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MULTI COMPACT DISC PLAYER

DISC

TRACK

MIN

SEC

'
STANDBY/ON

RANDOM

HI--LITE

6

-DISC
MULTI CD

EJECT

REPEAT PROGRAM

DISC

TRACK/MANUAL

STOP

PLAY/PAUSE

0

41

¡¢

7
1-BIT¥DLC

6

ORDER NO.

DIRECT LINEAR CONVERSION

RRV2122

MULTI COMPACT DISC PLAYER

PD-M427
PD-M407
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type PD-M427
WPWXJ RDXJ

Power Requirement PD-M407

The voltage can be converted by the following method.
­­­­­­­ With the voltage selector





AC220­240V AC110­127V/220­240V

CONTENTS
1. SAFETY INFORMATION .................................... 2 2. EXPLODED VIEWS AND PARTS LIST ............. 4 3. SCHEMATIC DIAGRAM ................................... 10 4. PCB CONNECTION DIAGRAM ....................... 14 5. PCB PARTS LIST ............................................. 18 6. ADJUSTMENT .................................................. 21 PIONEER ELECTRONIC CORPORATION 7. GENERAL INFORMATION .............................. 29 7.1 DISPLAY .................................................... 29 7.2 BLOCK DIAGRAM ...................................... 30 8. PANEL FACILITIES AND SPECIFICATIONS ................................................................... 31

4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER ELECTRONIC CORPORATION 1999

T­ZZR APR. 1999 Printed in Japan

PD-M427, PD-M407

1. SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

IMPORTANT THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1. SERVICING OPERATION OF THE APPARATUS SHOULD BE DONE BY A SPECIALLY INSTRUCTED PERSON.

LASER DIODE CHARACTERISTICS MAXIMUM OUTPUT POWER: 5 mw WAVELENGTH: 780 ­ 785 nm

LABEL CHECK

Additional Laser Caution
1. Laser Interlock Mechanism The ON/OFF (ON: low level, OFF: high level) status of S601 (LPS1) and S602 (LPS2) switches for detecting the loading state is detected by the system microprocessor, and the design prevents laser diode oscillation except when both switches S601 and S602 are ON (low level or clamped state). Thus, interlock will no longer function if switches S601 (LPS1) and S602 (LPS2) are deliberatery shorted (low level). The interlock also does not function in the test mode. Laser diode oscillation will continue, if pin 33 of CXA1782CQ (IC151) on the MOTHER BOARD ASSY is connected to GND, or pin 50 of IC351 (LDON) is connected to low level (ON), or else the terminals of Q151 are shorted to each other (fault condition).

AR RE

WPWXJ type Only

2. When the cover is opened with the servo mechanism block removed to be turned over, close viewing of the objective lens with the naked eye will cause exposure to a Class 1 laser beam.

Refer to page 22.

2

PD-M427, PD-M407

3

PD-M427, PD-407

2. EXPLODED VIEWS AND PARTS LIST
NOTES : ÷ Parts marked by " NSP " are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. ÷ The Therefore, when replacing, be sure to use parts of identical designation. ÷ Screw adjacent to mark on the product are used for disassembly.

2.1 PACKING

1

2 12 7 6

3 4 11

10

RE

AR

8

5

9

4

PD-M427, PD-M407

(1) PACKING PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10

Description
Control Cable (for SR) (L=1 m) Output Cable (L=1 m) (for AUDIO) Remote Control Unit (CU-PD104) Battery Cover 6-Compact Disc Magazine Operating Instructions Styrol Protector (F) Styrol Protector (R) CD Packing Case Mirror Mat Sheet (750X600X0.5) Dry Cell Battery (AAA/R03) Caution 220V Label

Parts No.
See Contrast table (2)

PDE1248
See Contrast table (2) See Contrast table (2)

PXA1617
See Contrast table (2)

PHA1276 PHA1277
See Contrast table (2)

Z23­007

NSP

11 12

See Contrast table (2) See Contrast table (2)

(2) CONTRAST TABLE
PD-M427/WPWXJ, RDXJ, PD-M407/WPWXJ and RDXJ are constructed the same except for the following:
Part No. Mark No.
1 3 4 6 6

Symbol and Description
Control Cable (for SR) (L=1 m) Remote Control Unit (CU-PD104) Battery Cover Operating Instructions (English) Operating Instructions (English/Spanish/Chinese) CD Packing Case Dry Cell Battery (AAA/R03) Caution 220V Label

PD-M427 WPWXJ RDXJ
Not used PWW1149 PZN1010 PRB1288 Not used PDE1247 PWW1149 PZN1010 Not used PRE1281

PD-M407 WPWXJ RDXJ
PDE1247 Not used Not used PRB1288 Not used PDE1247 Not used Not used Not used PRE1281

Remarks

NSP

9 11 12

PHG2373 VEM-022 Not used

PHG2373 VEM-022 ARR1003

PHG2371 Not used Not used

PHG2371 Not used ARR1003

5

PD-M427, PD-407 2.2 EXTERIOR
24 22

5

21 (Refer to "2.3 MULTI MECHANISM ASSY".) 28 24 7 17 25 7 21 7 20 34 27 22 32 F 29 4 1 25 17 22 WPWXJ type only 21

34

3

23 30 12 9 31 16 22 23 18 F 14 6 2 33 6 26

11 22 8 19 10 15 8 22

6

PD-M427, PD-M407

(1) EXTERIOR PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Description
Strain Relief F.F.C/30V Power Transformer AC Power Cord Bonnet Foot Assy Screw Rubber Sheet Function Panel Play Button Name Plate Power Button ..................... Track Button Display Window Spring (Door) Earth Lead Unit Door FUNCTION BOARD Assy MOTHER BOARD Assy

Parts No.
CM­22B
See Contrast table (2) See Contrast table (2) See Contrast table (2)

