Nakamichi OMS-7II, OMS-7AII, OMS-7EII, OMS-70II Service Manual

CONTENTS

1.	General		.....••.•..•.••••..•••..•..•...•...••.••.•..••..••• • •••• • • • • • • • • • • • · •			1
2.	Pickup Replacement Procedures				•••••••••••••••••••••••••••••••••••••••••••••••	1
	2.	1.	Notice in Handling		Pickup••••••••••••••••••••••••••••••••••••••••	1
	2.	2.	Pickup Replacement		Procedur,es ••••••••••••••••••••••••••••••••••••	1
	2.	3.	Adjustment After Replacement of Pickup •••••••••••••••••••••••••••			2
3.	Measurement Instruments and Test Discs••••••••••••••••••••••••••••••••••••••					3
4.	Parts Location for Adjustment•••••••••••••••••••••••••••••••••••••••••••••••					3
	4.	1.	Parts on P.C.B. Ass'y •••••••••••••••••••••••••••••••••••••• • • • • • •			3
5.	Adjustments .................................................................					4
	s.	1.	Note ............................................................			4
	s.	2.	Adjustment Instructions •••••••••••••••••••••••••••••••••••••••••			4
6.	Mechanism Ass'y and Parts List••••••••••••••••••••••••••••••••••••••••••••••					5
	6.	1.	Synthesis ••••••••••••••••••••••••••••••••••••••••••••••• • • • • • • • • •			5
	6.	2.	Front Panel Ass' y · ••••••••••••••••••••••.••••••••••••••••.••••••••			6
	6.	3.	Chassis Ass'y ••••••••••••••••••••••••••••••••••••••••••••••••••••			7
	6.	4.	Disc Mechanism Ass•y •••••••••••••••••••••••••••••••••••••••••••••			8
	6.	s.	Disc Mechanism Sub Ass'y •••••••••••••••••••••••••••••••••••••••••			10
7.	Mounting Diagrams and Parts List••••••••••••••••••••••••••••••••••••••••••••					11
	7.	1.	Photo Transistor P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••			11
	7.	2.	Photo Diode P.C.B. Ass'y •••••••••••••••••••••••a•••••••••••••••••			11
	7.	3.	Power Switch P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••••••			11
	7.	4.	Close End Switch P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••			11
	7.	s.	Eject/Load Switch P.C.B. Ass'y •••••••••••••••••••••••••••••••••••			11
	7.	6.	Inner End Switch P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••			11
	7.	7.	Open End Switch P.C.B. Ass'y •••••••••••••••••••••••••••••••••••••			11
	1.	a.	FL Indicator P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••••••			12
	7.	9.	Power Transformer P.C.B. Ass'y •••••••••••••••••••••••••••••••••••			12
	7.	10.	Volume P.C.B. Ass'y •••••••••••••••••••••••••••••••••••••••••• • • • •			12
	7.	11.	Wired Remote Control P.C.B. Ass'y •••••••••••••••••••••••••••••••••			12
	7.	12.	Voltage Selector P.C.B. Ass'y •·••••••••••••••••••••••••••••••••••			12
	7.	13.	Headphone Amp. P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••••			13
	7.	14.	Fuse P.C.B. Ass'y		••••••••••••••••••••••••••••••••••••••••••••••••	13
	7.	15.	Power Transformer P.C.B. Ass'y •••••••••••••••••••••••••••••••••••			13
	7.	16.	Control Switc·h P.C.B. Ass'y ••••••••••••••••••••••••••••••••••••••			14
	7.	17.	Remote Receiver P.C.B. Ass'y •••••••••••••••••••••••••••••••••••••			14
	7.	18.	Main P.C.B. Ass'y ••••••••••••••••••••••••.••••••.•••••••••• • • • • • •			15
a.	7.	19.	D/A Converter P.C.B. Ass'y •••••••••••••••••••••••••••••••••••••••			17
	Schematic Diagram ••••••••••••••••••••••••••••••••••••.••••••••••••• • • • • • • • • •					19
	a.	1.	IC Block Diagrams and Descriptions•••••••••••••••••••••••••••••••			19
	a.	2.	Circuit Description••••••••••••••••••••••••••••••••••••••••••••••			25
	a.	3.	Waveform at Major Points•••••••••••••••••••••••••••••••••••••••••			28
9.	a.	4.	Schematic Diagram••••••••••••••••••••••••••••••••••••••••••••••••			29
	Wiring Diagram			••••••••••••••••••••••••••••••••••••••••••••••••••••••••• • • • • •		31
10.	Block Diagram			•••••••••••••••••••••••.••••••••••••••••••••••••••••••••••• • • • • •		32
11.	Specifications			••••••••••••••••••••••••••••••••••••••••••••••••••••••••• • • • • •		33

