Nakamichi DRAGON-CD Limited User manual

DRAGON-CD Limited (CD Player Unit)
i
Service Manual
Service Manual
DRAGON-CD/DAC
Limited
MusicBank CD Player System
DRAGON-CD/DAC Limited Service Manual

DRAGON-CD Limited (CD Player Unit)
ii
CONTENTS
This service manual consists of the following units.
• DRAGON-CD Limited (CD Player Unit)
• DRAGON-PS Limited (Power Supply Unit)
• DRAGON-DAC Limited (DAC)
Note:
This RAGON-CD/DAC Limited Service Manual describes the different items from the
DRAGON-CD/DAC (0Q06188A) issued on April, 1995. For items other than described in
this Service Manual, please refer to the RAGON-CD/DAC Service Manual.
[DRAGON-CD Limited — CD Player Unit]
1. General.................................................................................................................................................................. 1-2
2. Mechanism Ass'y and Parts List ........................................................................................................................ 1-4
2.1. Synthesis ..................................................................................................................................................... 1-4
2.2. Front Panel Ass'y (A01) ............................................................................................................................... 1-6
2.3. Rear Panel Ass'y (A02) ................................................................................................................................ 1-7
2.4. Mechanism Deck Ass'y (A03) ....................................................................................................................... 1-8
2.5. TrayAss'y (B01) ............................................................................................................................................ 1-10
2.6. Side Chassis R Section (B02)....................................................................................................................... 1-11
2.7. Main Chassis Section (B03).......................................................................................................................... 1-12
2.8. Drive Unit CA Section (B04).......................................................................................................................... 1-13
3. Modified Circuit .................................................................................................................................................... 1-14
[DRAGON-PS Limited — Power Supply Unit]
1. Mechanism Ass'y and Parts List ........................................................................................................................ 2-2
1.1. Synthesis ..................................................................................................................................................... 2-2
1.2. Front Panel Ass'y (A01) ................................................................................................................................ 2-3
2. Remote Control Unit ............................................................................................................................................ 2-4
[DRAGON-DAC Limited]
1. General.................................................................................................................................................................. 3-2
2. Parts Location for Electrical Adjustment........................................................................................................... 3-4
3. Electrical Adjustments ........................................................................................................................................ 3-4
4. Mechanism Ass'y and Parts List ........................................................................................................................ 3-5
4.1. Synthesis ..................................................................................................................................................... 3-5
4.2. Front Panel Ass'y (A01) ................................................................................................................................ 3-7
4.3. Rear Panel Ass'y (A02)................................................................................................................................. 3-8
5. Mounting Diagrams and Parts List..................................................................................................................... 3-9
5.1. DIF D-D P.C.B. Ass'y .................................................................................................................................... 3-9
5.2. DAC FA P.C.B. Ass'y .................................................................................................................................... 3-10
6. IC Block Diagrams ............................................................................................................................................... 3-13
7. Block Diagram ..................................................................................................................................................... 3-15
8. Specifications ..................................................................................................................................................... 3-16
Schematic Diagram for DRAGON-DAC Limited (See the end of this manual.)

DRAGON-CD Limited (CD Player Unit)
1-1
DRAGON-CD Limited
(CD Player Unit)
CD Player Unit
DRAGON-CD
Limited
Tri-Stage Isolation
Push
MusicBank CD Player

DRAGON-CD Limited (CD Player Unit)
1-2
CONTENTS
1. GENERAL
1.1. Product Code
V686 1.2. Destinations
USA, CAN, OTR, EP, JPN
Abbreviations
USA — U.S.A.
CAN — Canada
OTR — Other
EP — Europe
JPN — Japan
1. General.................................................................................................................................................................. 1-2
2. Mechanism Ass'y and Parts List ........................................................................................................................ 1-4
2.1. Synthesis ..................................................................................................................................................... 1-4
2.2. Front Panel Ass'y (A01) ............................................................................................................................... 1-6
2.3. Rear Panel Ass'y (A02) ................................................................................................................................ 1-7
2.4. Mechanism Deck Ass'y (A03) ....................................................................................................................... 1-8
2.5. TrayAss'y (B01) ............................................................................................................................................ 1-10
2.6. Side Chassis R Section (B02)....................................................................................................................... 1-11
2.7. Main Chassis Section (B03).......................................................................................................................... 1-12
2.8. Drive Unit CA Section (B04).......................................................................................................................... 1-13
3. Modified Circuit .................................................................................................................................................... 1-14