Mark No.
21 22 23 24 25 NSP NSP NSP 26 27 28 29 30 31 32 33 34

Description
Screw Screw Screw Screw Screw Under Base Rear Base Multi Mechanism Assy Flat Cable (6P) SW BOARD Assy LED Lens Caution Label Locking Card Spacer Binder

Parts No.
BBZ30P060FMC BBZ30P080FZK PPZ30P120FMC FBT40P080FZK PDZ30P050FMC PNA1751
See Contrast table (2)

PYY1149 AEC1531 IBZ30P080FCC AEB1111
See Contrast table (2)

PAC1766 PAM1776 PAC1719

PXA1592 D20PYY0615E PWZ2805 PNW2019
See Contrast table (2)

NSP PAC1765
See Contrast table (2)

PEC1036 ZCA-SKB90BK

NSP

PBH1022 DE007VF0 PNW2598
See Contrast table (2) See Contrast table (2)

(2) CONTRAST TABLE
PD-M427/WPWXJ, RDXJ, PD-M407/WPWXJ and RDXJ are constructed the same except for the following:
Part No. Mark No.
2 2 3 4 9 15 19 20 27 32

Symbol and Description
32P F · F · C/30V 30P F · F · C/30V Power Transformer AC Power Cord Function Panel Display Window FUNCTION BOARD ASSY MOTHER BOARD ASSY Rear Base Caution Label

PD-M427 WPWXJ RDXJ
PDD1041 Not used PTT1236 ADG1123 PNW2913 PAM1798 PWZ2769 PWM2156 PNA2501 PRW1018 PDD1041 Not used PTT1238 PDG1013 PNW2913 PAM1798 PWZ2769 PNW2155 PNA2500 Not used

PD-M407 WPWXJ RDXJ
Not used PDD1049 PTT1236 ADG1123 PNW2912 PAM1797 PWZ2768 PNW2153 PNA2499 PRW1018 Not used PDD1049 PTT1238 PDG1013 PNW2912 PAM1797 PWZ2768 PNW2152 PNA2498 Not used

Remarks

7

PD-M427, PD-407 2.3 MULTI MECHANISM ASSY
38 63 75 38 26 25 59 1 39 2 17 40 4 40 7 40 5 21 19 20 41 43 35 61 13 14 15 60 10 64 67 38 12 36 8 11 38 66 38 38 6 33 45 7 44 38 37 5 40 31 32 47 46 47 77 47 46 47 28 59 1 9 27 76 30 29 16 38 42 39 17 9 37 82 84
Red Mark

70

62 24 22 24 23 71 52 55

1 Label
Fix the motor (No. 59) on the gear holder (No. 2) so that the label attached on the motor faces the direction illustrated.

79
Red Mark

87 78 57 54 49 51

18

24 23 24 22 56 85 73 72 53 74 50 80 68 83 69 83 3 48 58

86

2 Label

*2: Fix the motor (No. 59) on the top guide N (No. 6) so that the label attached on the motor faces the direction illustrated.
65 34

8

PD-M427, PD-M407

MULTI MECHANISM ASSY PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

Description
Motor Pulley Gear Holder PU PWB (POLYIMDE) Cam Gear Belt Top Guide N Gear Pulley Gear S Gear L Eject Spring SW Lever Seven Bar Sub Revolving Lever Sub Revolving Lever Spring Revolving Lever Drive Plate Motor Screw Holder Lever Spring Disc Holder Cushion A Holder Lever Float Rubber Float Rubber Float Screw Release Lever Release Spring Clamper Cam Clamper Holder Centering Spring Clamper Lock Lever Lock Spring Stair NL Stair NR Synchronize Lever Motor Assy (LOADING, DISC SELECT) Screw Screw Screw Washer Washer E Ring Screw Spacer (Rubber) Spacer (Rubber) Silent Ring Washer Rack Spring Guide Bar Disc Table Gear 1 Gear 2 Gear 3 Pinion Gear FFC Holder M

Parts No.
PNW1634 PNW1929 PNP1442 PNW1923 PEB1138 PNW2441 PNW1918 PNW1919 PNW1920 PBH1107 PNW1927 PNW1931 PNW1933 PBH1111 PNW1932 PNW1930 PBA­112 PBH1110 PNW1924 PED1001 PNW1925 PEB1014 PEB1132 PBA1073 PNW1934 PBH1106 PNW1922 PNW1921 PBH1109 PNW2774 PNW1917 PBH1108 PNW2443 PNW2444 PNW1926 PEA1130 PMZ26P040FMC PPZ30P080FMC BBZ30P060FMC WT26D047D025 WA31D054D025 Z39­010 IPZ30P080FMC PEB1238 PEB1179 PBK1093 WA62D130D025 PBH1128 PLA1094 PNW1067 PNW2052 PNW2053 PNW2054 PNW2055 PNW2746

Mark No.
56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87

Description
Carriage Base D.C. Motor Assy (Spindle with oil) Pickup Assy Carriage Motor Eject Lever Upper Chassis Servo Mechanism Assy M LOADING BOARD Assy Sub Chassis N Main Chassis SELECT BOARD Assy MOTOR BOARD Assy Disc Table Assy Screw Screw Screw Screw Screw Washer Connector Assy Stopper Spring Stopper D.C. Motor Assy (CARRIAGE) MECHANISM BOARD Assy Clamp Magnet ..................... Connector Assy Earth Lead Unit Gear Stopper Yoke M Rack Holder Carriage DC Motor

Parts No.
PNW2699 PEA1235 PEA1335 VXM1033 PNB1306 PNB1267 PXA1595 PWZ2038 PNW2440 PNW2074 PWZ2533 PWZ2040 PEA1035 BBZ26P060FMC BPZ20P060FMC BPZ26P100FMC JFZ17P025FZK JFZ20P040FMC WT12D032D025 PDE1241 PBH1131 PNW2069 PEA1246 PWX1192 PMF1014

NSP NSP

NSP NSP

NSP

NSP

PDE1240 PDF1118 PNB1303 PNB1312 PNW2056 PXM1027

¶ How to Install the Disc Table

1 Use nipper or other tool to cut the three sections marked 2 While supporting the spindle motor shaft with the
stopper, put spacer on top of the yoke M, and stick the disc table on top (takes about 9kg pressure). Detach the spacer.