1. GENERAL

1.1 Voltage Selector

Voltage selector is installed on the rear panel of the Other version of the Nakamichi OMS-7II.This voltage selector can select either llOV, l20V or 220-240V at customer's disposal.

1.2 Packing Materials and Owner's Manual

Part No.	Descri12tion			2-'..ll
OC82066A	Outer Carton OMS-7AII			1
OC82067A	Outer Carton OMS-7EII			1
OC82068A	Outer Carton OMS-70II			1
OC82065A	Outer Carton OMS-7II			1
OC82074A	Inner Carton OMS-7AII			1
OCB2075A	Inner Carton OMS-7EII			1
OCB2076A	Inner Carton OMS-70II			1
OC82073A	Inner Carton OMS-7II			1
OCB2082A	Packing Cushion L			1
OCB2083A	Packing Cushion R			1
OC82176A	Plastic Bag			1
OD04643A	Owner's Manual OMS-7AII/7II	&	OMS-SAII/SII	l
	(English)
OD04644A	Owner's Manual OMS-7II/7EII	&	OMS-SII/SEII
OD04642A	(English/German/French)
	Owner's Manual OMS-70II/50II		(Japanese)	1

2. PICKUP REPLACEMENT PROCEDURES

2.1 Notice in Handling Pickup

In case of repair or replacement of the Pickup, pay attention to the following handling instructions since the laser diode in the

Pickup is not resistant to electricity.

( 1) Repair or replace on a work stand on which the conducting rubber is spread.

(2)Use ceramic soldering iron with GND.

(3) Since the	Pickup is	supplied	as	a spare part	in a
conductive	bag, take	it out of	the	bag only when you	need
it.

(4)NEVER turn the adjustment screws of the Pickup.

2.2 Pickup Replacement Procedures

(1)Place the Compact Disc Player upside down on the work stand

and remove the Bottom Cover by unfastening 10 screws and the shipping bracket.

(2)Rotate the pulley of the Disc Mechanism Ass'y to move the

Pickup in the direction of the arrow. See Fig. 2.1.

(4)Remove LOB and two connectors. See Fig 2.2.

Fig. 2.2

CAUTION

Short the short-terminals on the Pickup during repair or replacement and open them after entire work is completed. Do not touch the Pickup while the short-terminals are open.

			Important note		for servicing
To	avoid		static	breakdown of	the	laser	diode,		the	APC
connector			(JU102)	is not be disconnected			when	the	power	is
on	or	off.
Before		removing connector JU102 for				servicing,		be	sure	to

solder on the shorting rounds on the laser pickup to short them out. While to assemble the pickup, first connect the JU102 to the Main P.C.B. then open the rounds on the pickup and turn the power on.

NOTE:Use a ceramic heater solder iron with little leak current.

To determine the failure of the laser pickup, sizing the voltage across the pickup can be a key. Connect a digital voltmeter across R601 and press the PLAY button. The

current (I) can be calculated as:

		(I) = Voltage across R601 / 22 (ohm)
The	laser	pickup is normal	if (I) is obtained within 10\ of
the	value	specified on the	individual pickup. But (I) shows

tendancy to increase when the laser pickup is used over 1000 hours.

