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ORDER NO.

RRV2567

AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER

VSA-AX10
VSX-AX10
Type HY SDLBPW Model VSA-AX10 VSX-AX10 AC220-230V AC110/120-127V/220V/230-240V With the voltage selector Power Requirement

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
The voltage can be converted by the following method.

¶ This service manual should be used together with the following manual(s):
Model No.
VSX-49TX/KU/CA

Order No.
RRV2523

Remarks

CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS ........ 2 2. PCB CONNECTION DIAGRAM .......................... 11 3. SCHEMATIC DIAGRAM ..................................... 13 4. REMOTE CONTROL UNIT ................................. 30 PIONEER ELECTRONIC 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

c PIONEER ELECTRONIC CORPORATION 2002
T ­ ZZR JAN. 2002 Printed in Japan

VSA-AX10, VSX-AX10

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

7 CONTRAST OF TABLE
VSX-49TX/KU/CA, VSA-AX10/HY and VSX-AX10/SDLBPW are constructed the same except for the following:
Part No. Ref. No. Mark Symbol and Description VSX-49TX /KU/CA
AWM7562 AWX7890 AWK7712 AWX7852 AWX7834 AWX7848 AWX7844 AWX7846 Not used Not used AWQ7010 AWX7952 AWX7953 AWX7942 AWX7938 AWM7558 AWX7878 AWX7864 AXQ7237

VSA-AX10 /HY
AWM7567 AWX7895 AWK7717 AWX7856 AWX7837 AWX7850 AWX7845 AWX7847 Not used AWX8061 AWQ7012 AWX7951 AWX7955 AWX7944 AWX7940 AWM7560 AWX7880 AWX7866 Not used

VSX-AX10 /SDLBPW
AWM7564 AWX7892 AWM7714 AWX7854 AWX7835 AWX7850 AWX7845 AWX7847 AWX7842 AWX8061 AWQ7012 AWX7951 AWX7955 AWX7944 AWX7940 AWM7659 AWX7873 AWX7866 AXQ7238

Remarks

PCB ASSEMBLIES
NSP P7- 1 NSP P9- 2 P9- 3 P9- 4 P11- 6 P11- 7 VR & MOTHER ASSY MOTHER ASSY PS & SP ASSY SP (B) ASSY AC PRIMARY ASSY SP (A) ASSY POSISTER (L) ASSY POSISTER (R) ASSY VOLTAGE SEL ASSY POSISTER(MT) ASSY VIDEO ASSY V-CONVERT ASSY COMPONENT ASSY COMPOSITE ASSY A/V I/O ASSY A/D & CONTROL ASSY ANALOG IN & A/D ASSY DISPLAY ASSY FM/AM TUNER Module

No. 1 No. 2

NSP P9- 6 P9- 7 P9- 9 P9-10 NSP P9-12 P13- 1 P9- 1

PACKING SECTION
P3- 1 P3- 2 P3- 3 P3- 4 P3- 7 AC Power Cord FM Wire Antenna AM Loop Antenna Remote Control Unit Operating Instructions (English) Operating Instructions(German) Operating Instructions(French) Operating Instructions(Dutch) Operating Instructions(Spanish) Operating Instructions(Chinese) P3- 9 P3-14 NSP Warranty Card Packing Case Caution 220V Label AC Plug Adapter ADG7061 ADH7010 ATB7009 AXD7295 ARB7249 Not used Not used Not used Not used Not used ARY1026 AHD8029 Not used Not used ADG7062 Not used Not used AXD7296 AHA7252 ARC7345 ARC7346 ARC7348 Not used Not used ARY7022 AHD8027 Not used Not used ADG7065 ADH7010 ATB7009 AXD7298 AHA7251 Not used Not used Not used ARC7344 ARC7343 Not used AHD8030 ARR1003 AKX7011 No. 3 No. 4 No. 5 No. 6 No. 7

No. 8 No. 9 Accessories

2

VSA-AX10, VSX-AX10

Part No. Ref. No. Mark Symbol and Description VSX-49TX /KU/CA
ANE7298 AAH7081 AAX7876 FBT40T080FZK ARW7148 BBZ30P080FCC ARW7050 BBT30P100FCC VRW-548 Not used Not used ADX7369 Not used

VSA-AX10 /HY
ANE7300 AAH7080 Not used RBA1099 Not used IBZ30T080FCC Not used ABA1050 Not used Not used AAH7094 ADX7407 B2P-VH

VSX-AX10 /SDLBPW
ANE7299 AAH7093 Not used RBA1099 Not used IBZ30T080FCC Not used ABA1050 Not used PEC1010 AAH7093 ADX7407 B2P-VH

Remarks

EXTERIOR SECTION
P5- 1 P5- 2 P5- 6 P5-12 P5-22 P5-23 P5-24 P5-25 P5-27 NSP NSP Top Plate Side Alum Energy Star Label Screw DTS License Label Screw 65 Label Screw FUSE Coution Label Edge guard Side Alum J4001 (2P) CN4005

NSP

No.10 No.11 No.12 No.13

CHASSIS SECTION
P7-12 P7-12 P7-29 P7-59 P7-60 P7-76 NSP Power Transformer (T1) Power Transformer (AC110V/120-127V/220V/240V) Fan Holder Fuse (FU4 : 4A/125V) Fuse (FU5-FU8 : 2A/125V) Fuse (FU9,FU10 : 1A/125V) Fan Motor ATS7320 Not used ANG7373 VEK1023 VEK1019 VEK1014 Not used ATS7322 Not used ANG7371 REK1027 (T3.15A/L250V) REK1025 (T2.0A/L250V) REK1021 (T800mA/250V) AXM7018 Not used ATS7323 ANG7371 REK1027 (T3.15A/L250V) REK1025 (T2.0A/L250V) REK1021 (T800mA/250V) AXM7018

No.14

REAR PANEL SECTION
P9-13 P9-20 P9-23 P9-24 Rear Panel Fuse (FU1) J22 FFC (13P) Speaker Sheet Fuse (FU2,FU3 : T6.3A/250V) Voitage Selector ANC8036 AEK-306 (12A/125v) ADD7333 AAK7959 Not used Not used ANC8034 REK-108 (T6.3A/L250v) Not used AAK7963 Not used Not used ANC8037 AEK7071 (T10A/L250v) ADD7333 AAK7963 REK-108 AKX-507 No.15 No.16

HEAT SINK SECTION
P11- 8 P11- 9 Heat Sink L Heat Sink R ANH7155 ANH7156 ANH7148 ANH7162 ANH7148 ANH7162

FRONT PANEL SECTION
P13-11 P13-12 P13-13 P13-15 P13-17 P13-18 P13- 19 P13-20 P13-26 P13-27 P13-28 P13-29 P13-30 P13-34 Front Panel Name Plate Rotary Knob L Rotary Knob S Panel Base L Panel Base R POWER Button POWER Button M Door Pane Door Cushion Door Plate FL Lens Inner Panel Panel Base C ANB7269 PAN1376 AAA7018 AAA7015 AMB7788 AMB7791 AAD7440 AAD7442 ANB7273 AED7051 AAH7077 AAK7934 AAH7087 AMB7785 ANB7267 VAM1124 AAA7017 AAA7014 AMB7787 AMB7790 AAD7645 AAD7646 ANB7272 AED7050 AAH7075 AAK7933 AAH7085 AMB7784 ANB7270 PAN1377 AAA7016 AAA7013 AMB7786 AMB7789 AAD7485 AAD7491 ANB7271 AED9014 AAH7078 AAK7933 AAH7088 AMB7783

3

VSA-AX10, VSX-AX10

Part No. Ref. No. Mark Symbol and Description VSX-49TX /KU/CA
Not used Not used Not used Not used

VSA-AX10 /HY
AMR7408 AMR7409 AMR7411 AMR7412

VSX-AX10 /SDLBPW
AMR7415 AMR7416 AMR7417 AMR7418

Remarks

FRONT PANEL SECTION
Panel Spacer left S Panel Spacer right S Panel Spacer left L Panel Spacer right L No.17 No.18 No.19 No.20

REMOTE CONTROL SECTION
P161- 2 P161-13 P161-14 P161-16 P161-17 P161-21 P161-23 P161-26 P161-32 P161-36 P161-37 P161-39 P161-40 PCB ASSY Seal A Seal B Case A Name Plate Case B Pen Holder Battery Cover Slide Knob Key Top A Key Top B Rubber Sheet B Rubber Sheet C AZC7299 AZA7415 AZA7416 AZN7783 AZA7406 AZN7784 AZN7786 AZN7785 AZA7347 AZA7345 AZA7346 AZA7349 AZA7411 AZC7299 AZA7417 AZA7418 AZN7885 AZA7407 102RRC24401R AZN7798 103RRC14701R Not used 302RRC09901R 302RRC10001R Not used AZA7414 AZC7300 AZA7420 AZA7420 AZN7795 AZA7409 AZN7796 AZN7798 AZN7797 AZA7365 AZA7363 AZA7364 AZA7371 AZA7411

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

EXPLODED VIEWS ÷ PACKING SECTION
VSX-AX10/SDLBPW Only No. 8 No. 9 Polyethylene Bag No.3 No.12 Power Cord Remote Control No.4 No.5 Microphone VSA-AX10/HY Only Polyethylene Bag Top Pad Top Pad Bottom Pad Packing Sheet Bottom Pad No.6 No.7 VSA-AX10/SDLBPW Only VSA-AX10/SDLBPW Only No.12 VSA-AX10/HY Only

4

VSA-AX10, VSX-AX10

÷ EXTERIOR SECTIONS
VSX-AX10 / SDLBPW ONLY IBZ30T080FCC Tape Side Alum No. 11 No.1 ABA1193 Speaker Sheet

No.16 Cushion Circle

AO
SP(B)Assy RBA1099 ABA1011 Fuse Label AC Inlet Assy Fuse(FU1) ABA1011 No.15 ABA1011 TRANS(A)Assy Trans Label SP(A)Assy ABA1011

Rear Panel
E

AC PRIMARY Assy

E

DIODE Assy Heat Sink R
D

TRANS(B)Assy Power Transformer

No. 12

ABA7076 Trans Frame No. 2 No.10 Trans Stabilizer Side Frame L
C B

AP
No.13 DSP ASSY

IBP

30

9 P0

0F

CC
RBA1099 Wire Saddle LOCAL SUPPLY ASSY

Side Wall L

Wire Clip(A) Fan Holder ABA1192 No.14

5

VSA-AX10, VSX-AX10

÷ FRONT PANEL SECTIONS
No.17 No.19

FRONT PANEL

Panel Base L

Panel Base R No.18

No.20

CONTRAST OF PCB ASSEMBLIES

A

FM/AM TUNER Module
Part No. AXQ7237
CKSRYB153K50

AXQ7238 and AXQ7237 are constructed the same except for the following:
Mark Symbol and Description
C216, C217

AXQ7238
CKSRYB123K50

Remarks

BF
Mark

A/V I/O ASSY
Part No. AWX7938
UPC4570C M62429FP HN1C03F(AB) UDZS5.6B CEJQ1R0M50 CCSRCH101J50 CEJQ100M16 CKSRYB103K50 RS1/16S474J RS1/16S221J RS1/16S474J RS1/16S220J RS1/16S472J RS1/16S103J RD1/2LMF561J RS1/16S102J DKB1045

AWX7940 and AWX7938 are constructed the same except for the following :
Symbol and Description
IC2051 IC2052 Q2051 D2051 C2051,C2052,C2059,C2060 C2053,C2054,C2063,C2064 C2061,C2065,C2066 C2069 R2051,R2052, R9069 R2053,R2054 R2055,R2056 R2057,R2058 R2061,R2062 R2063,R2064,R2069,R2070,R2073,R2074 R2065 R2067,R2068,R2071,R2072,R2075,R2076 JA2051

AWX7940
Not used Not used Not used Not used Not used Not used Not used Not used RS1/16S0R0J Not used Not used Not used Not used Not used Not used Not used Not used

