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ORDER NO.

RRV2117

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-21
Type
KUXJI/CA

Refer to the service manual RRV2104 for VSX-D608/KUXJI.
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model VSX-21
AC120V

Power Requirement

Remarks

PIONEER ELECTRONIC 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 ELECTRONIC CORPORATION 1999
T ZZK APR. 1999 Printed in Japan

VSX-21

1. CONTRAST OF MISCELLANEOUS PARTS
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 product are used for disassembly. Reference 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%). 561 560 56 x 101 RD1/4PU 5 6 1 J 47 x 103 473 47k RD1/4PU 4 7 3 J R50 0.5 RN2H R 5 0 K 1R0 1 RS1P 1 R 0 K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5.62k 562 x 101 5621 RN1/4PC 5 6 2 1 F

CONTRAST TABLE
VSX-21/KUXJI/CA and VSX-D608/KUXJI are constructed the same except for the following :
Part No. Ref. No. Mark Symbol and Description
ASSEMBLIES INPUT Assy FRONT Assy REAR SP Assy AMP Assy AMP Assy EXCELLENT Assy REAR SP Assy FRONT LARGE Assy PACKING Operating Instructions (English) Warranty Card Packing Case EXTERIOR SECTION Power Transformer (T1) Rear Panel Display Window Front Panel Insulator Fuse (FU701: 10A) DOC Label

VSX-D608 /KUXJI
AWK7472 AWX7215 AWX7250 AWK7480 AWX7223 AWK7485 Not used AWX7288

VSX-21 /KUXJI/CA
AWK7504 AWX7335 Not used AWK7505 AWX7336 AWK7503 AWX7338 AWX7337

Remarks

NSP P5- 2 P5- 4 NSP NSP P5- 5 NSP P5- 4 P5-16

P3- 3 P3- 7 P3-13

NSP

ARB7157 ARY7023 AHD7692

ARB7181 ARY7007 AHD7700

P5-18 P5-31 P5-46 P5-47 P5-70 P5-71

ATS7234 ANC7724 AAK7606 AMB7552 AMR7198 Not used Not used

ATS7235 ANC7769 AAK7632 AMB7585 PNW2766 REK1087 VRW1726 Refer to KCXJI type No.1

Notes: The numbers in the remarks column correspond to the numbers on "EXPLODED VIEWS". For ASSEMBLIES, refer to "CONTRAST OF PCB ASSEMBLIES", "2. SCHEMATIC DIAGRAM" and "3. PCB CONNECTION DIAGRAM".

EXTERIOR SECTION

EXPLODED VIEWS
Bonnet Case 1

2

VSX-21

CONTRAST OF PCB ASSEMBLIES

B F FRONT ASSY
AWX7335 and AWX7215 are constructed the same except for the following :
Mark Symbol and Description
D222, D223 S215

Part No. AWX7215
Not used Not used

AWX7335
1SS355 ASG1034

Remarks

D F AMP ASSY
AWX7336 and AWX7223 are constructed the same except for the following :
Mark Symbol and Description
C1432, C1433 R1436, R1437 H751, H752

Part No. AWX7223
CFTYA104J50 RS1LMF4R7J Not used

AWX7336
Not used Not used AKR1004

Remarks

*

* : Refer to VSX-D608/KCXJI in the service manual RRV2104.

G F FRONT LARGE ASSY
AWX7337 and AWX7288 are constructed the same except for the following :
Mark Symbol and Description
R633, R634 R635, R636 CN628 631 PCB BINDER

Part No. AWX7288
Not used Not used Not used Not used

AWX7337
RD1/4PU223J RD1/4PU122J AKB7001 VEF1040

Remarks

PCB PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.

H F REAR SP ASSY
SEMICONDUCTORS
Q652 Q651 D651, D652 2SC1740S KRA101M 1SS133

RESISTORS
R652 R655, R661, R662 R653, R654, R656, R663, R664 R657R659 R651 Other Resistors RD1/4LMF4R7J RD1/4PU122J RD1/4PU223J RS1LMF4R7J RS2LMF271J RS1/10S J

COIL
L651 AF CHOKE COIL ATH1004

OTHERS RELAYS
RY651, RY652 ASR7001 JA653 CN652 CN651 3P PIN JACK AKB7101 SPEAKER TERMINAL 6P AKE7037 12P PLUG AKM7007

CAPACITOR
C651, C657, C658 CFTYA104J50

3

1

2

3

4

VSX-21

2. SCHEMATIC DIAGRAM
A Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST"

2.1 FRONT ASSY

B F FRONT ASSY
(AWX7335)

B

C

FRONT ASSY S201 : SIGNAL SELECT S202 : MIDNIGHT S203 : DIGITAL NR S205 : BASS S206 : + S207 : TREBLE S208 : + S209 : SPEAKERS S210 : LOUDNESS S211 : DIRECT S212 : TAPE2 MONITOR S213 : / DTS S214 : DSP MODE S215 : RE-EQ S217 : DVD/LD S218 : TV/SAT S219 : CD S220 : FM/AM S221 : VCR 1 S222 : VCR 2 S223 : MD/TAPE1 S224 : VIDEO S229 : CLASS S230 : MEMORY S231 : MPX MODE S233 : STATION/FREQUENCY S234 : + S235 : TUNING SELECT S250 : MASTER VOLUME

D

4

BF
1

2

3

4

1

2

3

4

VSX-21

2.2 FRONT LARGE and REAR SP ASSEMBLIES
A

G F FRONT LARGE ASSY
(AWX7337)
1.2k 1.2k

0.1

0.1 AKE7036

B

E CN687

22k 1.2k

JA653 (1/2) AKB7101

C

F CN692

0.1
CN652 AKE7037

1.2k 1.2k

JA653 (2/2) AKB7101

H F REAR SP ASSY
(AWX7338)

D

1

2

3

GF HF
4

5

1

2

3

4

VSX-21

3. PCB CONNECTION DIAGRAM
A
NOTE FOR PCB DIAGRAMS:
1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below.
Symbol in PCB Diagrams Symbol in Schematic Diagrams Part Name

3. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 4. Viewpoint of PCB diagrams

Capacitor
B B C E B B C E D D G S G S D G S Field effect transistor C E B C E Transistor with resistor C E B C E Transistor

Connector

SIDE A

P.C.Board

Chip Part

SIDE B

Resistor array

B
3-terminal regulator

3.1 REAR SP ASSY

H F REAR SP ASSY

C

Q651 Q652

D

(ANP7268-B)

SIDE A F CN692
6

HF
1

2

3

4