--- 69.4rnA

Fig. 2.1

	Fig.	2.3
WARNING:
To	Protect eyes from laser beam during servicing, 00 NOT LOOK AT
THE	LASER BEAM.
Note: Laser Diode Properties
	Material:	GaAlAS
	Wavelength:	760nrn-800nm
	Emission Duration:	continuous
	Laser Output:	0.4mW max.
	Classification:	Class IIIb

1

(S}	Remove	L09 and pull out 03, See Fig, 2.4,
(6)	Mount	the new Pickup by reversing	the	disassembly

procedure.

(7)Open the short-terminals after connecting the connectors, (See Fig, 2. 3.)

L09 BT 3x6 <!> Pan

2.3 Adjustment After Replacement of Pickup

Upon completion of replacement of the Pickup, perform the following adjustments in the flow chart shown in Fig. 2.5.

START

Focus Servo Offset adjustment (TP(FOCUS), RVlOl) as per steps 3- 1 to 3-6.

E-F Balance Adjustment (TP(EF), RV104) as per steps 4-1 to 4-6.

No

Yes

END

Fig. 2.5

Fig, 2,4

2

4.

4.1.

3. MEASUREMENT INSTRUMENTS AND TEST DISCS

(1)Oscilloscope (15MHz or more)

(2)Frequency Counter (15MHz or more)

(3)Audio Signal Generator

(4)Distortion Meter

(5)Sony Test C.D. YEDS-18 Type 3 and 4

PARTS LOCATION FOR ADJUSTMENT

Parts on P.C.B. Ass'y

~~

RVl04 RVIOI

(;;YJ@GND

@L303

RVI05	~~
~	(FOCUS)
	Rl36	@(Vr:ST MODE)
	@)c:l>-	@+5V
	RV 103
	~~§
	RVI02

Main P.C.B.

Fig. 4.1

	~	~
	RVSOIR
	~	~ RV501L
		RV552L
	RV552R	~
	~
		RV551L
	RV551R

D/A Converter P.C.B.

Fig. 4.2

3

5.ADJUSTMENTS

5.1 Note

Pay attention to the following before adjustment.

(1)Keep the Compact Disc Player horizontal during adjustment.

(2)Before starting adjustment, allow three minutes after the power is turned ON. Offset voltage will stabilize in this period of time.

(3)Potentiometers that are not stated in the adjustment instructions should be left to their original positions.

5.2. Adjustment Instructions

(4)Keep the Pickup lens clean. Carefully clean it with lens cleaner or similar tools.

(5)The Tracking Servo Gain adjustment has been factory-aligned using the special filter and the field adjustment is seldom required.

Danger: Invisible laser radiation when opened and interlock failed or defeated. Avoid direct exposure to beam.

STEP

ITEM

SIGNAL

OUTPUT

ADJUSTMENT

REMARKS

SOURCE

CONNECTION

1

PLL Free-run

None

Frequency

Main

P.C.B.

1. Connect the frequency counter to TP(PLL).

Frequency

counter

L303

2. Connect TP(ASY) to GND.

Adjustment

to

TP(PLL)

3. Adjust L303 to obtain 4.3±0.lMHz on the

on Main

frequency counter.

P.C.B.

2

Tracking

None

Oscilloscope

Main

P.C.B.

1. Set

a

oscilloscope to DC input and 20mV/div.,

Offset

to

TP(TRACK)

RV102

and connect it to TP(TRACK).

Adjustment

on Main

2. Short the TEST MODE pins on Main P.C.B.

P.C.B.

3. Press the Repeat button.

4. Adjust

RV102 to obtain 0±10 mV on the scope,

3

Focus

Test

disc

Oscilloscope

Main

P.C.B.

1. Set

a

oscilloscope to DC input and connect it

servo

Sony

to

TP(FOCUS)

RV101

to TP(FOCUS).

offset

Type

4

on

Main P.C.B.