A in figure 1. Then remove the spacer

1
A

FFC Holder M

2
Spacer

(Pressure of about 9 kg) Disc Table
6.9mm

A
Spacer

Yoke M Spacer Setting Position Carriage Base Spindle Motor

0.9mm ±0.05mm 1.2mm

Stopper

9

1

2

3

4

PD-M427, PD-M407

3. SCHEMATIC DIAGRAM
PICK UP ASSY PEA1335

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
MOTHER BOARD ASSY 2 23 PWM2156:PD-M427/WPWXJ PWM2155:PD-M427/RDXJ PWM2153:PD-M407/WPWXJ PWM2152:PD-M407/RDXJ

A
1.8V -0.7V

3 4

A

33 7
1.8V

1.6V

5
0V 1.6V

53

SERVO MECHANISM ASSY M (PXA1595)

1.6V

6 18
0V
CN610

1.6V 5.0V

B

SPINDLE MOTOR ASSY PEA1235 CARRIAGE MOTOR ASSY PEA1246

1.7V

KU,KC,RD

8
0.2V 1.7V

G

MECHANISM BOARD ASSY (PWX1192)

CN601 4-173979-4 S601,S602:DSG1016

0V

MULTI MECHANISM ASSY (PXA1592)

B
CLAMP LOADING HOME EJECT MAGAZINE OUT MULTI IN SINGLE 2-6DISC HOME SELECTING

VXM1033
4-173981-4

0V 0V

LOADING BOARD ASSY (PWZ2038)
LPS1 L L H H MZS1 H L L DCNT L L H LPS2 L H H L MZS2 H L

C301

19

16

0V
DSDW DSUP

3.4V

0V
R365 10K R362 10K R363 10K R364 10K

S603:PSG1010

CN602

D

52151-0610

DCNM H L H

5.0V

MOTOR BOARD ASSY

23
MZS1 MZS2 DCH M

C

C

DCNT DSEL S604-S606:DSG1016

D20PYY0615E

(PWZ2040)

CN204

SELECT BOARD ASSY (PWZ2533)

VXM1033
DISC SELECT 52147-0610

PD-M427 PD-M407

J701 PDD1041 PDD1049

CN351 HLEM32S-1 HLEM30S-1

SW BOARD ASSY PWZ2805:WPWXJ and RDXJ TYPES

SIGNAL ROUTE : AUDIO SIGNAL : AUDIO SIGNAL(WY,WPW) : AUDIO SIGNAL(KU,KC,RD) : FOCUS SERVO LOOP : TRACKING SERVO LOOP : CARRIAGE SERVO LOOP : SPINDLE DRIVE : LOADING DRIVE

4

D

Holder

PNB1285

S801

FUNCTION BOARD ASSY ( PWZ2769 : PD-M427/WPWXJ, RDXJ ) ( PWZ2768 : PD-M407/WPWXJ, RDXJ )

PD-M427/ WPWXJ , RDXJ ONLY

D801

10

A B C D E F G
1 2

3

4

5

6

7

8

PD-M427, PD-M407
IC351(PD4836A) PLAY:1DISC PLAY. 2 5 PIN No. 3 6 9 10 11 12 4 7 8 1 Volta- PLAY 5.0 -23.2 -23.2 -23.2 -23.2 -23.2 -23.2 -23.2 -23.2 -23.2 -23.2 ge(V) STOP 5.0 -23.8 -23.7 -23.7 -23.8 -23.8 -23.8 -23.8 -23.8 -23.8 -23.8 13 14 15 16 17 18 19 20 4.9 -0.1 -16.8 -17.0 -25.9 -5.2 -22.2 -0.1 -16.7 -16.7 -26.4 -5.2 -23.0 0.2

PIN No. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Volta- PLAY -22.5 -19.8 -13.5 -0.4 -0.43 4.9 -19.0 -20.0 -13.5 -13.3 4.9 4.8 4.0 0.9 4.9 4.0 0.0 0.0 0.0 0.0 ge(V) STOP -22.9 -23.2 -10.5 -0.37 -0.44 4.9 -22.8 -26.4 -10.5 -10.4 4.8 4.9 2.5 2.9 4.9 2.3 0.0 0.0 0.0 0.0 PIN No. 41 42 43 44 45 46 47 48 49 50 Volta- PLAY 0.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0 5.0 4.9 ge(V) STOP 0.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0 0.0 0.0 51 52 53 54 55 56 57 58 59 4.9 4.9 4.9 4.9 2.3 2.2 0.1 0.1 4.9 4.9 4.9 4.9 2.3 2.2 0.1 0.1 60 61 62 63 64 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1

A

PD-M427/RDXJ and PD-M407/RDXJ TYPES
( WPWXJ:0.01)

PD-M427/WPWXJ, PD-M407/WPWXJ ONLY

: (16.9344MHz)

0V 1.6V 1.6V 0V
22/25

NJM4558D-D

-9.2V

B

10

0V

1SS254

1.6V

NJM4558D-D

-9.2V

0V

10
( WPWXJ:0.01)

