Pioneer PD-M427 Building instructions

ORDER NO.
PIONEER ELECTRONIC CORPORATION 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
WPWXJ ‡‡AC220–240V –––––––
RDXJ ‡‡AC110–127V/220–240V With the voltage selector
MULTI COMPACT DISC PLAYER
RRV2122
T–ZZR APR. 1999 Printed in Japan
PD-M427
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
7. GENERAL INFORMATION ..............................29
7.1 DISPLAY ....................................................29
7.2 BLOCK DIAGRAM......................................30
8. PANEL FACILITIES AND SPECIFICATIONS
...................................................................31
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
'
76
6
MULTI COMPACT DISC PLAYER
STANDBY/ON
DISC TRACK MIN SEC
1-BIT¥DLC DIRECT LINEAR CONVERSION
EJECT REPEAT PROGRAM DISC TRACK/MANUAL
RANDOM HI—LITE
STOP PLAY/PAUSE
-DISC
MULTI CD

0
41 ¢¡
PD-M407
Model
PD-M427 PD-M407
Type Power Requirement The voltage can be converted by
the following method.

PD-M427, PD-M407
2
WPWXJ type Only
REAR
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
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.
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).
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.
Additional Laser Caution
∗Refer to page 22.

PD-M427, PD-M407
3

PD-M427, PD-407
4
REAR
10
9
5
8
11
4
3
7
6
12
1
2
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
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.
÷Screw adjacent to
∞
mark on the product are used for disassembly.

PD-M427, PD-M407
5
1 Control Cable (for SR) (L=1 m) Not used PDE1247 PDE1247 PDE1247
3 Remote Control Unit (CU-PD104) PWW1149 PWW1149 Not used Not used
4 Battery Cover PZN1010 PZN1010 Not used Not used
6 Operating Instructions (English) PRB1288 Not used PRB1288 Not used
6 Operating Instructions Not used PRE1281 Not used PRE1281
(English/Spanish/Chinese)
9 CD Packing Case PHG2373 PHG2373 PHG2371 PHG2371
NSP 11 Dry Cell Battery (AAA/R03) VEM-022 VEM-022 Not used Not used
12 Caution 220V Label Not used ARR1003 Not used ARR1003
1 Control Cable (for SR) (L=1 m) See Contrast table (2)
2 Output Cable (L=1 m) PDE1248
(for AUDIO)
3 Remote Control Unit See Contrast table (2)
(CU-PD104)
4 Battery Cover See Contrast table (2)
5 6-Compact Disc Magazine PXA1617
6 Operating Instructions See Contrast table (2)
7 Styrol Protector (F) PHA1276
8 Styrol Protector (R) PHA1277
9 CD Packing Case See Contrast table (2)
10 Mirror Mat Sheet Z23–007
(750X600X0.5)
NSP 11 Dry Cell Battery (AAA/R03) See Contrast table (2)
12 Caution 220V Label See Contrast table (2)
(1) PACKING PARTS LIST
Mark No. Description Parts No.
(2) CONTRAST TABLE
PD-M427/WPWXJ, RDXJ, PD-M407/WPWXJ and RDXJ are constructed the same except for the following:
WPWXJ RDXJ WPWXJ RDXJ
Part No.
Mark Remarks
Symbol and Description
No. PD-M427 PD-M407

PD-M427, PD-407
6
2.2 EXTERIOR
F
F
1
4
3
20
21
21
24
21
22
22
32
27
29
5
22
7
7
28
7
17
25
25
17
24
2
6
26
8
10
14
19
9
16 18
22
23
30
23
22
22
12
31
11
8
6
33
15
(Refer to "2.3 MULTI
MECHANISM ASSY".)
WPWXJ
type only
34
34

