DOWNLOAD Sony CMT-NE3 (serv.man2) Service Manual ↓ Size: 3.07 MB | Pages: 53 in PDF or view online for FREE

29

1

LEVEL SHIFT

MUTING

D

15

16

+

–

+

–

D

D

17

18

D

19

20

VREF

21

22

23

24

25

26

27

28

PREVCC

OPOUT

OUTVREF

CH4CAPA

CH4IN

CH3FIN

CH3RIN

GND

MUTE

POWVCC

CH3OUTF

CH3OUTR

CH4OUTF

CH4OUTR

OPIN

–

2

OPIN+

INTERFACE

14

13

D

12

11

D

10

9

8

7

6

CH2FIN

CH2RIN

GND

5

4

CH1FIN

CH1RIN

VREFIN

POWVCC

CH2OUTR

CH2OUTF

CH1OUTR

CH1OUTF

INTERFACE

D

D

3

SW

INTERFACE

28

REC1O

27

REC1N

26

REC2N

25

REC2O

24

INC2

23

INC1

22

INB2

21

INB1

20

INA2

19

INA1

18

OUT1

17

BAS1

16

OUT2

15

BAS2

BASS

BASS

13

CONT

14

VEE

12

VDD

11

TRE2

10

TRE1

TREBLE

TREBLE

7

VOLIN1

8

VOLIN2

9

GND

VOLUME

VOLUME

6

PB1O

LOGIC

CONTROL

5

PB2O

4

PB2N

1

PB1N

2

PB1P

3

PB2P

30

•

Pin No.

Pin Name

I/O

Description

1

PWR ON

O

Power relay drive signal output terminal     “H”:  on

2

CD ON

O

Power on/off control signal output for the CD mechanism section 

3

CD XTXCN

O

Oscillation circuit control signal output to the CD DSP
“H”: auto oscillation, “L”: oscillation off

4

CD OPEN

I

CD lid open/close detection switch input terminal

5

CD XRST

O

Reset signal output to the CD DSP

6

CD DATA

O

Serial data output to the CD DSP

7

CD SENS

I

Internal status (SENSE) signal input from the CD DSP

8

CD CLK

O

Serial data transfer clock signal output to the CD DSP

9

CD XLT

O

Serial data latch pulse output to the CD DSP

10

NC

—

Not used

11

RESET

I

Reset signal input from the reset switch    “L”: reset For several hundreds msec. after the power 
supply rises, “L” is input, then it changes to “H”

12

XT1

I

Sub system clock input terminal (32.768 kHz)

13

XT2

O

Sub system clock output terminal (32.768 kHz)

14

VSS1

—

Ground terminal

15

CF1

I

Main system clock input terminal (10 MHz)

16

CF2

O

Main system clock output terminal (10 MHz)

17

VDD1

—

Power supply terminal (+3.2V)

18

I POWER 

MONITOR

I

Power monitor input terminal

19, 20

NC

—

Not used

21

AREA

I

Model destination setting terminal 

22

VOL ENCODER

I

Dial pulse input of the rotary encoder (for VOLUME control)

23

I POWER DOWN

I

Power down detection signal input terminal    “L”: power down, normally : “H”

24

TA-SW

I

Cassette in/out detect switch signal input from the tape mechanism deck    “L”: cassette in

25, 26

KEY1, KEY0

I

Front panel key input terminal (A/D input)

27

CD SCOR

I

Subcode sync (S0+S1) detection signal input from the CD DSP

28

F DATA

O

Serial data output to the electrical volume

29

RMC

I

Remote control signal input from the remote control receiver 

30

TU DI

I

Serial data input from the FM/AM tuner unit

31

NC

—

Not used

32

TU DO

O

Serial data output to the FM/AM tuner unit

33

TU MUTE

O

Tuner muting on/off control signal output to the FM/AM tuner unit

34

TU CLK

O

serial data transfer clock signal output to the FM/AM tuner unit

35

TU CE

O

Chip enable signal output to the FM/AM tuner unit

36

TU TUNED

I

Tuning detection signal input from the FM/AM tuner unit

37

TU STEREO

I

FM stereo detection signal input from the FM/AM tuner unit

38

NC

—

Not used

39

ST/BY

O

LED drive signal output terminal

40

MD LED

O

LED drive signal output terminal

31

Pin No.

