Marantz CD-7 User Manual

VIDE-V23843
74 CD7 /ozc
Service
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CD-7
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M an U al Compact disc player
COMPACT
DIGITAL AUDIO
TABLE OF CONTENTS
SECTION PAGE
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Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
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model CD-7

Marantz CD-7 Specifications

General

Type	CD Player
Disc formats	CD, CD-R, CD-RW
Frequency Response	2 Hz - 20 kHz
Dynamic range	100 dB
Digital outputs	Coaxial, Optical
Dimensions	416 x 86 x 366 mm
Weight	8.5 kg
Output Level	2.0 V

Summary

1. TECHNICAL SPECIFICATIONS

Audio Characteristics

Detailed audio performance specifications including frequency, dynamic range, and S/N ratio.

Optical Readout System

Specifications for the laser wavelength and semiconductor used in the optical pickup.

2. SERVICING HINTS

Servicing Precautions

Critical safety and handling advice to prevent damage during repair.

4. SERVICE MODE

Entering and Operating Service Mode

Instructions for accessing service mode, navigating through modes, and using controls.

5. MICROPROCESSOR AND IC DATA

11. TRAY MECHANISM ADJUSTMENTS

Tray Case Mounting Procedure

Steps for correctly mounting the tray and tray case.

Tray Disengagement and Re-engagement

Guidance on managing tray disengagement and re-engagement.

Sub-chassis Replacement Adjustments

Adjustments required after replacing the sub-chassis unit.

14. EXPLANATION OF DSP

DSP-1 (Q507) Functions

Details on DSP-1 (Q507) operations including Mute and De-emphasis.

DSP-2 (Q509) Functions

Details on DSP-2 (Q509) operations including digital filtering and noise shaping.

DSP Operation and Parameter Flow

Explanation of DSP initialization, parameter loading, and signal flow.