PD-M427, PD-M407
7
2 32P F · F · C/30V PDD1041 PDD1041 Not used Not used
2 30P F · F · C/30V Not used Not used PDD1049 PDD1049
3 Power Transformer PTT1236 PTT1238 PTT1236 PTT1238
4 AC Power Cord ADG1123 PDG1013 ADG1123 PDG1013
9 Function Panel PNW2913 PNW2913 PNW2912 PNW2912
15 Display Window PAM1798 PAM1798 PAM1797 PAM1797
19 FUNCTION BOARD ASSY PWZ2769 PWZ2769 PWZ2768 PWZ2768
20 MOTHER BOARD ASSY PWM2156 PNW2155 PNW2153 PNW2152
27 Rear Base PNA2501 PNA2500 PNA2499 PNA2498
32 Caution Label PRW1018 Not used PRW1018 Not used
1 Strain Relief CM–22B
2 F.F.C/30V See Contrast table (2)
3 Power Transformer See Contrast table (2)
4 AC Power Cord See Contrast table (2)
5 Bonnet PYY1149
6 Foot Assy AEC1531
7 Screw IBZ30P080FCC
8 Rubber Sheet AEB1111
9 Function Panel See Contrast table (2)
10 Play Button PAC1766
11 Name Plate PAM1776
12 Power Button PAC1719
13 …………………
14 Track Button PAC1765
15 Display Window See Contrast table (2)
16 Spring (Door) PBH1022
NSP 17 Earth Lead Unit DE007VF0
18 Door PNW2598
19 FUNCTION BOARD Assy See Contrast table (2)
20 MOTHER BOARD Assy See Contrast table (2)
(1) EXTERIOR PARTS LIST
Mark No. Description Parts No.
(2) CONTRAST TABLE
PD-M427/WPWXJ, RDXJ, PD-M407/WPWXJ and RDXJ are constructed the same except for the following:
Mark No. Description Parts No.
21 Screw BBZ30P060FMC
22 Screw BBZ30P080FZK
23 Screw PPZ30P120FMC
24 Screw FBT40P080FZK
25 Screw PDZ30P050FMC
NSP 26 Under Base PNA1751
27 Rear Base See Contrast table (2)
NSP 28 Multi Mechanism Assy PXA1592
29 Flat Cable (6P) D20PYY0615E
NSP 30 SW BOARD Assy PWZ2805
31 LED Lens PNW2019
32 Caution Label See Contrast table (2)
NSP 33 Locking Card Spacer PEC1036
34 Binder ZCA-SKB90BK
WPWXJ RDXJ WPWXJ RDXJ
Part No.
Mark Remarks
Symbol and Description
No. PD-M427 PD-M407

PD-M427, PD-407
8
2.3 MULTI MECHANISM ASSY
47
32
33
76
29
30
39
50
80 68
38
43
83
61
27
64
13
42
21
7
9
2
18
39
59
38
75 63
38
26
25
1
37
40
17
40
5
4
40
16
17
24
71
52 55
3
83
48
86
58
69
23
24
62
22
24
23
24 85
56
49
54 51
87 78
57
70
84
82
79
73 74
53
72
22
19
20 41
14
15
77
38
9
1
38
12 36
67
11 59
∗2 Label
8
38
66
38
60 10
35
6
45
44 38
37
5
40
7
31
46 47 28
47 46 47
34
65
∗1 Label
Red Mark Red
Mark
Fix the motor (No. 59)
on the gear holder (No.
2) so that the label
attached on the motor
faces the direction
illustrated.
*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.

