Pioneer VSX-423-K User manual

ORDER NO.
PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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
2013
2013 Printed in Japan
VSX-423-K
RRV4505
AV Receiver
VSX-423-K
VSX-423-S
VSX-523-K
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
VSX-423-K SYXEV8 AC 220 V to 230 V
VSX-423-S SYXEV8 AC 220 V to 230 V
VSX-423-K PWVXEV8 AC 220 V to 240 V
VSX-523-K PWXEV AC 220 V to 240 V
Model No. Order No. Remarks
VSX-523-K/CUXESM RRV4418
K-ZZZ NOV.

2VSX-423-K
12 3 4
A
B
C
D
E
F
12 3 4
1. CONTRAST OF MISCELLANEOUS PARTS
CONTRAST TABLE
VSX-423
VSX-523-K/CUXESM, VSX-423-K/SYXEV8, VSX-423-S/SYXEV8 and VSX-423-K/PWVXEV8 are constructed the same except
for the following:
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).
56 1
4 7 3
R 5 0
1R 0
RD1/4PU J
RD1/4PU J
RN2H K
RS1P K
56 x 10
1
47 x 10
3
R50
1R0
561
473
RN1/4PC F562 x 10
1
5621 5 26 1
Mark No. Symbol and Description VSX-523-K
/CUXESM
VSX-423-K
/SYXEV8
VSX-423-S
/SYXEV8
VSX-423-K
/PWVXEV8 Remarks
PCB ASSEMBLIES
NSP 1..PCB TTL ASSY MAIN 7025HK1211010-IL 7025HK1211V20 7025HK1211V30 7025HK1211V40
P48-1 2..MAIN Assy 7028073311010-IL 70280733110J0 70280733110J0 70280733110K0
P48-3 2..OPTCO Assy 7028073313010-IL 70280733130J0 70280733130J0 70280733130J0
P48-12 2..REG Assy 7028073312010-IL 70280733120J0 70280733120J0 70280733120J0
P48-13 2..WG Assy 7028073315010-IL 7028073315040 7028073315040 7028073315040
P48-14 2..G-L Assy 7028073316010-IL 7028073316040 7028073316040 7028073316040
P48-15 2..G-R Assy 7028073317010-IL 7028073317040 7028073317040 7028073317040
NSP 1..PCB TTL ASSY DMAIN 7025HK1211012-IL 7025HK1211V22 7025HK1211V32 7025HK1211V42
P48-2 2..D-MAIN Assy 7028073351010-IL 70280733510D0 70280733510D0 70280733510D0
NSP 1..PCB TTL ASSY FRONT 7025HK1211011-IL 7025HK1211V21 7025HK1211V31 7025HK1211V41
P48-4 2..FUSB Assy 7028073323010-IL 70280733230N0 70280733230N0 70280733230N0
P48-5 2..CONCT Assy 7028073325010-IL 7028073325040 7028073325040 7028073325040
P48-8 2..INSEL Assy 7028073324010-IL 7028073324040 7028073324040 7028073324040
P48-9 2..FRONT Assy 7028073321010-IL 70280733210N0 70280733210N0 70280733210N0
P48-10 2..HPMIC Assy 7028073322010-IL 70280733220N0 70280733220N0 70280733220N0
NSP 1..PCB TTL ASSY CPU 7025HK1211013-IL 7025HK1211V23 7025HK1211V33 7025HK1211V43
P48-6 2..CPU Assy 7028073331010-IL 70280733310J0 70280733310J0 70280733310K0
NSP 1..PCB TTL ASSY AMP5 7025HK1211014-IL 7025HK1211V24 7025HK1211V34 7025HK1211V44
P48-7 2..AMP5 Assy 7028073341010-IL 70280733410J0 70280733410J0 70280733410J0
NSP 1..PCB TTL ASSY SMPS 7025HK1211015-IL 7025HK1211V25 7025HK1211V35 7025HK1211V45
>P48-11 2..SMPS Assy 7028073361010-IL 70280733610T0 70280733610T0 70280733610U0
PACKING SECTION
P45-5 Quick Start Guide 5707000007800-IL 5707000008590S 5707000008590S 5707000008590S
P45-6 Operating Instructions (CD-ROM) 6517000001280-IL 6517000001570S 6517000001570S 6517000001570S
P45-7 Box, Gift 6007212370000-IL 60072123700F0S 60072123700G0S 60072123700H0S
NSP P45-10 Warranty Card ARY7172 ARY7158 ARY7158 ARY7158
>AC Power Cord Not used Not used Not used L068250100040-IL
EXTERIOR SECTION
>P48-16 Power Trans 8200960611280-IL 8200960611290-IL 8200960611290-IL 8200960611290-IL
>P48-17 Cord Assy L068125101710-IL L068250161710-IL L068250161710-IL Not used
P48-22 Pioneer Badge XAM3006 XAM3006 VAM1129 XAM3006
P48-23 Cabinet VSX-523 3008212076000-IL 3008212076000-IL 3008212076010-IL 3008212076000-IL
P48-24 Front Panel 3067215871001S 3067215871101S 3067215871200-IL 3067215871101S