DRAGON-CD Limited (CD Player Unit)
1-3
1.3. Package Ass'y and Accessory Ass'y
Fig. 1 Schematic
Ref. No. Part No. Description Q'ty
Schematic
Ref. No. Part No. Description Q'ty
— Package Ass'y
01 0F05006A Packing (for Power Supply Unit) 2
02 0F04874A Soft Sheet A (for Power Supply Unit) 1
03 0F05002A Packing F,R (for CD Player Unit) 2
04 0F04956A Soft Sheet (for CD Player Unit) 1
05 0F05001A Inner Carton 1
06 0F05009A Outer Carton 1
— Accessory Ass'y 1
0B80864A AC Cord 2P Socket (USA, CAN) 1
0B80826A AC Cord 2P Socket (JPN, OTR, EP) 1
(for Power Supply Unit)
0B80827A NC 3 Cable Ass'y 1
(for Power Supply Unit)
0C09816B Adaptor 3-Inch 7
0D06703A DIN Cord (for Power Supply Unit) 1
0D06717A CD Cloth 1
0F04931A Soft Sheet 1
— Remote Control Unit 1
DG05497A Owner's Manual (Japanese) 1
DG05498A Owner's Manual (English) 1
DG05515A Owner's Manual 1
(English/German/French)
DG05012A Information Ass'y (Japanese) 1
DG05014A Information Ass'y (English) 1
DG05501A Technical Information Ass'y (Japanese) 1
DG05502A Technical Information Ass'y (English) 1
DG05516A Technical Information Ass'y 1
(English/German/French)
0E03310A M4x6 + Binding (Black) 4
0J04310A Washer Poly Slider FT-40 4

DRAGON-CD Limited (CD Player Unit)
1-4
2. MECHANISM ASS'Y AND PARTS LIST
Schematic
Ref. No. Part No. Description Q'ty Schematic Ref. No. Part No. Description Q'ty
30 0J07486A Mecha Cushion 2
31 0J07456A Seal S 2
32 0J07601A AL Stabilizer Bottom 1
33 0H07020B Bonnet Lower 1
34 0H08608A Emblem 1
L01 0E03889A M5x50 Hex. Bolt
L02 0E03883A Washer 5.5x10x0.8 (Black)
L03 0E00819A Spring Washer 5mm
L04 0J07593A Washer Poly Slider 5mm
L05 0E03872A TP4x20 + Pan (Black)
L06 0E03901A TP3x18 + Countersunk (Black)
L07 0E03853A Shipping Lock Screw
L08 0J04310A Washer Poly Slider FT-40
L09 0E03866A ST3x17 Button Bolt (Black)
L10 0E00857A BT3x6 + Binding
L11 0E03030A M3x6 + Binding
L12 0E00800A ST3x6 + Binding
L13 0E04207A M4x10 Button Bolt (Gold)
L14 0J07594A Washer Poly Slider 4mm
L15 0E00818A M3x8 + Binding (Black)
L16 0E03769A PT2.6x8 + Binding
L17 0E03900A M3x5 Hex. FH (Black)
L18 0E03746A M3x6 Countersunk
L19 0E03805A PT3x9.5 Special Screw
L20 0J07534A Insulator
L21 0E03815A PT3x12 + Flat Head
2.1. Synthesis
Fig. 2.1.1 Synthesis (1/2)
2.1. Synthesis
— Synthesis
01 0J07542B Sleeve 8
02 0H07021A Side Wood Plate 2
03 0H07024A Side Spacer A 8
04 0H07023A Leg 4
05 0J07543A Leg Cushion 4
06 0H07014B Bonnet Upper 1
07 0J07481B Collar 8
08 0J07507A Al Stabilizer Upper 1
09 — Rear Panel Ass'y 1
10 BA09409A Main P.C.B. Ass'y 1
11 — Front Panel Ass'y 1
12 BA09210A Tilt Switch P.C.B. Ass'y 1
13 0B80685A 3P Connector Ass'y CN107 1
14 0J07540B Channel 2
15 0J07285A Cushion Channel 2
16 CG09331A Mechanism Deck Ass'y 1
17 0H07026A Lid 1
18 0B80671A 12P Connector Ass'y CN104 1
19 0B80672A 4P Connector Ass'y CN105 1
20 0B80670B 6P Connector Ass'y CN103 1
21 0J07539B Sub Chassis 2
22 0J07538A Damper 4
23 3J07491A Damper SL R 2
24 3J07490A Damper Holder R 2
25 3J07489A Damper Holder F 2
26 3J07492A Damper SL F 2
27 0J07352A Spring Sus Front 2
28 JG04906A Main Chassis Ass'y 1
29 0J07260A Spring Sus Rear 2

