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 ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 1999
c
XC-L77
RRV2187
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST ............... 3
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ... 10
4. PCB CONNECTION DIAGRAM ......................... 24
5. PCB PARTS LIST ............................................... 36
6. ADJUSTMENT .................................................... 42
CONTENTS
7. GENERAL INFORMATION ................................ 45
7.1 DISASSEMBLY ............................................ 45
7.2 PARTS .......................................................... 48
7.2.1 IC ............................................................ 48
7.2.2 DISPLAY ................................................. 51
8. PANEL FACILITIES AND SPECIFICATIONS ....... 52
T ZZK AUG. 1999 Printed in Japan
STEREO CD RECEIVER
Type
Model
Power Requirement
Remarks
XC-L77
MYXK
AC220-230V
NVXK
AC230V
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
6
0
STANDBY/ON
PHONES
¶ This product is a system(s) component.
Be sure to connect it to the prescribed system component(s), otherwise damage may
result.
Component
Model
Service manual
Remarks
STEREO CD RECEIVER
XC-L77
RRV2187
This manual.
S-L9-LRW
RRV2176
SPEAKER SYSTEM
S-L9-A-LRW
RRV2176
S-L8-LRW
RRV2178
STEREO CASSETTE DECK
CT-L77
RRV2199
MINIDISC RECORDER
MJ-L77
RRV2201
2
XC-L77
WARNING!
Lithium batteries. Danger of explo-
sion. Replacement must be done by
qualified personnel and only by fol-
lowing the instructions given in the
service manual.
This warning is stated on the product or
in the operating instructions. When replac-
ing the lithium batteries, follow the note
below.
Dispose of the used battery promptly.
Keep away from children. Do not disas-
semble and do not dispose of in fire.
The battery used in this device may present
a fire or chemical hazard if mistreated. Do
not recharge,
disassemble,
heat above
100
°C or incinerate. Replace only with the
same Part Number. Use of another battery
may present a risk of fire or explosion.
Note: The lithium battery installation po-
sition is shown in the exploded views.
ADVARSEL!
Lithiumbatteri
- Eksplosionsfare ved
fejlagtig håndtering. Udskiftning må kun
ske med batteri af samme fabrikat og
type. Levér det brugte batteri tilbage til
leverandøren.
Denne advarsel or angivet på produktet
eller i brugsvejledningen. Ved udskiftning
af lithium batterierne følges nedenstående
anveisning.
Batterierne må kun udskiftes med batteri-
er af samme type og mærke.
1. SAFETY INFORMATION
LITHIUM BATTERY NOTICE
LABEL CHECK
NVXK type
MYXK type
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
1. Laser Interlock Mechanism
The loading position detect switch (in CD mechanism
assembly) is set to "CLMP ON(CD CLOSE)" (ON:low
level,OFF:high level) position, the system control
IC(IC5501) get the "CLMP" signal, and hand the laser
"LDON" signal to IC1101.
Then a laser diode can be lighted except when the level of
signal CLMP is low.
The interlock also does not function in the test mode
.
Laser diode oscillation will continue, if pin 1 of CXA1821M
(IC1101) on the RF UNIT is connected to GND, or pin 19 is
connected to low level (ON), or else the terminals of
Q1101 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 42.
Additional Laser Caution
3
XC-L77
MYXK type
only
1
19
18
NVXK type only
8
5
2
3
4
7
6
16
16
DISPLAY
UNIT
REMOTE
CONTROL
UNIT
11(1/2)
15
16
14
13
10(1/2)
1
11(1/2)
17
10(2/2)
16
9(2/2)
9(1/2)
MYXK type
only
MYXK type
only
NVXK type
only
1
AC Power Cord
See Contrast table (2)
2
AM Loop Antenna
ATB7007
3
FM Wire Antenna
ADH7005
4
Display unit connecting cord
ADE7014
NSP
5
Lithium Battery(CR2025)
VEM1009
6
Operating Instructions
See Contrast table (2)
7
Operating Instructions
See Contrast table (2)
8
Operating Instructions
See Contrast table (2)
9
Pad Front
AHA7260
10
Pad Rear
AHA7261
2.1 PACKING
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.
(1) PACKING PARTS LIST
Mark No.
Description
Part No.
(2) CONTRAST TABLE
XC-L77/MYXK and NVXK are constructed the same except for the following :
Mark No.
Symbol and Description
Part No.