PD-M427, PD-M407
9
1 Motor Pulley PNW1634
2 Gear Holder PNW1929
3 PU PWB (POLYIMDE) PNP1442
4 Cam Gear PNW1923
5 Belt PEB1138
6 Top Guide N PNW2441
7 Gear Pulley PNW1918
8 Gear S PNW1919
9 Gear L PNW1920
10 Eject Spring PBH1107
11 SW Lever PNW1927
12 Seven Bar PNW1931
13 Sub Revolving Lever PNW1933
14 Sub Revolving Lever Spring PBH1111
15 Revolving Lever PNW1932
16 Drive Plate PNW1930
17 Motor Screw PBA–112
18 Holder Lever Spring PBH1110
19 Disc Holder PNW1924
20 Cushion A PED1001
21 Holder Lever PNW1925
22 Float Rubber PEB1014
23 Float Rubber PEB1132
24 Float Screw PBA1073
25 Release Lever PNW1934
26 Release Spring PBH1106
27 Clamper Cam PNW1922
28 Clamper Holder PNW1921
29 Centering Spring PBH1109
30 Clamper PNW2774
31 Lock Lever PNW1917
32 Lock Spring PBH1108
33 Stair NL PNW2443
34 Stair NR PNW2444
35 Synchronize Lever PNW1926
36 Motor Assy PEA1130
(LOADING, DISC SELECT)
37 Screw PMZ26P040FMC
38 Screw PPZ30P080FMC
39 Screw BBZ30P060FMC
40 Washer WT26D047D025
41 Washer WA31D054D025
42 E Ring Z39–010
43 Screw IPZ30P080FMC
44 Spacer (Rubber) PEB1238
45 Spacer (Rubber) PEB1179
46 Silent Ring PBK1093
47 Washer WA62D130D025
48 Rack Spring PBH1128
49 Guide Bar PLA1094
50 Disc Table PNW1067
51 Gear 1 PNW2052
52 Gear 2 PNW2053
53 Gear 3 PNW2054
54 Pinion Gear PNW2055
55 FFC Holder M PNW2746
MULTI MECHANISM ASSY PARTS LIST
Mark No. Description Parts No. Mark No. Description Parts No.
56 Carriage Base PNW2699
57 D.C. Motor Assy PEA1235
(Spindle with oil)
58 Pickup Assy PEA1335
59 Carriage Motor VXM1033
60 Eject Lever PNB1306
61 Upper Chassis PNB1267
NSP 62 Servo Mechanism Assy M PXA1595
NSP 63 LOADING BOARD Assy PWZ2038
64 Sub Chassis N PNW2440
65 Main Chassis PNW2074
NSP 66 SELECT BOARD Assy PWZ2533
NSP 67 MOTOR BOARD Assy PWZ2040
68 Disc Table Assy PEA1035
69 Screw BBZ26P060FMC
70 Screw BPZ20P060FMC
71 Screw BPZ26P100FMC
72 Screw JFZ17P025FZK
73 Screw JFZ20P040FMC
74 Washer WT12D032D025
75 Connector Assy PDE1241
76 Stopper Spring PBH1131
77 Stopper PNW2069
78 D.C. Motor Assy (CARRIAGE) PEA1246
NSP 79 MECHANISM BOARD Assy PWX1192
80 Clamp Magnet PMF1014
81 …………………
82 Connector Assy PDE1240
NSP 83 Earth Lead Unit PDF1118
84 Gear Stopper PNB1303
85 Yoke M PNB1312
86 Rack Holder PNW2056
87 Carriage DC Motor PXM1027
Spacer
Spacer
FFC Holder M (Pressure of about 9 kg)
Disc Table
1.2mm
6.9mm
0.9mm
±0.05mm
Yoke M
Spindle Motor
Carriage Base
Stopper
Spacer Setting
Position
2
1
1Use nipper or other tool to cut the three sections marked
Ain figure 1. Then remove the spacer
2While 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.
¶How to Install the Disc Table
A
A

