Onkyo DX-7555 Service Manual

SERVICE MANUAL

SERVICE MANUAL

DX-7555

Ref. No. 3911

122005

/ 092006

COMPACT DISC PLAYER

MODEL DX-7555

Black, Silver and Golden models

BMPP
SMPP
GMGT
GMGR
GMDT
BMDC
SMDC

230-240V AC, 50Hz
230-240V AC, 50Hz
220-230V AC, 50/60Hz
220-230V AC, 50/60Hz
120V AC, 60Hz
120V AC, 60Hz
120V AC, 60Hz

ON STANDBY

OPEN/CLOSE

1 2 3

4 5 6

7 8 9

10

10/0 CLR

ENTER

SETUP

RANDOM REPEAT

RC-625C

SEARCH

MEMORY

ENTER

DISPLAYDIMMER

SAFETY-RELATED COMPONENT
WARNING!!

COMPONENTS IDENTIFIED BY MARK ON THE

SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE

CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.

REPLACE THESE COMPONENTS WITH ONKYO

PARTS WHOSE PART NUMBERS APPEAR AS SHOWN

IN THIS MANUAL.

MAKE LEAKAGE-CURRENT OR RESISTANCE

MEASUREMENTS TO DETERMINE THAT EXPOSED

PARTS ARE ACCEPTABLY INSULATED FROM THE

SUPPLY CIRCUIT BEFORE RETURNING THE

APPLIANCE TO THE CUSTOMER.

SPECIFICATIONS

DX-7555

Signal readout :

Frequency response :

SN ratio :

Audio dynamic range :

THD (total harmonic distortion) :

Audio output

Digital optical :

Audio output / Impedance

Digital coaxial :

Audio output / Impedance

Analog :

Power supply :

Power consumption :

Standby power consumption :

Optical non-contact

2 Hz - 20 kHz

111 dB

100 dB

0.0027%

-22.5 dBm

0.5 Vp-p, 75 ohm

2.0 V (rms), 470 ohm

AC 230 - 240 V, 50 Hz

AC 220 - 230 V, 50/60 Hz

AC 120 V, 60 Hz

16 W / 14 W

European : 0.5 W

North American : 0.3 W

Others : 0.4 W / 0.3 W

Dimensions (W x H x D) :

Weight :

Operation condition

Temperature, humidity :

Supported discs :

Specifications and appearance are subject to change for
improvement without prior notice.

435 x 111 x 405 mm

8.0 kg

5 - 35 , 5 - 85 % (no condensation)

CD, CD-R, CD-RW, MP3

(Discs that have not been properly finalized may only be

partially playable or not playable at all.)

SERVICE PROCEDURE-1

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

DX-7555

This set employs a laser. Therefore, be sure to follow
carefully the instructions below when servicing.

WARNING!!

SERVICE WARNING : DO NOT APPROACH THE
LASER EXIT WITH THE EYE TOO CLOSELY.
IN CASE IT IS NECESSARY TO CONFIRM LASER
BEAM EMISSION, BE SURE TO OBSERVE FROM
A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE
OPTICAL PICKUP BLOCK.

LASER W ARNING LABEL

The labels shown below are affixed.

1. Warning label

Laser Diode Properties

Material: GaAS/GaAlAs
Wavelength: 760-800nm
Laser output: max. 0.5mW*
Emission Duration: continuous
*This output is the value measured at a distance about 1.8mm
from the objective lens surface on the Optical Pickup Block.

DANGER:

INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCK FAILED OR DEFEATED. AVOID DIRECT
EXPOSURE TO BEAM.

2. Class 1 label

LUOKAN 1

CLASS 1 LASER
PRODUCT

Printed on rear panel

LASERLAITE
KLASS 1

LASER APPARAT

PRECAUTIONS

1. Ground for the work-desk.
Place a conductive sheet such as a sheet of copper
(with impedance lower than 10 Mohm) on the work­ desk and place the set on the conductive sheet so that
the chassis can be grounded.

2. Grounding for the test equipments and tools.
Test equipments and toolings should be grounded in
order that their ground level is the same the ground of
the power source.

CAUTION:

HAZARDOUS LASER AND ELECTROMAGNETIC
RADIATION WHEN OPEN AND INTERLOCK DEFEATED.

ATTENTION:

RAYONNEMENT LASER ET ELECTROMAGNETIQUE
DANGEREUX SI OUVERT AVEC L'ECLENCHEMENT
DE SECURITE ANNULE.

3. Grounding for the human body.
Be sure to put on a wrist-strap for grounding whose
other end is grounded.
Be particularly careful when the workers wear
synthetic fiber clothes, or air is dry.

4. Select a soldering iron that permits no leakage and
have the tip of the iron well-grounded.

5. Do not check the laser diode terminals with the
probe of a circuit tester or oscilloscope.

SERVICE PROCEDURE-2

1. Initialize the unit.

(1) Press and hold down the STOP [ ] button, then press the FF (fast forward) [ ] button. All segments light up.
(2) Press and hold down the STOP [ ] button, then press the PUSH TO ENTER (JOG) button.

FL display

0 0:00 NO DISC

(3) Press the POWER button to turn off the unit.
(4) Disconnect the AC power cord from a wall outlet.