2. Press the Play button.

adjustment

3. Observe and record DC average voltage at

TP(FOCUS).

4. Press the Stop button.

s. Adjust RV101 to obtain same voltage in step 3

on the

scope.

6. Repeat

playback and stop a few times and check

that

the voltage does not change.

4

E-F Balance

Test

Disc

Oscilloscope

Main

P.C.B.

1. Set a oscilloscope to DC input and connect it

Adjustment

Sony

to

TP(EF)

on

RV104

to TP(EF).

Type

4

Main P.C.B.

2. Press the Play button.

3. Short the TEST MODE pins on Main P.C.B. after

pressing the Play button.

4. Press the Time button.

s. Adjust RV104 so that the signal has the

syrrunetrical plus swing and minus swing on the

scope.

6. Open the TEST MODE pins and check that playback

and track search operates normally.

5

Tracking

Test

Disc

Oscilloscope

Main

P.C.B.

1. Set

a

signal generator to 4 pins of u102.

Servo

Sony

to

TP (TRACK)

RV103

2. Apply lkHz, 300mV audio signal to TP(TRACK),

Gain

Type

4

through a

Output impedance should be 220k ohms.

lkHz BPF.

3. Turn RV103 slowly clockwise and top at the

Signal

point where tracking servo signal goes out. At

Generator

to

this point, assume that noise level

is 0

dB,

pin 4 of

U102

4. Adjust

RV103

to obtain a lkHz

signal

level o.t

on Main

P.C.B.

-6dB.

6

THD

Test

Disc

Distortion

D/A Converter

1. Play 10kHz(l00%) track and adjust RV552L/R to

Adjustment

Sony

meter and

P.C.B.

obtain minimum distortion.

Type

3

Oscilloscope

RV551L/R

2. Play

lkHz(l00%) track and adjust RV551L/R to

to OUTPUT

RV552L/R

obtain minimum distortion.

terminal

RV501L/R

3. Perform steps 2 and 3 again.

4. Play lkHz(-90dB) track and adjust RV501L/R to

obtain

equal

waveforms on

right

and

left

channel.

7

Remote

Remote

Oscilloscope

Remote P.C.B.

1. Connect a 470 or 510 ohm resistor in parallel

Control

Controller

to UKOl #2pin

CTKOl

to RK06.

Sensitivity

on Remote

2. Receive remote control signal and adjust CTICOl

Adjustment

P.C.B.

to obtain maximum output.

3. Remove

the resistor.

4

6. MECHANISM ASS'Y AND PARTS LIST

16

6.1 Synthesis

Fig. 6.1

<0--08

Schematic

Part No.

Description

Q'ty

Schematic

Part No.

Description

Q'ty

Ref.

No.

Ref.

No.

01

CA80469A

Front Panel Ass'y (OMS-7II)

l

lS

OC80718A

Eject Button Base

1

CA804669

Front Panel Ass'y (OMS-7AII)

l

16

OC80719A

Top Cover

1

CA80467A

Front Panel Ass'y (OMS-7EII)

l

17

OC80720A

Vibration Isolation Sheet A (USA)

1

CA80468A

Front Panel Ass'y (OMS-70II)

1

OC81089A

Vibration Isolation Sheet

A

1

02

CA80470A

Chassis Ass'y (OMS-7AII)

l

(Except

USA)

CA80471A

Chassis Ass'y (OMS-7EII)

1

18

OC81966A

Sponge

2

CA80472A

Chassis Ass'y (OMS-70II)

l

19

OC81967A

Bottom Cover

1

CA80473A

Chassis Ass'y (OMS-7II Others)

1

20

OC80722A

Leg

4

CA80474A

Chassis Ass'y (OMS-7II Canada)

1

21

OC81063A

Vibration Isolating Sheet B (USA)

1

CA80475A

Chassis Ass'y (OMS-7II Australia)

