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ORDER NO.
RRV4177
VSX-1026-K

AUDIO/VIDEO MULTI-CHANNEL RECEIVER


VSX-1026-K
VSX-926-K
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model Type Porew Requirement Remarks

VSX-1026-K CUXCN AC 120 V

VSX-926-K CUXCN AC 120 V




This service manual should be used together with the following manual(s).
Model No. Order No. Remarks

VSX-1021-K/UXCNCB RRV4176



For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.




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 2011
K-ZZZ MAY 2011 Printed in Japan
1 2 3 4

1. CONTRAST OF MISCELLANEOUS PARTS
NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
A 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.
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%).
56 x 101 561 RD1/4PU 5 6 1 J
47 x 103 473 RD1/4PU 4 7 3 J
R50 RN2H R 5 0 K
1R0 RS1P 1 R 0 K
B Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
562 x 101 5621 RN1/4PC 5 6 2 1 F




CONTRAST TABLE
VSX-1021-K/UXCNCB, VSX-1026-K/CUXCN and VSX-926-K/CUXCN are constructed the same except for the following:
Mark No. Symbol and Description VSX-1021-K/UXCNCB VSX-1026-K/CUXCN VSX-926-K/CUXCN Remarks
PCB ASSEMBLIES
NSP 1..MAIN ASSY 7025HK1009010-IL 7025HK1009060-IL 7025HK1010070-IL
P52-1 2..MAIN ASSY 70280702710J0-IL 70280702710K0-IL 70280702710J0-IL
C

NSP 1..D-MAIN ASSY 7025HK1009011-IL 7025HK1009061-IL 7025HK1010075-IL
P52-7 2..D-MAIN ASSY 7028070351010-IL 70280703510D0-IL 7028070351040-IL

NSP 1...FRONT ASSY 7025HK1009012-IL 7025HK1009062-IL 7025HK1010071-IL
P52-8 2..FRONT ASSY 7028070301010-IL 70280703010D0-IL 7028070301090-IL
P52-11 2..F-V ASSY 7028070304040-IL 7028070304030-IL 7028070304040-IL No. 68
P52-12 2..HP ASSY 7028070306010-IL 7028070306020-IL 7028070306010-IL

NSP 1..AUDIO ASSY 7025HK1009013-IL 7025HK1009063-IL 7025HK1010072-IL *1

NSP 1..IR ASSY 7025HK1009014-IL 7025HK1009064-IL 7025HK1010073-IL
D P52-17 2..BR ASSY 7028070324010-IL 7028070324010-IL 7028070324020-IL

NSP 1..F-USB ASSY 7025HK1009015-IL 7025HK1009065-IL 7025HK1010074-IL *2

NSP 1..VIDEO ASSY 7025HK1009018-IL 7025HK1009068-IL 7025HK1010077-IL
P52-19 2..VIDEO ASSY 7028070261010-IL 7028070261010-IL 7028070261020-IL

NSP 1..AMP7 ASSY 7025HK1009077-IL 7025HK1009067-IL 7025HK1010076-IL *3

NSP 1..F-HDMI ASSY Not used 7025HK1009066-IL Not used
2..F-HDMI ASSY Not used 7028070341010-IL Not used No. 69

E PACKING SECTION
P49-6 Operating Instructions (En/Es) 5707000004890-IL Not used Not used
P49-6 Operating Instructions (En/Frca) Not used 5707000004900-IL 5707000004900-IL
P49-7 CD-ROM (AVNavigator) 6517000000120-IL 6517000000130-IL 6517000000350-IL
P49-8 Box,Gift 6007211820000-IL 6007211820050-IL 60072118200E0-IL

EXTERIOR SECTION
P52-37 Back Chassis 3207213766000-IL 3207213766010-IL 3207213756000-IL
P52-38 Foot 4007210391000-IL 4000210391000-IL 4000210391000-IL
P52-47 F Input Sheet 1217211472000-IL 1217211162020-IL 1217211472000-IL
P52-48 Front Panel 3067215091030-IL 3067215111000-IL 3067215091020-IL
Front HDMI Shield Not used 4470212086000-IL Not used No. 70
F
HDMI Cable Not used ADX7732 Not used No. 71




2 VSX-1026-K
1 2 3 4
5 6 7 8

Notes : The numbers in the remarks column correspond to the numbers on the "EXPLODED VIEWS".
For PCB ASSEMBLIES, Refer to "CONTRAST OF PCB ASSEMBLIES", "PCB PARTS LIST", "2. SCHEMATIC DIAGRAM", and "3. PCB
CONNECTION DIAGRAM".
*1 : Although 7025HK1009013-IL, 7025HK1009063-IL and 7025HK1010072-IL are different in part number, they have the same service parts.
*2 : Although 7025HK1009015-IL, 7025HK1009065-IL and 7025HK1010074-IL are different in part number, they have the same service parts.
A
*3 : Although 7025HK1009077-IL, 7025HK1009067-IL and 7025HK1010076-IL are different in part number, they have the same service parts.