2. Check the version of Main microprocessor (Q8005) and Servo microprocessor (Q1001).

(1) Connect the AC power cord into a wall outlet.
(2) Press the POWER button to turn on the unit.
(3) Change into the state of "NO DISC".
(4) Press and hold down the STOP [ ] button, then press the FF (fast forward) [ ] button twice.
The first press lights up all segments.
Main microprocessor version ---> Servo microprocessor version

FL display

MA 050830A SRV 5805A MODEL00 00

--->

--->

--->

--->

DX-7555

NO DISC

(5) Press the POWER button to turn off the unit.
(6) Disconnect the AC power cord from a wall outlet.

3. Setting position before shipment.

(1) POWER button : OFF
(2) PHONES LEVEL : MIN.

4. Take out the Disc.

If cannot take out the disc, please take out disc as follows.
(1) The lever in the direction of the arrow.
(2) The tray is slowly drawn out by the hand.

--- Bottom view ---

Lever

Front panel

DX-7555

EXPLODED VIEW

A901

A110

P901

A073

L001

T902

A002

x 10 pcs.

Refer to
"EXPLODED VIEWS
OF MECHANISM"

A072

x 3 pcs.

U04

E012

A141

U03

A136

x 2 pcs.

A060

x 2 pcs.

A109

A105

x 4 pcs.

A006

E011

A074

x 4 pcs.

A056

P1002

A004

A090

A141

U02

D

Z008

A090

A090

A103

x 4 pcs.

D

P1003

With MECHANISM

A028

A126

U08

A012

U05

A076

x 4 pcs.

A074

x 8 pcs.

A141

U10

A

B

A

B

A030

x 2 pcs.

E004

E006

C

A124

U07

A058

A014

x 4 pcs.

A016

x 4 pcs.

U09

U01

C

A012

x 10 pcs.

A088

x 2 pcs.

A070

x 2 pcs.

A060

x 2 pcs.

P7001

A090

A042

A024

x 4 pcs.

A012

x 2 pcs.

A026

x 3 pcs.

U06

A130

A128

A048

A012

x 5 pcs.

A010

A012

A036

A038

A012

x 6 pcs.

A044

A062

A012

x 6 pcs.

A052

A032

A068

A104

x 3 pcs.

A012

x 2 pcs.

A034

A102

A040

A100

A020

A108

A018

A090

A090

A012

x 3 pcs.

A066

DX-7555

EXPLODED VIEWS OF MECHANISM-1

CD LOADER MECHA. Z001 : MGD-34
Parts No. 24800055C

<Note>

CD MECHA. =
Loader mecha. : "MGD-34" + Drive unit : "KSM-213CLCM"

33

DX-7555

18

x 2

18

x 2

09

21

25

11

18

21

08

06

15

16

Z003

x 2

Z007

26

05

Z006

12

13

18

x 2

20

x 2

Z003

(Silver)

Z005

Z002

Drive unit : KSM-213CLCM

Refer to
"EXPLODED VIEWS OF MECHANISM-2"

30

18

17

23

32

24

Z004 x 2

19

03

28

07

10

19

(Gold)

22

04

03

02

Z006 x 2

14

31

x 2

20

Z006

Z003

Z005

01

(Silver)

EXPLODED VIEWS OF MECHANISM-2

CD DRIVE UNIT : KSM-213CLCM

DX-7555

54

61

53

58

55

OK

51

NG

52

56

PARTS LIST

REF. NO. PART NO. (SN) DESCRIPTION

51
52
53
54
55
56
57
58
61

X-2625-877-1
X2625-769-1
2626-908-01
24810023
7621-255-15
24840008
1639-678-12
1-564-722-11
8848-483-05

57

Motor chassis ass'y
Motor gear ass'y
Sled shaft
Gear (A) (S)
P2 x 3, Screw
Leaf switch
Motor PC board
Connector 6pin
KSS-213C, Pickup

