Pioneer Elite VSX-49TXi User manual

ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2002
STANDBY/ON
OFF ON
STANDBY
DVD/LD TV/DVD SAT VIDEO
VIDEO AUDIO
VCR VCR2 VCR3 CD TUNER PHONO
MAC3
CD-R/
TAPE1/MD
MULTICH
INPUT
LISTENING MODE SELECTOR
MASTER VOLUME
INPUT SELECTOR
VSX-49TXi
AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER
UP
DOWN
VSX-49TXi
RRV2644
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-49TXi
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
VSX-49TXI KU/CA AC120V
For details, refer to "Important symbols for good services" .
T-ZZR AUG. 2002 printed in Japan
http://receiverfaq.ru/

VSX-49TXi
20
1234
1234
C
D
F
A
B
E
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
AFM/AM TUNER
MODULE
RMOTHER
ASSY(1/5)
LANALOG IN &
A/D ASSY
R
MOTHER
ASSY(2/5)
R
MOTHER
ASSY(3/5)
R
MOTHER
ASSY(4/5)
SDSP ASSY
IMIC & OPT
ASSY(2/2)
H
MIC AMP
ASSY
I
MIC & OPT
ASSY(1/2)
JFRONT A/V
ASSY
B
A/V I/O ASSY
ANT
DVD/LD
L
VCR1
PLAY L
VCR2
PLAY L
VCR3
PLAY L
TV L
SAT L
IC2001 TC9164AF
A/V Function Selector
IC2002 TC9162AF
A/V MR
Function Selector
PHONE
L
CD L
27
MR VOL
MIC AMP
DIR & DIT
DSP 1 & 2
DSP U-COM
RF Demodulator
IC2051-1/2
UPC4570C
IC2053-2/2
BA4558F
IC2052
M62429FP
3
3
2
2
1
1
L CH
CN2705
(13P)
7 7
CN5802
(13P) CN5814
(20P) CN3401
(20P)
TXL TXL
VFUNCL
MR OUTL
RECL
20 20
CN2002
CN5821
CN3205
CN3202
JA3202
SETUP
MIC
CN5820
MIC FV L
1 12
1
22
12
F OPT
OPT5 IN
2
8
5
CN2001
(17P)
CN5806
(11P)
CN3207
(11P)
CN2001
(17P)
(17P)
(17P)
14
8
4
26
25
24
22
VCR3
REC L
MR
OUT L
VCR1
REC L
VCR2
REC L
VIDEO
L
COAX
IN
OPT
IN
JA1
JA2
DIGITAL
IN
21
18
23
IC3422 TC9163AF
Audio Function Selector
IC3901 BU4052BCF
Audio MR
Function Selector
IC3401 TC9163AF
A/D Mode Selector
IC3461 AK5383VS
Surround
D/A Converter
27
26
24
20
8 7
20
17
19
TAPE1
PLAY L 23
13
11
17
TAPE2
PLAY L 19
TAPE1
REC L 18
TAPE2
REC L
FL IN 22
21
25
IC3423-2/2
M5220P
5
67
SL IN
IC3462-2/2
UPC4570C
5
67
IC3701-2/2
6
57
IC3702-2/2
6
57
IC3424-1/2
UPC4570C
5
67
IC3201-1/2
M5220FP
Q3204
3
21
27
15
14
20
22
415
5
23
24
26
27
IC3421 AK5383VS
Front
D/A Converter
IC3502-2/2
NJM2068D
6
57415
5
IC3441 AK5383VS
C/SW
D/A Converter
IC3601-2/2
6
57
IC3602-2/2
6
57415
5
IC3481 AK5383VS
Back
D/A Converter
IC3801-2/2
6
57
IC3802-2/2
6
57415
5
17
19
18
26
24
23
5
18
25
22
21
20
19
17
1
711
MIC
MIC
CN3206
CN3204
33 FV L
SLOUT
FLOUT
COUT
SBLOUT
FV L
VFUNC
INL
MR LOUT
MC CIN
CN3401
(20P)
8MC SBLIN
4
16
12
EX FLOUT
SBLOUT COUT FLOUT SLOUT
EX
SBLOUT
EX COUT
CN3402
(17P)
6
EX SLOUT
10
14
2
ADFFDT
ADSRDT
ADCWDT
CN3403
(30P) CN5816
(30P) CN5810
(17P)
5
ADSBDT
AF DATA
AS DATA
AC DATA
AB DATA
1
3
7
5
1
3
7
6
2
4
8
CN702
(17P)
CN703
(9P)
CN705
(22P)
CN401
(22P)
CN709
CN707
CN5809
(9P)
CN5804
(5P)
CN3201
(5P)
12
16
14
10
5
AO
1394 MODULE
Refer to section
"3.1.4 1394 MODULE Block".
(S)
(C)
(SB)
(S)
(F)
(F) (F)
(F)
(S)
(C)
(SB)
(F)
(MR)
(MR)
(REC)
(REC)
(REC)
(REC)
(MR)