Remarks
MYXK Type
NVXK Type
1
AC Power Cord
ADG7010
ADG7009
6
Operating Instructions (English)
Not used
ARB7195
7
Operating Instructions (Dutch/Swedish/Spanish/Portuguese)
ARC7250
Not used
8
Operating Instructions (English/French/German/Italian)
ARE7221
Not used
13
Packing Case
AHD7766
AHD7768
18
Sub packing
Not used
AHD7770
19
Fuse (T5A)
Not used
AEK7001
Mark No.
Description
Part No.
11
Pad Display
AHA7262
12
· · · · ·
13
Packing Case
See Contrast table (2)
14
Packing Sheet
Z23-007
15
Polyethylene Bag
Z21-038
NSP
16
Polyethylene Bag
CEG1116
NSP
17
Warranty Card
ARY7022
18
Sub Packing
See Contrast table (2)
19
Fuse (T5A)
See Contrast table (2)
4
XC-L77
A
K
H
I
B
C
D
J
I
G
A
F
E
K
H
J
G
E
D
B
C
F
53 (1/2)
58
22
22
53 (2/2)
54
57
56
41
41
41
41
45
48
44
22
30
35
×2
60
4
16
34
33
33
32
33
18
11
20
22
23
25
22
21
19
17
29
29
39
52
51
3
6
31
22
41
38
37
36
15
Refer to "2.3 CD MECHA (1/2)"
"2.4 CD MECHA (2/2)" .
27
43
47
41
59
56
10
9
5
87
1
2
13
14
55
57
49
12
41
46
41
42
50
61
28
25
24
26
41
40
62
2.2 EXTERIOR
5
XC-L77
1
FM/AM TUNER UNIT
AXQ7226
2
AMP UNIT
AWU7376
3
STBY SW UNIT
AWU7386
4
SECONDARY UNIT
AWU7378
5
PRIMARY UNIT
AWU7379
6
HP UNIT
AWU7382
7
MAIN UNIT
AWU7374
8
RF UNIT
AWU7380
9
SPEAKER UNIT
AWU7377
10
AUX UNIT
AWU7381
11
CONNECTOR UNIT
AWU7375
12
KEYR UNIT
AWU7383
13
KEYL UNIT
AWU7384
14
BLUE IND. UNIT
AWU7385
15
CD MECHA
KSL-2130CCM
16
Power transformer (T1)
ATS7256
17
DC Fan Motor
AXM7014
18
Fuse (FU1 : T1A)
AEK1054
NSP
19
Heat Sink
ANH7108
20
Screw
BBZ30P140FMC
21
Heat Plate
ANG7250
22
Screw
BBZ30P060FMC
23
Screw
BBZ30P300FMC
24
Bottom Base
AMA7013
25
Leg
AEB7090
26
Name Label
See Contrast table (2)
NSP
27
Bottom Plate
ANF7016
28
Jack (JA5551)
RKN1026
29
Screw
BBT30P060FZK
30
Sheet
AEE7034
31
Power Button Assy
AWL7049
32
TR Barrier
AEC7213
33
Screw
BBZ40P060FMC
NSP
34
Binder
ZCB-4772B
35
Power Barrier
AEC7196
36
Connector Assy
PG05KK-E20
37
Connector Assy
PG06KK-E20
38
16P Flat Flexible Cable/30V
ADD7185
NSP
39
Cord with Plug
DE010VF0
40
Screw
PDZ30P060FMC
41
Screw
VPZ30P080FZK
42
Connector Assy
PF03PP-Q20
43
Connector assy (J5101)
PG14KK-E07
44
Card Spacer
AEC7214
45
Rear Panel
ANC7826
46
Rear Cover
AAX7705
47
Screw
PCZ30P080FZK
48
Center Barrier
AEC7198
NSP
49
Top Plate
ANF7017
50
Push Rivet
AEC7221
51
Tray Panel
AAN7194
52
Tray Line
AAP7059
53
Top Panel Assy
AWL7050
54
Button Assy A (
6)
AWL7044
55
Button Assy B (
0)
AWL7045
56
Main Line
AAP7058
57
Front Line
AAP7066
58
CL Lens
AAX7704
59
Bonnet
AMA7015
60
Sub Barrier
AEC7197
NSP
61
Caution Label
See Contrast table (2)
NSP
62
Fuse Card
AXX7033
(1) EXTERIOR PARTS LIST
Mark No.
Description
Part No.
Mark No.
Description
Part No.
(2) CONTRAST TABLE
XC-L77/MYXK and NVXK are constructed the same except for the following :
Mark No.
Symbol and Description
Part No.
Remarks
MYXK Type
NVXK Type
26
Name Label
ARW7066
ARW7067
NSP
61
Caution Label
ARW1047
ARW1050