Q'TY

1
1
1
1
2
1
1
1
1

SCHEMATIC DIAGRAMS-1

DX-7555

A

1

2

3

4

5

BCDEFGH

CDSCORI

VDD_CPU

VDD_CPU

CDSVSO

CDSVCK

CDSVRE

FLASHHS

FLASHCK
FLASHO

FLASHRST

FLASHI

VDSPD3.3V

CDDATA2

IREQ

C2PO

MNT2

MNT1

MNT0

FLASHVPI

VDD_CPU

CDOPENSW

CDCLOSESW

RFAC

VC

CDSVRST

ACK_1

CDFOK

CDSCORI

ACK1

CDRESET

CDXLAT1

CDCLOK2

CDCLOCK_1

CDDATA_1

CDDATA2

CDOPEN

CDCLOSE

CDCLOSESW

CDOPENSW

CDSENS_1

CDDATA_1

IREQ_1

CDSVRQ

CDSVCK

CDFOK_1

CDCLOSESW

CDOPENSW

CDCLOSE

CDOPEN

CDXLT_1

EXCLK

EXCLK

CDANAMUT

CDSVAK

CDSVRE

CDSVRST

VSW_CPU

SRDR
TFDR
TRDR
FFDR
FRDR

SSTOP

SP-

SP+

SL+
SL-

VDDM

CDFOK

LD

E

F

A

B

C

D

SSTOP

PD

+3.3V

LD-

LD+

AVD1_+3.3V

CDSENS

ACK

VC

ACK_1

VC

VDDPIC

VDDPIC

CDSVSI

CDXLAT_2

CDXLAT_1

SFDR

CDSVRST_1

CDSVSI

PDSENS

PDSENS

B
D

F

LD

PD

E
A
C

CDRESET

TFDR

TRDR

FRDR

FFDR

SL+

SL-

SP-

SP+

REQ

CDRESET

OP_+8V

OP_+8V

VDSPD3.3V

MECHA_+B

TR+

TR-

FO+

FO-

FLASH_VPI

GNDD

GNDD

GND_CPU

GND_CPU

GND_CPU

GNDD

LD_GND

GNDD

GNDM

GND_CPU

GND_CPU

GNDM

CDCLOCK_1

CDSVRE

CDSVSO

GND_D

DOUT_1

CDCLOK_2

CDDATA_2

TRACKING

LD

VR

FO-

E

D

A

B

C

F

2.5V

5V

VC

+5V

LD-G

PD

FOCUS

TR-

TR-

FO+

INSW

LD+
LD-

DGND

OUTSW

M

pick short terminal

SSTOP

3.3V

SL-

SL+

SP-

SP+

M

M

DIGITAL OUT

<UJJ> Only

0R3005 NC

C3014 104 NC

UJJ ELSE

U3002 NC

NCR3006 0

C2035 NM

R2046

15K

C2034

102

C2033

NM

C2005 104Z

TP2003

MIRR

TP2004

DFCT

TP2001

COUT

TP2005

LOCK

5

R1038 100

C1019

P2004

1

CPUGND

2

CDSVSO

3

CDSVSI

4

CDSVCK

5

RST

6

EV5V

7

Vpp/test

8

NC

P2001 Error_Rate

12345

6

C1016

R1017

1K

R1018

10K

R1020

C1014

C1013

R1008

10K

R1007

10K

1.5 to 1.6

TP2006

R2056

3.3K

R2051

10K

R2052

470K

C2046

332

R2060

15K

3.3

R2062

470K

C2061

101

R1067

1K

R1070

1K

R1064

1K

D1001

1SS355

R1049

390

TP1001 CDRW

R2048

0

R2049

0

R2050

0

R2044

15K

R2043

0

R2045

0

R2041

0

R2040

0

3.3

R2019

0

C3009

C3010

C3008

C3001

224

C3013

104

C3012

330/16

+

Q3001

74HCU04AF

7

GND

65432

114

VCC

131211109

8

Q1002

TC7WT241FU

1

G

2

A1

3

Y2

4

GND5A2

6

Y1

7

G

8

VCC

Q1003

TC7WT241FU

1

G

2

A1

3

Y2

4

GND5A2

6

Y1

7

G

8

VCC

Q1004

TC7WT241FU

1

G

2

A1

3

Y2

4

GND5A2

6

Y1

7

G

8

VCC

3
2
1

Q1005

TC7WZU04FU

567

8

VD

123

4

GND

Q2001

BD7931F

1

VCC

2

M+

3

M-

4

POWGND5PREGND

6

CONT

7

REV_IN

8

FWD_IN

Q2003

CXD3014R

31

MIRR

32

DFCT

33

FOK

34

DVSS4

35

DVDD5

36

DVSS5

37

LOCK

38

MDP

39

SSTP

40

IOVSS4

41

SFDR

42

SRDR

43

TFDR

44

TRDR

45

FFDR

46

FRDR

47

IOVDD1

48

AVD1

49

AVS1

50

E

51

F

52

TEI

53

TEO

54

FEI

55

FEO

56

VC

57

A

58

B

59

C

60

D

61

AVD262RFDCO63PDSENS64AC_SUM65EQ_IN66LD67PD68RFC69AVS270RFACO71RFACI72AVD373BIAS74ASYI75ASYO76VPCO77VCTL78AVS379CLTV80FILO81FILI82PCO83SRAMVSS184SRAMVDD1

