ORDER NO.
PIONEER 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 EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2000
c
XC-LA21
RRV2392
T IZK OCT. 2000 Printed in Japan
STEREO CD TUNER
1. SAFETY INFORMATION ....................................... 2
2. EXPLODED VIEWS AND PARTS LIST ................. 4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..... 8
4. PCB CONNECTION DIAGRAM ........................... 20
5. PCB PARTS LIST ................................................ 30
6. ADJUSTMENT ..................................................... 33
CONTENTS
7. GENERAL INFORMATION ................................ 37
7.1 DIAGNOSIS .................................................. 37
7.1.1 TROUBLE SHOOTING ........................ 37
7.1.2 DISASSEMBLY/ASSEMBLY ................ 41
7.2 PARTS .......................................................... 49
7.2.1 IC .......................................................... 49
7.2.2 DISPLAY ............................................... 51
7.3 REMOTE CONTROL UNIT .......................... 52
8. PANEL FACILITIES AND SPECIFICATIONS .... 54
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Component
Model
Service manual
Remarks
COMPACT MINI COMPONENT
X-LA21
RRV2370
STEREO CD TUNER
XC-LA21
RRV2392
This manual.
STEREO POWER AMPLIFIER
M-LA21
RRV2393
SPEAKER SYSTEM
S-LA21
RRV2394
¶ System Component Table
LA21
3 COMPACT DISC MULTI CHANGER
STEREO CD TUNER
Type
Model
Power Requirement
The voltage can be converted by
XC-LA21
the following method.
DBDXCN
AC110-127V/220-230/240V
With the voltage selector
DDXCN/AR
AC110-127V/220-230/240V
With the voltage selector
XC-LA21
2
Additional Laser Caution
1. Laser Interlock Mechanism
The position of the switch for detecting loading state is
detected by the system microprocessor, and the design
prevents laser diode oscillation when the switch is pressed
physically.
Thus, the interlock will no longer function if the switch is released
physically and deliberatery.
Laser diode oscillation will continue, if pin 46 of TA2065F (IC2)
on the CD SERVO PCB ASSY is connected to GND, or else
the terminals of Q1 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.
LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 5 mW
WAVELENGTH: 760 - 800 nm
IMPORTANT
THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS 1.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
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.
3
XC-LA21
2.1 PACKING (X-LA21)
2. EXPLODED VIEWS AND 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.
· Screws adjacent to mark on the product are used for disassembly.
SYSTEM
SPEAKER
REAR
XC-LA21
REAR
M-LA21
FRONT
FRONT
FRONT
FRONT
TOP SIDE
TOP SIDE
13
3
1
5
14
7
4
11
17
15
16
19
20
DDXCN/AR Only
9(2/2)
10
10
9(1/2)
8(2/2)
12
8(1/2)
18
18
11
8(2/2)
12
12
8(1/2)
6
2
(1) PACKING PARTS LIST
Mark No.
Description
Part No.
1
AM Loop Antenna
ANT-PMT1E-AL
2
Remote Control Unit
AXD7289
3
RCA Audio Cable
122003220100
NSP
4
`AAA' Size R03 Batteries
130115004000
5
FM Wire Antenna
132030001001
6
Power-cord Plug Conversion Adaptor
138011722000
7
Battery Door
500RC4603070
8
Polyform Unit
800PMT190001
9
Polyfoam (Speaker)
800PMT390000
10
Poly Foam Sheet (C) SP
801999000002
11
Polythenefoam Sheet
801999000005
NSP
12
PE Polybag (AC Cord)
805032115000
NSP
13
PE Polybag (Remocon)
805035105000
NSP
14
PE Polybag (Antenna)
805070100000
NSP
15
PE Polybag (I Book)
805085140000
16
Operating Instructions
811PMT391011
(English/Spanish/Chinese)
17
Carton
See Contrast table (2)
18
Corrugate Card
815001405213
19
Additional Sheet
810PMT395010
20
Correction Sheet
See Contrast table (2)
(2) CONTRAST TABLE
X-LA21/DBDXCN and DDXCN/AR are constructed the same except for the following :
Part No.
Mark No.
Symbol and Description
X-LA21
X-LA21
Remarks
/DBDXCN
/DDXCN/AR
17
Carton
813PMT393020
813PMT393010
20
Correction Sheet
Not used
810PMT395020
4
XC-LA21
2.2 EXTERIOR SECTION
G
F
E
B
J
D
C
D
C
A
H
G
E
F
K
K
H
A
B
J
8
34
87
71
5
27
7
2
7
15
64
32
20
8
44
28
31
8
56
15
51
59
1
8
2
2
8
14
49
8
16
53
2
8
13
6
15
50
62
15
6
2
8
16
48
35
37
8
47
12
8
58
77
9
8
75
74
46
76
19
16
9
73
80
45
79
81
82
17
60
8
41
10
40
85
52
33
Refer to section
"2.3 CD MECHA.
SECTION".
6
6
39
18
26,61
29
8
8
16
36
70
89
69
65
84
44
93
22
55
91
92
94
99
21
67
95
97
24
42
43
23
8
78
90
25
68
98
38
88
63
F
A
G
B
E
C
D
16
96
62
16
96
DDXCN/AR
Only
DDXCN/AR
Only
5
XC-LA21
(1) EXTERIOR SECTION PARTS LIST
Mark No.