22/25

0V

1.6V

PD-M427, PD-M407/ RDXJ

B

WPWXJ

RDXJ

39P

MZSI MZS2 DCHM LPS2 DCNT LPS1 DSUP DSDW

PD-M427/RDXJ, PD-M407/WPWXJ and PD-M407/RDXJ TYPES

C
MTZJ5.1

PD-M427/ WPWXJ ONLY

WPWXJ ONLY

EXCEPT PD-M427/WPWXJ

PD-M427/WPWXJ and PD-M407/WPWXJ TYPES
AC POWER CORD ADG1123 : AC220-240V 50/60Hz WPWXJ TYPE

PD-M427/RDXJ and PD-M407/RDXJ TYPES
AC POWER CORD PDG1013 : AC110-127V/220-240V 50/60Hz

FUNCTION BOARD ASSY S701 : EJECT S702 : REPEAT S703 : PGM S704 : DISC S705 : TRACK /MANUAL SEARCH REV S706 : TRACK /MANUAL SEARCH FWD S707 : STOP S709 : RANDOM S710 : HI-LITESCAN SW BOARD ASSY S801 : POWER STANDBY/ON

D
POWER TRANSFORMR WPWXJ : PTT1236 POWER TRANSFORMER RDXJ : PTT1238

5

6

7

8

A

11

PD-M427, PD-M407

A
2

Waveforms (Mother Board Assy)
TP1-Pin 1: PLAY MODE (RF) 500mV/div 500nsec/div

Note: The encircled numbers denote measuring point in the schematic diagram.

1 50T-JUMP: After switching to the pause mode, press the manual search key. 2 FOCUS-IN: Press the play key without loading a disc.

4'

TP1-Pin 2: 50T - JUMP (*1) MODE (TRER) 200mV/div 1msec/div

6'

IC202-Pin 3: 50T - JUMP (*1) MODE (TRDR) 500mV/div 1msec/div

­ VC

­ VC

­ GND

2

TP1-Pin 1: TRACK SEARCH MODE (RF) 500 mV/div 200 µsec/div

5

IC202-Pin 4: FOCUS-IN (*2) MODE (FODR) 1V/div 200msec/div

7

IC201-Pin 9: PLAY MODE (SPDR) 1V/div 50msec/div

­ VC

­ GND

­ GND

3

TP1-Pin 6: PLAY MODE (FOER) 100mV/div 10msec/div

5

IC202-Pin 4: PLAY MODE (FODR) 1V/div 1msec/div

7

IC201-Pin 9: TRACK SEARCH MODE (SPDR) 2V/div 50msec/div

­ VC

­ GND

­ GND

4

TP1-Pin 2: PLAY MODE (TRER) 200mV/div 1msec/div

6

IC202-Pin 3: PLAY MODE (TRDR) 500mV/div 1msec/div

8

IC202-Pin 9: PLAY MODE (CADR) 0.2V/div 2sec/div

­ VC

­ GND

­ GND

12

PD-M427, PD-M407

8

IC202-Pin 9: TRACK SEARCH MODE (CADR) 2V/div 200msec/div

16

IC301-Pin 54 : PLAY MODE (1kHz) (BCK) 2V/div 500nsec/div

­ GND

­ GND

18

IC301-Pin 50 : PLAY MODE (1kHz) (LRCK) 2V/div 10 µsec/div

33

IC301-Pin 27 : PLAY MODE (MDP) 2V/div 2 µsec/div

­ GND

­ GND

10

IC401-Pin 10 : PLAY MODE (1kHz) (LO) ...............WPWXJ IC301-Pin 86 : PLAY MODE (1kHz) (LOUT1) ...............RDXJ 1V/div 200msec/div

19

IC301-Pin 52 : PLAY MODE (1kHz) (PCMD) 2V/div 500nsec/div

53

IC301-Pin 38 : PLAY MODE (PCO) 2V/div 10 µsec/div

­ GND

­ GND

­ GND

23

TRACK SEARCH MODE Upper : TP1-Pin 1 (RF) 1V/div Lower : IC151-Pin 23 (C.OUT) 2V/div 50 µsec/div

­ GND

­ GND

13

1

2

3

4

PD-M427, PD-M407

4. PCB CONNECTION DIAGRAM
A

4.1 LOADING BOARD ASSY, SELECT BOARD ASSY, MOTOR BOARD ASSY and MECHANISM BOARD ASSY SIDE A
MULTI MECHANISM ASSY (PXA1592)

SERVO MECHANISM ASSY M (PXA1595)

A
CN131
CN102

G
MECHANISM BOARD ASSY PICKUP ASSY (PEA1335)
B
SPINDLE MOTOR INSIDE

CARRIAGE MOTOR

M

M

C
SELECT BOARD ASSY

A
CN202

B
LOADING BOARD ASSY

C

A
CN203

D
MOTOR BOARD ASSY

A
CN204
D

PNP1331-A

14

B C D G
1

2

3

4

1

2

3

4

PD-M427, PD-M407

4.2 FUNCTION BOARD ASSY and SW BOARD ASSY
PNP1366-A

SIDE A
NOTE FOR PCB DIAGRAMS :
1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below.
Symbol In PCB Diagrams Symbol In Schematic Diagrams B C E B C E Part Name

A

CN351

B C E B B C E D D G S G S D G S C E B C E

Transistor

A

Transistor with resistor

Field effect transistor

B

Resistor array

3-terminal regulator

3. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. 4. View point of PCB diagrams.