Remarks

6

VSA-AX10, VSX-AX10

CF
Mark

COMPOSITE ASSY
Symbol and Description
IC2107 C2159,C2160,C2161 C2164 R2163,R2164,R2165 R2169 2105 2P PIN JACK JA2106 1P PIN JACK

AWX7944 and AWX7942 are constructed the same except for the following :
Part No. AWX7942
TC74HC4051AFT CKSRYB103K50 CCSRCH181J50 RS1/16S102J RS1/16S750J AKB7076 Not used

AWX7944
Not used Not used Not used Not used Not used Not used AKB7142

Remarks

E F V-CONVERT ASSY
AWX7952 and AWX7951 are constructed the same except for the following :
Mark Symbol and Description
IC2861 Q2855, Q2856 Q2857, Q2905 C2947, C2949, C2974 C2950 C2948, C2951- C2953, C2955, C2961- C2965 C2980 C2954 C2956, C2957 C2958- C2960 C2975 C2988 L2855 L2858 R2868 R2909 R2910- R2914, R2938, R2939 R2915 R2916, R2948 R2936, R2937 R2941, R2942 X2851

Part No. AWX7952
Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used LAU330J Not used RS1/16S911J Not used Not used Not used Not used RS1/16S0R0J Not used ASS1091

AWX7951
TA8772AN 2SC4081(RS) UN5212 CKSRYB103K50 CEAT470M10 CKSRYB104K16 CKSRYB104K16 CEAT100M50 CKSRYB474K10 CEAT1R0M50 CEAT101M10 CCSRCH100D50 LAU270J LAU100J RS1/16S821J RS1/16S103J RS1/16S102J RS1/16S362J RS1/16S473J Not used RS1/16S153J ASS1092

Remarks

F

COMPONENT ASSY
Symbol and Description
D2501 R2572 J2504

AWX7955 and AWX7953 are constructed the same except for the following:
Mark Part No. AWX7953
1SS355 RS1/16S102J AKN7014

AWX7955
Not used Not used Not used

Remarks

7

VSA-AX10, VSX-AX10

L F ANALOG IN&A/D ASSY
AWX7880, AWX7873 and AWX7878 are constructed the same except for the following:
Part No. Mark Symbol and Description
IC3901 D3901, D3902 D3401 C3951, C3952 C3953, C3954 R3533, R3534 R3543, R3544 R3555, R3556 R3951, R3952 R3955- R3957 R3958, R3959 JA3502 2P PIN JACK

AWX7878
BU4052BCF UDZS6.2B Not used CEAT100M50 CKSRYB473K50 Not used Not used RS1/16S105J RS1/16S472J RS1/16S221 RS1/16S0R0J Not used

Remarks AWX7880
Not used Not used RB501V-40 Not used Not used RS1/16S105J RS1/16S221J Not used Not used Not used Not used DKB1045

AWX7873
Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used

M F DISPLAY ASSY
AWX7866 and AWX7864 are constructed the same except for the following:
Part No. Mark Symbol and Description AWX7864
IC3061 Q3003 Q3063 D3029 D3062- D3064, D3066 C3063 R3029 R3063 R3065, R3069 R3066 R3078 TC74HC4053AFT UN5212 RN2903 SLI-343DUW(STU) 1SS355 CKSRYB153K50 RS1/16S561J RS1/16S223J RS1/16S103J RS1/16S392J Not used

Remarks AWX7866
Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used RS1/16S0R0J

AB F AC PRIMARY ASSY
AWX7837, AWX7835 and AWX7834 are constructed the same except for the following:
Part No. Mark Symbol and Description AWX7834
Q1105 Q1106 D1107 D1108 R1107 R1118, R1119 R1120 R1121 T1101 CN1106 Not used Not used Not used Not used RS1/16S104J RS1/16S0R0J Not used Not used ATT7043 Not used

Remarks AWX7837
2SC2412K(QR) DTA124EK UDZ2.7B 1SS355 RS1/16S473J Not used RS1/16S0R0J RS1/16S183J ATT7040 B02B-XASK-1

AWX7835
2SC2412K(QR) DTA124EK UDZ2.7B 1SS355 RS1/16S473J Not used RS1/16S0R0J RS1/16S183J ATT7041 B02B-XASK-1

8

VSA-AX10, VSX-AX10

R F MOTHER ASSY
AWX7895, AWX7892 and AWX7890 are constructed the same except for the following:
Part No. Mark Symbol and Description AWX7890
Q5805 Q5806 Q5809 Q5811 Q5812 Q5813 Q5814 D5801 D5808 D5809, D5816 D5810, D5812 D5811 D5813, D5818 C5801, C5802 C5818 C5819 C5820 C5851, C5854 C5852, C5853 C5858 L5802 R5814-R5818, R5820, R5821 R5891, R5893- R5897 R5829 R5830 R5842 R5843, R5844 R5845, R5848 R5846, R5849 R5854 R5855 R5857 R5862 R5864 R5819, R5899, R5935 R5932 CN5802 CN5826 2SC5174P RN4903 UN5112 Not used Not used Not used Not used UDZ11B Not used Not used Not used Not used Not used CEJQ1R0M50 CEJQ100M16 CEAT101M16 CKSRYB104K16 Not used Not used CKSRYB103K50 ATL7002 RS1/16S0R0J RS1/16S0R0J RS1/16S222J RS1/16S473J Not used Not used Not used Not used Not used RS1/16S103J Not used RS1/16S102J RS1/16S104J RS1/16S101J RS1/16S154J 52045-1345 Not used

Remarks AWX7895
Not used Not used Not used RN4903 RN1903 2SC5174P 2SA1932P Not used UDZ36B UDZ12B 1SS355 UDZS5.1B UDZ15B Not used Not used Not used Not used CEAT100M50 CKSRYB103K50 Not used Not used Not used Not used Not used Not used RS1/16S104J RS1/16S394J RS1/16S101J RS1/16S471J Not used Not used RS1/16S103J Not used Not used Not used Not used Not used KM250MA3

AWX7892
2SC5174P RN4903 Not used RN4903 RN1903 2SC5174P 2SA1932P UDZ11B UDZ36B UDZ12B 1SS355 UDZS5.1B UDZ15B CEJQ1R0M50 CEJQ100M16 CEAT101M16 CKSRYB104K16 CEAT100M50 CKSRYB103K50 Not used ATL7002 RS1/16S0R0J Not used RS1/16S222J RS1/16S473J RS1/16S104J RS1/16S394J RS1/16S101J RS1/16S471J RS1/16S103J Not used RS1/16S103J Not used Not used RS1/16S101J Not used 52045-1345 KM250MA3

9

VSA-AX10, VSX-AX10

AJ F SP (B) ASSY
AWX7856, AWX7854 and AWX7852 are constructed the same except for the following:
Part No. Mark Symbol and Description AWX7852
Q1002 D1003, D1004 R1001, R1002 R1003 R1005, R1006 R1108 CN1004 1P AC OUTLET CN1003 CN1006 4P SPEAKER TERMINAL H1001, H1002 FUSE HOLDER H1007, H1008 FUSE CLIP H1003- H1006 FUSE CLIP RY1001 RY1002 J1001 3P BOARD IN WIRE J1002 3P BOARD IN WIRE DTC124EK 1SS355 ACN7104 RCN1080 RS1/16S220J Not used AKP1033 RKP1834 AKE7076 AKR1007 Not used Not used ASR7022 ASR7016 Not used Not used

Remarks AWX7856
Not used Not used Not used Not used RS1/16S0R0J Not used AKP1034 AKP7006 XKE3019 Not used AKR1004 Not used ASR7016 Not used Not used Not used

AWX7854
Not used Not used Not used Not used RS1/16S0R0J RS1/16S473J Not used Not used XKE3019 AKR1007 Not used AKR1004 ASR7022 Not used ADX7357 ADX7389

AD
Mark

AP (A) ASSY
Symbol and Description
R1213, R1214 CN1201 6P SPEAKER TERMINAL CN1202 8P SPEAKER TERMINAL

AWX7850 and AWX7848 are constructed the same except for the following :
Part No. AWX7848
Not used AKE7075 AKE7074

AWX7850
RS1LMF471J AKE7061 AKE7059

Remarks

AG
Mark

POSISTER (L) ASSY
Part No. Symbol and Description AWX7844
TH1901 POSISTOR AEX7006

AWX7845 and AWX7844 are constructed the same except for the following:
Remarks AWX7845
AEX7007

AH
Mark

POSISTER (R) ASSY
Part No. Symbol and Description AWX7846
TH1902 POSISTOR AEX7006

AWX7847 and AWX7846 are constructed the same except for the following:
Remarks AWX7847
AEX7007

10

1

2

3

4

VSA-AX10, VSX-AX10

PCB PARTS LIST
A

Mark No.

Description

Part No.

AO AP

VOLTAGE SEL ASSY
S1401 VOLTAGE SELECTOR AKX1033

SWITCHES

POSISTER(MT) ASSY
CN1905 TH1903 2P CONNECTOR ASSY POSISTOR ADX7365 AEX7006

OTHERS

B

2. PCB CONNECTION DIAGRAM
2.1 VOLTAGE SEL. and POSISTER(MT) ASSYS

AO

VOLTAGE SEL. ASSY SIDE A SIDE B

C (ANP7388-B) (ANP7388-B)

AJ J1001

AP

POSISTER(MT) ASSY SIDE B
8061

SIDE A

(ANP7388-B)

(ANP7388-B)

D

AB CN1106

1

2

3

AO A P
4

11

VSA-AX10, VSX-AX10

Line Voltage Selection
Line Voltage can be changed by the following modification: 1. Disconnect the AC power cord. 2. Remove the cover. 3. Change the connection wire from SP (B)ASSY (W122,W123 and W137,W138) to POWER TRANSFORMER as follows. Voltage 230V 240V Jumper No. of SP(B) ASSY W122,W123 Elimination W137,W138 Addition

4. Stick a line voltage label on the rear panel. Description Part No. 220V label AAX-193 240V label AAX-192

AC OUTLET

(ANP7388-A)

AC IN POWER TRANSFORMER

AB CN1101

AJ
12

AB CN1102

AD CN1206

AJ

SP (B) ASSY

1

2

3

4

VSA-AX10, VSX-AX10

3. SCHEMATIC DIAGRAM
3.1 OVERALL WIRING DIAGRAM
ADD7331

STANDBY ASSY (AWX7901)

INPUT SEL ASSY (AWX7868)

FL SUPPLY ASSY (AWX7871)

A
4 5 6 7 8 9 10
J1801 ADX7377 J1601

AF

N
J3304

AE
J3301

ADX7385 ADX7385

M

DISPLAY ASSY ( AWX7866 )

AL FUSE ASSY (AWX7843)

AN
TRANS (B) ASSY ( AWX8057 )

ADX7379 ADX7380
ADX7384 ADX7383(2/2) ADX7383(1/2) ADX7384(1/2)

PRIMARY (/SDLBPW Only) DIODE ASSY (AWX7841)
C1 ACH7164
ADX7360

POWER TRANSFORMER (ATS7322/HY) (ATS7323/SD)

B

AK
POWER SW ASSY (AWX7840)
WHT : NEUTRAL

ADX7363

AM
TRANS (A) ASSY (AWX7838)

ADX7361

ADX7366

(GLY)

J1501

J1208

ORG : LIVE

C2 ACH7164
J1207 J1201

ADX7359 ADX7368 (BLK)
(BLK)

AC
C

(GLY)

ADX7368 ADX7370

ADX7362 Fan Motor AXM7012 CN5826

AP

ADX7371

AB
AC PRIMARY ASSY (AWX7837/HY) (AWX7835/SD)

E
V-CONVERT ASSY ( AWX7951 )
ADD7334

AD
SP (A) ASSY (AWX7850)
J1206

FU2, FU3 : REK-108 (T6.3A/L250V /SDLBPW Only)

