Pioneer PD-M427, PD-M407 Service Manual

MULTI COMPACT DISC PLAYER

Type

Model

Power Requirement

The voltage can be converted by the following method.

PD-M427

RFXJ

AC110-127V/ 220-240V

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

With the voltage selector

STANDBY/ON

-DISC

MULTI CD

6

'

EJECT REPEATPROGRAM DISC

0

DISC TRACK MIN SEC

TRACK/MANUAL

41 ¢¡

1-BIT•DLC

RANDOM

STOP PLAY/PAUSE

7

DIRECT LINEAR CONVERSION

HI–LITE

6

PD-M427

MULTI COMPACT DISC PLAYER

PD-M427 RFXJ

ORDER NO.

RRV2905

For details, refer to "Important symbols for good services" .

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2004

T – ZZR MAR. 2004 Printed in Japan

1

SAFETY INFORMATION

A

This service manual is intended for qualified service technicians ; it is not meant for the casual do­it-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.

23

4

B

C

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1
BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR
CLASS 1.
A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE APPARATUS.

LASER DIODE CHARACTERISTICS

FOR DVD : MAXIMUM OUTPUT POWER : 5 mW

WAVELENGTH : 650 nm

FOR CD : MAXIMUM OUTPUT POWER : 7 mW

WAVELENGTH : 780 nm

WARNING !

LABEL CHECK

D

(DRW2168)

Additional Laser Caution

1. Laser Interlock Mechanism
The position of the switch (S651) for detecting loading
state is detected by the system microprocessor, and
the design prevents laser diode oscillation when the switch (S651)
is not on CLMP terminal side (CLMP signal is OFF or high level).
Thus, the interlock will no longer function if the switch (S651)
is deliberatery set to CLMP terminal side. (low level)

E

REAR

F

2

1234

PD-M427

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 26 of IC351 (LDON) is connected
to low level (ON), or else the terminals of Q151 are shorted
to each other (fault condition).

2. When the cover is opened, close viewing of the objective lens with
the naked eye will cause exposure to a Class 1 laser beam.

* : Refer to page 23. on the service manual RRV2905.

1

234

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.

A

B

C

D

E

F

PD-M427

1

2

3

4

3

CONTENTS

A

SAFETY INFORMATION ......................................................................................................................................2

1. SPECIFICATIONS ................................................................................................................................................. 5

2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................... 6

2.1 PACKING SECTION ............................................................................................................................... 6

2.2 EXTERIOR (1/2)SECTION ............................................................................................................................. 8

2.3 EXTERIOR (2/2)SECTION.................................................................................................................................................................................................. 9

2.4 SINGLE MECHANISM SECTION ................................................................................................................... 10

B

C

3. SCHEMATIC DIAGRAM .................................................................................................................................................................................. ... 12

3.1 MOTHER, DISPLAY and SW BOARD ASSYS ........................................................................................... 12

3.2 WAVEFORMS MOTHER BOARD ASSY ..................................................................................................... 14

4. PCB CONNECTION DIAGAM ............................................................................................................................ 16

4.1 MECHA, DISPLAY, SW and HP BOARD ASSYS 16

4.2 MOTHER BOARD ASSY .................................................................................................................................................................................... 17

5. PCB PARTS LIST ............................................................................................................................................... 19

6. ADJUSTMENT .................................................................................................................................................... 22

6.1 PREPARATIONS .............................................................................................................................................................................................................................................................................. 22

6.2 ADJUSTMENT .............................................................................................................................................................................................................................................................................. 23

7. GENERAL INFORMATION ................................................................................................................................ 30

7.1 DISPLAY .................................................................................................................................................. 30

7.2 CLEANING ............................................................................................................................................ 31

7.3 BLOCK DIAGRAM .................................................................................................................................... 31

1

23

.......................................................................................

4

8. PANEL FACILITIES ............................................................................................................................................ 32

D

E

F

4

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PD-M427

1

1. SPECIFICATIONS

SPECIFICATIONS

234

A

General

Type ............................... Compact disc digital audio system

Power requirements

Multi-voltage model ...................... AC 110-127/220-240 V

(Switchable), 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

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)

Output terminal

Audio line output
Control input/output jacks

Accessories

• Remote control unit ..............................

• Size AAA/R03 dry cell batteries ............ 2

• Six-compact-disc magazine ............................................. 1

• Control cable ................................................................... 1

• Output cable ................................................................... 1

• Operating instructions .................................................... 1

NOTE:

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

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

.............................. 1

..............................