Connector

Capacitor

SIDE A
C

P.C.Board

Chip Part

SIDE B

FUNCTION BOARD ASSY

SW BOARD ASSY

D

E

F

1

2

3

E F
4

15

1

2

3

4

PD-M427, PD-M407 4.3 MOTHER BOARD ASSY

A
AC POWER CORD
A

SIDE A

MOTHER BOARD ASSY

Q391 Q452 Q454 Q404 Q403 Q453 Q451

Q405 IC406

IC405

B

IC31 VR151 VR152

IC401 IC34

To PICKUP ASSY

IC202 IC21 Q321 VR155 VR156

Q341

C

VR153 VR154

Q151

G
CN610
Q152

D
CN602

D

B
CN601
Q201

16

A
1

E

CN701
2 3

PNP1424­B
4

1

2

3

4

PD-M427, PD-M407

A

SIDE B
MOTHER BOARD ASSY
A

B

C

IC301 IC151

IC351

D

PNP1424­B
1 2 3

4

A

17

PD-M427, PD-M407

5. PCB PARTS LIST
NOTES : ÷ Parts marked by " NSP " are generally unavailable because they are not in our Master Spare Parts List. ÷ The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. ÷ When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J = 5%, and K = 10%). 560 = 56 × 10 1 = 561 ................................................... RD1/4PU 5 6 1 J 47k = 47 × 10 3 = 473 .................................................. RD1/4PU 4 7 3 J 0.5 = R50 ...................................................................... RN2H Â 5 0 K 1 = 1R0 ......................................................................... RS1P 1 Â 0 K Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors). 5.62k = 562 × 10 1 = 5621 ........................................... RN1/4PC 5 6 2 1 F

7 LIST OF WHOLE PCB ASSEMBLIES
Mark Part No. Symbol and Description PD-M427 / WPWXJ
PWM2156 PWX1337 PWZ2769 PWZ2805 PXA1592 PWX1279 PWZ2038 PWZ2040 PWZ2533 PXA1595 PWX1192

PD-M427 / RDXJ
PWM2155 PWX1337 PWZ2769 PWZ2805 PXA1592 PWX1279 PWZ2038 PWZ2040 PWZ2533 PXA1595 PWX1192

PD-M407 / WPWXJ
PWM2153 PWX1335 PWZ2768 PWZ2805 PXA1592 PWX1279 PWZ2038 PWZ2040 PWZ2533 PXA1595 PWX1192

PD-M407 / RDXJ
PWM2152 PWX1335 PWZ2768 PWZ2805 PXA1592 PWX1279 PWZ2038 PWZ2040 PWZ2533 PXA1595 PWX1192

Remarks

MOTHER BOARD ASSY NSP NSP NSP NSP NSP NSP NSP NSP NSP SUB BOARD ASSY FUNCTION BOARD ASSY SW BOARD ASSY MULTI MECHANISM ASSY MECHA BOARD ASSY LOADING BOARD ASSY MOTOR BOARD ASSY SELECT BOARD ASSY SERVO MECHANISM ASSY M MECHANISM BOARD ASSY

7 CONTRAST OF PCB ASSEMBLIES
FUNCTION BOARD ASSY
PWZ2769 and PWZ2768 are constructed the same except for the following:
Part No. Mark Symbol and Description PWZ2769
CN701 Remote Sensor 9607S­32F SBX1785­51

Remarks PWZ2768
9607S­30F Not used

MOTHER BOARD ASSY
PWM2156, PWM2155, PWM2153 and PWM2152 are constructed the same except for the following:
Mark Symbol and Description PWM2156
IC401 Q341 D341, D391­D394 L391 S5 PD2026B (L) Not used Not used Not used Not used

Part No. PWM2155
Not used 2SK246 1SS254 LAU1R0J PSB1006

Remarks PWM2152
Not used 2SK246 1SS254 LAU1R0J PSB1006

PWM2153
PD2026B (L) Not used 1SS254 LAU1R0J Not used

18

PD-M427, PD-M407
MOTHER BOARD Assy Mark Symbol and Description PWM2156
C29, C461 C312, C313 C341, C342 C393 C399 C403 C404 C413­ C416 C429, C430, C435­ C438 C431, C432 C481, C482 R310­ R312 R341 R342, R366 R391 R392 R401 R405­ R410 R411­ R413 R427­ R430 R435, R436 R437, R438 R439­ R442 R481, R482, R485, R486 R487­ R490 JA391, JA392 CN351 X341 ( 16.9344MHz ) X401 ( 16.9344MHz )

Part No. PWM2155 PWM2153 PWM2152

Remarks

CKCYF103Z50 Not used CKCYF103Z50 Not used CKCYF103Z50 CEAS101M10 CKCYF103Z50 CEAS101M10 Not used CCCCH120J50 Not used CCCCH120J50 Not used CCCSL101J50 CCCSL101J50 CCCSL101J50 Not used Not used CKCYF103Z50 Not used CCCCH120J50 CCCCH220J50 CFTXA104J50 CCCSL390J50 CEAT330M16 Not used RD1/4PU221J Not used Not used Not used Not used RD1/4PU102J RD1/4PU471J RD1/4PU221J RD1/4PU223J RD1/4PU163J RD1/4PU163J RD1/4PU433J Not used Not used Not used HLEM32S-1 Not used PSS1008 Not used Not used Not used Not used Not used CCCSL390J50 Not used RD1/4PU271J RD1/4PU105J PD1/4PU244J RD1/4PU102J Not used Not used Not used Not used Not used RD1/4PU473J RD1/4PU823J RD1/4PU223J RD1/4PU104J RKN1004 HLEM32S-1 PSS1008 Not used CCCCH120J50 CCCCH220J50 CFTXA104J50 CCCSL390J50 CEAT330M16 Not used RD1/4PU221J Not used Not used PD1/4PU244J RD1/4PU102J RD1/4PU102J RD1/4PU471J RD1/4PU221J RD1/4PU223J RD1/4PU163J RD1/4PU163J RD1/4PU433J Not used Not used RKN1004 HLEM30S-1 Not used PSS1008 Not used Not used Not used Not used Not used CCCSL390J50 Not used RD1/4PU271J RD1/4PU105J PD1/4PU244J RD1/4PU102J Not used Not used Not used Not used Not used RD1/4PU473J RD1/4PU823J RD1/4PU223J RD1/4PU104J RKN1004 HLEM30S-1 PSS1008 Not used