AO

ADX7357

AJ
SP (B) ASSY (AWX7856/HY) (AWX7854/SD)
FU1 : REK-108 (T6.3A/L250V/HY) AEK7071 (T10A/L250V/SD)

AC INLET ASSY : ADX7395

ADX7364

CN1007

R

MOTHER ASSY (AWX7895/HY) (AWX7892/SD)

D

13
1 2 3 4

1

2

3

4

VSA-AX10, VSX-AX10 3.2 A/V I/O ASSY
A

(DVD)

(DVD)

(DVD)

B

A/V Function Selector
(DVD) (DVD)

(MIC) (F)

(MIC) (FV)

(FV) (MIC)

(REC)

C

(REC)

(REC)

(REC)

(DVD)

(F)

(REC)

D

14

BF
1

2

3

4

5

6

7

8

VSA-AX10, VSX-AX10

B F A/V I/O ASSY
(AWX7940)

A

(MIC) (MIC)

RF
B
(MIC) (FV) (F) (MIC) (FV) (F) (REC) (REC) (MIC) (FV) (FV) (REC) (REC) (REC) (F) (F)

A/V MR Function Selector

R F CN5820
C D

(DVD) (REC) (MIC) (F) (REC) (REC) (FV)

: AUDIO SIGNAL ROUTE (DVD) : AUDIO SIGNAL ROUTE (REC) : AUDIO SIGNAL ROUTE (MIC) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (FV)

(REC)

(F)

5

6

7

BF
8

15

CN5821

1

2

3

4

VSA-AX10, VSX-AX10 3.3 COMPOSITE ASSY
A

C
(DVD)

F COMPOSITE ASSY
(DVD)

(AWX7944)

Video Function Selector (Composite)

I/O Selector (Composite)

(DVD)

B

Q2106 2SC4081

Q2107 2SC4081

Q2101 2SC4081

Clamp

C

REC OUT Selector (Composite)

D

16

CF
1

2

3

Q2102 2SC4081

Q2103 2SC4081

4

5

6

7

8

VSA-AX10, VSX-AX10

: The power supply is shown with the marked box.
(DVD)

: VIDEO SIGNAL ROUTE (DVD) : VIDEO SIGNAL ROUTE

A

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

6dB AMP.

JA2106
AKB7142

OSD Input-Selector

(OSD)

(OSD) (OSD) (OSD)
Q2105 2SC4081 Q2108 2SC4081

B

(OSD) (OSD) (OSD)

Port Expander

OSD
(OSD)

G CN3301
C D

Port Expander
Q2104 UN5212

R F CN5822
5 6 7

CF
8

17

1

2

3

4

VSA-AX10, VSX-AX10 3.4 V-CONVERT ASSY
(Y)

A
(Y) (Y)
Q2853 2SC4081

(Y)

(C)

Q2852 2SA1576A

Q2851 2SA1576A

Clock Gen.

Y/C Sep.
(C)
Q2854 2SC4081

(C)

Q2904 2SC4081

B

(Y) (C) (Y) (OSD) (Y)

(CY)

(Cr)

0dB Buffer
(Cb)

G
CN3304
(Cr)

(Cr) (CY)

CHROMA Decoder
(Cb)

(CY)

0dB Buffer
(C)

(C)

(Y)

(C) (Y)

(Cb)

(C)
Q2855 2SC4081

C

Q2856 2SC4081

Q2905 Q2957 UN5212 UN5212

D

18

E

1

F

2

3

4

5

6

7

8

VSA-AX10, VSX-AX10

(Y)

(Y)
Q2901 2SC4081

E
(Y)

F V-CONVERT ASSY (AWX7951)
Y 0dB Buffer Y Invert Buffer

A

(C)

(C)

(C)

(Y)

LPF (CHROMA)

OSD SW (Y)
(C)

OSD SW (C)

(Y)

(Y)

(Y) (Y)

(C)

(Y)

Q2902 2SA1576A

(Y)

(OSD)

(OSD)

(C)

(Y) (OSD)

(Y)

(Y)

(CY)

(OSD)

(CY)

(C)

(Y)

(C)

(C)

(C) (C)

(Y)

(CY)

(C)

(C)

0dB Buffer
(CY)

(Y)

B

C 0dB Buffer 0dB Buffer

Y/C MIX

(Cr)

(Cr)

(CY)

Port Expander

(Cb)

(Cb)

0dB Buffer
(Cr)

(Cb) (CY)

(Cb)

C

+9V

: VIDEO SIGNAL ROUTE
(Y) (C) (CY) (Cb) (Cr) (OSD)

: Y SIGNAL ROUTE : C SIGNAL ROUTE : Y SIGNAL ROUTE (COMPONENT) : Cb SIGNAL ROUTE (COMPONENT) : Cr SIGNAL ROUTE (COMPONENT) : VIDEO SIGNAL ROUTE (OSD)

D

R F CN5825
5

: The power supply is shown with the marked box.

6

7

E

8

F

19

1

2

3

4

VSA-AX10, VSX-AX10 3.5 ANALOG IN & A/D ASSY (1/3)

L 1/3 F
A

ANALOG IN & A/D ASSY (VSA-AX10 : AWX7880) (VSX-AX10 : AWX7873)
(PH) (PH)

(PH)
RB501V-40

(PH)

VSA-AX10/HY ONLY

(TX) (CD)

(TX)

(PH)
R3555 VSX-AX10 Only

B VSA-AX10 Only
TUNER

(F)

(F)

(CD) (F)

(CD)

(TX) (REC)

R3556 VSX-AX10 Only

(TX)

(PH)

(F) (F)

(REC)

(REC)

(F)

Audio Function Selector

C

(REC)

(F)

(F)

(F)

(F)

(S)

(F) (F) (S) (S) (S) (S)
AX10, ACH7163 AX10, ACH7163

(S)

(F) (F)

D

L 2/3
20

L 1/3F
1 2 3 4

(C)

(C)

5

6

7

8

VSA-AX10, VSX-AX10

L 2/3
A

(TX)

(TX)

(F) (TX) (TX)

(F)

RF
(C)

CN5814
B

(F)

(F) (F)

(F)

(F) (F) (F) (F) (SB)

AX10, ACH7163

(F) (F)

AX10, ACH7163

(C) (F) (C)

(SB)

(C) (SB)

C

(F)

(F)

(F) (C) (S)

(F) (C) (SB) (S) (SB) (S)

RF
CN5815

(F)

(F)

(F)

(C)

(SB)

(SB)

A/D Mode Selector

(SB)

(S)

D
(SB) (S) (PH) (CD) (TX)

: AUDIO SIGNAL ROUTE (PHONE) : AUDIO SIGNAL ROUTE (CD) : AUDIO SIGNAL ROUTE (TUNER)

(FL) (C) (S)

: AUDIO SIGNAL ROUTE (FL) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (SL)

(SB) (REC)

: AUDIO SIGNAL ROUTE (SBL) : AUDIO SIGNAL ROUTE (REC)

L 3/3

5

6

7

L 1/3F
8

21

1

2

3

4

VSA-AX10, VSX-AX10 3.6 DISPLAY ASSY
A

LED Driver

B

UN5212
Q3001

C

DISPLAY ASSY Switches S3081 : ACOUSTIC CAL. S3082 : MIDNIGHT S3083 : LOUDNESS S3084 : SIGNAL SELECT S3085 : SP SYSTEM A/B S3086 : TONE S3087 : BASS/TREBLE S3088 : TONE S3089 : MULTI CH INPUT S3090 : TAPE2 MONITOR S3091 : VIDEO SELECT S3092 : TONE + S3093 : DIGITAL NR S3094 : INPUTATT S3095 : SELECT EFECT S3096 : ­ /CH LEVEL S3097 : + S3098 : LISTENING CH SELECT

AF
D

CN1903

R F CN5807
22

MF
1

2

3

4

5

6

7

8

VSA-AX10, VSX-AX10

M F DISPLAY ASSY

(AWX7866)

A

FL DISPLAY

Q3051 UN5212

AE
CN1902

B

O
3102

C

P
3103
REMOTE RECEIVER UNIT

N
3104

Remote Signal Control

D

5

6

7

MF
8

23

1

2

3

4

VSA-AX10, VSX-AX10 3.7 MOTHER ASSY
To Fan Motor A
26.4V Q5813 2SC5174P

CN2501

EF
CN2851

AB F CN1104

(C) (Y)

Q5814 -26.4V

2SA1932P

A CN2705

VSX-AX10 /SDLBPW ONLY
(TX)

R

F

MOTHER ASSY (VSA-AX10 : AWX7895) (VSX-AX10 : AWX7892)

VSX-AX10 /SDLBPW ONLY

EEP ROM

B

10V Q5805 2SC5174P RDAT Q5808 UN5112



C

AA CN4004 AA CN4003

Reset IC

15V

15V

-15V

-15V

(D)

D
(D) (MIC) (C) (FV) (Y)

24

RF
1

I

CN3201
2

H CN3207

M F CN3001
3 4

(D)

VSX-AX10 /SDLBPW ONLY

VSX-AX10 /SDLBPW ONLY

D CN2301

F

5

6

7

8

VSA-AX10, VSX-AX10
(D)

: VIDEO SIGNAL ROUTE
(Y) (C)

: AUDIO SIGNAL ROUTE (DIGITAL) : AUDIO SIGNAL ROUTE (REC) : AUDIO SIGNAL ROUTE (MIC) : AUDIO SIGNAL ROUTE (F)

(FV) (C) (S) (SB) (TX)

(REC) (MIC) (F)

: Y SIGNAL ROUTE : C SIGNAL ROUTE

: AUDIO SIGNAL ROUTE (FV) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) : AUDIO SIGNAL ROUTE (SB) : AUDIO SIGNAL ROUTE (TUNER) A

C F CN2101

(F)

B F CN2001

(SB)

Q 1/3 CN5002

(SB)

(FV)

(C)

(C)

L 1/3 F CN3401

(D)

(SB)

(F) (F) (MIC)

(C) (F)

Q5817 UN5212

Q5818 UN5112

(C) (TX) (S) (SB)

Q 1/3 CN5001

S 1/5 CN702 S 1/5 CN701
B C
(SB) (S) (C) (F)

(REC)

(S)

(F)

(SB) (S)

(C)

B F CN2002

(C) (S)

Q 1/3 CN5003

(SB)

(F)

UN511L
Q5810

Mute Control

L 1/3 F CN3402

(SB) (S) (C) (F)

3V 5V Converter

Q5807 UN5212

Buffer

U 1/2 CN6004
D

VSA-AX10 ONLY

U 1/2 CN6003
: The power supply is shown with the marked box.