PD-M427, PD-M407
10
A
B
C
D
1234
1234
3. SCHEMATIC DIAGRAM Note : When ordering service parts, be sure to refer to "EXPLODED
VIEWS and PARTS LIST" or "PCB PARTS LIST".
B C D AEFG
53
18
19
16
33
223
3
4
7
5
6
8
23
-0.7V
1.8V
1.8V
0V
1.6V
1.6V
0V
1.6V
1.6V
0.2V
1.7V
1.7V
0V 0V
0V
0V
0V
5.0V
3.4V
5.0V
MOTHER BOARD ASSY
SW BOARD ASSY PWZ2805:WPWXJ and RDXJ TYPES
S801
FUNCTION BOARD ASSY
( PWZ2769 : PD-M427/WPWXJ, RDXJ )
( PWZ2768 : PD-M407/WPWXJ, RDXJ ) PD-M427/ WPWXJ
, RDXJ ONLY
C
D
B
G
A
PICK UP ASSY
PEA1335
SERVO MECHANISM ASSY M
(PXA1595)
MULTI MECHANISM ASSY (PXA1592)
PWM2156:PD-M427/WPWXJ
PWM2155:PD-M427/RDXJ
PWM2153:PD-M407/WPWXJ
PWM2152:PD-M407/RDXJ
D801
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
SPINDLE
MOTOR
ASSY
PEA1235
CARRIAGE
MOTOR
ASSY
PEA1246
VXM1033
VXM1033
KU,KC,RD
4
C301
R362
CN602
D20PYY0615E
R363 R364 R365 10K
10K 10K 10K
MZS1
MZS2
DCH
DCNT
DSEL
M
CN204
DISC SELECT
SELECT BOARD ASSY
(PWZ2533)
LOADING BOARD
ASSY (PWZ2038)
MECHANISM
BOARD ASSY
(PWX1192)
MOTOR
BOARD
ASSY
(PWZ2040)
LPS1 LPS2
CLAMP
LOADING
HOME
EJECT
MAGAZINE MZS1 MZS2
OUT
MULTI
SINGLE DCNT DCNM
2-6DISC
HOME
SELECTING
IN
L
L
L
L
L
LL
L
L
L
H
HH
H
H
H
H
H
H
J701 CN351
HLEM32S-1
HLEM30S-1
PD-M427
PD-M407 PDD1041 PDD1049
S603:PSG1010
S604-S606:DSG1016
52147-0610
52151-0610
S601,S602:DSG1016
CN601
4-173979-4
4-173981-4
Holder PNB1285
DSDW
DSUP
CN610

PD-M427, PD-M407
11
A
B
C
D
5678
5678
A
1.6V
1.6V 0V
0V
-9.2V
0V
-9.2V
0V
1.6V
1.6V
0V
PD-M427/RDXJ
and PD-M407/RDXJ TYPES
PD-M427, PD-M407/
RDXJ
PD-M427/WPWXJ, PD-M407/WPWXJ ONLY
39P
PD-M427/WPWXJ and
PD-M407/WPWXJ TYPES
PD-M427/RDXJ, PD-M407/WPWXJ
and PD-M407/RDXJ TYPES
AC POWER CORD
ADG1123 :
AC220-240V 50/60Hz
WPWXJ TYPE
POWER
TRANSFORMR
WPWXJ : PTT1236
PD-M427/RDXJ and
PD-M407/RDXJ TYPES
WPWXJ
ONLY
AC POWER CORD
PDG1013 :
AC110-127V/220-240V
50/60Hz
POWER
TRANSFORMER
RDXJ : PTT1238
MTZJ5.1
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
1SS254
10
10
WPWXJ
PD-M427/
ONLY
WPWXJ RDXJ
EXCEPT PD-M427/WPWXJ
MZSI
MZS2
DCHM
LPS2
DCNT
DSUP
DSDW
LPS1
( WPWXJ:0.01)
( WPWXJ:0.01)
B
(16.9344MHz)
:
NJM4558D-D
NJM4558D-D
22/25
22/25
PIN No.
Volta-
ge(V) PLAY
PLAY:1DISC PLAY.
STOP 5.0
5.0
-23.2
-23.8
12345
-23.2 -23.2 -23.2
-23.7 -23.7 -23.8
6789
-23.2
-23.8 -23.2
-23.8 -23.2 -23.8 -23.2
-23.8
10 11 12 13 14
-23.2
-23.8 -23.2
-23.8
4.9
0.2
15 16 17 18 19
-0.1
-0.1
-25.9
-26.4
-5.2
-5.2
20
PIN No.
Volta-
ge(V) PLAY
STOP
21 22 23 24 25 26 27 28 29
4.9
4.9
-22.8 -26.4
30 31 32 33 34
4.9
4.8 4.0
2.5
35 36 37 38 39
4.9
4.9 0.0
0.0 40
4.8
4.9 2.9 4.0
2.3 0.0
0.0 0.0
0.0 0.0
0.0
PIN No.
Volta-
ge(V) PLAY
STOP
41 42 43 44 45 46 47 48 49
0.0
0.0
50 51 52 53 54
4.9
4.9
55 56 57 58 59
4.9
4.9 0.1
0.1
60
4.9
4.9 4.9 2.3
2.3 2.2
2.2 0.1
0.1
0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0 5.0
5.0 0.0
0.0 5.0
0.0 4.9
0.0 4.9 61 62 63 64
0.1
0.1 0.1
0.1 0.1
0.1 0.1
0.1
IC351(PD4836A)
-16.8
-17.0
-16.7-16.7 -22.2
-23.0
-22.9
-22.5 -19.8
-23.2 -13.5 -10.5 -0.4
-0.37 -0.43 -0.44 -19.0 -20.0 -13.5 -10.5 -13.3 -10.4 0.9
0.0