7 PARTS LIST FOR PD-M427/WPWXJ
Mark No. Description Parts No. Mark No.
D352 D54 D359 D218 CXA1782CQ CXD2519Q ICP­N10 LA6520 NJM4558D­D PD2026B(L) PD4836A PQ05RR12 2SA854S 2SD2144S DTA124ES DTC124ES D11­D14, D52

Description

Parts No.
1SS254 MTZJ18B MTZJ5.1B MTZJ6.2B S5688G

A MOTHER BOARD ASSY
SEMICONDUCTORS
IC151 IC301 IC31, IC34 IC201, IC202 IC405 IC401 IC351 IC21 Q151 Q403, Q404 Q152 Q405

COILS AND FILTERS
L351 AXIAL INDUCTOR LAU100J

CAPACITORS
C181 C403 C404 C383 CCCCH100D50 CCCCH120J50 CCCCH220J50 CCCSL181J50

19

PD-M427, PD-M407

Mark No.

Description

Parts No.
CCCSL221J50 CCCSL390J50 CCCSL390J50 CEAS101M10 CEAS101M10 CEAS101M35 CEAS102M16 CEAS220M25 CEAS330M16 CEAS332M16 CEAS471M6R3 CEAS4R7M50 CEASR47M50 CEAT330M16 CFTXA104J50 CGCYX103K25 CGCYX333K25 CGCYX472K25 CGCYX473K25 CGCYX823K25 CKCYB102K50 CKCYB152K50 CKCYB222K50 CKCYB332K50 CKCYB682K50 CKCYF103Z50 CKCYF103Z50 CKCYF103Z50 CKCYF103Z50 CQMA104J50

Mark No.

Description

Parts No.

C315 C429, C430, C435, C436, C437 C438 C171, C175, C302, C311, C314 C316 C52 C26 C433, C434 C131­ C133, C27 C25 C351 C169, C170, C356 C309 C431, C432 C413, C414, C415, C416 C156, C161, C164, C168, C218 C160 C167 C152, C307 C157 C163 C176, C306, C441, C442 C305 C162 C151 C11, C13, C15, C16, C17 C29, C159, C205, C210, C215 C219, C301, C304, C310­ C313 C353, C357, C461 C153­ C155, C158

OTHERS
CN701 V701 FFC CONNECTOR 32P FL INDICATOR TUBE REMOTE SENSOR 9607S­32F PEL1084 SBX1785­51

F

SW BOARD ASSY
D801 PCX1019

SEMICONDUCTOR

SWITCH
S801 PSG1006

OTHER
J801 2mm JUMPER WIRE D20PWW0420E

B LOADING BOARD ASSY
SWITCHES
S601, S602 DSG1016

OTHER
CN601 CONNECTOR 4P 4­173979­4

D MOTOR BOARD ASSY
OTHER
CN602 6PJUMPER CONNECTOR 52151­0610

RESISTORS
VR153, VR155 (10k ) VR151, VR152, VR154 (22k ) VR156 (220k ) Other Resistors RCP1045 RCP1046 RCP1049 RD1/4PU&&&J

OTHERS
CN131 CN202 CN203 CN204 CN351 JA401 X401 CN201 X351 1mm CONNECTOR MT 4P CONNECTOR CONNECTOR 4P 6P JUMPER CONNECTOR 32P FFC CONNECTOR 2P PIN JACK XTAL RES(16.9344 MHz) TERMINAL CONNECTOR 6P CERAMIC RES(4.19 MHz) SLW16S­1C7 173981­4 4­173981­4 52147­0610 HLEM32S­1 PKB1023 PSS1008 RKC­061 RKP­533 VSS1014

C SELECT BOARD ASSY
SWITCHES
S604­S606 S603 DSG1016 PSG1010

G MECHANISM BOARD ASSY
SWITCH
S610 DSG1016

OTHER
CN610 MT 4P CONNECTOR 173979­4

E

FUNCTION BOARD ASSY
D701­ D703 1SS133X

SEMICONDUCTOR SWITCHES
S701­ S710 PSG1006

20

PD-M427, PD-M407

6. ADJUSTMENT
6.1 PREPARATIONS
6.1.1 Jigs and Measuring Instruments

CD TEST DISC (YEDS-7)

Precise screwdriver

screwdriver (small)

screwdriver (medium)

screwdriver (large)

39 k 0.001µF Dual-trace oscilloscope (10 : 1 probe)

56 k 0.001µF

Ball point hexagon wrench (size: 1.5mm) GGK1002

Low-frequency oscillator

Low pass filter 1 (39 k + 0.001µF)

Low pass filter 2 (56 k + 0.001µF)

6.1.2 Necessary Adjustment Points
When Exchange Adjustment points

PICKUP

1.2.3.4.5.6.7. = Page 23~28 8.9.10.11.12

Exchange

MAIN BOARD ASSY

1.3.5.6.7.8. 9.10.11.12

= Page 23~28

Exchange

SERVO MECH ASSY

1.2.3.4.5.6.7. = Page 23~28 8.9.10.11.12

Exchange

SPINDLE MOTOR

ADJ = Page 9

21

PD-M427, PD-M407

6.2 ADJUSTMENT
6.2.1 How to Start/Cancel Test Mode

TEST MODE : ON
W107 W108 W107 W108

Short Point

Short Point

MOTHER BOARD ASSY

MOTHER BOARD ASSY

TEST MODE : PLAY
TEST DISC : YEDS-7

4 /1

¡/ ¢

PROGRAM

6

6
CLOSE

6
OPEN

CD

inwards

outwards
Focus servo : CLOSE

Pickup Move

Spindle motor : START Spindle servo : CLOSE

Tracking servo :

TEST MODE : STOP = CANCEL
7

STOP all operations.