L 2/3 CN3403

5

6

7

RF
8

S 1/5 CN703
25

1

2

3

4

VSA-AX10, VSX-AX10 3.8 AC PRIMARY and SP (A) ASSYS
A

R CN5801 AP CN1905
B02B-XASK-1

DTA124EK 47k

AC PRIMARY ASSY (VSA-AX10/HY :AWX7837) (VSX-AX10/SD :AWX7835)

+5V

60Hz

B

0V

1SS355

AC CN1301

AB F

Port Expander

UDZ2.7B 2SC2412K

T1101 ATT7040 / HY ATT7041/SD

18k

C

AJ F

CN1001

AJ

CN1005

D

26

AB F L
1

2

3

4

5

6

7

8

VSA-AX10, VSX-AX10

V

J4801

X

J4802

(F) (C) (S) (SB)

: AUDIO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (C) : AUDIO SIGNAL ROUTE (S) : AUDIO SIGNAL ROUTE (SB)

A

(S)

(SB)

(C)

(F)

AD
Speaker Relay

SP (A) ASSY (AWX7850)

(F)

(F) (F) (F)

AKE7061

K CN3203

(F)

B

(C)

(C) (S) (S)
AKE7059

(F)

(SB) (F) 470 1W F 470 1W F (SB)

C

AJ F
CN1007

D

5

6

7

AD
8

27

1

2

3

4

VSA-AX10, VSX-AX10 3.9 POSISTER (MT), SP (B), DIODE, TRANS (A), TRANS (B), FUSE and VOLTAGE SEL. ASSYS
A

AO
VOLTAGE SEL. ASSY(AWX7842)
VSX-AX10 /SDLBPW ADX7357 ONLY

AB F CN1101

AJ F
VSA-AX10/HY ONLY

AKX1033

SP (B) ASSY (VSA-AX10/HY:AWX7856) (VSX-AX10/SD:AWX7854)

INLET ASSY AC OUTLET

CN1004 VSA-AX10/HY
AKP1034

ONLY

B

FU1 /SD : AEK7071(10A/250V) VKP2251

VSA-AX10/HY : ASR7016 VSX-AX10/SD : ASR7022

AP
AB F
CN1106

POSISTER (MT) ASSY (AWX8061)

FU1 /HY : REK-108(T6.3A/250V)

VSA-AX10/HY ONLY
FU2, FU3 SD : REK-108(T6.3A/250V) FU2 FU3

ADX7389

VSX-AX10/SDLBPW ONLY

C

AM
AK J1503,J1504

AN TRANS (B) ASSY (AWX8057)
T1
FU10 : REK1021 (800mA/250V)
H1703 H1704

H1701

H1702

FU9 : REK1021 (800mA/250V)
H1701­H1704 : AKR1004

5.9V AC

D

28

AM AN AJ F AO AP
1 2

3

4

AA CN4002

TRANS (A) ASSY POWER TRANSFORMER (AWX7838) (ATS7322)

5

6

7

8

VSA-AX10, VSX-AX10

· NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.

A

AB F CN1102

AD J1206
AKC7002

AC Relay

VSA-AX10 : ASR7016 VSX-AX10 : ASR7022

Speaker Relay

B

XKE3019

AL

FUSE ASSY (AWX7843)
FU4 (T3.15A/250V) VEK1027 FU5 (T2.0A/250V) FU6 FU7 (T2.0A/250V) (T2.0A/250V)

C

AA
CN4001

FU8 (T2.0A/250V) FU5-FU8 : VEK1025

AE
CN1901
D

5

6

7

AJ F AL
8

29

VSA-AX10, VSX-AX10

4. REMOTE CONTROL UNIT [AXD7296&AXD7298]
4.1 CONTRAST OF MISCELLANEOUS PARTS
NOTES : ÷ Parts marked by " NSP " are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part. ÷ The Therefore, when replacing, be sure to use parts of identical designation. ÷ Screw adjacent to mark on the product are used for disassembly. ÷ Reference Nos. indicate the pages and Nos. in the service manual for the base model.

7 CONTRAST TABLE
AXD7295, AXD7296 and AXD7298 are constructed the same except for the following:
Ref. No.
P161- 2 P161-13 P161-14 P161-16 P161-17 P161-21 P161-23 P161-26 P161-32 P161-36 P161-37 P161-39 P161-40

Mark

Symbol and Description AXD7295
PCB Assy Seal A Seal B Case A Name Plate Case B Pen Holder Battery Cover Slide Knob Key Top A Key Top B Rubber Sheet B Rubber Sheet C AZC7299 AZA7415 AZA7416 AZN7783 AZA7406 AZN7784 AZN7786 AZN7785 AZA7347 AZA7345 AZA7346 AZA7349 AZA7411

Part No. Remarks AXD7296
AZC7299 AZA7417 AZA7418 AZN7885 AZA7407 102RRC24401R AZN7798 103RRC14701R Not used 302RRC09901R 302RRC10001R Not used AZA7414

AXD7298
AZC7300 AZA7421 AZA7420 AZN7795 AZA7409 AZN7796 AZN7798 AZN7797 Not used AZA7363 AZA7364 AZA7371 AZA7411

30

AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER

VSX-49TX

LISTENING MODE SELECTOR
STANDBY/ON

MAC3
STANDBY VIDEO AUDIO TUNER PHONO

OFF

ON

DVD/LD

TV/DVD

SAT

VIDEO

VCR

VCR2

VCR3

CD

CD-R/ TAPE1/MD

MULTI CH INPUT

INPUT SELECTOR

MASTER VOLUME

ORDER NO.
DOWN UP

RRV2523

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-49TX
VSX-47TX
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type KU/CA Model VSX-49TX VSX-47TX AC120V Power Requirement Remarks

CONTENTS
1. SAFETY INFORMATION ...................................... 2 2. EXPLODED VIEWS AND PARTS LIST ............... 3 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ... 14 4. PCB CONNECTION DIAGRAM ......................... 82 5. PCB PARTS LIST ............................................. 122 6. ADJUSTMENT .................................................. 140 7. GENERAL INFORMATION .............................. 7.1 DIAGNOSIS ................................................ 7.1.1 TEST MODE ......................................... 7.1.2 Protection Circuit Control ..................... 7.1.3 DISASSEMBLY .................................... 7.2 PARTS ........................................................ 7.2.1 IC .......................................................... 7.2.2 DISPLAY ............................................... 7.3 REMOTE CONTROL UNIT ........................ 8. PANEL FACILITIES AND SPECIFICATIONS ..... 141 141 141 142 145 149 149 158 160 171

PIONEER ELECTRONIC 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

c PIONEER ELECTRONIC CORPORATION 2001
T ­ ZZR OCT. 2001 Printed in Japan

VSX-49TX, VSX-47TX

1. SAFETY INFORMATION
This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 ­ Proposition 65

NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or be of identical designation.

(slow operating fuse) on PCB indicate that replacement parts must

REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou de remplacement doivent avoir la même désignation.

(fusible de type lent) sur CCI indiquent que les pièces

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5mA.

2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.

Device under test Test all exposed metal surfaces

Reading should Leakage not be above current 0.5mA tester

Also test with plug reversed (Using AC adapter plug as required)

Earth ground

AC Leakage Test

2

VSX-49TX, VSX-47TX

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.
VSX-47TX Only 3 17 18

2.1 PACKING
(1) PACKING PARTS LIST
Mark No.
1 2 VSX-49TX VSX-47TX Only Only 4 5 16 VSX-49TX Only 9 10 8 20 7 11 (2/2) 11 (1/2) 12 (2/2) 12 (1/2)
NSP NSP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Power Cord ADG7052 FM Wire Antenna ADH7010 AM Loop Antenna ATB7009 Remote Control Unit AX10KU See Contrast table (2) Remote Control Unit 47TXKU See Contrast table (2) Alkaline Dry Cell Battery (LR6, AA) Operating Instructions (English) Caution Sheet SP, E Warranty Card EL Cushion for Remote Top Pad Bottom Pad Spacer Packing Case Packing Sheet Polyethylene Bag (0.03 × 230 × 340) Remote Control Cable Remote Control Stand Handle Cover Microphone VEM1021(2pcs.) See Contrast table (2) ARM7056 ARY1026 See Contrast table (2) AHA7362 AHA7363 AHB7057 See Contrast table (2) DHL1022 Z21-038 See Contrast table (2) See Contrast table (2) AHX7034 See Contrast table (2)

Description

Part No.

6 13 19

15

13

19

14

(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA constructed the same except for the following : Mark No.
4 5 7 10 14

Symbol and Description
Remote Control Unit AX10KU Remote Control Unit 47TX/KU Operating Instruction (English) Cushion for Remote Packing Case

Part No. VSX-49TX/KU/CA
AXD7295 Not used ARB7249 AXG7080 AHD8029 Not used Not used APM7001

VSX-47TX/KU/CA
Not used AXD7299 ARB7250 Not used AHD8028 ADE7083 AEB7243 Not used

Remarks

17 Remote Control Cable 18 Remote Control Stand 20 Microphone

3

VSX-49TX, VSX-47TX

2.2 EXTERIOR SECTION
22 21 24 12 12 11 1

12 23 20 (Shows VSX-49TX) 2 4 15

Refer to "2.3 CHASSIS SECTION." 14

12 26 27 25 16 13

3

14

29 20 4 3

4

A

4

25
A D B C

13

13 18 Refer to "2.6 FRONT PANEL SECTION." 6 17
B C D

28

12 2 (Shows VSX-49TX)

18 19

Refer to "2.5 HEAT SINK SECTION."

19

VSX-49TX ONLY 7

8

17 9 10 19 19 17 5 19 10

17 9

4

VSX-49TX, VSX-47TX

(1) EXTERIOR SECTION PARTS LIST
Mark No.
NSP NSP NSP NSP NSP NSP NSP 1 2 2 3 3 4 5 6 7 8 9 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Description
Top Plate BK Side Alum BK Side Plate BK Side Panel Sheet Side Panel Sheet S Tape UL Caution Card Energy Star Label Bottom Plate B Bottom Plate A Insulator Assy Insulator Screw Screw Screw Screw Screw Screw Screw Screw Screw Screw Washer Coution Label DTS License Label Screw 65 Label Screw ICP Coution Label FUSE Coution Label ICP Coution Label Binder

Part No.
ANE7282 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) AAX-313 AAX7876 See Contrast table (2) ANF7029 See Contrast table (2) See Contrast table (2) ABA1054 BBT30P060FCC FBT40P080FZK ABA7079 RBA1099 VBA1056 ABA1011 ABA1050 ABA1193 IBZ30P090FCC See Contrast table (2) See Contrast table (2) See Contrast table (2) BBZ30P080FCC ARW7050 BBT30P100FCC ARW7151 VRW-548 ARW7150 ZCA-BK1

(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following : Mark No.
2 2 3 3 4 7 9 9 20 21 22

Symbol and Description
Side Alum BK Side Plate BK Side Panel Sheet Side panel Sheet S Tape Bottom Plate B Insulator Assy Insulator Washer Caution Label DTS License Label

Part No. VSX-49TX/KU/CA
AAH7081 Not used AMR7284 Not used PNM1249 ANF7030 VXA2368 Not used Not used ARW7036 ARW7148

VSX-47TX/KU/CA
Not used ANE7279 Not used AMR7384 Not used Not used Not used PNW2766 ABE7008 Not used Not used

Remarks

NSP NSP NSP NSP

5

VSX-49TX, VSX-47TX

2.3 CHASSIS SECTION
Refer to "2.4 REAR PANEL SECTION". 15 14 51 3 47 52
E

46 43 14
D

46 43

AM
64 4 52
E

17 48 49 49 71 50 50 50 47 16 18 43
C

45 45 43 44
B

43 17

48

50

AN
76

50

43

AK
2
D

48 49 43
F

20

12

13 43 19 53 68 21 43
C

74 1

R
43

62 61 43

F

66 42

45

44

46 22 43 23 24 25 24

B

53

43

41 57 46 43 29 43 E 26 45 E 27 65 72 68 43 25 60 59 5 68 57 48 24 43 33 55 32 55 18
A

41 30 53
A

40

30 67 46 31 46

43 43 27 39

33 45 58

45 28 65

AL

38

43 75

55 7

AI
45 43 54 35 46 36

43

70

S
9 50 37

T
11 70

43 43 6 68 55

U

10

VSX-49TX ONLY

H
34 54 35 46 36 50 37 56 43 8 73 63

56

AA

65

6

VSX-49TX, VSX-47TX

(1) CHASSIS SECTION PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Description
MOTHER Assy DIODE Assy TRANS (A) Assy TRANS (B) Assy FUSE Assy MIC AMP Assy DSP DIODE Assy LOCAL SUPPLY Assy DAC10 Assy DAC8 Assy DSP Assy DSP3 Assy Power Transformer (T1) PCB Holder B Capacitor (C1, C2) Rubber Spacer Earth Plate Joint Plate PCB Base Trans Frame Sheet Trans Stabilizer Side Frame L Side Wall L Wire Clip (A) Insulator Frame B Glass Tube Cord Holder Panel Stay Fan Holder B Wire Saddle Side Wall R Flat Cable Clamp Insulator Frame A Sub Heat Sink PCB Holder D Mica Sheet S Bushing 26 PCB Spacer Shield Case A Side Frame R

