Nakamichi DVD-15 - User Manual

1
DVD-15
5 Disc MusicBank DVD Changer
Service Manual
R
CONTENTS
1. GENERAL .............................................................................................................................. 2
2. REMOVAL PROCEDURES.................................................................................................... 4
3. ELECTRICAL ADJUSTMENT ............................................................................................... 9
3-1 Measurement instruments and jigs .................................................................................. 9
3-2 Parts location for adjustment ............................................................................................ 9
3-3 Adjustment Procedure.................................................................................................... 10
3-4 RAM Clear...................................................................................................................... 11
4. MECHANICAL ASS’Y AND PARTS LIST ........................................................................... 12
4-1 Synthesis Ass’y .............................................................................................................. 12
4-2 Mechanism Ass’y DVD-15 (A01) ................................................................................... 14
4-3 Motor Chassis EX Ass’y (B01) ....................................................................................... 16
4-4 Loading EX Ass’y ADJ-3 (B02) ..................................................................................... 17
4-5 DVD Traverse Ass’y ADJ-3 (B03) ................................................................................... 19
4-6 Pakage Ass’y and Accessory Ass’y ............................................................................... 20
5. ELECTRICAL PARTS LIST ................................................................................................. 21
6. RECOMMENDED SPARE PARTS LIST .............................................................................. 26
7. IC BLOCK DIAGRAMS........................................................................................................ 27
8. SPECIFICATIONS................................................................................................................49
For Schematic Diagrams, and Mounting Diagrams, see the separate volume.

Summary

1. General Information and Safety

1.1 Product Code and Destinations

Identifies the product code and supported geographical regions.

Abbreviations Used

Defines common abbreviations used throughout the service manual.

1.3 Cautions and Warnings

Provides essential safety notices and cautions for servicing the device.

2. Removal Procedures

Location of Major Parts

Identifies the location of key internal components within the chassis.

2.1 Top Cover Removal

Details the procedure for removing the device's top cover.

2.2 Front Panel Removal

Provides steps for removing the front panel assembly.

2.3 Mechanism Block Removal

Outlines the process for detaching the main mechanism block.

2.4 DVD Main P.C.B. Assy Removal

Describes how to remove the main DVD printed circuit board assembly.

2.5 Mechanism Assy Removal

Explains the procedure for removing the mechanism assembly.

2.6 External Assembly Removal

Covers removal of bottom, top, and front panel external assemblies.

2.7 Mechanism P.C.B. Assy Removal

Details the removal of the mechanism's printed circuit board assembly.

2.8 Loading EX Assy Removal

Provides instructions for removing the disc loading mechanism assembly.

2.9 DVD Traverse Assy Removal

Outlines the steps to remove the DVD traverse assembly.

2.10 Pickup Removal

Details the procedure for removing the laser pickup unit.

3. Electrical Adjustment Procedures

3.1 Measurement Instruments and Jigs

Lists necessary instruments and jigs for electrical adjustments.

3.2 Parts Location for Adjustment

Shows the locations of adjustment points on the PCB.

3.3 Adjustment Procedure

Step-by-step guide for performing electrical adjustments.

3.4 RAM Clear Procedure

Procedure to clear RAM settings and initialize the mechanism.

4. Mechanical Assembly and Parts List

4.1 Synthesis Assy Parts

Lists parts for the main chassis and external assemblies.

4.2 Mechanism Assy DVD-15 (A01) Parts

Details parts and diagrams for the DVD mechanism assembly.

4.3 Motor Chassis EX Assy (B01) Parts

Lists components for the motor chassis assembly.

4.4 Loading EX Assy ADJ-3 (B02) Parts

Provides parts list and diagrams for the loading assembly.

4.5 DVD Traverse Assy ADJ-3 (B03) Parts

Lists parts and diagrams for the DVD traverse assembly.

4.6 Package and Accessory Assy

Details packaging materials and included accessories.

5. Electrical Parts List

5.1 Mechanism P.C.B. Assy (C3 M1) Parts

Lists electrical components for the mechanism PCB.

5.2 DVD Main P.C.B. Assy (C3 M1) Parts

Lists electrical components for the main DVD PCB.

5.3 Digital P.C.B. Assy Parts

Lists electrical components for the digital PCB.

5.4 Output P.C.B. Assy Parts

Lists electrical components for the output PCB.

5.5 Front P.C.B. Assy Parts

Lists electrical components for the front PCB.

5.7 P-Supply P.C.B. Assy Parts

Lists electrical components for the power supply PCB.

6. Recommended Spare Parts List

7. IC Block Diagrams

7.1 AD1855 (A;D Converter) IC Block Diagram

Block diagram for the AD1855 A/D converter IC.

7.2 ADV7172 (Video Decoder) IC Block Diagram

Block diagram for the ADV7172 video decoder IC.

7.3 BA5938 FM (Power Driver) IC Block Diagram

Block diagram for the BA5938FM power driver IC.

7.5 CYC11 AP000 (DVD Pre-AMP) IC Block Diagram

Block diagram for the CYC11AP000 DVD pre-amplifier IC.

7.6 CYC12 AP000 (Read Channel) IC Block Diagram

Block diagram for the CYC12AP000 read channel IC.

7.7 HD6433396 A32 F (Mechanism Controller) IC Block Diagram

Block diagram for the HD6433396A32F mechanism controller IC.

7.11 MB90574 (CPU;MI-COM) IC Block Diagram

Block diagram for the MB90574 CPU/MI-COM IC.

7.12 MN67700 (Servo Processing IC) Block Diagram

Block diagram for the MN67700 servo processing IC.

7.15 μPD78 F4225 YGC (System Controller) IC Block Diagram

Block diagram for the μPD78F4225YGC system controller IC.

7.18 ZIVA-3 (MPEG AV Decoder) IC Block Diagram

Block diagram for the ZIVA-3 advanced DVD decoder IC.

8. Specifications

Nakamichi DVD-15 Specifications

General

Brand	Nakamichi
Model	DVD-15
Category	CD Player
Language	English