Marantz CD-57, CD-67, CD-67SE Compact Disc Player Service Manual

Table of Contents

• 1. Technical Specifications
• 2. Service Mode
• 3. Microprocessor and IC Data
• 4. Block Diagram
• 5. Schematic Diagrams and Parts Locations (Pattern Side)
• 6. Exploded View and Parts List
• 7. Electrical Parts List

1. Technical Specifications

Specifications subject to change without prior notice.

CAUTION ⚠️ INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAM.

VARO! ? AVATTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER SÄTTEILYLLE ÄLÄ KATSO SÄTEESEN.

VARNING ? USYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN.

ADVERSEL ? USYNLIG LASERSTRÅLING VED ÅBNING. UNDGÅ UNSAETTELSE FOR STRÅLING.

DANGER ? INVISIBLE LASER RADIATION WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM.

VORSICHT ? UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET. NICHT DEM STRAHL AUSSETZEN.

CLASS 1 LASER PRODUCT

KLASSE 1 LASER PRODUKT

I.H.T. IEC 825

2. Service Mode

1. How to enter into the Service Mode
   • Turn the power on while pressing at least 2 of [STOP], [PLAY], [NEXT], [PREV] keys.
2. Mode 0 (Display P00)
   Condition: [FOCUS OFF] [SPINDLE OFF] [RADIAL OFF] [MUTE ON]
   
   • The Sled moves outside when pressing [CUE] key.
   • The Sled moves inside when pressing [REVIEW] key.
   • The function moves to Mode 1 when pressing [NEXT] key.
3. Mode 1 (Display P01)
   Condition: [FOCUS ON] [SPINDLE OFF] [RADIAL OFF] [MUTE ON]
   
   • The function moves to Mode 2 when pressing [NEXT] key.
   • The function moves to Mode 0 when pressing [PREV] key.
4. Mode 2 (Display P02)
   Condition: [FOCUS ON] [SPINDLE ON] [RADIAL OFF] [MUTE ON]
   
   • The function moves to Mode 3 when pressing [NEXT] key.
   • The function moves to Mode 0 when pressing [PREV] key.
5. Mode 3 (Display P03)
   Condition: [FOCUS ON] [SPINDLE ON] [RADIAL ON] [MUTE OFF]
   
   • The function moves to Mode 2 when pressing [PREV] key.
6. The following key operations can be available in all service mode conditions:
   
   • Pressing [STOP] key lights up all FL displays.
   • Pressing [PAUSE] key displays the model number and µ-processor version number. (e.g., Cd 67: 10, μ-Processor Version Nbr.)
   • Pressing [PLAY] key performs normal operation (except Service mode). If an error is detected, an error code is displayed (e.g., Err 10). The content for each error code is shown below.

   Error Code	Error
   Err 02	FOCUS Error
   Err 07	SUB CODE Error
   Err 08	T. O. C Error
   Err 09	DECODER Error
   Err 10	RADIAL Error
   Err 11, 12	SLED Error
   Err 13	SPINDLE Error
   Err 16~20	SEARCH Error
   Err 30	DOOR Error
   Err 31	TRAY Error
   Err 32 - 47	KEY INPUT Error

7. Cancelling the Service Mode
   • The Service Mode is cancelled by turning the power off.

3. Microprocessor and IC Data

MN187164 (MICROPROCESSOR)

A block diagram of the MN187164 microprocessor shows its various internal components including ALU, Adder, ROM, RAM, Program Decoder, and drivers for ports and displays. The pin assignments and functions are detailed in the table below:

SAA7372GP (DIGITAL DECODING IC WITH RAM)

The SAA7372GP is a digital decoding IC with RAM. Its pin functions are detailed below:

SM5872BS (DIGITAL FILTER AND D/A CONVERTER)

The SM5872BS is a digital filter and D/A converter. Its pin functions are detailed below:

4. Block Diagram

The block diagram illustrates the interconnected components of the Marantz CD player, including the digital servo processor, demodulator, error correction, microprocessor, LPF and buffer, DAC, and various motor controls and display drivers. Key components like the MN187164 microprocessor and SM5872BS digital filter/DAC are central to the system's operation. The diagram also shows the servo control, key sensing, and display control sections, along with power supply and output connections.

5. Schematic Diagrams and Parts Locations (Pattern Side)

This section contains detailed schematic diagrams and parts location layouts for the main PCB (P116) and the servo PCB (P126). These diagrams provide a visual representation of component placement and interconnections, crucial for service and repair.