Part No.
See Contrast tabel (2) AWX7841 AWX7838 AWX8057 AWX7843 AWX7872 AWX7958 AWX7887 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) ATS7320 ANG7388 ACH7164 AEB7244 ANG7381 ANG7382 RNE1849 ANA7137 AEE7043 ANG7378 See Contrast table (2) See Contrast table (2) VEC1355 ANG7377 ADN7006 RNH1005 See Contrast table (2) See Contrast table (2) DEC1450 See Contrast table (2) AEC7376 ANG7376 ANH7154 ANG7392 AEE7042 AEC7128 AEC7156 See Contrast table (2) See Contrast table (2)

Mark No.
NSP NSP NSP 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

Description
Tape Shield Case B Screw PCB Holder C Screw Screw Screw Screw Screw Screw Trans Label Screw Screw Screw Screw Screw Screw PCB Frame B Fuse (FU4, 4A) Fuse (FU5-FU8, 2A)

Part No.
PNM1249 See Contrast table (2) ABA1011 ANG7389 BBZ30P080FCC IBP30P090FCC VBA1056 ABA1082 BMH40P080FMC ABA7076 AAX7897 ABA1014 BBT30P060FCC ABA1050 ABA1192 ABA7084 RBA1099 ANG7386 VEK1023 VEK1019

NSP

NSP NSP NSP

NSP

NSP NSP NSP NSP NSP

J29 FFC (17P) ADD7329 (MOTHER CN5807 ­ DISPLAY CN3001) J30 FFC (11P) ADD7337 (MOTHER CN5806 ­ MIC AMP CN3207) J16 8P Connector Assy ADX7379 (LOCAL SUPPLY CN4001 ­ FUSE CN1802) J17 3P Connector Assy ADX7380 (LOCAL SUPPLY CN4002 ­ TRANS(B) CN1701) Binder ZCA-BK1 Card Spacer REC1156 PCB Holder PNW2100 Locking Card Spacer VEC2234 Screw ABA7017 PC Support DEC1772 Oval head Terminal wire ADX7366 J1601 5P,7P Parallel wire ADX7385 J5805 9P Connector Assy ADX7378 (Local Supply CN4004­Mother CN5805) 5802 Crimp Connector Assy PF06PP-R27 (Mother CN5827­Mother CN5828) PCB Spacer VEC1508 Fuse (FU9-FU10, 1A) VEK1014

NSP NSP NSP NSP NSP NSP NSP NSP NSP

(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following : Mark No.
1 9 9 10 11 NSP NSP NSP NSP NSP NSP NSP 22 23 28 29 31 MOTHER Assy DAC10 Assy DAC8 Assy DSP Assy DSP3 Assy Side Frame L Side Wall L Panel Stay Fan Holder Side Wall R

Symbol and Description

Part No. VSX-49TX/KU/CA
AWX7890 AWK7725 Not used AWK7719 AWK7727 ANA7133 AND7041 AND7045 ANG7373 AND7043 ANK7093 ANA7135 ANK7095

VSX-47TX/KU/CA
AWX7891 Not used AWK7726 AWK7720 Not used ANA7134 AND7042 AND7046 ANG7374 AND7044 ANK7094 ANA7136 ANK7096

Remarks

39 Shield Case A 40 Side Frame R 42 Shield Case B

7

VSX-49TX, VSX-47TX

2.4 REAR PANEL SECTION

24 23 1

25

A AJ
19 20 19 29 4 2 15

16 18 16 16 16 17 14 16 16 21

19

16 16 13

AD
19

AB
3 22 26

G
5 6 27

28

E F
8

VSX-49TX ONLY 7

Q D
9

C
10

L
11

B
12

8

VSX-49TX, VSX-47TX

(1) REAR PANEL SECTION PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Description
FM/AM TUNER Module SP (B) Assy AC PRIMARY Assy SP (A) Assy VIDEO CONNECT Assy V-CONVERT Assy COMPONENT Assy S-VIDEO Assy COMPOSITE Assy AV I/O Assy VR & PRE OUT Assy ANALOG IN & A/D Assy Rear Panel Screw with Terminal AC Inlet Assy Screw Hexagonal Screw Screw Screw Fuse (FU1, 12A/125V)

Part No.
AXQ7237 AWX7852 AWX7834 AWX7848 See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) AKE-031 VKP2251 BBZ30P080FCC ABA7078 ABA1193 ABA1011 AEK-306

Mark No.
24 25 26 27 28

Description

Part No.

Speaker Sheet 49 AAK7959 Cushion Circle AED7052 Jamper Wire 3P D20PYY0365E (AC Primary CN1105 ­ Power SW CN1301) J5001 8P Connector Assy ADX7382 (VR&PRE OUT CN5005 ­ Power AMP(BR) CN4811) J5002 14P Connector Assy ADX7381 (VR&PRE OUT CN5006 ­ Power AMP(L) CN4801 and Power AMP(R) CN4802) Binder ZCA-BK1

29

Short Pin Plug AKM7005 J23 FFC (14P) ADD7334 (SP(A) CN1104 ­ MOTHER CN5801) J22 FFC (13P) ADD7333 (TUNER CN2705 ­ MOTHER CN5802)

(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following : Mark No.
5 6 7 8 9 10 11 12 13

Symbol and Description
VIDEO CONNECT Assy V-CONVERT Assy COMPONENT Assy S-VIDEO Assy COMPOSITE Assy AV I/O Assy VR & PRE OUT Assy ANALOG IN & A/D Assy Rear Panel

Part No. VSX-49TX/KU/CA
AWX7876 AWX7952 AWX7953 AWX7948 AWX7942 AWX7938 AWX7888 AWX7878 ANC8036

VSX-47TX/KU/CA
AWX7877 Not used AWX7954 AWX7949 AWX7943 AWX7939 AWX7917 AWX7879 ANC8035

Remarks

9

VSX-49TX, VSX-47TX

2.5 HEAT SINK SECTION

8

12 12 12 15 18 10 11 6 15 15 1 10

3

V
14 14

Y

2 10 21 4 10 10 15 15 19 16 17 10 20 21 16 17 11 12

AG

X
15 12 9

W
13

19

16 20 16

Z
5

12

13

18 17 17 7

AH

10

VSX-49TX, VSX-47TX

· HEAT SINK SECTION PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10 NSP NSP 11 12 13 14 15 16 17 18 19 20 21

Description
POWER AMP (L) Assy POWER AMP (R) Assy POWER AMP (BR) Assy POWER AMP (C) Assy POWER AMP (G) Assy POSISTER (L) Assy POSISTER (R) Assy Heat Sink L Heat Sink R Mica Sheet L Mica Sheet M PCB Holder A Heat Sink Holder Screw Screw Screw Screw Screw Screw Over head Terminal wire(RED)

Part No.
AWX7882 AWX7883 AWX7885 AWX7884 AWX7886 AWX7844 AWX7846 See Contrast table (2) See Contrast table (2) AEE7045 AEE7046 ANG7387 ANG7375 ABA1011 IBP30P090FCC BMZ30P060FCU RBA1099 ABA7076 ABA7083 ADX7383

Over head Terminal wire(BLUE) ADX7384

(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following : Mark No.
8 Heat Sink L 9 Heat Sink R

Symbol and Description

Part No. VSX-49TX/KU/CA
ANH7155 ANH7156

VSX-47TX/KU/CA
ANH7148 ANB7149

Remarks

11

VSX-49TX, VSX-47TX

2.6 FRONT PANEL SECTION
45 1

M
46 46 46 44 45

37

45 43 39 50

A

55
B

49

41 53 2

47 C

35 48

K
55 59 4

42

46
E

D

32

33 55 30 29
F

60 58 3 45 38

27 31 51 55 27 34

I
41 33 49 36

J

46 43 G

F

48

40

28

51

G

27 5 19

54

AC
6

46

AF

26

40

46 20 21
B

46 61

AE
7
A

46 D 46 22

9

52

55 23

O
46

56 46 46

C

N
8 24 23 46 46 57

56

17 11 24

22

25 55 46

E

10

P
56 46

12

16

18 24 22

14

49 49 13 14 15 49 13 49

12

VSX-49TX, VSX-47TX

(1) FRONT PANEL SECTION PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NSP NSP NSP 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

Description
DISPLAY Assy HEADPHONE Assy FRONT A/V Assy MIC & OPT Assy STANDBY Assy POWER SW Assy FL SUPPLY Assy INPUT SEL Assy MULTI JOG Assy VOL Assy Front Panel Pioneer Badge Rotary Knob L BK Plate Rotary Knob S BK Display Panel Panel Base L BK Panel Base R BK Power Button Power Button M Washer VR Stabilizer Cord Holder Nut Earth Spring Door Panel BK Door Cushion BK Door Plate FL Lens Inner Panel LED Lens Cord Clamper LED Lens Panel Base C BK Door Hinge L

Part No.
See Contrast table (2) AWX7874 AWX7902 AWX7875 AWX7901 AWX7840 AWX7871 AWX7868 AWX7869 AWX7870 See Contrast table (2) PAN1376 AAA7018 ANG7198 AAA7015 AAK7932 AMB7788 AMB7791 AAD7440 AAD7442 ABF7008 ANG7383 RNH1005 NK90FCU ABK7031 ANB7273 AED7051 AAH7077 AAK7934 See Contrast table (2) AAK7931 RNH-184 PNW2019 AMB7785 ANG7379

Mark No.
NSP 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

Description
Door Hinge R Door Holder L Door Holder R Damper Assy Screw Magnet Input Holder Earth Spring Shield Plate D Screw Screw Screw Screw Screw Screw

Part No.
ANG7380 AMR7373 AMR7374 AXA7108 ABA7074 AMF7004 ANG7384 ABH7208 AMR7390 BBZ30P100FZK BBZ30P080FCC ABA7053 BBT30P060FCC ABA1050 BBZ20P060FMC

NSP NSP

Screw ABA7076 J33 FFC (3P) ADD7331 (DISPLAY CN3002 ­ STANDBY CN1903) J35 FFC (4P) ADD7332 (SP(A) CN1206 ­ HEADPHONE CN3203) J1101 Parallel Wire 3P D20PYY0365E (POWER SW CN1301 ­ AC PRIMARY CN1105) Fiber Washer VEC1254 Earth Metal Fitting DE007VC0 Earth Metal Fitting DE012VF0 J32 8P Connector Assy ADX7390 (Front A/V CN3204 ­ MIC AMP CN3206) J99 4P Connector Assy ADX7387 (MIC & OPT CN3202 ­ MIC AMP CN3205) J31 5P Connector Assy ADX7386 (MIC & OPT CN3201 ­ Mother CN5804) J1801 4P Connector Assy ADX7377 (FL Supply CN1901 ­ FUSE CN1803)

NSP NSP

NSP

(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following : Mark No.
1 DISPLAY Assy 11 Front Panel 30 Inner Panel

Symbol and Description

Part No. VSX-49TX/KU/CA
AWX7864 ANB7269 AAH7087

VSX-47TX/KU/CA
AWX7865 ANB7268 AAH7086

Remarks

13

1

2

3

4

VSX-49TX, VSX-47TX

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
3.1.1 Audio Block
A
ANT

R MOTHER ASSY(1/5)
CN2705
(13P)

A FM/AM TUNER MODULE
IC2001 TC9164AF A/V Function Selector DVD/LD L TV L SAT L VCR1 PLAY L VCR2 PLAY L VCR3 PLAY L 27 26 25 24 22 21 18 19 IC2002 TC9162AF A/V MR Function Selector 27 25 17 20 23

CN5802
(13P)

CN5814
(20P)

CN3401
(20P) TXL TXL

7

L CH

7

20

20 IC3423-2/2 M5220P 5 7 6

L ANALOG IN & A/D ASSY
IC3422 TC9163AF Audio Function Selector
(F)