1

OC81062A

Vibration Isolating Sheet

B

1

03

OC80714A

Volume

Knob

1

(Except

USA)

04

OC80713A

Volume

Knob Cap

l

22

OC81969A

Vibration Isolating Sheet

c

2

OS

OC80712A

Indicator Lens

l

(Except

USA)

06

OC82175A

Shipping Bracket

l

OC81968A

Vibration Isolating Sheet c (USA)

2

07

OC82240A

Cord Clamper

1

LOl

OE00921A

BT

3x8

+ Binding

6

08

OM04377A

Caution Label

1

L02

OC82236A

BT 2x6 + Binding (Black Chromate)

4

09

CA80478A

Fuse P.C.B. Ass'y(OMS-7EII)

l

L03

OE00970A

BT

3x4

+ Binding

8

10

CA80479A

Fuse P.C.B. Ass'y(except OMS-7EII)

l

L04

OC81064A

M

4x8

+ Pan Washer-faced

4

CA80476A

Eject/Load P.C.B. Ass'y

1

(Black Chromate)

11

OC80716A

Disc Tray Lid

1

LOS

OC82239A

Shipping Screw (Red)

1

12

OC80717A

Lid Frame

1

LOG

OC81033A

BT 3x8

+ Round

2

13

QC82153A

Sheet

1

L07

OC82237A

BT 3x8 + Binding (Black Chromate)

2

14

OC80715A

Eject Button

1

LOS

OC82238A

BT

3x10

+ Binding

4

5

6.2 Front Panel Ass'y

01

Fig. 6.2

Description

:ront

Panel

Ass'

Front Panel Ass'y (OMS-7II)

Front Panel Ass'y (OMS-7AII)

ront

Panel Ass'Y (OMS-7EII)

Y (OMS-70II)

01

OC82019A

Front Panel

(

OC82016A

Front Panel

OMS-7II)

1

Front Panel

(OMS-7AII)

OC82017A

1

Front Panel (OMS-7EII)

OC82018A

l

02

Front

(OMS-70II)

OC80724A

Escutch

1

03

OC82085A

Power B t

eon L

1

P

utonCa

04

OC82081A

ow7r Button

p

1

05

OC80723A

Spring

1

06

OC81370A

Front

Es

cutcheon

R

1

07

Pla

OC81363A

y Button

1

08

OC81364A

Stop Button

1

09

OC81365A

;ause.Button

1

10

OC81366A

R•

Sk7p Button

1

11

OC81367A

F•

Skip Button

1

12

OC81368A

.Fwd Button

1

13

OC81369A

Rev

Button

1

14

OC81031A

Play Indicator

1

15

OC81030A

Pause

Ina··

1

16

Ind.

icator

OC82162A

icator Sh

1

17

OC80725A

Sponge A

eet

1

18

OC80726A

Push Switch

A

10

19

0C80705A

Push Switch Button

LED Hold

Button B

6

20

OC82051A

L

er A

l

21

OC82052A

ED Holder B

1

22

OC80706A

FL Filter

1

23

OC81433A

Sponge C

1

24

OC81432A

Sponge B

1

25

oc82163A

Cable

Protecto

1

26

CA80480A

Control Switchr

Ass'y

1

27

CA80492A

Remote

Cont

P.C.B.

Ass'y

1

BT

2.6x6 + ~ol P.C.B.

LOl

OE00792A

an

8

6

6.3 Chassis Ass'y

28

L03	L01		16

18~-·~

L10~~~-

15

L10

L10 --- i

!---LOS

Fig.

6.3

Schematic

Part No.

Description

Q'ty

Schematic

Part No.

Description

Q'ty

Ref.

No.

Ref. No.