3
VSX-423-K
56 7 8
56 7 8
A
B
C
D
E
F
Notes : The numbers in the remarks column correspond to the numbers on the “EXPLODED VIEWS”.
For PCB ASSEMBLIES, Refer to "CONTRAST OF PCB ASSEMBLIES".
VSX-523
VSX-523-K/CUXESM and VSX-523-K/PWXEV are constructed the same except for the following:
Notes : For PCB ASSEMBLIES, Refer to "CONTRAST OF PCB ASSEMBLIES".
P48-25 Back Chassis 3207214566000-IL 3207214566060S 3207214566070S 3207214566120S
P48-27 Foot 4000210391000-IL 4000210391000-IL 4007210391000-IL 4000210391000-IL
P48-36 Knob 5080212431000-IL 5080212431000-IL 5087212431100-IL 5080212431000-IL
P48-37 Button 5090213741100-IL 5090213741100-IL 5097213741000-IL 5090213741100-IL
P48-38 5 Key Button 5090214561000-IL 5090214561000-IL 5097214561100-IL 5090214561000-IL
Bushing Not used 2410040353010-IL 2410040353010-IL 2410040353010-IL No.53
>Socket,power AC Not used Not used Not used G430040560021-IL No.54
Mark No. Symbol and Description VSX-523-K
/CUXESM
VSX-423-K
/SYXEV8
VSX-423-S
/SYXEV8
VSX-423-K
/PWVXEV8 Remarks
Mark No. Symbol and Description VSX-523-K
/CUXESM
VSX-523-K
/PWXEV Remarks
PCB ASSEMBLIES
NSP 1..PCB TTL ASSY MAIN 7025HK1211010-IL 7025HK1211V60
P48-1 2..MAIN Assy 7028073311010-IL 70280733110M0
P48-3 2..OPTCO Assy 7028073313010-IL 70280733130J0
P48-12 2..REG Assy 7028073312010-IL 70280733120L0
P48-13 2..WG Assy 7028073315010-IL 7028073315040
P48-14 2..G-L Assy 7028073316010-IL 7028073316040
P48-15 2..G-R Assy 7028073317010-IL 7028073317040
NSP 1..PCB TTL ASSY DMAIN 7025HK1211012-IL 7025HK1211V62
P48-2 2..D-MAIN Assy 7028073351010-IL 70280733510D0
NSP 1..PCB TTL ASSY FRONT 7025HK1211011-IL 7025HK1211V61
P48-4 2..FUSB Assy 7028073323010-IL 70280733230N0
P48-5 2..CONCT Assy 7028073325010-IL 7028073325040
P48-8 2..INSEL Assy 7028073324010-IL 7028073324040
P48-9 2..FRONT Assy 7028073321010-IL 70280733210N0
P48-10 2..HPMIC Assy 7028073322010-IL 70280733220N0
NSP 1..PCB TTL ASSY CPU 7025HK1211013-IL 7025HK1211V63
P48-6 2..CPU Assy 7028073331010-IL 70280733310M0
NSP 1..PCB TTL ASSY AMP5 7025HK1211014-IL 7025HK1211V64
P48-7 2..AMP5 Assy 7028073341010-IL 70280733410J0
NSP 1..PCB TTL ASSY SMPS 7025HK1211015-IL 7025HK1211V65
>P48-11 2..SMPS Assy 7028073361010-IL 70280733610T0
PACKING SECTION
NSP P45-10 Warranty Card ARY7172 Not used
P45-5 Quick Start Guide 5707000007800-IL Not used
Operating Instructions (En) Not used 5707000008610S
P45-6 Operating Instructions (CD-ROM) 6517000001280-IL Not used
P45-7 Box, Gift VSX523 6007212370000-IL 60072123700M0S
EXTERIOR SECTION
>P48-16 Power Trans 8200960611280-IL 8200960611290-IL
>P48-17 Cord Assy L068125101710-IL L068250751710-IL
P48-24 Front Panel 3067215871001S 3067215871111S
P48-25 Back Chassis 523 3207214566000-IL 3207214566090S