(F)

CN2001
(17P)

4

VFUNCL

PHONE L CD L

CN3401
(20P)

27 26 25 23 22 21

24

12 16 8

VFUNC INL MR LOUT MC CIN MC SBLIN

(MR)

8
(REC)

MR OUTL

B
AV I/O ASSY
IC2051-1/2 UPC4570C 3 1 2 (MR) MR VOL IC2052 M62429FP 8 7

14

RECL

TAPE1 PLAY L FL IN TAPE2 PLAY L TAPE1 REC L TAPE2 REC L

20 IC3424-1/2 UPC4570C 5 7 6

4

CN3402
(F) (17P)

(F)

19
(REC)

17

2
(SB)

EX FLOUT EX SBLOUT EX COUT EX SLOUT

18
(REC)

14 6
(C)

VSX-49TX ONLY

10

(MR)

B
VCR3 REC L VCR1 REC L VCR2 REC L

26 24 23 18 21 20
(17P)

MR OUT L

11 15 14

13

(S)

22 17 19 1 2 3
(REC)

IC2053-2/2 BA4558F

SL IN

CN2002
MIC

CN2001
(17P)

1

12
FV L

R I

1 CN5821
(17P)

12

MOTHER 1 ASSY(2/5) MIC MIC & OPT 11 ASSY(1/2) IC3201-1/2
JA3202 SETUP MIC 2 CN3202
MIC

CN5820 CN5806
(11P)

I
OPT IN

MIC & OPT ASSY(2/2)

5

FV L

7

CN3207
(11P)

2

CN3205

M5220FP 3 1 2 MIC AMP Q3204

C

H
MIC AMP ASSY

VIDEO L

3 CN3204

FV L

3 CN3206

R R
MOTHER ASSY(4/5)
OPT OPT COAX OUT IN IN

J

FRONT A/V ASSY
IC3502-2/2 NJM2068D 6 7 5 IC3421 AK5383VS Front A/D Converter CN5816 CN3403 (30P) (30P) 4 (F) ADFFDT 15 7 7 5

MOTHER ASSY(3/5)
CN5810
(17P)

CN702
(17P)

8

AF DATA

10 CN709

VSX-49TX ONLY
SLOUT FLOUT COUT

22 23 26 27 19

20

24

IC3461 AK5383VS Surround IC3701-2/2 IC3702-2/2 A/D Converter 6 7 6 7 5 (S) 4 5 15 5 IC3601-2/2 IC3602-2/2 6 7 6 7 5 5 IC3441 AK5383VS C/SW A/D Converter 4 15 5 IC3801-2/2 IC3802-2/2 6 7 6 7 5 5 IC3481 AK5383VS Back A/D Converter 4 15 5
(SB) (C)

3

ADSRDT

3

4

AS DATA

14

17

SBLOUT

18 IC3401 TC9163AF A/D Mode Selector

DIR & DIT DSP 1 & 2 DSP U-COM RF Demodulator
5
ADCWDT

SLOUT FLOUT COUT SBLOUT

IC3462-2/2 UPC4570C 5 7 (S) 6

IC3901 BU4052BCF Audio MR Function Selector

CN3201
(5P)

5
OPT5 IN

5 CN5804
(5P)

CN5809
(9P)

8
F OPT

2

CN703
(9P)

CN707

D

5

6

AC DATA

12

1

ADSBDT

1

2

AB DATA

16

S

DSP ASSY

14
1 2 3 4

5

6

7

8

VSX-49TX, VSX-47TX

R MOTHER ASSY(5/5)
CN5814
(20P) (MR) (F)

CN5820
(17P)

12 16 8 4
(C)

4 8 14
(9P)

VFUNCL MR OUTL RECL

CN5817 8
MC C

CN5002
(9P)

(SB)

8 4 1 13 5 9 20 24 28 CN5001
(30P)

CN5815
(17P) (F)

4 1

MC SDL

2 14 6 10
SBLO SLO CTO FLO (SB) (C) (S) (SB) (S) (C)

EXFLIN EXSBLIN EXCIN EXSLIN SBLIN SLIN CIN

13 5 9 20 24 28

14 10 6 2
(17P)

Front Main Volume Pre-Amp IC5021 (SB) IC5022-1/2 TC94A07F OPA2134PA EXSBL (F) 3 IN 7 5 1 2 Surround Back Main Volume Pre-Amp IC5001 IC5181-1/2 IC5081 IC5082-1/2 NJM2068D IC5181-2/2 TC9274N-016 TC94A07F NJM2068D Mode Selector OPA2134PA 2 (SB) 3 1 6 7 7 5 1 3 5 6 5 2 (F) L/SW 4 Main Volume Pre-Amp IC5041 2 IC5042-1/2 TC94A07F OPA2134PA 3 3 (SB) 7 5 1 16 19 2 18 Surround (C) (C) Main Volume Pre-Amp 8 10 IC5061 IC5062-1/2 TC94A07F 7 OPA2134PA (S) 3 (S) 13 14 7 5 1 2 11 IC5083-1/2 UPC4570C 2 1 3 12

IC5043-1/2 UPC4570C 2 1 3

(C)

EXC IN

Q VR & PRE OUT ASSY
(F)

A

PREOUT L FRONT L

(SB)

SB L

(C)

PREOUT CENTER

(S)

SURROUND L

B
14
FL SL (F) (S)

CN5818
(30P) (F)

CN5813

3 CN5819
(24P)

FLIN

(F)

3 CN5003
(24P)

IC5023-1/2 NJM2068D 2 1 3 6 7 5 IC5023-2/2 NJM2068D

12 12 14 15 CN5006 IC5084-2/2 (14P) BU4052BCF Surround Back Selector 13 10 8

K
HEADPHONE ASSY
CN3203
(4P)

(SBL) SBL CT (C)

3

PHONES

HPL

Voltage Amp Current Amp IC4101 IC4102,IC4103 PA9008A PBD001A,PBD002A

3 CN1206 J4801
(F) BRN

CN1203 RY1205
FLO CO SLO

(4P)

RY1201 (F) RY1202

CN1201

SPA FL FR

1
(C)

1 4
RY1203

(F) (S) (SBL)

FL SL SBL

IC4401 PA9008A 1 3 5 7
(8P)

IC4402,IC4403 PBD001A,PBD002A

4
(S) YLW

2

2
RY1204

(C)

IC4601 PA9008A

IC4602,IC4603 PBD001A,PBD002A

(SBL) BLU

3

SBLO

3

(S)

CT (C)

CN4801 7 VSX-49TX ONLY CN4805
(15P)

V
C

POWER AMP (L) ASSY
(C)

SL
(SBL)

C

SR SBL SBR

CN4805 CN4805
(15P) (15P)

CN4807
(15P)

7 CN4807 IC4301 (15P) PA9008A Voltage Amp

6
(15P)

CG1+

6 IC4302 PBD001A Current Amp CN4806

CN4807

1 | 4

1 | 4
(C)

J1206 3

CN1202

I

DSP 3 ASSY
(C)

ORG

CN4808 10 | 13 10 | 13 3

FBL

CN501

CN4806 8
CG1-

DSP 3

W

8 IC4303 PBD002A Current Amp

CN1007
RY1003 (SBL)

CN4808

SPB FL

POWER AMP (C) ASSY
Front Digital Note: Shows the DAC 10 ASSY. D/A Converter Filter IC6105-2/2 IC6105-1/2 IC6101 IC6021 CN6002 IC6103 PCM1704U-1 NJM5534DD NJM2068D NJM2068D DF1706E 6 CN6004 2 F 7 3 1 24 1 14 FLO 1 (F) (17P) 1 5 2 2 3
(C) CW S SB

AJ X
(F) (C) (S) (SB)

FR CN1006

POWER AMP (R) ASSY
(MR) (REC)

SP (B) ASSY

: Audio Signal Route (F) : Audio Signal Route (C) : Audio Signal Route (S) : Audio Signal Route (SB)
(SBL)

: Audio Signal Route (MR) : Audio Signal Route (REC)

D

Same as the above circuit.

(S) (SB)

6 10 14

CTO SLO SBO

U

DAC 10 ASSY (VSX-49TX) DAC 8 ASSY (VSX-47TX)

: Audio Signal Route (SBL)

15
5 6 7 8

1

2

3

4

VSX-49TX, VSX-47TX
3.1.2 Video and Display Blocks Video Block
Y

(Y) (C)

A

DVD/LD TV/HDTV SAT VCR1 VCR2 VCR3 VSX-49TX Only

14

C Y C Y C Y C Y C Y C

15

IC2301 TC74LVX4051FT Video Function Selector (Y) (Y)

IC2303 TC74HC4053AFT S/OSD SW (Y)
5 4

D S-VIDEO ASSY
(Y) (Y) (Y) IC2307-1/2 TK15420M +6dB 3 1 2 IC2307-2/2 TK15420M +6dB 6 7 5 (Y)
75 75 Y C

2

3

5

13

14

MONITOR OUT

1

12

12

(OSD) (Y)

4

(Y) IC2304 TC74HC4053AFT S/O OSD SW (C)
5 4

(C)

(C)

75 75

Y C

MONITOR OUT 2

(C)
14

(C) (C) IC2308 NJM2296M REC OUT Selector (Y) (Y)
13 1 15

15

(Y)

13

14

(C)

(C)
2 3

12

(Y) (C)

Y

(C)

VCR1 OUT
C Y

(OSD)

(C)

5

2

15 3

1

(C) (C)

VCR2 OUT
Y

11

(C)

B
12

VCR3 OUT VSX-49TX Only

4

IC2302 TC74LVX4051FT Video Function Selector (C) (OSD)

IC2309 NJM2296M REC OUT Selector (C) (C)
13 1

(C)

(C)

(Y)

CN2301 14 13 (17P)
FC FY 14 13

15 3

CN5823
(17P)

11

CN5806
(11P) 7 FV-C FV-Y F-VIDEO FV

5 3 1 CN2306 (8P) OSD C Y

CN3302
(8P)

R
MOTHER ASSY(1/2)

9 10 18 (19P)

(Y) (C) (OSD)

Y C OSD VIN VOUT

1 3 5

(Y) (C) (OSD)

VSX-49TX Only CN3304
(18P) 1 VIN VOUT

CN5822 (OSD)

1 3 7 (12P)

OSD

(OSD)

J
VIDEO

FRONT A/V ASSY
5 Y 6 8 (8P) F-VIDEO FV-Y FV-C

H
5 6 8 (8P)

MIC AMP ASSY
2 3 5 (11P) VOUT OSD VIN F-VIDEO

(OSD)

C

FV-Y FV-C

S-VIDEO

C

CN3204

CN3206

CN3207

VIDEO CONNECT ASSY
(12P)

G

CN3301

(Y) (C) (OSD) (CY) (Cb) (Cr)

9 3 5 7 15 13 11

(Y) (C) OSD(OSD)
Y C CYOUT CbOUT CrOUT

(CY) (Cb) (Cr)

CN3303
(10P)

5 CYOUT

3 CbOUT 3

1 CrOUT 1 3

FV

CN2101
(19P)

18

1

3

7

CN2102

CN2502
(10P)

5

(CY)

(Cb)

IC2101 TC74HC4051AFT Video Function Selector (COMPOSITE) DVD/LD TV/HDTV SAT VCR1 IN VCR2 IN VCR3 IN VSX-49TX Only
14 15 2 5 1 12 4 3

IC2103 TC74HC4053AFT OSD Input Selector
5 3 4

IC2105-1/2 TK15420M +6dB AMP 3 1 75 2 (OSD) 6 5

F
COMPONENT ASSY
MONITOR OUT MR OUT IC2501 TC74LVX4052FT Video Function Selector (CY)
14 13

13 1

(Cr) IC2503 TC74LVX4053FT Input SW (COMPONENT) 3 (CY) 2

14 15 4

IC2102 TC74HC4053AFT I/O Selector
13 1 14 15 VI VO

7

75

(CY) (Cb) (Cr)

