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4-4

(For printed wiring boards)
• X : indicates a lead wire mounted on the component side.
• x : indicates a lead wire mounted on the printed side.
• a : Through hole.
• b : Pattern from the side which enables seeing.

    (The other layers' patterns are not indicated.)

When indicating parts by reference number, please include
the board name.

Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B)

the pattern face are indicated.

Parts face side:

Parts on the parts face side seen from

(Side A)

the parts face are indicated.

(For schematic diagrams)
• All capacitors are in 

µF unless otherwise noted. pF : µµF.

50V or less are not indicated except for electrolytics and
tantalums.

• All resistors are in ohms, 1/4 W (Chip resistors : 1 /10 W) un-less

otherwise specified.
k

Ω=1000Ω, MΩ=1000kΩ.

• Caution when replacing chip parts.

New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum capacitor, be-
cause it is damaged by the heat.

• All variable and adjustable resistors have characteristic curve B,

unless otherwise noted.

• 2 : non flammable resistor
• 5 : fusible resistor
• C : panel designation
•     f

: internal component.

• C : adjustment for repair.
• U : B+ Line
• V : B– Line
• Circled numbers refer to waveforms.
• Voltages are dc between measurement point.
• Readings are taken with a color-bar signals on DVD refer-ence

disc and when playing CD reference disc.

• Readings are taken with a digital multimeter (DC 10MW).
• Voltage variations may be noted due to normal production toler-

ances.

•

Abbreviation
BR

: Brazilian model

E:HK ; Hong Kong model
E:TW ; Taiwan model
E:SP ; Singapore model

; Malaysia model
; Thailand model
; Philippine model
; Indonesia model
; Vietnum model

The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.

4-3

60.6nsec

29.5nsec

37.4nsec

BOARD

2

 IC103 qd,qg

1

 IC104 tf

5.0Vp-p

1.6Vp-p

3

 IC103 3,8

4.2Vp-p

4

 IC103 9,q;

40.8nsec

5.0Vp-p

5

 IC102 ed PAL

H

H

5

 IC102 ed NTSC

H

H

H

H

H

BOARD

1

 IC102 w; PAL

1

 IC102 w; NTSC

1.4Vp-p

1.0Vp-p

1.9Vp-p

1.4Vp-p

2

 IC102 ws NTSC

1.0Vp-p

2

 IC102 ws PAL

H

1.4Vp-p

3

 IC102 wf,wl NTSC

H

1.9Vp-p

4

 IC102 ea NTSC

3

 IC102 wf,wl PAL

H

1.9Vp-p

4

 IC102 ea PAL

1.9Vp-p

2.5Vp-p

NTSC:75% COLOR BAR PLAY BACK
PAL :100% COLOR BAR PLAY BACK

125nsec

BOARD

1

 IC404 3

3.8Vp-p

8.6

µsec

4.4

µsec

2

 ND401 1,ys

14.4Vp-p

3

 T401 3

21.7Vp-p

4-5

4-6

16

M001

5P

CN001

1

2

3

4

5

S001

1

2

3

4

5

JL001

JL002

JL003

JL004

JL005

1

A

LDM+

LDM-

OCSW1

CKSW1

GND

MB-103 BOARD (2/7)

CN201

(SEE PAGE 4-13)

LOADING

MOTOR

DETECT

CHUCK/TRAY

2

4

5

16

B

MS-81 BOARD

3

C

LOADING

- REF.NO.:1000 SERIES-

There are a few cases that the part printed
on this diagram isn’t mounted in this model.

POWER BLOCK
(SWITCHING REGULATOR)

IF-092
(INTERFACE CONTROL)

MS-081
(LOADING)

MC-139
(MIC AMP)

MB-103
(SIGNAL PROCESS, SERVO) 

AV-063
(AUDIO/VIDEO OUT)

4-8

There are a few cases that the part printed
on this diagram isn’t mounted in this model.

•

  : Uses unleaded solder.

POWER BLOCK
(SWITCHING REGULATOR)

IF-092
(INTERFACE CONTROL)

MS-081
(LOADING)

MC-139
(MIC AMP)

MB-103
(SIGNAL PROCESS, SERVO) 

AV-063
(AUDIO/VIDEO OUT)

1

CN101

A-5

CN102

B-1

CN103

A-8

CN201

A-3

CN202

E-2

CN203

F-1

CN204

D-1

CN301

B-6

CN601

H-6

IC102

E-6

IC104

C-9

IC301

B-5

IC302

D-4

IC402

H-9

IC403

F-8

IC501

E-3

IC502

F-4

IC601

G-6

RV401

H-8

RV501

F-6

RV502

G-5

4-9

•

  : Uses unleaded solder.

2

3

4

D201

F-1

D202

G-1

IC101

A-8

IC103

D-6

IC106

C-9

IC107

C-9

IC108

C-7

IC201

E-3

IC202

C-2

IC303

C-5

IC401

D-7

IC404

F-7

IC405

F-9

IC406

F-8

IC503

G-3

IC504

F-5

IC505

H-4

Q201

F-2

Q202

G-2