ORDER NO.
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 2008
2008 Printed in Japan
SC-LX90
RRV3780
AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER
SC-LX90
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
This service manual should be used together with the following manual(s):
For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.
Model
Type
Power Requirement
Remarks
SC-LX90
WYPWXJ5
AC 220 V to 240 V
SC-LX90
WVLXJ5
AC 220 V to 240 V
SC-LX90
LFXJ
AC 110 V
Model
Order No.
Remarks
SC-09TX/KUXJ/CA
RRV3708
BLOCK DIAGRAM, DIAGNOSIS, EXPLODED VIEWS, etc.
SC-09TX/KUXJ/CA
RRV3711
SCHEMATIC DIAGRAM, PCB CONNECTION DIAGRAM and PCB PARTS LIST.
T-ZZV JUNE.
2
SC-LX90
1
2
3
4
A
B
C
D
E
F
1
2
3
4
CONTENTS
1. EXPLODED VIEWS AND PARTS LIST.................................................................................................................................4
1.1 PACKING SECTION .......................................................................................................................................................4
1.2 EXTERIOR SECTION.....................................................................................................................................................6
1.3 FRONT SECTION...........................................................................................................................................................8
1.4 MAIN CHASSIS SECTION (1/2) ...................................................................................................................................10
1.5 MAIN CHASSIS SECTION (2/2) ...................................................................................................................................12
1.6 REAR SECTION (1/2)...................................................................................................................................................14
1.7 REAR SECTION (2/2)...................................................................................................................................................16
1.8 POWER AMPLIFIER SECTION....................................................................................................................................18
2. CONTRAST OF PCB ASSEMBLIES...................................................................................................................................20
3. SCHEMATIC DIAGRAM ......................................................................................................................................................24
3.1 A-AUDIO ASSY.............................................................................................................................................................24
3.2 FRONT INPUT ASSY ...................................................................................................................................................25
3.3 HDMI ASSY (1/8) ..........................................................................................................................................................26
3.4 HDMI ASSY (2/8) ..........................................................................................................................................................30
3.5 HDMI ASSY (3/8) ..........................................................................................................................................................34
3.6 HDMI ASSY (4/8) ..........................................................................................................................................................38
3.7 HDMI ASSY (5/8) ..........................................................................................................................................................40
3.8 HDMI ASSY (6/8) ..........................................................................................................................................................42
3.9 HDMI ASSY (7/8) ..........................................................................................................................................................46
3.10 HDMI ASSY (8/8) ........................................................................................................................................................48
4. PCB CONNECTION DIAGRAM ..........................................................................................................................................50
4.1 HDMI ASSY ..................................................................................................................................................................50
4.2 PFC ASSY ....................................................................................................................................................................54
3
SC-LX90
5
6
7
8
5
6
7
8
A
B
C
D
E
F
4
SC-LX90
1
2
3
4
A
B
C
D
E
F
1
2
3
4
1. EXPLODED VIEWS AND PARTS LIST
1.1 PACKING SECTION
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.)
Nos. indicate the pages and Nos. in the service manual for the base model.
NOTES:
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%).
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5 6 1
4 7 3
R 5 0
1 R 0
RD1/4PU
J
RD1/4PU
J
RN2H
K
RS1P
K
56 x 101
47 x 103
R50
1R0
561
473
RN1/4PC
F
562 x 101
5621
5
2
6
1
SC-LX90/WVLXJ5 and SC-LX90/LFXJ
ONLY
SC-LX90/WVLXJ5 and
SC-LX90/LFXJ ONLY
SC-LX90/WYPWXJ5 ONLY
SC-LX90/
WYPWXJ5
ONLY
1/2
1/2
2/2
2/2
5
SC-LX90
5
6
7
8
5
6
7
8
A
B
C
D
E
F
(1) PACKING SECTION PARTS LIST
(2) CONTRAST TABLE
SC-LX90/WYPWXJ5, SC-LX90/WVLXJ5 and SC-LX90/LFXJ are constructed the same except for the following:
Mark No.
Description
Part No.
>
1
Power Cord
See Contrast table (2)
2
iPod Control Cable (30P)
ADE7126
3
Setup Microphone (5m)
APM7007
4
Remote Control Unit
AXD7467
5
Battery Cover
AZN8031
NSP 6
Dry Cell Battery (R6P,AA)
XEX3004
7
Wiping Cloth
AED1285
8
Operating Instructions (English)
See Contrast table (2)
9
Operating Instructions (Dutch)
See Contrast table (2)
10
Operating Instructions (French)
See Contrast table (2)
11
Operating Instructions (German) See Contrast table (2)
12
Operating Instructions (Italian)
See Contrast table (2)
13
Operating Instructions (Russian) See Contrast table (2)
14
Operating Instructions (Spanish) See Contrast table (2)
15
Operating Instructions (Chinese) See Contrast table (2)
16
Caution Sheet SP,E
See Contrast table (2)
NSP 17
Warranty Card
See Contrast table (2)
NSP 18
Polyethylene Bag
AHG7117
(0.06 x 230 x 340)
19
Top Pad TER
AHA7460
20
Bottom Pad TER
AHA7461
21
Spacer TER A
AHB7177
22
Accessory Box TER
AHB7153
23
Packing Case TER
See Contrast table (2)
24
Packing Sheet TER
AHG7133
25
Packing Sheet TER NF
AHG7136
26
Handle Cover
AHX7034
27
iPod Caution Card
ARM7111
NSP 28
Polyethylene Bag
See Contrast table (2)
29
Errata TER WY
See Contrast table (2)
30
EU Battery Caution
See Contrast table (2)
Mark No.
Description
Part No.
Mark No.
Symbol and Description
SC-LX90/
WYPWXJ5
SC-LX90/
WVLXJ5
SC-LX90/
LFXJ
>
1
Power Cord
ADG7062
ADG7104
XDG3050
8
Operating Instructions (English)
ARB7415
ARB7415
Not used
9
Operating Instructions (Dutch)
ARC7874
Not used
Not used
10 Operating Instructions (French)
ARC7872
Not used
Not used
11 Operating Instructions (German)
ARC7871
Not used
Not used
12 Operating Instructions (Italian)
ARC7870
Not used
Not used
13 Operating Instructions (Russian)
ARC7875
Not used
Not used
14 Operating Instructions (Spanish)
ARC7873
Not used
Not used
15 Operating Instructions (Chinese)
Not used
Not used
ARC7876
16 Caution Sheet SP,E
ARM7056
ARM7056
Not used
NSP
17 Warranty Card
ARY7128
ARY7128
Not used
23 Packing Case TER
AHD8620
AHD8626
AHD8629
NSP
28 Polyethylene Bag
AHG7132
Not used
Not used
29 Errata TER WY
ARX7113
ARX7113
Not used
30 EU Battery Caution
ARM7120
ARM7120
Not used