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Sony CFD-V37 Service Manual
Sony CFD-V37 Service Manual

Sony CFD-V37 Service Manual

Cd radio cassette-corder
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SERVICE MANUAL
Ver 1.0 1999 . 04
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)
AM : 530 – 1,605 MHz(E4,EA)
IF
FM : 10.7MHz
AM : 455kHz
Aerials
FM : Telescopic aerial
AM : Built-in ferrite bar aerial
MICROFILM
SPECIFICATIONS
87.6 – 108 MHz(E92)
530 – 1,710 MHz(E92)
CFD-V37
Model Name Using
CD Section
Similar Mechanism
Tape Section
Optical Pick-up Type
Tape Transport Mechanism Type
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 , cone type
(2)
Outputs
Headphones jack (stereo minijack)
For 16 – 64
Power output
2.5 W + 2.5 W (at 3.2 , 10 % harmonic
distortion)
Power requirements
For CD radio cassette-corder :
110 – 120 V, 220 – 240 V AC
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
CD RADIO CASSETTE-CORDER
E Model
CFD-V34
KSM-213CDM
MF-V10-117
impedance headphones
— Continued on next page —

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Summary of Contents for Sony CFD-V37

  • Page 1 Compact disc digital audio system Recording system 4 -track 2 channel stereo Laser diode properties Material: GaAlAs Fast winding time Approx. 120 s (sec.) with Sony cassette Wavelength:780 nm C-60 Emission duration : Continuous Frequency response TYPE1 (normal) : 70 – 10,000 Hz Laser output : Less than 44.6 µW...
  • Page 2 CFD-V37 5-5. SCHEMATIC DIAGRAM — TUNER/SYSTEM SECTION — • Refer to page 34 for IC Block Diagrams. E4,EA MODEL:4.7p E92 MODEL:3.3K L1,CT1(1/4) L2, CT1(2/4) L4,CT1(4/4) E92 MODEL FM TRACKING FM FREQUENCY FM FREQUENCY COVERAGE COVERAGE C1 47p E4,EA MODEL L3,CT1(3/4) AM TRACKING •...
  • Page 3 CFD-V37 5-6. SCHEMATIC DIAGRAM — POWER SECTION — • Waveform 10V/div T301 REC 10 sec/div 40Vp-p 52.75kHz Note: E4,EA MODEL • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
  • Page 4 CFD-V37 5-7. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 34 for IC Block Diagrams. 5-8. IC BLOCK DIAGRAMS CXA12138S 28 27 26 25 24 23 22 21 FM FRONT-END AM FRONT-END FM IF/ MPX REG. DISCRI COUNTER...