DRAGON-CD Limited (CD Player Unit)
1-5
Fig. 2.1.2 Synthesis (2/2)

DRAGON-CD Limited (CD Player Unit)
1-6
2.2. Front Panel Ass'y (A01)
Fig. 2.2
2.2. Front Panel Ass'y (A01)
A01 — Front Panel Ass'y 1
01 0H08620A Knob Ass'y 2
02 0J07595A Washer 12.2mm 2
03 0H08609A Front Door 1
04 0H06935B Door Sponge 1
05 0H07092A Door Spacer 2
06 0J07495A Spring K 2
07 0J07485A Knob Spacer B 2
08 0H06954A Door Pin 1
09 0H08607A Door Hinge 1
10 0H06955A Cushion D 2
11 0H07017A Door Base 1
12 0J07484C Lock Stud 2
13 0H07012A Front Panel 1
14 0H07088A Front Shield 1
15 0J07503C Door Switch Sheet 1
16 HA07021B Indicator Ass'y 1
17 0H06770C Button Disc 1
18 0J07325B Diffusion Sheet 1
19 0J07579A Diffusion Sheet (Gray) 1
L01 0E03851A C Stopper
L02 0E03867A M2.6x5 + Pan
L03 0E03850A M2.6x5 + Binding 3A (Black)
L04 0E00896A M3x6 + Binding
L05 0E03243A M2x2.5 + Pan
L06 0E03529A M2x4 + Binding
L07 0J07612A Washer 4x2.1x0.5
Schematic
Ref. No. Part No. Description Q'ty Schematic
Ref. No. Part No. Description Q'ty

DRAGON-CD Limited (CD Player Unit)
1-7
2.3. Rear Panel Ass'y (A02)
Fig. 2.3
Schematic
Ref. No. Part No. Description Q'ty
2.3. Rear Panel Ass'y (A02)
A02 — Rear Panel Ass'y 1
01 BA09410A Digital Out P.C.B. Ass'y 1
02 0H07088A Front Shield 1
03 0H07013A Rear Panel 1
04 0B80830A 3P XLR Connector (Male) [PJ803] 1
05 0B80828A 1P Pin Jack (WHT) [PJ801] 1
06 0B80862A 1P Pin Jack (RED) [PJ802] 1
07 0B80863A 1P Pin Jack (YEL) [PJ301] 1
08 0B84524A RCA Cap 3
09 0B22666A RM 10 1/4W F [R561L,R] 2
10 0B22567A RM 100 1/4W F [R560] 1
11 0B41823A CML 0.01 50V J [C560] 1
L01 0E00964A M3x5 + Binding
L02 0E03905A ST3x6 + Countersunk (Black)
L03 0E00985A M3x6 + Binding (Black)

DRAGON-CD Limited (CD Player Unit)
1-8
Lubricant (Grease)
A
AA:FLOIL G425
B
BB:FLOIL FL777
2.4. Mechanism Deck Ass'y (A03)
Fig. 2.4