CA80470A

Chassis Ass'y (OMS-7AII)

1

23

OC81210A

Power Cord (OMS-7EII)

1

CA80471A

Chassis Ass'y (OMS-7EII)

1

OC81208A

Power Cord (OMS-70II)

1

CA80472A

Chassis Ass'y (OMS-70II)

1

24

OC81211A

Power Cord (OMS-7II Australia)

1

CA80473A

Chassis Ass'y (OMS-7II others)

1

OB08037U

Cord Bushing

1

CA80474A

Chassis Ass'y (OMS-7II Canada)

1

25

CA80485A

Main P.C.B. Ass'y

1

CA80475A

Chassis Ass'y (OMS-7II Australia)

1

26

CA80486A

D/A Converter P.C.B. Ass'y

l

01

27

CA80494A

Power Trans. P.C.B. Ass'y

l

OCB0694A

Power

Switch Bracket

l

(OMS-7AII & OMS-7II Canada)

02

OC80693A

Joint Bar

1

CAB0495A

Power Trans. P.C.B. Ass'y (OMS-7EII)

l

03

OCB0695A

Power

Switch Insulator

l

CA80496A

Power Trans. P.C.B. Ass'y (OMS-70II)

l

04

OC80696A

Power

Switch Sponge A

l

OC80505A

Power Trans. P.C.B. Ass'y(OMS-7II)

l

05

OC80697A

Power

Switch Sponge B

l

CA80497A

Power Trans. P.C.B. Ass'y

l

06

OCB0692A

Volume

Insulator

1

(OMS-7II Australia)

07

CA80445A

Disc Mechanism Ass'y

l

2B

CA80498A

Voltage Selector P.C.B. Ass'y

l

08

OCB06B9A

FL Filter B

l

(OMS-7II Others)

09

OC807lOA

DIN Jack Plate

l

29

CA80491A

Power Switch P.C.B. Ass'y (OMS-7EII)

l

10

OC82151A

Damper

l

CAB0478A

.P<>!"'r Switch P.C.B. Ass'y

l

11

OCB2152A

U-shape Bracket

l

(Except OMS-7E.II)

12

OCB1953A

Front Chassis

l

30

CA80490A

FL Indicator P.C.B. Ass'y

l

13

OC8],954A

Centf!!r

c;:hassis

l

31

CA804BBA

Headphone Amp. P.c.B. Ass'y

l

14

OC81955A

Side Chassis L

l

32

CAB0489A

Volume P.C.B. Ass'y

l

15

OCB1956A

Side Chassis R

1

33

CA80493A

Wired Remote Control P.C.B. Ass'y

l

16

CA81957A

Rear Panel (OMS-7AII)

l

LOl

OC81033A

BT 3x8 + Round

11

CA819S8A

Rear Panel (OMS-7EII)

l

L02

OEOOB68A

BT 3x8 + Binding

8

CA81959A

Rear Panel (OMS-70II)

l

L03

OE03369A

BT

3x4 + Binding

4

17

CAB1960A

Rear Panel (OMS-7II)

l

L04

OCB095BA

M

3xB + Binding (Black chromate)

4

OCB1961A

Power Transformer Bracket

1

LOS

OCB1091A

BT 3xB + Binding (Black Chromate)

2

lB

OCB0690A

Headphone Jack Bracket

l

L06

OEOOB96A

BT 3x6 + Binding

l

19

OC81962A

Power Transformer Spacer·

l

L07

OEOOB24A

BT 2.6x6 + Pan

1

20

OCB1963A

Shield Cover

1

LOB

OEOOB68A

BT 3xB + Countersunk

6

21

OCB1964A

Power Transformer Sheet

1

L09

OCB1032A

M

3xB + Nailtap Screw (Black)

10

22

OCB1965A

Shaft

1

LlO

OCB1033A

BT 3xB + Binding

5

23

OCB1209A

Power Cord (OMS-7AII, OMS-7II Canada

1

Lll

OC82143A

BT 4x6 + Binding

2

& Others)

7

6.4 Disc. Mechanism Ass•y

Fig. 6.4

8

Schematic

Schematic

Part No.

Description

Q'ty

Part No.

Description

Q'ty

Ref. No.