85

6

7

XTACN

8

XRST

9

DVSS3

10

IREQ

11

CLOK

12

DATA2

13

XLAT2

14

REQ

15

ACK

16

XLAT

17

DVDD3

18

SRAMVSS3

19

SRAMVDD3

20

SENS

21

WFCK

22

XUGF

23

XPCK

24

GFS

25

C2PO

26

SCOR

27

DVDD4

28

COUT

29

SRAMVSS4

30

SRAMVDD4

L3001

BLM21B222SPT

L3002

BLM21B222SPT

T3001

NSRF-2046

U3001

TOTX141

1

GND

2

V

3

IN

P2002

for_Jitter_Measure

2
1

R2020

22K

C2014

472

C2004

104Z

R2007

5.6K

C2043

104Z

C2006

104

C1008

104Z

C2029

104Z

C2067

C3011

104

C1010

104Z

C1009

104Z

C2008

104Z

C2013

104

C2025

104Z

R2053

1K

C2058

104

C2052

100/16

+

C3006

223

C3003

223

C2032 681

C2002 104Z

C2003

470/16

+

C2063

100/16

+

C2037
100/16

+

R2047

0

C2036
100/16

+

C1011

100/16

+

C9001

C2050

100/16

C3007

330/16

+

C3002

22/50

+

R1004

NC

R1003

10K

R1002

10K

R1009

100

R1010

100

R1011

100

R1006

10K

R1005

10K

C1015

TP1002 CD2SPD

TP1003

CD4SPD

R1012

0

R1016

0

R1013

0

R1015

10K

R1037

0

R1033

0

R1032

0

R1029

0

R1027

0

R1025

0

R1021

R1026

0

R1028

0

R1024

0

R1022

0

R1023

R1030

10K

R1031

R1035

10K

R1034

10K

C1017

C1007

104Z

R1036

R1046

0

R1039

100

R1043

0

R1053

1K

R1055

1K

R1052

560

R1057

0

R1051

47

R1050

560

R1058

0

R1061

560

R1060

560

R1059

560

R1068

R1065

R1066

R1069

R1062

0

R1063

0

C1012

104Z

R1072

R2012

0

R2010

0

R2009

0

TP2002

WFCK

R2011

0

R2008

15K

R2005

R2018

0

R2016

0

R2027

0

R2030

0

R2023

0

R2025

0

R2034

0

R2032

0

R2022

R2039

0

R2055

100K

R2058

1M

R2054

4.7K

C2059

104Z

C2044

R2072

0

R3001

150

C3005

223

C3004

223

R3004

C3014

U3002

1

GND

2

V

3

IN

R3005

0

R3006

R1074

R1075

NC

P1004B

CN12

Val

1

2

3

4

5

6

7

8

9

10

11

12

R1019

10K

R1056

1k

R1047

0

R1001

NM

C1018

C2062

NC

R2065

R2057

0

R2061

0

R3003

100

P3001

COAXIAL

3

R1014

0

P1003

for_SL_SP_Motor

1

2

3

4

5

6

R2063

33

Q2006

2SA1162

R2037

10K

R2021

0

R3002

150

L3003

BLM21B222SPT

Q2002

BA5947FP

15

CH4OUTR16CH4OUTF17CH3OUTF18CH3OUTR19POWVCC20MUTE21GND30fin22CH3RIN23CH3FIN24CH4IN25CH4CAPA26OUTVREF27OPOUT28PREVCC

1

OPIN-

2

OPIN+

3

SW

4

CH1FIN

5

CH1RIN

6

CH2FIN

7

CH2RIN

29

fin

8

GND

9

VREFIN

10

POWVCC

11

CH2OUTR

12

CH2OUTF

13

CH1OUTR

14

CH1OUTF

P1005B

4
3
2
1

P9004

ACINLET

2 1

P1001

for_Loading_Motor

5
4
3
2
1

R1073

R1040

0

R1045

0

R10410R10420R1044

0

Q9001

78M05

3

O

2

G

1

I

C2030

1000/16

+

Q2007
UPC2906HF

3

O

2

G

1

I

P9011BP9011A

C2064+C2069

330/16

+

C2041

104K

C2040

103K

C2047

104K

C2045

104K

C2049

104K

C2053

474K

C2051

152K

P3002A

3
2
1

C2048

NC

D2001

L2005

2.2u

L2004

2.2u

L1001

2.2u

L2001

2.2u

Q1001

MPD78F4225GC

61

CDSVGPI

62

CDSCORI

63

CDSVRQ

64

CDIREQ

65

CDACK

66

NC

67

VSS0

68

VDD1

69

X2

70

X1

71

TEST/VPP

72

NC

73

GND

74

VDD0

75

AVDD

76

GPANI0

77

GPANI1

78

GPANI2

79

GPANI3

80

GPANI4

1

GPANI52GPANI63GPANI74AVSS5GPANO06GPANO17AVREF18CDDATA2I9CDDATA2O10CDCLOK211CDSENS12CDDATA13CDCLOK14CDSVAK15CDSVRE/FLASHHS

16

CDSVSI/FLASHI17CDSVSO/FLASHO

18

CDSVCK/FLASHCK

19

CDSVGPO20CDXLT

21

CDFOK

22

CDRESET

23

CDREQ

24

CDPOWER

25

CDLAT2

26

CDEMPHASIS

27

CDDACRST

28

CDDACCS

29

CDDACCLK

30

CDDACSO

31

CDDACMUT

32

CDANAMUT

33

VSS1

34

CDOPEN

35

CDCLOSE

36

CDOPENSW

37

CDCLOSESW

38

CD4SPD

39

CD2SPD

40

CDRW

41

NC42NC43NC44NC45NC46NC47NC48NC49NC50NC

51

VDDVOLTAGE

52

GPIO053GPIO154GPIO255GPIO356GPIO457GPIO558GPIO659GPIO7

60

CDSVRST

5

ATTENTION

VA

ET CALIBRATION COMME INDIQUE.