EXPLODED VIEWS
EXTERIOR SECTION




B




F
LF
T
C
VSX-1026-K
L

VSX-926-K
VF
VSX-1026-K




CONTRAST OF PCB ASSEMBLIES

C
D
F MAIN ASSY
70280702710J0-IL and 70280702710K0-IL are constructed the same except for the following:
Mark Symbol and Description 70280702710J0-IL 70280702710K0-IL Remarks
CN9010 CN,WIRE L002151050160-IL L002900020070-IL
CN9007 CN.WAFER 2.0mm L101200100510-IL L101200100310-IL



EF HP ASSY
7028070306010-IL, and 7028070306020-IL are constructed the same except for the following:
E
Mark Symbol and Description 7028070306010-IL 7028070306020-IL Remarks
CN721 CN,WIRE 2mm L002361042420-IL L002371040010-IL



KF VIDEO ASSY
7028070261010-IL and 7028070261020-IL are constructed the same except for the following:
Mark Symbol and Description 7028070261010-IL 7028070261020-IL Remarks
IC1007 PDC162A Not used
Q1012 J520015301210-IL Not used
Q1013 J522305200050-IL Not used
L1002 COIL,FILTER-INDUCTOR D330330700520-IL Not used F
X1003 CRYSTAL E80014R318080-IL Not used

JA1001 TER,RCA 9pin G607902AD132Y-IL G603610D0400Y-IL

VSX-1026-K 3
5 6 7 8
1 2 3 4




MF FRONT ASSY
7028070301010-IL, 70280703010D0-IL and 7028070301090-IL are constructed the same except for the following:
A
Mark Symbol and Description 7028070301010-IL 70280703010D0-IL 7028070301090-IL Remarks
CN3002 CN.WAFER 2.0mm Not used L101200100420-IL Not used
The mounting positions of the additional parts are described in the circuit diagram and PCB diagram of the parent manual.


RF BR ASSY
7028070324010-IL, and 7028070324020-IL are constructed the same except for the following:
Mark Symbol and Description 7028070324010-IL 7028070324020-IL Remarks
IC2802 J121456000080-IL Not used

B

SF D-MAIN ASSY
7028070351010-IL, 70280703510D0-IL and 7028070351040-IL are constructed the same except for the following:
Mark Symbol and Description 7028070351010-IL 70280703510D0-IL 7028070351040-IL Remarks
IC902, IC906 S-24CS02AFT S-24CS02AFT Not used
IC904, IC908 TC7MB3257FK TC7MB3257FK Not used
IC905 CXB1444R-K CXB1444R-K Not used
IC1802 AK4388ET AK4388ET Not used
IC1803 IDT6V60008DCG IDT6V60008DCG Not used

Q902, Q904 J522011400020-IL J522011400020-IL Not used
C Q903 UM6K1N UM6K1N Not used
D901, D903 DAN202U DAN202U Not used
L907 D340212561010-IL D340212561010-IL Not used
L1805, L1819, L1820 COIL,BEAD D340160851020-IL D340160851020-IL Not used

L1812 COIL,BEAD D340100561210-IL D340100561210-IL Not used
JA1801 2P PIN JACK G601206A0700Y-IL G601206A0700Y-IL Not used
JA906 CN.WAFER L109100190160-IL L109100190160-IL Not used
JA905 CN.WAFER Not used L109100190170-IL Not used
JA1802 TER,RCA 1pin Not used Not used G60011703000Y-IL
The mounting positions of the additional parts are described in the circuit diagram and PCB diagram of the parent manual.

D


PCB PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
JA 1004 CN.WAFER L109100190170-IL
JA 7501 CN.WAFER L109100190060-IL
LF
MISCELLANEOUS
F-V ASSY (VSX-1026-K)
CN 3005 CN,WIRE 2MM L002161040130-IL
J 3652 CN,WIRE 2MM L002431030040-IL
JA 3656 TER,RCA 1PIN G600101HG000Y-IL


E

VF F-HDMI ASSY (VSX-1026-K)
SEMICONDUCTORS
IC 7501 S-24CS02AFT
IC 7502 TC7MB3257FK
IC 7503 CXB1443R
> IC 7504 J126111700041-IL
Q 7501-7503 J522104411210-IL

D 7501,7502 RB521S-30
D 7551 K005041480030-IL

F MISCELLANEOUS
L 7510 CHIP BEAD D340212561010-IL
L 7512-7515,7521,7601 CHIP BEAD D340160811210-IL
L 7519,7520 CHIP BEAD D340100561020-IL

4 VSX-1026-K
1 2 3 4
5 6 7 8

2. SCHEMATIC DIAGRAM
2.1 F-V ASSY (VSX-1026-K)
A




L F F-V ASSY
(7028070304030-IL)



B




CP7
C
EXCEPT VSX-1021(UXCNCB)



C


LF LF




D




E




F




VSX-1026-K 5
5 6 7 8
1 2 3 4

2.2 F-HDMI ASSY (VSX-1026-K)

A
V F F-HDMI ASSY
(7028070341010-IL)




B




C




D




E




F



VF
6 VSX-1026-K
1 2 3 4
5 6 7 8




A




B




JA905
S
C




D




M CP3002

E




F



VF
VSX-1026-K 7
5 6 7 8
1 2 3 4

3. PCB CONNECTION DIAGRAM
3.1 F-V and F-HDMI ASSYS (VSX-1026-K)
A
SIDE A SIDE A



M CP3002

L F F-V ASSY V F F-HDMI ASSY CN3005



B
J3652


CP7




JACK1004



JA905
C




S
C




SIDE B SIDE B
D


L F F-V ASSY V F F-HDMI ASSY JACK1004
J3652




E




CN3005




F



LF VF LF VF
8 VSX-1026-K
1 2 3 4