1(CY) 75 IC2105-1/2,2/2 OPA2652U +6dB AMP 7 (Cb) 75

(OSD)
14 15 2 CVOUT 3

IC2105 (2/2) TK15420M +6dB AMP

Y

(CY) IC2104 13 PDC084A 15 OSD
CVIN

6 (Cb) 5

Cb

Y COMPONENT Cb IN1 Cr
14 5 13 3

D

(Cb) 3 (Cr) IC2502 TC74LVX4052FT Video Function Selector (Cb, Cr) (Cr) 2 1
75

5

Q2108

IC2107 TC74HC4051AFT Video MR Function Selector (COMPOSITE)

(Cr)

Cr

D COMPOSITE ASSY
2 3

IC2106-1/2 OPA2652U +6dB AMP

16
1 4

5

6

7

8

VSX-49TX, VSX-47TX

Display Block

M DISPLAY ASSY
V3001 FL Display IC3002 BU2092F LED Driver IC3001 PD5686A Display U-COM

3002 3102

O
MULTI JOG ASSY

A

3003 3103

P
VOL ASSY

3004 3104 REMOTE RECEIVER UNIT
11 RMC

N
INPUT SEL ASSY

CN3001
(17P)

7 17 IR IN RMC SR OUT 17 16 15 (17P)

CN5807
(17P)

SR IN

16 15

R
MOTHER ASSY (2/2)
B

CN2002 SR OUT
(17P)

CN5821 IC3001 PD5685A9 Main U-COM

B A/V I/O ASSY
: VIDEO SIGNAL ROUTE
(Y) VSX-49TX Only (C)

Control Signal

(CY) (Cb) (Cr)

: Y SIGNAL ROUTE (COMPONENT) : Cb SIGNAL ROUTE (COMPONENT) : Cr SIGNAL ROUTE (COMPONENT)

(OSD)

: VIDEO SIGNAL ROUTE (OSD)
VSX-49TX Only

: VIDEO SIGNAL ROUTE (Y) : VIDEO SIGNAL ROUTE (C)
IC2851 TC90A49F Y/C SEP.

VIN VOUT Y C OSD CYOUT CbOUT CrOUT

Q2904
1 9 3 5 7 15 13 11 5 AIN

YOUT 24

(Y)

Q2853

IC2859-1/3 TC74LVX4053FT OSD SW (Y)
14 13

(Y)

IC2855-1/2 TK15420M Y 0dB Buffer 3 1 2

IC2856-1/2 TK15420M Y Invert Buffer (Y) 2 3 IC2855-2/2 TK15420M C 0dB Buffer 6 7 (C) 5 1 IC2856-2/2 TK15420M Y/C MIX 5 7 6

(Y) (C) (OSD) (CY) (Cb) (Cr)

COUT 20

Q2854 (C)

IC2854-1/2 TK15420M LPF (Chroma) 2 3 1 (C)

IC2859-2/3 TC74LVX4053FT
15 1

C

CN2852
(18P)

(Y) (C) (C)

IC2860 TC74LVX4053FT OSD SW (C) (C)
3 5 4

(Y) (OSD) (OSD)
3 5 4

(Y)

IC2854-2/2 TK15420M 0dB Buffer 6 5 7 (CY)

IC2859-3/3 (Y) TC74LVX4053FT (CY) (C) IC2857-2/2 TK15420M IC2853 TA1270BF Chroma Decoder (C) (CY)
6 20 22 8 21

(Cr)

E

V-CONVERT ASSY

(C)

5 6

IC2858-2/2 TK15420M 0dB Buffer 6 7 (Cb) 5 IC2858-1/2 TK15420M 0dB Buffer 3 1 2

(Cb)

7

(Y)

0dB Buffer 3 2 IC2857-1/2 TK15420M 1 (Y)

(Cb) (Cr)

(Cr)

D

(CY) (Cb) (Cr)

(CY) (Cb) (Cr)

17
5 6 7 8

1

2

3

4

VSX-49TX, VSX-47TX
3.1.3 Power Supply Block Power Supply Block
A

RY-24V 7

AJ SP (B) ASSY
+13V

CN1205
(8P)

CN1103
(8P) RY-24V

CN1005
1 7 ST+12V RY-24V

7 1 7

IC1102 NJM79M24FA O I REG.

CN1105 CN1301 SW1301
1 3 1

AC
POWER SW ASSY

POWER
3

RY-24V

AD
SP (A) ASSY
+5VP

RY-24V

CN1102 CN1001
(10P) 1 9 1 9 (7P)

T1101
I

3

FAN -27V ST+5.6V

REG.

O

5

CN1104 D1101 IC1101 (14P) NJM78M56FA

RY1002
3

CN1101
(10P)

CN1002
LIVE 1 2

FU1

RY1001
2 1

AB AC PRIMARY ASSY AI AA
LOCAL SUPPLY ASSY
+5V REG.
1 3 3 VP+9V 1 I O 1 (2P) +5VP

NEUTRAL

CN1003

AM
B

R MOTHER ASSY
FAN -27V ST+5.6V 3 5 (14P) VST5

TRANS (A) ASSY

AK
DIODE ASSY
GRY D1501 D1502 RED BLU 4 +VL (+54V) -VL (-54V) BRN

VL AC1

DSP DIODE ASSY
4

CN5801

D1903

VL AC2

CN1904

J4002

CN1601
5 4 3 2 1 VP AC2 VP AC1 VD AC2 VD CT VD ACT 12 11 10 9 FU6 2A 8 VA AC2 VA CT VA AC1 FL AC2 FL AC1 FL VF 7 6 5 4 3 2 1 2 3 (4P) FL AC2 FL AC1 FL VF 1 2 3 I FU7 2A FU8 2A FU5 2A FU4 4A

J4002 CN1904 CN1802
1 2 3 4 5 6 7 8

IC4011 LM10851T-5.0

J4001 CN4004
(9P)

CN4001
1 2 3 4 5 6 7 8

VP AC2 VP AC1 VD AC2 VD CT VD AC1 VA AC2 VA CT VA AC1

D4002 IC4023 IC4024 D4003 IC4035 IC4036 D4004

IC4021 LM2940CT-5.0 I IC4022 NJM79M05FA I IC4033 NJM78M56FA I IC4031 LM2940CT-5.0 I IC4032 NJM79M05FA I

CN5805
(9P) +5VD -5VD +5.6VU +5.6VV -5.6VV +15VT +20VA -20VA 1 2 5 3 4 V-5V 6 V+20V 7 8 V-20V V+5D

REG. REG. REG. REG. REG. REG. REG. REG.

O O O O O O O O

1 2 5 3 4 6 7 8

T1 Power Transformer

V-5D V+5U V+5V

CN1702
7 6 5 4 3 2

V12T

1 2 O

AC2 AC1 VH

IC4043 IC4047 NJM78M15FA I IC4041 NJM7820FA I IC4042 NJM7918FA I IC4045 J4004 IC4046 CN4002
(3P) VH AC1 VH AC2 1 3 (6P) 1 3

IC1703

CN1801
(12P)

CN1803

3 REG. CN1901 Q1901 CN1902 (4P) (4P)

C

D1701 CN1701
(3P) 1 3 VH AC1 VH AC2

AL
FUSE ASSY

AE
FL SUPPLY ASSY
AC1

+27VF -27VF +55VH -55VH

AN
TRANS (B) ASSY
AC2 VH

D4005

Q4051 I O REG. Q4052 I O REG.

4 6

M V
+VH 10 11 -VH (15P) -VH +VH 10 11 7 6 -VH +VH 7 6

3001
+43V AC1 AC2

3

2

1

CN5807
(17P)

CN3001
U+5.6V ST+5.6V (17P) 1 2 U+5.6V ST+5.6V

17 16

V+5U VST5

POWER AMP (L) ASSY

DISPLAY ASSY

CN5004 6 4 3 1
(6P) 2 1 4 -VH +VH V+20 2 1 4 5 7 8 10 (24P) V+27 V-27 V+20 V-20 5 7 8 10

V+27 V+20

CN4807

CN4805
(15P) +VH

CN4803
(11P)

CN4809
(11P) A+20

CN4811
(8P)

D

W

POWER AMP (C) ASSY

IC5002 CN5005 V+16 NJM78M15FA (8P) O I REG.
O V-16

CN5003

CN5819
(24P)

V-20

5 6 -VH

-VH +VH

5 6

REG.

I

CN4804
(9P)

CN4810
(9P)

IC5003 NJM79M15FA

X POWER AMP Y POWER AMP (R) ASSY (BR) ASSY
18
1 2 3

Q VR & PRE OUT ASSY
4

5

6

7

8

VSX-49TX, VSX-47TX

S DSP ASSY
CN709
(16P)

T DSP3 ASSY
CN501
(16P) VD5V 2 2

VSX-49TX Only A VSX-47TX Only

CN704 VDD5
(2P) 2 +5VP

IC713 PQ3DZ13 VD3U I O REG. IC305 PQ3DZ13 VD3A O REG.

IC505 PQ3DZ13 VD3C I O REG.

I

U DAC10 ASSY
CN706
(14P) 1

U DAC8 ASSY
CN6901
(14P) VDD5 1 I

CN6001
(14P) VDD5 1

IC415 PQ3DZ13 VD+3B I O REG. IC416 PQ7VZ5 V1R8 O REG.

I

IC6001 PQ3DZ13 V+3DD O REG.

IC6901 PQ3DZ13 V+3DD O REG.

I

V-15 V+15

V-5D V+5D

V-15 V+15 1 3

V+5D NC 4 7

1 3 4 7 CN6003 (7P) V+5D V+15 V-5D V-15

CN6903
(7P)

CN5812 1 3 4 7 (7P)
V+15 V-15 V-5D V+5D

B

A FM/AM TUNER MODULE
CN5802
I

CN2705
(13P) +10V 7 +10V

Q5805 O REG.

(13P) 11

IC5808 NJM78M15FA V+15 I O REG. IC5806 NJM78M15FA VC15 I REG. O
VC15 VE15

B A/V I/O ASSY
CN5821
(17P) 3 6 VC15I VE15I

C COMPOSITE ASSY
V+5V V-5V 9 10 V+5V V-5V

CN2002
(17P) 3 6 VE15 VC15

IC5809 NJM79M15FA I REG. O
V-15

CN2102
(12P)

IC5807 NJM79M15FA I O REG.
VE15

D S-VIDEO ASSY
CN5823
(17P) V+5 V-5 16 15 V+5.6V V-5.6V

CN3301
(12P) 9 10

F COMPONENT ASSY
CN3303
(10P) 7 8 V+5V V-5V

C

CN2301
(17P) 16 15

V+5S

CN2306
(8P) 7 8 V+5V V-5V

CN3302
(8P) 7 8

CN2502
(10P) 7 8

V+5C

V-5S

V-5C

CN3304
(18P)

17 18

H
CN5806
(11P) V+20 V-20 6 11 A+20V A-20V

MIC AMP ASSY
A+20V

G VIDEO CONNECT
ASSY
17 18

CN2852
(18P)

CN2307
(11P) 6 1 A-20V

VSX-49TX Only

V+5Z V-5Z

E V-CONVERT ASSY L
ANALOG IN & A/D ASSY
D

CN5816
(30P) VC15 VE15 V+5D 18 19 20 21 VC15I VE15I VC5A VC5D

CN3403
(30P) 18 19 20 21 VE15I VC5A L3401 VC5D L3402 I VC5F VC5AA L3421 VC3A VC3F L3422 O VC15I

REG. IC3402 PQ3DZ13

19
5 6 7 8

1

2

3

4

VSX-49TX, VSX-47TX 3.2 OVERALL WIRING DIAGRAM
A

J

FRONT A/V ASSY (AWX7902)

I
MIC & OPT ASSY (AWX7875)

O
MULTI JOG ASSY (AWX7869)