4VSX-423-K
12 3 4
A
B
C
D
E
F
12 3 4
EXPLODED VIEWS
EXTERIOR SECTION (VSX-423-K)
CONTRAST OF PCB ASSEMBLIES
A
F MAIN ASSY
7028073311010-IL, 70280733110J0 and 70280733110K0 are constructed the same with the exception of some components,
including the following:
7028073311010-IL and 70280733110M0 are constructed the same with the exception of some components, including the
following:
The mounting positions of the additional parts are described in the circuit diagram and PCB diagram of the parent manual.
Note: This list is not complete. Only components that are available as service part are listed!
AF
Screw
CBZ30P080FTB
VSX-423-K/PWVXEV8 Only
Black
White
Mark Symbol and Description 7028073311010-IL 70280733110J0 70280733110K0 Remarks
IC401-IC403, IC406 J121458001010-IL J121458000050-IL J121458000050-IL
601 TUNER,FM/AM E903004100780-IL E903104100780-IL E903104100780-IL
X1200 CRYSTAL (14.32 MHz) E80014R318080-IL Not used Not used
X1200 CRYSTAL (17.734 MHz) Not used Not used E80017R734410-IL
X1201 CRYSTAL (17.734 MHz) Not used E80017R734410-IL Not used
R510, R587 C000033065520-IL C060033065060-IL C060033065060-IL
Mark Symbol and Description 7028073311010-IL 70280733110M0 Remarks
IC401-IC403, IC406 J121458001010-IL J121458000050-IL
X1201 CRYSTAL (17.734 MHz) Not used E80017R734410-IL
R510, R587 C000033065520-IL C060033065060-IL

5
VSX-423-K
56 7 8
56 7 8
A
B
C
D
E
F
B
F D-MAIN ASSY
7028073351010-IL and 70280733510D0 are constructed the same with the exception of some components, including the following:
Note: This list is not complete. Only components that are available as service part are listed!
C
F OPTCO ASSY
7028073313010-IL and 70280733130J0 are different and are NOT COMPATIBLE! Some components on these assy's are
different. Since these different components are not available as service part, they are not listed.
D
F FUSB ASSY
7028073323010-IL and 70280733230N0 are different and are NOT COMPATIBLE! Some components on these assy's are
different. Since these different components are not available as service part, they are not listed.
E
F CONCT ASSY
7028073325010-IL and 7028073325040 are different and are NOT COMPATIBLE! Some components on these assy's are
different. Since these different components are not available as service part, they are not listed.
F
F CPU ASSY
7028073331010-IL, 70280733310J0 and 70280733310K0 are constructed the same with the exception of some components,
including the following:
7028073331010-IL and 70280733310M0 are constructed the same with the exception of some components, including the
following:
Note: This list is not complete. Only components that are available as service part are listed!
G
F AMP5 ASSY
7028073341010-IL and 70280733410J0 are different and are NOT COMPATIBLE! Some components on these assy's are
different. Since these different components are not available as service part, they are not listed.
H
F INSEL ASSY
7028073324010-IL and 7028073324040 are different and are NOT COMPATIBLE! Some components on these assy's are
different. Since these different components are not available as service part, they are not listed.
I
F FRONT ASSY
7028073321010-IL and 70280733210N0 are constructed the same with the exception of some components, including the following:
Note: This list is not complete. Only components that are available as service part are listed!
J
F HPMIC ASSY
7028073322010-IL and 70280733220N0 are constructed the same with the exception of some components, including the following:
Note: This list is not complete. Only components that are available as service part are listed!
Mark Symbol and Description 7028073351010-IL 70280733510D0 Remarks
IC2001 Not Resisted 8952523000020-IL
IC2019 Not Resisted 8952523000030-IL
Q2026, Q2036, Q2040, Q2042 J543045010060-IL J543608000010-IL
Mark Symbol and Description 7028073331010-IL 70280733310J0 70280733310K0 Remarks
IC203 Not Resisted 8952523000010-IL 8952523000010-IL
Mark Symbol and Description 7028073331010-IL 70280733310M0 Remarks
IC203 Not Resisted 8952523000010-IL
Mark Symbol and Description 7028073321010-IL 70280733210N0 Remarks
IC701 J127163150020-IL J127197044010-IL
V701 DISPLAY,FLT K530126600011-IL K530122400010S
R779, R780 C060001063050-IL C0602R2063050-IL
Mark Symbol and Description 7028073322010-IL 70280733220N0 Remarks
IC902 J121458001010-IL J121458000050-IL

6VSX-423-K
12 3 4
A
B
C
D
E
F
12 3 4
K
F SMPS ASSY
7028073361010-IL, 70280733610T0 and 70280733610U0 are constructed the same with the exception of some components,
including the following:
The mounting positions of the additional parts are described in the circuit diagram and PCB diagram of the parent manual.
Note: This list is not complete. Only components that are available as service part are listed!
L
F REG ASSY
7028073312010-IL, 70280733120J0 and 70280733120L0 are different and are NOT COMPATIBLE! Some components on these
assy's are different. Since these different components are not available as service part, they are not listed.
WG ASSY
There is no service parts.
G-L ASSY
There is no service parts.
G-R ASSY
There is no service parts.
Mark Symbol and Description 7028073361010-IL 70280733610T0 70280733610U0 Remarks
>FU101 FUSE GLASS TUBE 20mm
(T8AL/250V)
N751508001160-IL Not used Not used
>FU101 FUSE GLASS TUBE 20mm
(T6.3AL/250V)
Not used N751506301160-IL N751506301160-IL
>CN9100 CN.WAFER 7.92mm L108396030010-IL L108396030010-IL Not used