PD-M427, PD-M407
12
TP1-Pin 1: PLAY MODE (RF)
500mV/div 500nsec/div
IC202-Pin 9: PLAY MODE (CADR)
0.2V/div 2sec/div
2
25
57
7
8
6
4
3
6'4'
TP1-Pin 1: TRACK SEARCH MODE
(RF)
500 mV/div 200 µsec/div
TP1-Pin 6: PLAY MODE (FOER)
100mV/div 10msec/div
TP1-Pin 2: PLAY MODE (TRER)
200mV/div 1msec/div
TP1-Pin 2: 50T - JUMP (*1) MODE
(TRER)
200mV/div 1msec/div
IC202-Pin 4: FOCUS-IN (*2) MODE
(FODR)
1V/div 200msec/div
IC202-Pin 4: PLAY MODE (FODR)
1V/div 1msec/div
IC202-Pin 3: PLAY MODE (TRDR)
500mV/div 1msec/div
IC202-Pin 3: 50T - JUMP (*1) MODE
(TRDR)
500mV/div 1msec/div
IC201-Pin 9: PLAY MODE (SPDR)
1V/div 50msec/div
IC201-Pin 9: TRACK SEARCH MODE
(SPDR)
2V/div 50msec/div
– VC – VC
– VC
– VC
– VC – GND
– GND
– GND
– GND
– GND
– GND
– GND
A
Waveforms (Mother Board Assy)
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.

PD-M427, PD-M407
13
IC301-Pin 38 : PLAY MODE
(PCO)
2V/div 10 µsec/div
53
33
19
23
10
18
16
8IC202-Pin 9: TRACK SEARCH MODE
(CADR)
2V/div 200msec/div
IC401-Pin 10 : PLAY MODE (1kHz)
(LO) ...............WPWXJ
IC301-Pin 86 : PLAY MODE (1kHz)
(LOUT1) ...............RDXJ
1V/div 200msec/div
IC301-Pin 54 : PLAY MODE (1kHz)
(BCK)
2V/div 500nsec/div
IC301-Pin 50 : PLAY MODE (1kHz)
(LRCK)
2V/div 10 µsec/div
IC301-Pin 52 : PLAY MODE (1kHz)
(PCMD)
2V/div 500nsec/div
TRACK SEARCH MODE
Upper : TP1-Pin 1 (RF) 1V/div
Lower : IC151-Pin 23 (C.OUT)
2V/div 50 µsec/div
IC301-Pin 27 : PLAY MODE (MDP)
2V/div 2 µsec/div
– GND
– GND
– GND
– GND
– GND
– GND
– GND– GND
– GND