6.2.2 Adjustment Location
REAR
Adjustment screw (Radial tilt direction) Grating
adjustment

CN201

CN201 VR151 VR152 1 2 3 4 5 6 1 2 3 4 5 6

TP1 RF TE TI VC FI FE

6
VR155 VR156

PICKUP ASSY

Adjustment screw (Tangential tilt direction)

1

VR154 VR153

VR151 : TR GAIN VR152 : FO GAIN VR153 : RF LEVEL VR154 : FO OFFSET VR155 : TR BAL VR156 : FO BEST

FRONT

22

W107

W108

PD-M427, PD-M407

6.2.3 Check and Adjustment

1. Focus Offset Adjustment

Test mode None disc

VR154
MOTHER BOARD ASSY

DC voltage 0±50mV

Oscilloscope
DC Mode V: 5mV/div H: 10mSec/div

START
TP1 (CN201)
FE VC

Player

Prove (10:1)

6 4

GND

MOTHER BOARD ASSY

2. Grating Adjustment
Turn counterclockwise from null. Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = OPEN
TEST DISC

Locate null.

Counterclockwise, Maximum amplitude. Innermost circumference (1 TRK) PICKUP

PLAY

Oscilloscope
DC Mode V: 10mV/div H: 5mSec/div

START
TP1 (CN201)
TE VC

Player Low pass filter 1
Prove (10:1) 39k 0.001µF GND

2 4

MOTHER BOARD ASSY

23

PD-M427, PD-M407

3. Tracking Error Balance Adjustment
Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = OPEN
TEST DISC

A=B
A VC

PLAY

Innermost circumference (1 TRK)

VR155
MOTHER BOARD ASSY

B

Oscilloscope

START
TP1 (CN201)
TE VC

Player Low pass filter 1
Probe (10:1) 39k 0.001µF

DC Mode V: 10mV/div H: 5mSec/div

MOTHER BOARD ASSY

4. Pickup 1Radial 2Tangential Direction Tilt Adjustment
Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

GND

2 4

1
TEST DISC

2

NG
1

2

PLAY Position where the screw is visible through the adjustment hole of the float base after moving toward the outer peripheral. Eye pattern Remove lock tight.

OK (Smooth)

Oscilloscope
AC Mode V: 20mV/div H: 200nSec/div

START
TP1 (CN201)
RF VC

Player

Probe (10:1)

1 4

GND

MOTHER BOARD ASSY

24

PD-M427, PD-M407

5. RF Level Adjustment
Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

1.2VP-P ±0.1V

PLAY

Innermost circumference (1 TRK)

VR153
MOTHER BOARD ASSY

Oscilloscope
AC Mode V: 50mV/div H: 10mSec/div

START

Player TP1 (CN201)

Prove (10:1)

RF VC

1 4

GND

MOTHER BOARD ASSY

6. Focus Best Adjustment

Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

MAX

PLAY

Innermost circumference (1 TRK)

VR156
MOTHER BOARD ASSY

Adjust the RF level to maximum, with the focus error voltage within ±150mV.

Oscilloscope
DC Mode CH1: 5mV/div CH2: 20mV/div H: 200ns/div Prove(10:1)

START

TP1 (CN201)
FE RF VC

Player

GND

GND

6 1 4

Prove(10:1)

MOTHER BOARD ASSY

25

PD-M427, PD-M407

7. RF Level Adjustment
Check
Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

1.2VP-P ±0.1V

Innermost circumference PLAY (1 TRK)

VR153
MOTHER BOARD ASSY

Make adjustment if the value exceeds the specified range.

Oscilloscope
AC Mode V: 50mV/div H: 10mSec/div

START

Player TP1 (CN201)
Prove (10:1) GND

RF VC

1 4

MOTHER BOARD ASSY

8. Focus Servo Loop Gain Adjustment
UNDER Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

UPPER

Innermost circumference PLAY (1 TRK)

VR152
MOTHER BOARD ASSY

JUST Lissajous Waveform

Oscilloscope
X-Y Mode X: 20mV/div Y: 5mV/div

START
TP1 (CN201)
FE FI VC

Player

Prove (10:1)

Low-frequency oscillator
1.2kHz 1Vp-p

GND
56k 100k 0.001µF

Prove (10:1)

6 5 4

MOTHER BOARD ASSY

GND

GND

Low pass filter 2

26

PD-M427, PD-M407

9. Focus Best Adjustment
Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

MAX

Innermost circumference PLAY (1 TRK)

VR153
MOTHER BOARD ASSY

Adjust the RF level to maximum, with the focus error voltage within ±150mV.

Oscilloscope
DC Mode CH1: 5mV/div CH2: 20mV/div H: 200ns/div Prove (10:1)

START

TP1 (CN201)
FE RF VC

Player

GND

GND

6 1 4

Prove (10:1)

MOTHER BOARD ASSY

10. Focus Servo Loop Gain Adjustment
Check
UNDER Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

UPPER

Innermost circumference PLAY (1 TRK)

VR152
MOTHER BOARD ASSY

JUST Lissajous Waveform

Oscilloscope
Readjust if adjustment is incorrect. X-Y Mode X: 20mV/div Y: 5mV/div

START
TP1 (CN201)
FE FI VC

Player

Prove (10:1)

Low-frequency oscillator
1.2kHz 1Vp-p

GND
56k 100k 0.001µF

Prove (10:1)

6 5 4

MOTHER BOARD ASSY

GND

GND

Low pass filter 2

27

PD-M427, PD-M407

11. Focus Best Adjustment
Adjust this point only if adjustment was made in item 10.

Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

MAX

Innermost circumference PLAY (1 TRK)

VR156
MOTHER BOARD ASSY

Adjust the RF level to maximum, with the focus error voltage within ±150mV.