D'INCENDIE, REMPLACER UNIQUEMENT

PERMANENTE CONTRE LES RISQUES

AFIN D'ASSURER UNE PROTECTION

PAR UN FUSIBLE DE MEME TYPE

AGAINST FIRE HAZARD, REPLACE

VA

FOR CONTINUED PROTECTION

AND RATING INDICATED.

ONLY WITH FUSE OF SAME TYPE

CAUTION

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
ELECTROLYTIC CAPACITORS ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030 3pF 330 33pF 331 330pF 333 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.

NOTE

( )

6

6

6

2.5

5

5

6

U01 : MAIN CIRCUIT PC BOARD NAAR-8645

U02 : CONNECTOR
PC BOARD NAETC-8736

DX-7555

DACLRCK

DACDATA

DACBCK

VDDC1.8V/2.5V

VDSPD3.3V

DOUT

ACM_H

ACM_L

DIS_COM+5V

VDDC1.8V/2.5V

HP_-B

VDSPD3.3V

+B_R

+B

+B_L

D+3.3V

ACLOCKADJ

ACLOCKADJ

CDSVRQ

DAC_SDO

DAC_RST

CDSVRQ

EXCLK

SO_1

SI_1

CL_1

REQ_1

ACLOCKADJ_1

SYS_+5V

CDRESET

REQ

SYS_GND

CDSVRQ
CDSVAK
CDSVRST

BACK_UP_EV5V

K0_1

REMO_IN_1

INT_K0_1

test

CDSVRE

RST

RI_OUT

RST

RI

HP_MUTE

HP_OUTR

MUTE_-B

AMUTE

MUTE_R

HP_MUTE

EV_GND

EV+5V

BACK_UP_EV5V

STBY_LED

REMO_IN_1

P-SUPPLY

MUTE_L

DIS_COM+5V

FL_AC_L

FL_AC_H

FL_AC_H

FL_AC_L

DIS_COM+5V

VCONT_MPU

VD+3.3V

DSP_+8VVSW8V

XTAI

-B_R

test

REQ_1

SO_1

SI_1

CL_1

OP_+8V

K0_1

BACK_UP_EV5V

P-ON

EV

EV_GND

SUB_RST

SUB_CL

SUB_SI

SUB_SO

EV_GND

SUB_REQ

REMO_IN

LED

K0

INT_K0

-VDISP

-VDISP_GND
FLAC1
FLAC2

-B

-Vdisp_C

STBY_LED

DAC_LAC

DAC_CLK

CDSVCK

CDSVSI

CDSVSO

AC_-VDISP

AC_-VDISP

CLK2V

DAC_SCLK

DIS_COM+5V

EV+5V

CLK3.3V

MUTE_+B

OP_+8V

OP_+8V

OP_+8V_1

MUTE_+B_1

MUTE_+B

A+5V

MECHA_+B

SUBRST_1

SUBRST_1

GNDD

GND_CPU

DSP_GND

DIS_GND

GNDD

MUTEGND

MUTEGND

SUB_GND

-VDISP_GND_1

DIS_GND

GNDD

GNDD

GNDM

DGND

DSP_GND

DIS_GND

GND

GND

P_GND

EV_GND_1

EV_GND_1

GNDM

DIS_GND

-VDISP_GND_1

MUTE_GND

APGND

DGND

APGND

MUTE_GND_1

-VDISP_GND_1

GNDM

INT_K0_1

MUTE_GND_2

MUTE_GND_2

MUTE_GND_3

+5V

P-ON

K0_1

DAC_LAC

DAC_RST

DAC_SDO

DAC_CLK

RI_IN

P-OFF_1

P-OFF

P-OFF

-B_HP

+B_HP

AOUTL

AOUTR

HP_+B

A_GND

HP_OUTL

HP_-B

P_GND

JL0002

JL0001

JL0004

JL0003

SERVO_+5V

Back up circuit

RI

no saving mode

CXD3014ARCXD3014R
R8057
R8060

0 ohm

0 ohm

NC

NC

R2036

0

C2011

104Z

C2016

104Z

R2014

22

R2015

22

C2028

104Z

R2028

10K

R2026

0

P7002

1
2
3
4
5
6
7
8

C9021

470/16

+

C4011

332

C8009

104Z

R8047

100

1K

1K

1K

C8008

104Z

C9025

104J

5

R4066

560K

P001B

12345

6

Q8003

RN1407

Q8004

S-80145CLMC

3

NC

2

VSS

1

DS5VCC

4

OUT

Q8002

BR93L56F-WE2

5

DI

6

DO

7

GND

8

NC1NC

2

Vcc

3

CS

4

SK

PCO83SRAMVSS184SRAMVDD185SRAMSTB86DVDD187DVSS188TEST189DATA90CLOK2

91

VSS2

92

VDD2

93

TEST2

94

TEST3

95

TEST4

96

TEST5

97

TEST6

98

DVSS2

99

DVDD2

100

IOVDD2

101

DOUT

102

TEST

103

TEST

104

IOVSS2

105

PLLAVD

106

PLLAVS

107

XVSS

108

XTAO

109

XTAI

110

XVDD

111

AVD4

112

AOUT1

113

VREFL

114

AVS4

115

AVSS

116

VREFR

117

AOUT2

118

AVD5

119

IOVDD3

120

IOVSS3

1

LRCK

2

LRCKI3PCMD

4

PCMDI

5

BCK

6

BCKI

7

XTACN

8

XRST

DVSS3

Q4005

NE5532AP

6

5

7

Q4002

NE5532AP

3

2

1

P2005

8

NC

7

Vpp/test

6

EV5V

5

RST

4

CDSVCK

3

CDSVSI

2

CDSVSO

1

CPUGND

Q7003

2SD1644

Q7002

2SD1644

Q9005