Ref.

No.

CA80445A

Disc Mechanism Ass'y

1

57

OC81006A

Sheet

1

58

OC80984A

Spacer

2

01

OC81016A

Collar

4

59

OC81002A

Guide Sheet

6

02

OC81022A

Damper B

4

60

OC82009A

Roller Guide

2

03

OC81970A

Mechanism Spring

4

61

OC81000A

Roller

8

04

OC80773A

Mechanism Bracket L

2

62

OC81001A

Gear M

1

05

OC80774A

Mechanism Bracket R

2

63

OCB1972A

Bracket Spacer

2

06

OC81971A

Chuck Arm

1

64

OC81171A

Wire Clamper

1

07

OC81991A

Chuck Cover

1

65

OC81973A

Guide Rail R

1

08

OC81992A

Chuck

1

66

OC81974A

Guide Rail L

1

09

C081993A

Chuck Support

1

67

OC81975A

Guide Rail

Sheet

2

10

CA80453A

Arm Bracket Ass'y

l

68

OC81976A

Disc Tray

Spacer

2

11

OC80945A

Collar A

l

69

OC81977A

2P Connector Cord

l

12

OC80946A

Collar B

l

70

CA80499A

Open End Switch P.C.B. Ass'y

l

13

OC80947A

Collar C

l

71

CA80500A

Close End Switch P.C.B. Ass'y

l

14

OC81997A

Arm Shaft A

1

72

CA80503A

Photo Diode P.C.B. Ass'y

l

15

OC81998A

Timing Arm Spring

1

73

OC81058A

Flexible P.C.B.

l

16

OC81999A

Chuck Arm Spring

1

74

OC81978A

Loading Motor

1

17

CA80276A

Timing Arm Ass 1 y

1

LOl

OC81014A

M

3x16 + Pan

4

18

OC82000A

Magnet

1

L02

OE00042A

E-Ring 1.5mm

4

19

OC82001A

Damper Tube

1

L03

OE00698A

E-Ring 2.5mm

1

20

OC82002A

Chuck Damper

1

L04

OE00222A

E-Ring 2mm

3

21

OC82003A

Sponge

1

LOS

OC81015A

Washer 3x10x0.8 (Nickel)

2

22

OC82004A

Box

1

L06

OE00965A

BT 3x6 + Binding (Nickel)

3

23

OC82005A

Table

1

L07

OC82156A

BT 3x6 + Pan (Nickel)

8

24

OC82006A

Rack A

1

LOB

OE00964A

M

3x5 + Binding

2

25

OC81009A

Rack B

l

L09

OC80952A

Stopper Ring 3tmn (CS)

1

26

OC80981A

Box Rail R

1

LlO

OE00955A

BT 2x4 + Binding

2

27

OC80982A

Box Rail L

1

Lll

OC80957A

M

3x6 + Binding

8

28

OC80986A

Guide Screw A

2

L12

OC80962A

M

2.6x6 + Pan

4

29

OC80985A

Guide Screw B

2

Ll3

OC80967A

Washer 2.6x5.3x0.6

1

30

OC80970A

Table Roller

4

Ll4

OC80957A

M

3x6 + Binding

1

31

OC82007A

Lock Arm

1

Ll5

OCS0965A

BT 2.6x6 + Pan (Black Chromate)

6

32

OC81007A

Lock Arm Spring

1

Ll6

OC80961A

M

2. 6x4 + Countersunk

6

33

OC80971A

Switch Plate

1

(Black Chromate)

1

34

OC80976A

Rack Arm Plate

2

Ll7

OC8095SA

M

2.3x8 + Binding

35

OC81149A

Cord Cover

1

L18

OE00124A

M

2x4 + Pan

2

36

OC80999A

Cushion

l

L19

OC80963A

M

2xl.8 + Pan (Black Chromate)

2

37

CA80354A

Rack Arm Ass'y

l

L20

OC80953A

Plastic Rivet 3x4.5 (Black)