Description
Part No.
1
AUDIO Assy
PMT101000210
2
Screw
BBZ30P060FMC
3
· · · · · ·
4
· · · · · ·
5
Screw
BBZ40P060FMC
6
Screw
BPZ20P050FMC
7
Screw
BPZ26P080FMC
8
Screw
BPZ30P100FNI
9
Screw
CBZ30P060FMC
10
CD Assy
CD--PMT1E
11
· · · · · ·
12
DISPLAY/CTL Assy
PMT101000041
13
RECT ASSY
PMT1LA100061
14
AUX Assy
PMT1LA100091
15
Screw
KBZ30P040FMC
16
Screw
KBZ30P060FNI
17
CD DOOR Assy
PMT3CDDR-DB
18
TRANS Assy
PMT1LA100071
19
S-Assy PMT3 FP01
SUBPMT3CDFP
20
STD. TUNER Assy
TUN-PMT1E-DL
21
FFC Cable 16Pin L100
040160100101
22
FFC Cable 16Pin L260
040160260100
23
FFC Cable 17Pin L100
040170100100
24
FFC Cable 24Pin L200
040240200130
25
FFC Cable 30Pin L400
040300400100
26
STANDBY TRANSFORMER
1233D4828140
27
Power TF EI35 11-24V
1231D3513140
28
Micro Fuse 251001
124010010002
29
Fuse (500mA/250V)
124005020002
30
· · · · · ·
31
Micro Fuse #25103.5
124035010000
32
AC Cord
See Contrast table (2)
33
CD MECHA,CMCJ
153000117000
34
Top Panel
500PMT148002
35
Direct Access Knob Lens
500PMT111000
36
Back Cover
500PMT183000
37
Power Standby Lens
500PMT129000
38
Fuse Insulation Cap
500623200000
39
CD Base Adaptor R
503PMT125000
40
CD Base Adaptor L
503PMT126000
41
Servo PCB Bracket
505PMT114000
42
FL Bracket
505PMT134000
43
LED Bracket
505PMT135000
44
PCB Mounting Bracket
505PMT136000
45
Volume Knob
510PMT328001
46
Clock Control Knob
510PMT108002
47
Direct Access Knob Set
510PMT109020
48
Side Panel-L
600PMT117002
49
Side Panel-R
600PMT118002
NSP
50
Bottom Tray
600PMT121000
51
Transformer Bracket
605PMT122000
52
FCC Cable HLD
605PMT142000
53
Cable Holder
605PMT143000
54
· · · · · ·
55
Heat Sink
613PMT131000
56
CD Shield Plate
650PMT139000
57
· · · · · ·
58
Display Filter Plate
650PMT147002
59
PC Sheet
650PMT149000
60
Transport Stopper PL
650PMT197010
61
Shielding Plate
650277225000
62
Rubber Foot
700PMT384000
63
Capacitor Boot
700PMT150000
64
Bushing
700PMT156000
65
Cable/Plastic Tie
727000100000
66
· · · · · ·
NSP
67
Trans. Stopper Label
809PMT194021
68
AC Cord Label
See Contrast table (2)
69
Voltage Label
See Contrast table (2)
70
Warning Label
See Contrast table (2)
71
Back Label
See Contrast table (2)
72
· · · · · ·
NSP
73
Front Panel
500PMT101002
NSP
74
GND. Copper Plate C
650PMT152000
NSP
75
GND. Copper Plate D
650PMT153000
NSP
76
GND. Copper Plate E
650PMT155000
NSP
77
Control Panel Plate
650PMT116020
NSP
78
Front Cover
600PMT160010
NSP
79
Display Lens
500PMT106020
NSP
80
Illuminated Ring
509PMT105000
NSP
81
CD Door
500PMT102002
NSP
82
CD Door Cover
600PMT120020
83
· · · · · ·
84
PCB Insulation Sheet
650PMT157000
85
CD Caution Label
See Contrast table (2)
86
· · · · · ·
87
Voltage Sel. Cover
500PMT110002
88
Voltage Sel. Knob
510PMT112002
NSP
89
Serial Label
809000009000
90
Tube AWG5 D4.72 L70
728000047L07
91
Tube AWG5 D4.72 L90
728000047L09
92
Tube AWG1 D7.35 L120
728000073L12
93
Tube AWG1 D7.35 L160
728000073L16
94
Tube AWG1 D7.35 L15
728000073L15
95
Volume Chrome Ring
509PMT330001
96
Foot Stand
509PMT329000
NSP
97
GND. Copper Plate A
650PMT140000
NSP
98
GND. Copper Plate B
650PMT141000
99
Ferrite Core
032219180000
Mark No.
Description
Part No.
(2) CONTRAST TABLE
XC-LA21/DBDXCN and DDXCN/AR are constructed the same except for the following :
Part No.
Mark No.
Symbol and Description
XC-LA21
XC-LA21
Remarks
/DBDXCN
/DDXCN/AR
32
AC Cord
134250220000
134220120016
68
AC Cord Label
Not used
809PMT394100
69
Voltage Label
Not used
809PMT394080
70
Warning Label
809PMT396110
809PMT394010
71
Back Label
809PMT396030
809PMT396050
85
CD Caution Label
809PMT194070
809PMT394090