Pin Name

I/O

Description

41

TA LED

O

LED drive signal output terminal

42

TU LED

O

LED drive signal output terminal

43

CD LED

O

LED drive signal output terminal

44

NC

—

Not used

45 to 53 SEG33 to SEG25

O

Segment drive signal output to the fluorescent indicator tube

54

VDD2

—

Power supply terminal (+3.1V)

55

VSS2

—

Ground terminal

56 to 79

SEG24 to SEG1

O

Segment drive signal output to the fluorescent indicator tube

80

BIAS3

I

Power supply output for the liquid crystal display bias

81

LCD BIAS2

I

Power supply output for the liquid crystal display bias

82

LCD BIAS1

I

Power supply output for the liquid crystal display bias

83 to 86

LCD COM0 to

LCD COM3

O

Common drive signal output to the liquid crystal display (D621)

87, 88

NC

—

Not used

89

VSS3

—

Ground terminal

90

VDD3

—

Power supply terminal (+3.1V)

91

TA PLAY SW

I

PLAY switch signal input from the tape mechanism deck

92

TA END SW

I

END switch signal input from the tape mechanism deck

93

TA MOTOR

O

Capstan/reel motor on/off control signal output terminal    “H”: motor on

94

TA REC/PLAY

O

Recording/playback selection signal output terminal    “H”: playback mode, “L”: recording mode

95

TA BIAS

O

Recording bias on/off selection signal output terminal “H”: bias on, “L”: bias off

96

TA SOL

O

Trigger plunger on/off control signal output terminal    “H”: plunger on

97

BACK LIGHT ON

O

LED drive signal output terminal for the LCD back light

98

AMP STBY

O

Standby control signal output to the power amplifier

99

AMP MUTE

O

Tuner muting on/off control signal output to the power amplifier

100

AU MUTE

O

Line muting on/off control signal output terminal    Not used

•   ítens marcados “*” não, são estocados visto 

raramente são solicitados para serviço de rotina. 
Algum atraso deverá ser previsto quando 
solicitar esses ítens.

• As peças mecânicas sem número de referência

na  visão explodida não são fornecidas.

• Acessórios são dados no final da lista de peças

elétricas.

NOTE:

• -XX e -X significam peças selecionadas, portanto

podem ter alguma diferença da original.

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

1 A-1055-614-A PLACA POWER MONTADA
2             A-4750-277-A PLACA AMP MONTADA
3 Y-828-436-5A PLACA PRINCIPAL MONTADA
4              3-703-244-21 PRENSA CABO

5              1-757-813-24 

CABO DE FORÇA

9              3-701-748-00 PRESILHA

10             1-500-386-11 FILTRO, DE FERRITE 

T902             1-443-339-11   

TRANSFORMADOR DE FORÇA

0

#1             7-685-647-79 PARAFUSO +BVTP 3X10 TYPE2 N-S
#8             7-685-646-79 PARAFUSO +BVTP 3X8 TYPE2 N-S
#5             7-685-661-14   PARAFUSO  BVTP 4X12 TYPE 2  N-S

12

13

13

T902

not supplied

não é fornecida

11

painel frontal montado-1

#1

#1

#8

#8

#8

#8

#8

#1

#1

#5

#1

#1

#1

#8

#1

#1

#1

Os componentes identificados pela marca

0 ou linha pontilhada com marca 0 
são críticos para a segurança.
Substitua somente pela peça
de número especificado.

11              4-253-219-11    VISOR DO CD

12              4-253-220-31    GABINETE INFERIOR

6              1-693-631-21    SINTONIZADOR (FM/AM)

7              4-246-784-01    

PÉ DE BORRACHA

8              4-253-221-21   GABINETE, TRASEIRO

13              1-861-729-11    PLACA REG 

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