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Sony CFM-D1 - Service Manual

Sony CFM-D1
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Battery FM recording Tape Playback
Sony Approx. 20 Approx. 18
R20P hours hours
Sony LR20 Approx. 48 Approx. 30
alkaline hours hours
Model Name Using Similar Machanism NEW
Tape Transport Mechanism Type MF-D1
SERVICE MANUAL
SPECIFICATIONS
E Model
CFM-D1
RADIO CASSETTE-CORDER
Frequency range
FM : Saudi Arabia model
87.6-107MHz
EXCEPT Saudi Arabia model
87.6-108MHz
MW : 530-1,605kHz
SW 1 : 2.3-7MHz
SW 2 : 7-22MHz
Aerials
FM/SW : Telescopic aerial
MW : Built-in ferrite aerial
Recording system
2-track, mono
Frequency response
50-12,000Hz
Speakers
Approx. 7.7 cm ( 3
1
/8 inches) dia.
Woofer x2
Maximum power output
2W
Output
Earphone jack(minijack) for
32 ohms impedance earphone
Power requirements
110-120 V, 220-240 V AC selectable, 50/60Hz
6V DC, four R 20 (size D) batteries
Dimensions
Approx 330x147x120 mm
(w/h/d)
(13x5
7
/8x4
3
/4 inches) including
projecting parts
Mass
Approx. 2.2kg (4lb 9 oz) including
batteries
Accessory supplied
Mains lead (1)
Design and specifications are subject to change without
notice.
Power consumption
6W AC operation
Battery life
Ver 1.1 2002.02
9-960-487-12
2002B0200-1
© 2002.02
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation

Table of Contents

Other manuals for Sony CFM-D1

Preview: Operating Instructions
Operating Instructions2 pages
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Summary

Device Specifications

General Information

Controls and Operation

Identifies and explains the purpose of all buttons, knobs, and indicators on the device.

Dial Pointer Setting

Adjustments and Calibration

Mechanical Adjustments

Details procedures for adjusting mechanical parts like heads, pinch rollers, and tape tension.

Electrical Adjustments

Outlines electrical alignment procedures for radio and tape sections.

Technical Diagrams

Printed Wiring Boards

Illustrates the layout of components on the printed circuit boards.

Schematic Diagrams

Provides the electrical circuit schematics for the device.

Exploded Views and Parts

Front Cabinet Exploded View

Details components and their assembly for the front cabinet section.

Rear Cabinet Exploded View

Details components and their assembly for the rear cabinet section.

Mechanism Deck Exploded View (Part 1)

Illustrates the first part of the tape mechanism components and their assembly.

Mechanism Deck Exploded View (Part 2)

Illustrates the second part of the tape mechanism components and their assembly.

Electrical Parts List

Summary

Device Specifications

General Information

Controls and Operation

Identifies and explains the purpose of all buttons, knobs, and indicators on the device.

Dial Pointer Setting

Adjustments and Calibration

Mechanical Adjustments

Details procedures for adjusting mechanical parts like heads, pinch rollers, and tape tension.

Electrical Adjustments

Outlines electrical alignment procedures for radio and tape sections.

Technical Diagrams

Printed Wiring Boards

Illustrates the layout of components on the printed circuit boards.

Schematic Diagrams

Provides the electrical circuit schematics for the device.

Exploded Views and Parts

Front Cabinet Exploded View

Details components and their assembly for the front cabinet section.

Rear Cabinet Exploded View

Details components and their assembly for the rear cabinet section.

Mechanism Deck Exploded View (Part 1)

Illustrates the first part of the tape mechanism components and their assembly.

Mechanism Deck Exploded View (Part 2)

Illustrates the second part of the tape mechanism components and their assembly.

Electrical Parts List

Overview

  1. Function Description
  2. Important Technical Specifications
  3. Usage Features
  4. Maintenance Features

The Sony CFM-D1 is a portable radio cassette-corder designed for both audio playback and recording, featuring a dual-speaker system for enhanced sound. This device is an E Model, indicating its specific regional configuration.

Function Description:

The CFM-D1 serves as a versatile audio device, combining a radio receiver with a cassette player and recorder. It supports both AC power (selectable between 110-120V and 220-240V, 50/60Hz) and DC power (6V, using four R20/size D batteries), making it suitable for both home and portable use. The cassette section allows for playback and recording of audio, with a 2-track, mono recording system. The radio section offers multi-band reception, including FM, MW, SW1, and SW2, catering to a wide range of broadcast frequencies.