PD-M427, PD-M407
14
A
B
C
D
1234
1234
4. PCB CONNECTION DIAGRAM
4.1 LOADING BOARD ASSY, SELECT BOARD ASSY, MOTOR BOARD ASSY
and MECHANISM BOARD ASSY
SPINDLE
MOTOR INSIDE
CARRIAGE
MOTOR
M
M
G
MECHANISM BOARD ASSY
MULTI MECHANISM ASSY (PXA1592)
SERVO MECHANISM ASSY M (PXA1595)
PICKUP ASSY
(PEA1335)
CN102
B
LOADING BOARD ASSY
C
SELECT BOARD ASSY
D
MOTOR BOARD ASSY
A
CN202
A
CN131
A
CN203
A
CN204
PNP1331-A
SIDE A
B C DG

PD-M427, PD-M407
15
A
B
C
D
1234
1234
4.2 FUNCTION BOARD ASSY and SW BOARD ASSY
EF
SIDE A
EFUNCTION BOARD ASSY
FSW BOARD ASSY
ACN351
PNP1366-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.
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.
Symbol In PCB
Diagrams Symbol In Schematic Diagrams Part Name
BCE
D
D
G
G
S
S
BCE
BCE
DGS
BCEBCE
BCE
Transistor
Transistor
with resistor
Field effect
transistor
Resistor array
3-terminal
regulator
Capacitor
Connector
P.C.Board Chip Part
SIDE A
SIDE B

PD-M427, PD-M407
16
A
B
C
D
1234
1234
A
4.3 MOTHER BOARD ASSY
A
MOTHER BOARD ASSY
PNP1424–B
G
CN610
AC POWER CORDTo PICKUP ASSY
D
CN602
B
CN601
E
CN701
VR151
VR152
Q391
Q452
Q454
Q404
Q403
Q453
Q451
Q405
IC406
IC405
IC31
IC401
IC34
Q341
Q151
Q152
Q201
IC202
IC21
Q321
VR153
VR154
VR155
VR156
SIDE A

PD-M427, PD-M407
17
A
B
C
D
1234
1234
A
AMOTHER BOARD ASSY
PNP1424–B
IC301
IC151
IC351
SIDE B

PD-M427, PD-M407
18
MOTHER BOARD ASSY PWM2156 PWM2155 PWM2153 PWM2152
NSP SUB BOARD ASSY PWX1337 PWX1337 PWX1335 PWX1335
FUNCTION BOARD ASSY PWZ2769 PWZ2769 PWZ2768 PWZ2768
NSP SW BOARD ASSY PWZ2805 PWZ2805 PWZ2805 PWZ2805
NSP MULTI MECHANISM ASSY PXA1592 PXA1592 PXA1592 PXA1592
NSP MECHA BOARD ASSY PWX1279 PWX1279 PWX1279 PWX1279
NSP LOADING BOARD ASSY PWZ2038 PWZ2038 PWZ2038 PWZ2038
NSP MOTOR BOARD ASSY PWZ2040 PWZ2040 PWZ2040 PWZ2040
NSP SELECT BOARD ASSY PWZ2533 PWZ2533 PWZ2533 PWZ2533
NSP SERVO MECHANISM ASSY M PXA1595 PXA1595 PXA1595 PXA1595
NSP MECHANISM BOARD ASSY PWX1192 PWX1192 PWX1192 PWX1192
CN701 9607S–32F 9607S–30F
Remote Sensor SBX1785–51 Not used
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 Ω=56 ×101 =561................................................... RD1/4PU 561J
47k Ω=47 ×10 3=473 .................................................. RD1/4PU 473J
0.5 Ω=R50 ...................................................................... RN2H Â50K
1 Ω=1R0 ......................................................................... RS1P 1Â0K
Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62k Ω=562 ×10 1=5621 ........................................... RN1/4PC 5621F
7LIST OF WHOLE PCB ASSEMBLIES
FUNCTION BOARD ASSY
PWZ2769 and PWZ2768 are constructed the same except for the following:
Mark Remarks
Symbol and Description Part No.
PWZ2769 PWZ2768
7CONTRAST OF PCB ASSEMBLIES
MOTHER BOARD ASSY
PWM2156, PWM2155, PWM2153 and PWM2152 are constructed the same except for the following:
Part No.
PD-M427 /
WPWXJ PD-M427 /
RDXJ PD-M407 / WPWXJ PD-M407 / RDXJ
Mark Symbol and Description Remarks
IC401 PD2026B (L) Not used PD2026B (L) Not used
Q341 Not used 2SK246 Not used 2SK246
D341, D391–D394 Not used 1SS254 1SS254 1SS254
L391 Not used LAU1R0J LAU1R0J LAU1R0J
S5 Not used PSB1006 Not used PSB1006
Mark Symbol and Description Part No.
PWM2156 PWM2155 PWM2153 PWM2152 Remarks