Oscilloscope

START

TP1 (CN201)
FE RF VC

Player
Prove (10:1)

DC Mode CH1: 5mV/div CH2: 20mV/div H: 200ns/div

GND

GND

6 1 4

Prove (10:1)

MOTHER BOARD ASSY

12. Tracking Servo Loop Gain Adjustment
UNDER Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC

UPPER

Innermost circumference PLAY (1 TRK)

VR151
MOTHER BOARD ASSY

JUST Lissajous Waveform

Oscilloscope
X-Y Mode X: 20mV/div Y: 10mV/div

START
TP1 (CN201)
TE TI VC

Player

Prove (10:1)

Low-frequency oscillator
1.2kHz 1Vp-p

GND
100k

Prove (10:1)

2 3 4

MOTHER BOARD ASSY

GND

GND

28

PD-M427, PD-M407

7. GENERAL INFORMATION
7.1 DISPLAY
7 PEL1084 (V701: FUNCTION BOARD ASSY)
¶ Pin Assignment

¶ Pin Connection

¶ Grid Assignment

¶ Anode Connection

29

PD-M427, PD-M407

7.2 BLOCK DIAGRAM

PICKUP Assembly

SERVO CONTROLLER IC151 CXA1782CQ

DECODER IC301 CXD2519Q

DAC IC401 PD2026B(L)

LPF IC405 NJM4558D-D

AUDIO SIGNAL

. Focus . Tracking
AMP

WPWXJ type Only

M
. Spindle . Carriage . Loading etc

IC201 IC202 LA6520

CPU IC351 PD4836A

DISPLAY FUNCTION KEY

POWER SUPPLY

30

PD-M427, PD-M407

8. PANEL FACILITIES AND SPECIFICATIONS
7 PANEL FACILITIES
STANDBY/ON Remote sensor window MAGAZINE Display window Receive the signal from the remote control unit. insertion slot RANDOM HI-LITE

MULTI COMPACT DISC PLAYER

PD--M427

DISC

TRACK

MIN

SEC

'
STANDBY/ON

RANDOM

HI--LITE

Î

6

-DISC
MULTI CD

EJECT

REPEAT PROGRAM

DISC

TRACK/MANUAL

STOP

PLAY/PAUSE

0

41

¡¢

7
1-BIT¥DLC

6

DIRECT LINEAR CONVERSION

RANDOM DELETE

Play Pause DISC number TRACK number
DISC TRACK MIN SEC

EJECT REPEAT PROGRAM DISC

PLAY/PAUSE STOP

DELETE RANDOM PROGRAM 1 REPEAT--1 2 3 4 5 6

TRACK/MANUAL
DISC SCAN

REPEAT PROGRAM

DISC

Minutes

DISC SCAN

Seconds

REMOTE CONTROL UNIT
Remote control buttons with the same names or marks as buttons on the front panel of the player control the same operations as the corresponding front panel buttons.

1
DISC 1

STANDBY/ON DISC 2 DISC 3

2 3 4 5 6 7

DISC 4

DISC 5

DISC 6

7
RANDOM

8 1 4
PROGRAM

3 ¡ ¢
DELETE

HI­LITE

CHECK

CLEAR

8 9 10 11 12 13

Î
CU-PD104

'

MULTI COMPACT DISC PLAYER REMOTE CONTROL UNIT

1 2 3 4 5 6 7 8 9 10 11 12 13

STANDBY/ON button DISC NUMBER buttons (DISC 1-DISC 6) STOP button (7) 7 RANDOM button Hl-LlTE SCAN button PROGRAM button CHECK button PAUSE button PLAY button (3) 3 MANUAL search buttons (1 , ¡) 1 TRACK search buttons (4 , ¢) 4 DELETE button CLEAR button

(PD-M427 Only)

31

PD-M427, PD-M407

7 SPECIFICATIONS
General
Type ............................... Compact disc digital audio system Power requirements Multi-voltage model ...................... AC 110-127/220-240 V (Switchable), 50/60Hz Australian and New Zealand models ..................................................... AC 220-240 V, 50/60Hz Power consumption Australian and New Zealand models ........................ 12 W Operating temperature ...................................... +5°C-+35°C (+41°F­ +95°F) Weight (without package) ........................ 3.7 kg (8 lb, 3 oz.) External dimensions ............ 420(W) x 294 (D) x 105 (H) mm 16-9/16 (W) x 11-9/16 (D) x 4-1/8 (H) in

Output terminal
Audio line output Control input/output jacks

Accessories
· · · · · · Remote control unit (PD-M427 only) .............................. Size AAA/R03 dry cell batteries (PD-M427 only) ............ Six-compact-disc magazine ............................................. Control cable ................................................................... Output cable ................................................................... Operating instructions .................................................... 1 2 1 1 1 1

Audio section
Frequency response ...................................... 2 Hz ­ 20 kHz Output voltage ............................................................. 2.0 V Wow and flutter ................................ Limit of measurement (0.001% W.PEAK) or less (EIAJ) Channels .................................................. 2-channel (stereo)

NOTE: Specifications and design subject to possible modification without notice, due to improvements.

mark The Magazine Type Multi CD Players with and the Magazines with the same mark are compatible for 5 inch (12 cm) discs.

Accessories
· Operating instructions
STANDBY/ON DISC 1 DISC 2 DISC 3 DISC 4 DISC 5 DISC 6

7
RANDOM

8 1 4
PROGRAM

3 ¡ ¢
DELETE

White

HI­LITE

CHECK

CLEAR

Î
CU-PD104

'

MULTI COMPACT DISC PLAYER REMOTE CONTROL UNIT

Red

6-Compact disc magazine (PXA1617)

Output cable (PDE1248) (L= 1 m)

Control cable (PDE1247) (L= 1 m)

Remote control unit (PWW1149) (CU-PD104)

Dry cell batteries (AAA/R03)

PD-M427 Only

32