215

Q202

10K

R221

1.5K

103

C219

B/C

R214

2

9

27

R265

8

C216 7P

L/CH.

7

C258

C204 4U7

5 6

C201 222M

4

10U

6k8

CN203

3. COMPONENTS MARKED WITH

47P

47P L204 15UH

6K8

S201-D-A

C259 100P

S201-1-A

C261

C205 +

L203 15UH

4

AGND

1

4

C262

3

AC/B R/CH.

2

2. RECOMMEND THE UNIT BE OPERATED BY DC 12V VOLTS DURING TROUBLE SHOOTING

C207 4U7

R/CH

3

AGND

C202 102M

2

1

1

L/CH.

IC201 BA3308

AGND

SYNC

9 8 7 6 5 4 3 2 1

CN202 TO CN304

2-23

DZ101 5.6V

102P C117

2-24 68P C121

R116 10

CF103 10.7M

C102 1UF

C101 1UF

CF102 10.7MHZ

R103 150 B/C Rch

+8V

SW102A

C107 153M

R105 18K

R104 18K

3.9K

R108

SW102B

TO CN201

100K R101

100K R102

C108 153M

R-OUT

LPF1 15 L-OUT 14

10 TUN LED 11 ST LED QUAD

MPX IN 17 LPF2 16 8 FMIF IN 9 GND

C112 0.22UF

C113

823M

R107 12K

C106 473M

C103 1UF

C111M Q101

CN101

473P C109

C111 220UF 473P C110

FM ANT

13

AFC 19 DET-OUT 18

6 VCC 7 AMIF IN

AM ANT 120T:15T

12

AM OSC 20 5 VGC

21

120P C118

CF101 465KHz

T101 10002

C120 22UF

22

23

24

VC3

473P C126

C119 0.47UF

IC101 2111A

1 FM RFIN AM RFIN 2 RF GND FMRF OUT 3 AM LOW RF VCC 4 MIX OUT FM OSC

47K R117

C115 2P

R110

15

2.5T L101

NC

22P

VC1

473P C125

D101 IN4148

D102 IN4148

473P C127

C114

3.5T

VC2

L102

680P C105

C104 330P

5.3.5 Tuner section

R109 10K

T103 1010

AM

VC4 SW101

FM

R106 22K

MONO ST

C123 5P

Lch

GND

< MEMO >

Victor company of Japn, Limited Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan

(No.MB593) Printed in Japan VPT