PD-M427, PD-M407
19
C29, C461 CKCYF103Z50 Not used CKCYF103Z50 Not used
C312, C313 CKCYF103Z50 CEAS101M10 CKCYF103Z50 CEAS101M10
C341, C342 Not used CCCCH120J50 Not used CCCCH120J50
C393 Not used CCCSL101J50 CCCSL101J50 CCCSL101J50
C399 Not used Not used CKCYF103Z50 Not used
C403 CCCCH120J50 Not used CCCCH120J50 Not used
C404 CCCCH220J50 Not used CCCCH220J50 Not used
C413– C416 CFTXA104J50 Not used CFTXA104J50 Not used
C429, C430, C435– C438 CCCSL390J50 Not used CCCSL390J50 Not used
C431, C432 CEAT330M16 Not used CEAT330M16 Not used
C481, C482 Not used CCCSL390J50 Not used CCCSL390J50
R310– R312 RD1/4PU221J Not used RD1/4PU221J Not used
R341 Not used RD1/4PU271J Not used RD1/4PU271J
R342, R366 Not used RD1/4PU105J Not used RD1/4PU105J
R391 Not used PD1/4PU244J PD1/4PU244J PD1/4PU244J
R392 Not used RD1/4PU102J RD1/4PU102J RD1/4PU102J
R401 RD1/4PU102J Not used RD1/4PU102J Not used
R405– R410 RD1/4PU471J Not used RD1/4PU471J Not used
R411– R413 RD1/4PU221J Not used RD1/4PU221J Not used
R427– R430 RD1/4PU223J Not used RD1/4PU223J Not used
R435, R436 RD1/4PU163J Not used RD1/4PU163J Not used
R437, R438 RD1/4PU163J RD1/4PU473J RD1/4PU163J RD1/4PU473J
R439– R442 RD1/4PU433J RD1/4PU823J RD1/4PU433J RD1/4PU823J
R481, R482, R485, R486 Not used RD1/4PU223J Not used RD1/4PU223J
R487– R490 Not used RD1/4PU104J Not used RD1/4PU104J
JA391, JA392 Not used RKN1004 RKN1004 RKN1004
CN351 HLEM32S-1 HLEM32S-1 HLEM30S-1 HLEM30S-1
X341 ( 16.9344MHz ) Not used PSS1008 Not used PSS1008
X401 ( 16.9344MHz ) PSS1008 Not used PSS1008 Not used
MOTHER BOARD Assy
Mark No. Description Parts No. Mark No. Description Parts No.
7PARTS LIST FOR PD-M427/WPWXJ
MOTHER BOARD ASSY
SEMICONDUCTORS
IC151 CXA1782CQ
IC301 CXD2519Q
IC31, IC34 ICP–N10
IC201, IC202 LA6520
IC405 NJM4558D–D
IC401 PD2026B(L)
IC351 PD4836A
IC21 PQ05RR12
Q151 2SA854S
Q403, Q404 2SD2144S
Q152 DTA124ES
Q405 DTC124ES
D352 1SS254
D54 MTZJ18B
D359 MTZJ5.1B
D218 MTZJ6.2B
D11–D14, D52 S5688G
COILS AND FILTERS
L351 AXIAL INDUCTOR LAU100J
CAPACITORS
C181 CCCCH100D50
C403 CCCCH120J50
C404 CCCCH220J50
C383 CCCSL181J50
A
Mark Symbol and Description Part No.
PWM2156 PWM2155 PWM2153 PWM2152 Remarks