UPC29M33HF

2

G

1

I

3

O

Q2005

MPD120N25T1B

1

O3I

2

G

D9005

RL1N4003

D9006

RL1N4003

D9004

RL1N4003

C8002

2.2/50

+

D8002

D9001

UDZS4.7B

D8008

D8003

UDZS5.6B

Q8001

RN2403

D8001

D7001

RL1N4003

C7002

104J

R8011

470

L8001

BLM21B222SPT

P3101

RI_JACK

3
2
1

4

P9033 From_S_PT

1
2
3
4
5

P9001

For_M_PT

1
2
3
4
5
6
7

P703

For_Freq_Measure

2

1

C8011

0.1F

+

D8007

D8006

C2007

104Z

C9007

C9009

C2054

C4027

104J

C4025

104J

C4026

104J

Q4008
2SD655

Q4006

2SD655

Q4009

2SD655

Q4007

2SD655

3 2

C8013

104Z

C8003

104

C9016

C9004

C9022

104Z

1K

C8012

104Z

C2001

473

C8004

473

C8005

473

C9011

474

C9010

474

C8014

33P

C8016

33P

C8015
33P

C8019

33P

C8018

33P

C8022

33P

C9014

22000/50

+

C4006

102

Q4003

NE5532AP

6

5

7

C4009

102

C4028

102

C4008

102

C4029

102

C4019

182

C4010

332

C2039

100/16

+

C2038

104Z

+

C2050

100/16

+

C9018

1000/16

+

C9003

330/16

+

C9017

330/16

+

C9020

470/16

+

C7001

470/16

+

C8010

2.2/50

+

C8024

2.2/50

+

C2010
22/50

+

C2015
22/50

+

C2012

47/50

+

C2017

47/50

+

R1048

560

R1054

1K

R1071

0

R2006

47K

R2001

560

R2005

R2002

1K

R2013

22

R2035

R2031

0

4.7K

R2066

0

R20670R20680R2069

0

R4002

R4006

1.2K

R4004

1.2K

R4001

R4003

1.2K

R4005

1.2K

R4007

R4008

R4010

2.4K

R4012

2.4K

R4011

2.4K

R4009

2.4K

R4013

10K

R4015
10K

R4014

10K

R4016

10K

C4017

C4016

R4020

22(1/2W)

R4017

22(1/2W)

R4018

22(1/2W)

Q4003

NE5532AP

2

3

4

1

8

R4021

1.5K

R4023

22K

Q4002

NE5532AP

5

6

8

7

4

R4022

1.5K

R4024

22K

R4025

22K

R4026

22K

R4028

22K

R4027

22K

R4029

22K

R4031

1.5K

R4030

22K

R4032

1.5K

Q4004

NE5532AP

5

6

8

7

4

R4034

1.5K

R4035

R4037

R4039

4.7K

R4041

R4043

470K

R4044

470K

R4045

10K

R4046

10K

R4047

220

R4051

220

R4052

220

R4048

220

R4050

10K

R4049

10K

R4055

560K

R4056

560K

R4054

220K

R4053

220K

R4057

0

R4065

0

R4058

0

R4067

220K

R4068

0

R7011

10k

R7010

10k

R8005

0

R80060R8007

0

R8002

100

R8010

10K

R8004

220K

R8024

0

R8025

0

R8053

10K

R8052

10K

R8015

0

R8014

0

C8023

33P

R8017

0

R8012

10K

R8028

560

R8029

560

R8030

560

R8027

560

R8032

1K

R8031

1K

R8034

1K

R8036

10K

R8049

R8048

10K

R8046

1K

R8059

47K

R8057

R8050

1K

R8055

R8056

0

R8058

R8054

10K

R8061

R8060

R9008

0

R9006

33(1W)

R9001

22(1/2W)

R9003

22(1/2W)

C9013

22000/50

+

R9018

0

C4012

470/16

+

C4013

470/16

+

C4015

470/16

+

Q4001

WM8740

1

LRCIN2DIN3BCKIN4MODE8X5SCLK6DIFFHW7DGND8DVDD9AVDDR10AGNDR11VMIDR12VOUTRP13VOUTRN14AGND

15

AVDD

16

VOUTLN

17

VOUTLP

18

VMIDL

19

AGNDL

20

AVDDL

21

ZERO

22

RSTB

23

CSBIWO

24

MODE

25

MUTEB

26

MD/DM027MC/DM1

28

ML/I2S

Q8006

NE5532AP

7

6

5

Q9006A

78M56

3

O

2

G

1

I

R8008

100

D8004

R8020

0

R8062

10K

R8013

0

C4005

47/50

+

C4023

100/50

+

C4030

334

R8051

100

Q4013

2SA1162-Y

Q4011

2SA1162-Y

Q4010

2SA1162-Y

C4024

104J

C4022

100/50

+

C4018

182

R8001

47K

C2022

223

R2074

0

C2024

104Z

R1056

1k

R8003

220

C8020

33P

C8021

33P

R4038

R4040

4.7K

C4014

470/16

+

R4019

22(1/2W)