J3002

ADX7390

M DISPLAY ASSY
SHIELD PLATE
J3003 4042 AMR7390

(VSX-49TX : AWX7864) (VSX-47TX : AWX7865)
J6003 DE012VF0

ADX7387

H
ADX7386

MIC AMP ASSY (AWX7872)

P
VOL ASSY (AWX7870)
ADD7329

DSP DIODE ASSY (AWX7958)

POWER AMP (C) ASSY (AWX7884)

B

J5802

U U 1/2, U 2/2

DAC 10 ASSY (VSX-49TX : AWK7725) DAC 8 ASSY (VSX-47TX : AWK7726)

W
ADX7375 J5805 ADX7378

AA
ADX7374

LOCAL SUPPLY ASSY (AWX7887)
ADX7373

X AH

POWER AMP (R) ASSY (AWX7883)
4808 4808

V
POWER AMP (L) ASSY 4807 (AWX7882)
J4804 4807

POSISTER (R) ASSY (AWX7846)
ADX7365

ADX7376

AI
ADX7369

Z

POWER AMP (G) ASSY (AWX7886)

POSISTER (L) ASSY (AWX7844)
ADX7365

AG

S S 1/5- S 5/5

DSP ASSY (VSX-49TX : AWK7719) (VSX-47TX : AWK7720)

J5002

ADX7381
J4803 ADX7372

C

ADX7381

J5001

ADX7382

L L 1/3- L 3/3

VR & PRE OUT ASSY (VSX-49TX : AWX7888) (VSX-47TX : AWX7917)

VSX-49TX ONLY

ANALOG IN & A/D ASSY (VSX-49TX : AWX7878) (VSX-47TX : AWX7879)

Q Q 1/3- Q 3/3

Y POWER AMP (BR) ASSY (AWX7885) VIDEO CONNECT ASSY G (VSX-49TX :: AWX7876) (VSX-47TX AWX7877)
S-VIDEO ASSY (VSX-49TX : AWX7948) (VSX-47TX : AWX7949) COMPOSITE ASSY (VSX-49TX : AWX7942) (VSX-47TX : AWX7943) A/V I/O ASSY (VSX-49TX : AWX7938) (VSX-47TX : AWX7939) COMPONENT ASSY (VSX-49TX : AWX7953) (VSX-47TX : AWX7954)

D

T

DSP3 ASSY (AWK7727)

ADX7391

B

C

D

(BLK)

20
1 2 3 4

F

5

6

7

8

VSX-49TX, VSX-47TX
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
STANDBY ASSY (AWX7901) INPUT SEL ASSY (AWX7868) FL SUPPLY ASSY (AWX7871)

ADD7331

A

AF

N
J3304

AE
J3301
J1801 ADX7377 J1601

ADX7385 ADX7385

AL FUSE ASSY (AWX7843)

AN
TRANS (B) ASSY (AWX7839)

ADX7379 ADX7380
ADX7384 ADX7383 ADX7383

DIODE ASSY (AWX7841)
C1 ACH7164

POWER TRANSFORMER (ATS7320)

B

ADX7363

ADX7384

AK
ADX7360

AM
TRANS (A) ASSY (AWX7838)

ADX7361

ADX7366

(GLY)

J1501

C2 ACH7164
J1208 J1207 J1201

ADX7359
(BLK)

(GLY)

ADX7368

(BLK)

ADX7368

POWER SW ASSY (AWX7840)

AC
C

ADX7362 ADX7370 ADX7371
WHT : NEUTRAL

AB
AC PRIMARY ASSY (AWX7834)
ADD7332

ADD7334

VSX-49TX ONLY

K ASSY (AWX7874)
ADX7364

HEADPHONE

E
V-CONVERT ASSY (AWX7952)

ADD7333

J1206

FM/AM TUNER

AD
SP (A) ASSY (AWX7848)

CN1007

ORG : LIVE

A MODULE (AXQ7237)

AJ

AC INLET ASSY : VKP2251

R
MOTHER ASSY (VSX-49TX : AWX7890) (VSX-47TX : AWX7891)

SP (B) ASSY (AWX7852)
FU1 : AEK-306 (12A/125V)

D

21
5 6 7 8

1

2

3

4

VSX-49TX, VSX-47TX

3.3 FM/AM TUNER MODULE
A

A FM/AM TUNER MODULE (AXQ7237)
(FM)

(FM)

(FM)

(FM) (FM) (FM) (FM) (FM)

(AM)

B
(FM)

(FM)

(AM)

(FM) (AM) (FM)
(AM)

(FM)

(AM)

(AM)

C

D

22

A
1

2

3

4

5

6

7

8

VSX-49TX, VSX-47TX

(TX) (AM) (FM)

: AUDIO SIGNAL ROUTE (TUNER) : AM SIGNAL ROUTE : FM SIGNAL ROUTE
A

CN2705
(AM)

(AM) (AM)

(AM)

(TX)

(TX)

R
CN5802

(AM)

(AM)

(TX)

B

(TX) (TX) (FM) (TX)

C

D

: The power supply is shown with the marked box.

5

6

7

A
8

23

1

2

3

4

VSX-49TX, VSX-47TX

3.4 A/V I/O ASSY
A

MR MUET ON : +4.3V OFF : -20V

(MR)

(MR)

(MR)

(MR)

MR Volume

(DVD)

(DVD)

B
(DVD)

A/V Function Selector
(DVD) (DVD) (DVD)

(MIC) (F)

(MIC) (FV) (DVD)

(FV) (MIC)

(REC)

C

(REC)

(REC)

(REC)

(DVD)

(F)

(REC)

D

VSX-49TX ONLY

VSX-47TX ONLY

24

B
1

2

3

4

5

6

7

8

VSX-49TX, VSX-47TX

B A/V I/O ASSYAWX7938) (VSX-49TX :
(VSX-47TX : AWX7939)
(MR) (MR) (MR)

A

(MIC) (MR) (MR) (MIC)

R
B
(MIC) (FV) (F) (DVD) (MIC) (FV) (F) (REC) (REC) (MIC) (FV) (FV) (MR) (REC) (DVD) (MR) (REC) (MR) (REC) (MR) (F) (F)

A/V MR Function Selector

R
C
(DVD) (REC) (MR) (MIC) (F)

: AUDIO SIGNAL ROUTE (DVD) : AUDIO SIGNAL ROUTE (REC) : AUDIO SIGNAL ROUTE (MR) : AUDIO SIGNAL ROUTE (MIC) : AUDIO SIGNAL ROUTE (F) : AUDIO SIGNAL ROUTE (FV)

(REC)

(REC) (FV)

CN5820

(MR)

(REC)

(F)

CN5821
D 7

(MR)

5

6

B
8

25

1

2

3

4

VSX-49TX, VSX-47TX

3.5 COMPOSITE ASSY
A

(VSX-49TX AWX7942) C COMPOSITE ASSY (VSX-47TX :: AWX7943)
(DVD) (DVD)

Video Function Selector (Composite)

I/O Selector (Composite)

B
(DVD)

Q2106 2SC4081

Q2107 2SC4081

Q2101 2SC4081

VSX-49TX ONLY

Video MR Function Selector (Composite)

Clamp

C

REC OUT Selector (Composite)

D

VSX-49TX ONLY

26

C
1

2

3

Q2102 2SC4081

Q2103 2SC4081

4

5

6

7

8

VSX-49TX, VSX-47TX

: The power supply is shown with the marked box.
(DVD)

A

: VIDEO SIGNAL ROUTE (DVD) : VIDEO SIGNAL ROUTE

(OSD)

: VIDEO SIGNAL ROUTE (OSD)

6dB AMP.

OSD Input-Selector

(OSD)

(OSD) (OSD) (OSD)

B
Q2105 2SC4081 Q2108 2SC4081

(OSD) (OSD) (OSD)

Port Expander

OSD
(OSD)

G CN3301

C

Port Expander
Q2104 UN5212

D

R
5

CN5822
6 7

C
8

27

1

2

3

4

VSX-49TX, VSX-47TX 3.6 S-VIDEO ASSY
(Y) (Y)

(Y)

(C)

A

(C)

Q2302 2SC4081

(Y)

Video Function Selector (Y)

Video Function Selector (C)

(Y)
Q2303 2SA1576A

(Y)

(Y)

(Y)

(C) (C)

(Y)

(Y) (C)

(Y) (C)

(Y)

(C)

B

Port Expander

(C) (Y)

(C) (Y)

(Y)
(C)

Sync. Sep.

C

VSX-49TX ONLY
(Y)

(C)

(C)

(Y)

(Y)

(Y)

(C)

(Y)

REC OUT Selector (Y)

(C)

REC OUT Selector (C)

(Y)

(C)

D

(Y)

(Y) (C)

(Y) (C)

VSX-49TX ONLY

28

D
1

2

3

(C)

(C)

4

(Y)

5

6

7

8

VSX-49TX, VSX-47TX

(Y)

(Y)

(Y)

(OSD) (Y)

(OSD)

(VSX-49TX AWX7948) D S-VIDEO ASSY (VSX-47TX :: AWX7949)
(Y) (C)

A

(Y)

(OSD)

: Y SIGNAL ROUTE : C SIGNAL ROUTE : VIDEO SIGNAL ROUTE (OSD)

S/OSD SW (Y)

(Y)

(OSD)

6dB AMP.

(Y)

(Y)

(Y)

(Y)

(Y)

(Y) (C)

(Y) (C) (OSD)

(OSD)

(C)

(OSD)

(C)

(C)

(C)

(C)

(C)

(C)

B
S/OSD SW (C)
(C) (C)

(C)

(C) (C) (C)

(C)

(C) (C) (C)
(C)

DC SW

C
(Y)

(C)

(OSD)

G
CN3302

(Y)

(C)

D
(C) (C)

R

CN5823

: The power supply is shown with the marked box.

5

6

7

D
8

29

1

2

3

4

VSX-49TX, VSX-47TX

3.7 V-CONVERT ASSY (VSX-49TX ONLY)
A
(Y)

(Y) (Y) (C)

(Y)
Q2853 2SC4081

Q2852 2SA1576A

Q2851 2SA1576A

Clock Gen.

Y/C Sep.
(C)
Q2854 2SC4081

(C)

Q2904 2SC4081

B

(Y) (C) (Y) (OSD) (Y)

(CY)

(Cr)

0dB Buffer
(Cb)

G
CN3304
(Cr)

(Cr) (CY)

CHROMA Decoder
(Cb) (Y) (CY)

0dB Buffer
(C)

(C) (C) (Y)

C

(Cb)

D

30

E
1

2

(C)

3

4

5

6

7

8

VSX-49TX, VSX-47TX

A
(Y) (Y)
Q2901 2SC4081

E
(Y)

V-CONVERT ASSY (AWX7952)

(C)

Y 0dB Buffer
(C) (C) (Y)

Y Invert Buffer

LPF (CHROMA)

OSD SW (Y)
(C) (C) (Y) (OSD)

OSD SW (C)

(Y)

(Y)

(Y) (Y) (Y)

Q2902 2SA1576A

(Y)

(OSD)

(C)

(Y) (OSD)

(Y)

(Y)

(C)

(C)

B
(Y) (CY) (OSD) (CY) (C) (C) (C) (C) (C) (Y)

0dB Buffer
(CY) (CY)

C 0dB Buffer 0dB Buffer

Y/C MIX

(Cr)

(Cr) (CY)

Port Expander

(Cb)

(Cb)

0dB Buffer
(Cr)

+9V

(Cb) (CY)

(Cb)

C

: VIDEO SIGNAL ROUTE
(Y) (C) (CY) (Cb) (Cr) (OSD)

: Y SIGNAL ROUTE : C SIGNAL ROUTE : Y SIGNAL ROUTE (COMPONENT) : Cb SIGNAL ROUTE (COMPONENT) : Cr SIGNAL ROUTE (COMPONENT) : VIDEO SIGNAL ROUTE (OSD) D

R CN5825
5

: The