Sony CFD-V37 Manuale utente

CFD-V37

E Model

SERVICE MANUAL

CD RADIO CASSETTE-CORDER

MICROFILM

— Continued on next page —

SPECIFICATIONS

Optical Pick-up Type KSM-213CDM

Tape Transport Mechanism Type MF-V10-117

Model Name Using

Similar Mechanism CD Section

Tape Section CFD-V34

CD player section

System Compact disc digital audio system

Laser diode properties Material: GaAlAs

Wavelength:780 nm

Emission duration : Continuous

Laser output : Less than 44.6 µW

(This output is the value measured at a distance

of about 200 mm from the objective lens surface

on the optical pick-up block with 7 mm

aperture.)

Spindle speed 200 r/min (rpm) to 500 r/min (rpm) (CLV)

Number of channels 2

Frequency response 20 – 20,000 Hz + 1/-2 dB

Wow and flutter Below measurable limit

Radio section

Frequency range FM : 87.6 – 107 MHz(E4,EA)

87.6 – 108 MHz(E92)

AM : 530 – 1,605 MHz(E4,EA)

530 – 1,710 MHz(E92)

IF FM : 10.7MHz

AM : 455kHz

Aerials FM : Telescopic aerial

AM : Built-in ferrite bar aerial

Cassette-corder section

Recording system 4 -track 2 channel stereo

Fast winding time Approx. 120 s (sec.) with Sony cassette

C-60

Frequency response TYPE1 (normal) : 70 – 10,000 Hz

General

Speakers Full range : 10 cm dia., 3.2 Ω, cone type

(2)

Outputs Headphones jack (stereo minijack)

For 16 – 64 Ωimpedance headphones

Power output 2.5 W + 2.5 W (at 3.2 Ω, 10 % harmonic

distortion)

Power requirements For CD radio cassette-corder :

110 – 120 V, 220 – 240 VAC

Selectable, 50/60 Hz(E4,EA)

120V 60 Hz(E92)

9V DC, 6 size D (R 20) batteries

For memory controller :

3V DC, 2 size AA (R 6) batteries

Ver 1.0 1999 . 04

CFD-V37

5-5. SCHEMATIC DIAGRAM — TUNER/SYSTEM SECTION —

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ωand 1/4W or less unless otherwise

specified.

•C: panel designation.

•U: B+ Line.

• Power voltage is dc 9 V and fed with regulated dc power

supply from battery terminal.

• Voltages and waveforms are dc with respect to ground un-

der no-signal (detuned) conditions.

no mark : CD PLAY

( ) : FM

[]:AM

• Voltages are taken with a VOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal production

tolerances.

• Waveforms are taken with a oscilloscope.

• Signal path.

F: FM

f: AM

• Abbreviation

E4 : 220V – 240V AC area

EA : Saudi Arabia

E92 : 120V AV area

•Waveform

IC501 #¡

IC501 &¢

4.0Vp-p

4.5Vp-p

4.0MHz

500kHz

1.0V/div

0.1µsec/div

1.0V/div

1.0µsec/div

E92 MODEL

L2, CT1(2/4)

L1,CT1(1/4) FM FREQUENCY

COVERAGE

L4,CT1(4/4)

E4,EA MODEL:4.7p

E92 MODEL:3.3K

FM FREQUENCY

COVERAGE

27p

FM TRACKING

220

C1 47p

E92 MODEL

E4,EA MODEL

E92 MODEL

470

L3,CT1(3/4)

AM TRACKING

Mark:

Ref.No. E4 MODEL E92 MODEL EA MODEL

C18,19

5.6p 5.6p 6.8p

3.3p 1.5p 3.3p

0.01 0.015 0.01

330 470 330

SWITCH

— 23 — — 24 — — 25 — — 26 —

• Refer to page 34 for IC Block Diagrams.

CFD-V37

5-6. SCHEMATIC DIAGRAM — POWER SECTION —

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ωand 1/4W or less unless otherwise

specified.

•U: B+ Line.

• Power voltage is dc 9 V and fed with regulated dc power

supply from battery terminal.

• Voltages and waveforms are dc with respect to ground un-

der no-signal (detuned) conditions.

no mark : CD PLAY

( ) : TAPE PLAY

[ ] : TAPE REC

• Voltages are taken with aVOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal production

tolerances.

• Waveforms are taken with a oscilloscope.

• Signal path.

F: FM

E: PB

a: REC

J: CD

•Waveform

T301 REC

40Vp-p

52.75kHz

10V/div

10µsec/div

Note: The components identified by mark !or dotted line

with mark !are critical for safety.