Important Technical Specifications:

  • Frequency Range:
    • FM: 87.6-107MHz (Saudi Arabia model), 87.6-108MHz (EXCEPT Saudi Arabia model)
    • MW: 530-1,605kHz
    • SW1: 2.3-7MHz
    • SW2: 7-22MHz
  • Aerials:
    • FM/SW: Telescopic aerial
    • MW: Built-in ferrite aerial
  • Recording System: 2-track, mono
  • Frequency Response: 50-12,000Hz
  • Speakers: Two 7.7 cm (3 1/8 inches) diameter woofers.
  • Maximum Power Output: 2W
  • Output: Earphone jack (minijack) for 32 ohms impedance earphone.
  • Power Requirements:
    • AC: 110-120V, 220-240V AC selectable, 50/60Hz
    • DC: 6V, four R20 (size D) batteries
  • Power Consumption: 6W (AC operation)
  • Battery Life (approximate):
    • FM recording: 20 hours (Sony R20P), 48 hours (Sony LR20 alkaline)
    • Tape Playback: 18 hours (Sony R20P), 30 hours (Sony LR20 alkaline)
  • Dimensions (W/H/D): Approx. 330 x 147 x 120 mm (13 x 5 7/8 x 4 3/4 inches), including projecting parts.
  • Mass: Approx. 2.2kg (4lb 9 oz), including batteries.
  • Accessory Supplied: Mains lead (1).

Usage Features:

The CFM-D1 is designed for user-friendly operation with clearly labeled controls.

  • Tape Operation Buttons: Standard controls for PAUSE, STOP/EJECT, FF (fast-forward), REW (rewind), PLAY (playback), and REC (record) are available.
  • Volume Control: A dedicated knob allows for easy adjustment of audio output.
  • Tone Control: Provides customization of the audio tone.
  • OPR/BATT Indicator: A visual indicator for operation status and battery level.
  • Function Selector: Allows switching between Radio and TAPE (with a Radio off option).
  • Band Selector: Enables selection of FM, SW1, SW2, or MW radio bands.
  • Tuning Control: A main tuning knob for radio frequency selection.
  • Fine Tuning Control: Offers precise adjustment for optimal radio reception.
  • Built-in MIC: An integrated microphone for recording audio directly onto cassette tapes.
  • Earphone Jack: For private listening.
  • Dual Speaker System: Enhances audio output quality.
  • One-Touch Recording: Simplifies the recording process.
  • Auto Shut-Off: A feature for the cassette mechanism to prevent tape damage.

Maintenance Features:

The service manual outlines specific maintenance procedures to ensure the device's longevity and optimal performance.

  • Cleaning: Regular cleaning of critical parts such as the record/playback head, pinch roller, erase head, capstan, rubber belts, and idlers with a denatured-alcohol-moistened swab is recommended.
  • Demagnetization: The record/playback head should be demagnetized using a head demagnetizer, taking care not to bring it close to the erase head.
  • Torque Measurement: Procedures for measuring playback, rewind, fast forward, and back tension torque are provided, along with specified ranges, to ensure proper tape transport mechanism function.
  • Tape Speed Adjustment: Detailed steps for adjusting tape speed using a test tape (3kHz, 0dB) and a speed checker or digital frequency counter are included, aiming for a frequency range of 2,970-3,030 Hz and a frequency difference within 0.35%.
  • Record/Playback Head Azimuth Adjustment: Instructions for adjusting the azimuth of the record/playback head using a test tape (6.3kHz, -10dB) and a VTVM or distortion meter to achieve maximum output levels.
  • Electrical Adjustments: Comprehensive guidelines for radio section adjustments, including FM IF alignment, FM frequency coverage adjustment, AM (MW/SW) IF alignment, MW/SW1/SW2 frequency coverage adjustment, and tracking adjustments for FM, MW, SW1, and SW2. These adjustments involve using signal generators, VTVMs, and distortion meters to optimize reception and performance.
  • Safety-Related Components: The manual highlights critical components identified by specific marks (▲ or dotted line with ▲) on schematic diagrams and in the parts list. These components are crucial for safe operation and must be replaced with genuine Sony parts whose part numbers are specified in the manual or supplements.
  • Exploded Views and Parts List: Detailed exploded views of the front cabinet, rear cabinet, and mechanism deck sections, along with an electrical parts list, are provided to facilitate repair and replacement of components. These lists include part numbers, descriptions, and remarks, aiding in accurate servicing.
  • Standardization Notes: Information regarding standardized parts (-XX, -X suffixes) that may differ slightly from original ones, and the availability status of certain parts (marked with "*") that may require anticipation of delay for ordering.
  • Abbreviations: Clarifications for abbreviations used in the manual, such as regional codes (EA for Saudi Arabia, UAE for United Arab Emirates, E15 for 220-240V AC Area, SP for Singapore, E23 for 110-120V AC Area) and component specifications (u for micro, F for nonflammable resistors).

Sony CFM-D1 Specifications

General IconGeneral
BrandSony
ModelCFM-D1
CategoryCd radio cassette-corder
LanguageEnglish

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