2

38

CA80446A

Box Guide Ass'y

l

L21

OC80960A

M

2.6x3 + Pan (Black Chromate)

l

39

CA80504A

Gear Bracket Ass'y

1

L22

OCS0958A

M

3x8 + Binding (Black Chromate)

4

40

OC81153A

Gear B

l

L23

OC80954A

Plastic Rivet 3x5.5 (Black)

2

41

OC81154A

Gear c

l

L24

OC80964A

BT 2x6 + Pan (Black Chromate)

2

42

OC81155A

Gear D

l

L25

OC80966A

Washer 2x6x4

2

43

OC81156A

Gear Cover

l

L26

OCS0955A

M

2.3xB Binding

2

44

OC80969A

Rear Bracket

1

L28

OC81018A

Washer 7x0.6

4

45

OC82008A

Actuator

l

L29

OC81017A

Shipping Screw

2

46

OC81160A

Stopper

1

47

OC80992A

Front Bracket L

l

48

OC80983A

Guide Screw C

1

49

CA80281A

Front-Right Bracket Ass'y

l

50

CA80282A

Rear-Left Bracket Ass'y

l

51

OC80993A

Front Bracket R

l

52

OC81005A

Damper A

l

53

OC82155A

Damper Shaft

5

54

OCS0972A

Spring

l

55

OC80991A

wire Clamper

2

56

OC81164A

Bushing

2

9

6.5 Disc Mechanism Sub Ass•y

L10

01

l ----	L07
l----	Lo5

~21

20

/

~" 22 23

& LOB

OB

I

! --- L02

Fig.

6.5

Schematic

Part No.

Description

Q'ty

Schematic

Part No.

Description

Q'ty

Ref.

No.

Ref. No.

01

OC81981A

Mechanism Chassis

l

22

OC82256A

SP

Connector Cord

l

02

OC80794A

Sheet

l

23

OC82257A

9P

Connector Cord

l

03

OC81982A

Pickup Shaft

2

24

CA80501A

Inner End Switch P.C.B. Ass'y

1

04

CA80261A

Gear Base Ass'y

1

25

CA80502A

Photo

Transistor P.C.B. Ass•y

1

05

OC80790A

Gear A

1

26

OC81979A

Disc Motor

1

06

OC80788A

Gear B

l

27

OC81980A

Feed Motor

1

07

OC80789A

Gear c

1

LOl

OE00804A

M

2x4

+ Binding (Black Chromate)

l

08

OC80797A

Rack Gear

l

L02

OE00973A

M

2x6

+ Binding

1

09

OC80792A

Belt Guide

1

L03

OE00869A

BT

2.6x4 + Binding

2

10

OC80777A

Pulley Support

l

L04

OC82229A

BT

2.6x6 + Binding (Nickel)

1

11

OC80793A

Belt

l

LOS

OE00965A

BT 3x6

+ Binding (Nickel)

4

12

OC80782A

Rack

Spring

1

L06

OC82230A

BT 2.6xl0 + Pan (Nickel)

2

13

OC80785A

Spring A

l

LO?

OC82231A

Washer

3mm (3xl2x5)

1

14

OC80770A

Motor Bracket

l

LOS

OE00121A

M

2.6x6 + Pan

2

15

OC81983A

Rack Support

l

L09

OC82234A

BT

3x6

+ Pan (Nickel)

4

16

OC81984A

Ring Set Screw

1

LlO

OC82235A

BT

2x6

+ Pan

2

17

OC81985A

Ring

Spring

l

Lll

OC82232A

Washer

(Plastics)

l

18

OC81986A

Disc Table

l

Ll2

OE00222A

E-Ring

2mm

l

19

OC81987A

Slide

Ring

l

Ll3

OC82233A

Washer

(Plastics)

l

20

OC81988A

Laser

Pickup

l

Ll4

OE00042A

E-Ring

l.Smm

l

21

OC81989A

Damper Plate

l

10