PD-M427, PD-M407
20
Mark No. Description Parts No. Mark No. Description Parts No.
C315 CCCSL221J50
C429, C430, C435, C436, C437 CCCSL390J50
C438 CCCSL390J50
C171, C175, C302, C311, C314 CEAS101M10
C316 CEAS101M10
C52 CEAS101M35
C26 CEAS102M16
C433, C434 CEAS220M25
C131– C133, C27 CEAS330M16
C25 CEAS332M16
C351 CEAS471M6R3
C169, C170, C356 CEAS4R7M50
C309 CEASR47M50
C431, C432 CEAT330M16
C413, C414, C415, C416 CFTXA104J50
C156, C161, C164, C168, C218 CGCYX103K25
C160 CGCYX333K25
C167 CGCYX472K25
C152, C307 CGCYX473K25
C157 CGCYX823K25
C163 CKCYB102K50
C176, C306, C441, C442 CKCYB152K50
C305 CKCYB222K50
C162 CKCYB332K50
C151 CKCYB682K50
C11, C13, C15, C16, C17 CKCYF103Z50
C29, C159, C205, C210, C215 CKCYF103Z50
C219, C301, C304, C310– C313 CKCYF103Z50
C353, C357, C461 CKCYF103Z50
C153– C155, C158 CQMA104J50
RESISTORS
VR153, VR155 (10k Ω) RCP1045
VR151, VR152, VR154 (22k Ω) RCP1046
VR156 (220k Ω) RCP1049
Other Resistors RD1/4PU&&&J
OTHERS
CN131 1mm CONNECTOR SLW16S–1C7
CN202 MT 4P CONNECTOR 173981–4
CN203 CONNECTOR 4P 4–173981–4
CN204 6P JUMPER CONNECTOR 52147–0610
CN351 32P FFC CONNECTOR HLEM32S–1
JA401 2P PIN JACK PKB1023
X401 XTAL RES(16.9344 MHz) PSS1008
TERMINAL RKC–061
CN201 CONNECTOR 6P RKP–533
X351 CERAMIC RES(4.19 MHz) VSS1014
FUNCTION BOARD ASSY
SEMICONDUCTOR
D701– D703 1SS133X
SWITCHES
S701– S710 PSG1006
OTHERS
CN701 FFC CONNECTOR 32P 9607S–32F
V701 FL INDICATOR TUBE PEL1084
REMOTE SENSOR SBX1785–51
SW BOARD ASSY
SEMICONDUCTOR
D801 PCX1019
SWITCH
S801 PSG1006
OTHER
J801 2mm JUMPER WIRE D20PWW0420E
LOADING BOARD ASSY
SWITCHES
S601, S602 DSG1016
OTHER
CN601 CONNECTOR 4P 4–173979–4
MOTOR BOARD ASSY
OTHER
CN602 6PJUMPER CONNECTOR 52151–0610
SELECT BOARD ASSY
SWITCHES
S604–S606 DSG1016
S603 PSG1010
MECHANISM BOARD ASSY
SWITCH
S610 DSG1016
OTHER
CN610 MT 4P CONNECTOR 173979–4
B
D
G
E
F
C