C8006

104Z

C8001

104Z

R2059

0

R2042

22

Q4005

NE5532AP

2
3

4

1

8

R4033

1.5K

C4007

102

C8017

103

R7005

100

R7002

100

R7003

100

R7004

100

R7001

100

R7009

100

R7006

100

R2075

150

D9003

RL1N4003

C9023

470/16

+

R9010

10K

R9020

10K

R9023

1K(1W)

R9021

10K

R9017

10K

R9024

NC

Q8006

NE5532AP

814

3

2

R8026

100

R8065

NC

Q9006B

S-812C56AUA-C3E-T2

3

O

1

G

2

I

D8005

D9002

D5SBA20

134

2

D9007

RL1N4003

D9009

R9007

1k

Q9003
78M05

3

O

2

G

1

I

P7001

20
19
18
17

16

15
14
13

12

11
10

9
8
7
6
5
4
3
2
1

P3002B

1
2
3

R2063

33

R2064

33

Q2006

2SA1162

C2065

104

C2066

100/16

+

R8021

0

C4003

47/50

+

C4031

100/50

+

Q9004
78M08

3

O

2

G

1

I

R8009

0

R8064

0

C2055

22/6.3

+

C8007

104Z

C4004

470/16

+

C2068

223

X8001

12.5MHz

C4032

474

J1501

R4036

J1502

J1503

Q4004

NE5532AP

3

2

1

R4042

C4020

100/50

+

C4021

100/50

+

J1504

R9022

0.22(1W)

R9009

0

J1505

D7002

RL1N4003

J1507

J1506

C7003

330/16

+

C9024

2200/25

+

C4002

474

R8019

0

R8018

0

R7008

0

R7007

0

R8023

0

R8022

0

J1508

C7004

330/16

+

Q9002

UPC29M33HF

3

O

2

G

1

I

Q7001

78M05

1

I3O

2

G

P4001

PINJACK

Val

4

2

1

3

7

5

6

C9019

Q8005

61

EXILIN

62

POFF

63

SYSIN

64

CDSVRE

65

INTK0

66

EXIRIN

67

VSS0

68

VDD1

69

X2

70

X1

71

TEST/VPP

72

NC

73

GND

74

VDD0

75

AVDD

76

MODEL

77

GPANI1

78

K0

79

GPANI3

80

GPANI4

1

GPANI52MODEL13GPANI74AVSS5ACLKADJ6NC7AVREF18GPANI9NC10GPANI11CDSVSO12CDSVSI13CDSVCK14EXCLK15SUBRST16SUBSO17SUBSI18SUBCL19SUBREQ20NC

21

CDSVRST

22

CDSVAK

23

CDSVRQ

24

NC

25

NC

26

NC

27

CDIC_SEL

28

NC

29

NC

30

NC

31

NC

32

NC

33

VSS1

34

STBYLED

35

NC

36

DACRST

37

NC

38

DACLAC

39

DACSDO

40

DACCLK

41

NC42NC43NC44NC45NC46NC47NC48NC

49

SYSOUT

50

EEPROMCS

51

EEEPROMCLK

52

EEPROMDI

53

EEPROMDO

54

ACLKSTP155ACLKSTP2

56

ACLKSTP3

57

ACLKSTP4

58

ACLKSTP5

59

P-ON

60

RST

Q8005

MPD78F4225GC

61

EXILIN

62

POFF

63

SYSIN

64

CDSVRE

65

INTK0

66

EXIRIN

67

VSS0

68

VDD1

69

X2

70

X1

71

TEST/VPP

72

NC

73

GND

74

VDD0

75

AVDD

76

MODEL

77

GPANI1

78

K0

79

GPANI3

80

GPANI4

1

GPANI52MODEL13GPANI74AVSS5ACLKADJ6NC7AVREF18GPANI9NC10GPANI11CDSVSO12CDSVSI13CDSVCK14EXCLK15SUBRST16SUBSO17SUBSI18SUBCL19SUBREQ20NC

21

CDSVRST

22

CDSVAK

23

CDSVRQ

24

NC

25

NC

26

NC

27

CDIC_SEL

28

NC

29

NC

30

NC

31

NC

32

NC

33

VSS1

34

STBYLED

35

NC

36

DACRST

37

NC

38

DACLAC

39

DACSDO

40

DACCLK

41

NC42NC43NC44NC45NC46NC47NC48NC

49

SYSOUT

50

EEPROMCS

51

EEEPROMCLK

52

EEPROMDI

53

EEPROMDO

54

ACLKSTP155ACLKSTP2

56

ACLKSTP3

57

ACLKSTP4

58

ACLKSTP5

59

P-ON

60

RST

R8016

2.7K

R8066

10K

2.2u

L2003

2.2u

L2002

2.2u

D9008

RL1N4003

Q4012B

NE5532AP

5

6

7

4

R4059

10K

R4063

10K

R4064

10K

R4060

10K

R4062

10K

R4061

10K

Q4012A

NE5532AP

2

3

8

1

2.5

3.3

3.3

2.5

3.3

3.3

8

-13

-5

4.7

8.0

5.0

3.3

SCHEMATIC DIAGRAMS-2

DX-7555

A

1

2

3

4

5

BCDEFGH

P901

AS-CEE

S8004

4

3

2

1

T.F.