Replace only with part number specified.

32 23

E4,EA MODEL E4,EA MODEL

E4,EA MODEL

E92 MODEL

E92 MODEL F902

2.5A:E4,EA MODEL

3.15A:E92 MODEL

250V

POWER TRANSFORMER

— 27 — — 28 — — 29 — — 30 —

CFD-V37

5-7. SCHEMATIC DIAGRAM — CD SECTION — 5-8. IC BLOCK DIAGRAMS

–

12 3 45 6 7 8 9 10

131211

27282930313233343536373839

–

––

–

+–

–

Charge

FEO

FEI

FDFCT

FGD

FLB

FE_O

FE_M

SRCH

TGU

TG2

FSET

TA_M

TA_O

SL_P

SL_M

SL_O

ISET

VCC

LOCK

CLK

XLT

DATA

XRST

C. OUT

SENS1

SENS2

FOK

CC2

CC1

RF_I

RF_O

RF_M

RFTC

PD1

PD2

FE_BIAS

VEE

TEO

LPFI

TEI

ATSC

TZC

FZC

TM2

VEEVEE

TM3 TM5

TM4 TM6

VCC VCC

TM7

ISET

TTL

↓

IIL

↓

TTL

IIL

↓

TTL

IIL DATA REGISTER

INPUT SHIFT REGISTER

ADDRESS DECODER

SENS SELECTOR

OUTPUT DECODER

DFCTO IFB1-6

BAL1-4

TOG1-4

FS1-4 TG1-2 TM1-7 PS1-4

FOH

FOL

TGH

TGL

BALH

BALL

ATSC

TZC

FZC

FSET

TG2

VEE

VCC

FS1

FS2

FOCUS

PHASE COMPENSATION

DFCT

FS4

TRACKING

PHASE COMPENSATION

TG1

TM1

DFCT

FZC COMP.

VEE

VCC

TDFCT

TZC COMP.

ATSC

WINDOW

COMP.

E-F BALANCE

WINDOW COMP.

TRK. GAIN

WINDOW COMP.

FO. BIAS

WINDOW

COMP.

VEE

TGFL

TOG1

TOG2

TOG3

TOG4

BAL1

BAL2

BAL3

BAL4

IFB1

IFB2

IFB3

IFB4

IFB5

IFB6

FE AMP

VEE

E IV AMP

F IV AMP

VCC

APC

VCC

VEE

LASER POWER CONTROL

VEE

PD1 IV

AMP

PD2 IV

AMP

RF SUMMING

AMP

VCC

VEE

LEVEL S VEE

MIRR

VCC

DFCT

FOK

VCC

LDON

LPCL

LPC

TGFL

MIRR

DFCT1

CC1

30 29

4 5 6 7 8 9 10 11 12 13 14 15321

28 27 26 25 24 23 22 21 20 19 18 17 16

REG

FM FRONT-END

AM FRONT-END

VCO MPX REG.

1/2

COUNTER

1/2

COUNTER

PD1

PD2

MUTING

DECODER AMP

MONO/ST

SELECT

RIPPLE

FILTER

AUTOBLEND

BAND PASS

MUTE

TUNING

INDICATOR

FM IF/

DISCRI

IF/DET

GND

PLL LPF2

MPX REG

VCO

DISCRI

MUTE

AM OSC

AFC

FM OSC

REG

FM RF

AM RF IN

FM RF IN

BAND SELECT

AM IF IN

FM IF IN

TUNE IND

GND

VCC

L CH OUT

R CH OUT

ST IND/

VCO CHECK

PILOT DET LPF2

PLL LPF1

AGC AFC2

AGC AFC1

RIPPLE

FILTER

FM GND

FM/AM

FE OUT

IC1 CXA12138S

IC701 CXA1992BR

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ωand 1/4W or less unless otherwise

specified.

•U: B+ Line.

• Power voltage is dc 9 V and fed with regulated dc power

supply from battery terminal.

• Voltages and waveforms are dc with respect to ground un-

der no-signal (detuned) conditions.

no mark : CD PLAY

• Voltages are taken with a VOM (Input impedance 10 MΩ).

Voltage variations may be noted due to normal production

tolerances.

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

J: CD

•Waveform

IC703 &¡

IC703 #∞

3.5Vp-p

1.2 ±0.2Vp-p

16.9344MHz

1.0V/div

50nsec/div

0.2V/div

0.5µsec/div

Note: The components identified by mark !or dotted line

with mark !are critical for safety.

Replace only with part number specified.

28 24

— 31 — — 32 — — 33 — — 34 —

• Refer to page 34 for IC Block Diagrams.

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