6. Exploded View and Parts List

The exploded view provides a visual breakdown of the Marantz CD player's assembly, showing the relationship between various parts. The accompanying parts list details each component with its part number, description, and quantity, facilitating the identification and procurement of replacement parts for different versions (e.g., CD-57, CD-67, CD-67SE, and specific regional versions like U.S.A., Europe, Japan, Far East).

7. Electrical Parts List

This section lists the electrical components used in the Marantz CD players, categorized by component type (Resistors, Capacitors, Semiconductors, ICs, etc.). Each entry includes the part number, description, and often specific values or types. It also provides notes on safety for fusible resistors and general safety precautions regarding component substitution.

Assignment of Common Parts Codes:

RESISTOR

• R***: (1) GD05 x x x 140, Carbon film fixed resistor, ±5% 1/4W
• R***: (2) GD05 x x x 160, Carbon film fixed resistor, ±5% 1/6W

KOA Corporation Part Numbers:

• NH05 x x x 140, NH05 x x x 120, NH85 x x x 110, NH85 x x x 140
• Resistance values are coded numerically (e.g., 001 for 0.1 Ω, 100 for 10 Ω, 102 for 1 KΩ, 104 for 100 KΩ).

Matsushita Electronic Components Co., Ltd Part Numbers:

• NF05 x x x 140, RF05 x x x 140, NF02 x x x 140, RF02 x x x 140
• Resistance values are coded numerically.

C***: CERAMIC CAP.

• (1) DD1x x x x 370, Ceramic capacitor, Disc type, Temp. coeff. P350 N1000, 50V
• (2) DK16 x x x 300, High dielectric constant ceramic capacitor, Disc type, Temp. chara. 2B4, 50V
• Capacity values are provided with numerical codes (e.g., 005 for 0.5 pF, 010 for 1 pF, 101 for 100 pF).
• Tolerance values are also specified (e.g., ±0.25pF, ±0.5pF, ±5%).

C***: ELECTROLY CAP. (), FILM CAP. (+)

• (1) EA x x x x x x 10, Electrolytic capacitor, One-way lead type, Tolerance ± 20%
• Working voltage and capacity values are listed.
• (2) DF15 x x x 350, Plastic film capacitor, One-way type, Mylar ± 5% 50V
• (3) DF15 x x x 310, Plastic film capacitor, One-way type, Mylar ± 10% 50V

ABBREVIATION AND MARKS:

• ANT.: ANTENNA, BATT.: BATTERY, CAP.: CAPACITOR, CER.: CERAMIC, CONN.: CONNECTING, DIG.: DIGITAL, HP: HEADPHONE, MIC.: MICROPHONE, μ-PRO: MICROPROCESSOR, REC.: RECORDING, RES.: RESISTOR, SPK: SPEAKER, SW: SWITCH, TRANSF.: TRANSFORMER, TRIM.: TRIMMING, TRS.: TRANSISTOR, VAR.: VARIABLE, X'TAL: CRYSTAL

NOTE ON SAFETY FOR FUSIBLE RESISTOR:

The suppliers and their type numbers of fusible resistors are as follows:

• KOA Corporation: RF25S, RF50S, RF73B2A, RF73B2E series.
• Matsushita Electronic Components Co., Ltd: ERD-2FCJ, ERD-2FCG series.

NOTE ON SAFETY:

Symbol ▲ indicates fire or electrical shock hazard. Only original parts should be used to replace any part marked with symbol ▲. Any other component substitution (other than original type), may increase risk of fire or electrical shock hazard.

安全上の注意: ▲ がついている部品は、安全上重要な部品です。必ず指定されている部品番号の部品を使用して下さい。

Marantz Contact Information

For parts and service, Marantz has established subsidiaries and agents worldwide. The manual lists contact details for Marantz America, Inc., Marantz Canada, Marantz Europe B.V., and various distributors in Australia, Brazil, Hong Kong, Japan, Malaysia, Singapore, Taiwan, and Thailand.

Shock, Fire Hazard Service Test

CAUTION: After servicing this appliance and prior to returning to the customer, measure the resistance between either primary AC cord connector pins (with unit NOT connected to AC mains and its Power switch ON), and the face or Front Panel of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms should cause the unit to be repaired or corrected before AC power is applied, and verified before it is returned to the user/customer. Refer to UL Standard NO. 1492.