T902

NPT1451A

10

11
12

13
14

15
16

8

9

R9103

2.2(1W)

R9102

1.0(1W)

R9101

1.0(1W)

JL9001

P7002

Q81016-BT-289GK

F11 1

F12 2

F21 45

F22 44

G1 41

G10 32

G11 31

G12 30

G13 29

G2 40

G3 39

G4 38

G5 37

G6 36

G7 35

G8 34

G9 33

P1 19

P10 10

P11 9

P12 8

P13 7

P14 6

P15 5

P2 18

P3 17

P4 16

P5 15

P6 14

P7 13

P8 12

P9

11

S9001

Q9002

NC

OUT

VDD

VSS

VSS2

JL9033

RL9001

R9202

0.47

R9203

0.47

L9001

NCH3564

1

23

4

T9001

NPT-1519GQ

1

4

5

6

8

9

P9013A

P9013C

P9003B

P9004C

P9022

P9011

P9013

C9114

104

C9113

104

C9111

474

C9110

104

C9106

104

C9108

474

C9104

224

D9106

RL1N4003

D9108

RL1N4003

D9105

D9104

D9103

D9102

RL1N4003

D9101

D9107

UDZS5.1B

D8502

UDZS5.6B

C9112

2.2/50

C9109

6800/16

C9105
47/50

C8504

C9107

472

C9103

472M

C9102

472M

C9101

472M

C9115

472M

C8503

273

Q9001

DTC123JS

R4102

22

R4101

22

R9206

18K

R9204

8.2K

R9205

27K

R9201

10

R8504

470

R8801

2.7K

R8800

2.7K

R8802

4.7K

R8803

4.7K

R8903

0

R8902

0

R8600

R8508

100K

R8503

470

R8201

390

R8101

390

R8102

470

47K

R8601

0

R8707

R8606

47

R8605

R8603

47

R8604

47

R8602

47

S8202

S8201 S8102

S8103

S8101

Q8601

-VDISP60
10G

11G

12G

13G

14G

1G

2G3G4G5G6G7G8G

9G

AVDD 24

AVSS18

DIGI_OFF_LED 28

DSC_IND_LED1

29

DSC_IND_LED2

30

DSC_IND_LED3

31

FIP13

FL_HSW 26

IC 5

INTP_015

I_P2212

I_P2311

K0 22

K1

21

K220

K319

P1

P1053

P1152

P1251

P1350

P1449

P15

48

P16

47

P17

46

P18

45

P1944

P2

P2043

P21

42

P22

41

P23

40

P2439P2538P2637P2736P2835P29 34

P3

P30

33

P31

32

P36

P4

7170696867

807978777675747372

66

6463626561

P558

P657

P756

P855

P954

SO_313

SUBCL 7

SUBREEST 6

SUBREQ10

SUBSI 8

SUBSO 9

TI17

TRAYBRIGHT16

TRAYLED2 27

TRAYLED_114

VDD1 1

VDD_0 25

VDD_259

VSS0 23

VSS1 2

X1 3

X2

4

FL_ON/OFF

JOG_B

JOG_A

KEY_0

KEY_1

KEY_2

P15

P14

P13

P12

P11

P10

P9

P15 SW-VP

P8 P14 LED_8

P7 P13 DSC_IND_LED3 SUBREQ SUBREQ

P6 P12 SUBREQ SUBSO SUBSO

P5 P11 SUBSO SUBSI SUBSI

P4 P10 SUBSI SUBCL SUBCL

P3 P9 SUBCL

P2 P8 SUBRSTIN SUBRSTIN SUBRSTIN

P1 P7

P6

P5 +B[SUB]

13G

12G

11G

10G

9G

8G

7G

6G

5G

4G

3G

2G

1G

F1_OUT F1_OUT

F2 F2

GND[SUB]

HP-B HP+BOUT

HP+B

HP-BOUT

HP-MUTE

HP-MUTEGND

P_ON

HP-R

SUB_GND HP-GND

HP-L

P_OFF

AS-JA

AS-UC-2

AS-CCC

NAETC-8653

NAPS-8648

NAPS-8646

NAPS-8647

NADIS-8650

PAUSE

STOP

FR

DISP

FF

J9103(R9104)

2.2(1/2W)

<MDC ONLY>

U06 : DISPLAY CIRCUIT PC BOARD NADIS-8650

U04 : POWER TRANSFORMER PC BOARD
NAPS-8647

U03 : POWER SUPPLY CIRCUIT PC BOARD
NAPS-8646

U09 : HEADPHONE AMP. PC BOARD
NAETC-8653

U05 : POWER SWITCH PC BOARD
NAPS-8648