B

C

Accessories

• Operating instructions

6-Compact disc magazine

(PXA1617)

Red

White

Output cable

(PDE1315)

(L= 1 m)

Control cable

(PDE-319)

(L= 1 m)

STANDBY/ON

DISC 1 DISC 2 DISC 3

DISC 4 DISC 5 DISC 6

783

RANDOM

1¡

HI–LITE

4¢

PROGRAM DELETE

CLEARCHECK

'

Î

MULTI
COMPACT DISC PLAYER
REMOTE CONTROL UNIT

CU-PD104

Remote control unit

(PWW1149)

(CU-PD104)

D

E

Dry cell batteries

(AAA/R03)

F

PD-M427

1

2

3

4

5

1

23

2. EXPLODED VIEWS AND PARTS LIST

4

NOTES:

A

2.1 PACKING

B

C

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.
Screws adjacent to mark on product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)

1

2

12

7

6

3

4

11

10

D

E

REAR

9

8

5

F

6

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PD-M427

1

PACKING PARTS LIST

•

234

(1) PACKING PARTS LIST

Mark No. Description Parts No.

1 Control Cable (for SR) (L=1 m) PDE-319
2 Output Cable (L=1 m) PDE1315

(for AUDIO)

3 Remote Control Unit PWW1149

(CU-PD104)
4 Battery Cover PZN1010
5 6-Compact Disc Magazine PXA1617

6 Operating Instructions PRE1298

(English, Trad-Chinese)
7 Styrol Protector (F) PHA1276
8 Styrol Protector (R) PHA1277
9 CD Packing Case PHG2373

10 Mirror Mat Sheet Z23–007

(750X600X0.5)

A

B

NSP 11 Dry Cell Battery (AAA/R03) VEM-022

12 Caution 220V Label ARR1003

C

D

E

F

PD-M427

1

2

3

4

7

1

2.2 EXTERIOR

23

4

20

27

34

22

21

5

21

24

3

22

21

32

A

B

(Refer to "2.3 MULTI

MECHANISM ASSY".)

28

7

C

24

7

17

25

7

34

F

D

23

30

12

9

22

16

18

E

11

22

8

29

4

22

25

17

2

23

14

F

19

33

6

6

1

26

10

15

F

8

1234

8

22

PD-M427

1

EXTERIOR PARTS LIST

234

A

Mark No. Description Part No.

1 Strain Relief CM–22C
2 32P F.F.C/30V PDD1041
3 Power Transformer PTT1238
4 AC Power Cord PDG1075
5 Bonnet PYY1149

6 Foot Assy AEC1531
7 Screw IBZ30P080FCC
8 Rubber Sheet AEB1111
9 Function Panel PNW2913

10 Play Button PAC1766

11 Name Plate PAM1776
12 Power Button PAC1719
13 …………………
14 Track Button PAC1765
15 Display Window PAM1855

16 Spring (Door) PBH1022

NSP 17 Earth Lead Unit DE007VF0

18 Door PNW2598
19 FUNCTION BOARD Assy PWZ2769
20 MOTHER BOARD Assy PNW2155

Mark No. Description Part No.

21 Screw BBZ30P060FMC
22 Screw BBZ30P080FZK
23 Screw PPZ30P120FMC
24 Screw FBT40P080FZK
25 Screw PDZ30P050FMC

NSP 26 Under Base PNA1751

27 Rear Base PNA2597

NSP 28 Multi Mechanism Assy PXA1592

29 Flat Cable (6P) D20PYY0615E

NSP 30 SW BOARD Assy PWZ2805

31 • • • •
32 Caution Label DRW2168

NSP 33 Locking Card Spacer AEC7492

34 Binder ZCA-SKB90BK

B

C

D

E

F

PD-M427

1

2

3

4

9

1

2.3 MULTI MECHANISM ASSY

A

25

B

4

40

C

35

38

75

38

26

17

40

23

82

24

23

24

22

14

79

Red Mark

57

49

38

85

56

73

Mark

54

72

53

74

39

40

63

∗

1 Label

Fix the motor (No.

59

9

7

5

59) on the gear
holder (No. 2) so that

1

the label attached on
the motor faces the

39

direction illustrated.

2

37

18

21

19

20

13

17

16

42

41

Red

87

50
80

84

78

51

69

68

70

83

43

61

58

4

62

24

22

24

23

71

52

83

48

55

3

86

28

30

29

47

46

47

∗

2 Label

38

33

15

64

8

9

32

76

77

47

46

47

27

60

38

12

D

66

38

6

45

E

11

38

44

38

10

67

36

59

1

7

37

5

40

31

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

F

direction illustrated.

10

1234

PD-M427

65

34