VSX-49TXi 21
5678
5678
C
D
F
A
B
E
RMOTHER
ASSY(5/5)
QVR & PRE OUT
ASSY
VPOWER AMP (L)
ASSY
W
POWER AMP
(C) ASSY
UDAC 10 ASSY
TDSP 3 ASSY
XPOWER AMP
(R) ASSY
AJ
SP (B) ASSY
EXC
IN
EXSBL
IN
SURROUND
L
1
|
4
1
|
4
7
DSP 3
IC5001
TC9274N-016
Mode Selector
5
4
2
6
3
16 19
18
8 10
7
13
11
12
14
12
14
15
13
Surround
Main Volume
Voltage Amp
Voltage Amp
Current Amp
Surround Back Selector
Current Amp
IC5061
TC94A07F
IC5084-2/2
BU4052BCF
7 5 3
21
PREOUT
CENTER1
L/SW
Main Volume
IC5041
TC94A07F
7 5 3
21
SB L
Surround Back
Main Volume
IC5081
TC94A07F
7 5 3
21
L
L
Front
Main Volume Pre-Amp
IC5021
TC94A07F
7 5
IC5022-1/2
OPA2134PA
Pre-Amp
IC5082-1/2
OPA2134PA
Pre-Amp
IC5042-1/2
OPA2134PA
Pre-Amp
IC5062-1/2
OPA2134PA
Front Digital
Filter
IC6021
DF1706E
D/A Converter
Same as the above circuit.
IC6101
PCM1704U-1
1 24 2
31
1 14
IC6103
NJM5534DD 6
57
IC6105-2/2
NJM2068D
3
21
IC6105-1/2
NJM2068D
3
21
K
HEADPHONE
ASSY
PHONES
VFUNCL
MC C
MC SDL
EXFLIN
EXSBLIN
EXCIN
EXSLIN
SBLIN
SLIN
CIN
FLIN
MR OUTL
RECL
SBLO
SLO
CTO
FLO
CN5815
(17P)
CN5814
(20P) CN5820 (17P)
8
4
16
12
14
8
4
CN5817
(9P)
CN5818
(30P)
CN5819
(24P)
CN5813
(17P)
4
8
3
6
10
14
2
5
9
13
1
IC5181-1/2
NJM2068D
2
31
IC5181-2/2
NJM2068D
6
57
IC5023-1/2
NJM2068D
2
31
IC5023-2/2
NJM2068D
IC4601
PA9008A IC4602,IC4603 PBD001A
6
57
IC5043-1/2
UPC4570C
3
2
1
IC5083-1/2
UPC4570C
3
2
1
6
2
10
14
28
24
20
CN5002
(9P)
CN5001
(30P)
CN5003
(24P)
4
8
3
5
9
13
1
28
24
20
FL
SL
SBL
HPL
CT
CN5006
(14P)
10
8
12
14
FL
SL
SBL
CT
F
CW
S
SB
C
CN4801
(8P)
CN4805
(15P)
2
CN6004
(17P)
CN4805
(15P)
J4801
7
CN4807
(15P)
6
CN4807
(15P)
CN4807
(15P)
CN4808
5
7
3
12
3
4
1
FRONT
IC4301
PA9008A IC4302 PBD001A
CG1+
ORG FBL
FLO RY1201
RY1202
RY1203
RY1204
CO
SLO
SBLO
6
CN4805
(15P)
3
3
CN3203
(4P)
CN1206
(4P)
3
J1206
CN1007
CN1006
10
|
13
10
|
13
Current Amp
CN4806
8
CN4808
CN501
CN6002
IC4303
PBD002A
CG1- 8
CN4806
IC4401
PA9008A IC4402,IC4403 PBD001A
IC4101
PA9008A IC4102,IC4103 PBD001A CN1203
2
3
4
1
CN1201 SPA
FL
FR
SPC
SL
SR
SBL
SBR
SPB
CN1202
FL
FR
RY1003
FLO : Audio Signal Route (F)
: Audio Signal Route (C)
: Audio Signal Route (MR)
: Audio Signal Route (REC)
: Audio Signal Route (S)
: Audio Signal Route (SB)
: Audio Signal Route (SBL)
3
6CTO
10 SLO
14 SBO
(C) (C) (C)
(C)
(C)
(C)
(S)
(S) (S) (S)
(S)
(S)
(SB)
(SB)
(SB) (SB)
(SBL)
(SB)
(MR)
(F)
(F)
(F)
(F) (F)
(F)
(S)
(S)
(S)
(C)
(C)
(C)
(C)
(C)
(C)
(F) (F)
(C)
(S)
(SB)
(SBL)
(C)
(S)
(SB)
(SBL) (SBL)
(SBL)
(SBL)
(F)
(F) (F)
(F) (F)
(C)
(C)
(SB)
(SB)
(MR)
(REC)

VSX-49TXi
22
1234
1234
C
D
F
A
B
E
14 13
3 15
14 13
DS-VIDEO ASSY
CCOMPOSITE ASSY
R
MOTHER
ASSY(1/2)
JFRONT A/V
ASSY HMIC AMP
ASSY G
VIDEO
CONNECT
ASSY
F
COMPONENT
ASSY
DVD/LD Y
Y
C
C
C
C
C
Y
Y
Y
Y
C
IC2301
TC74LVX4051FT
Video Function
Selector (Y)
14
MONITOR
OUT
Y
C
TV/HDTV
SAT
VCR1
VCR2
C
Y
S-VIDEO
VCR3
VIDEO
15
2
5
1
12
4
3
14 3
IC2303
TC74HC4053AFT
S/OSD SW (Y) IC2307-1/2
TK15420M
+6dB
75Ω
5
13
12
14
4
IC2308
NJM2296M
REC OUT Selector (Y)
13
3
15
11
1
IC2302
TC74LVX4051FT
Video Function
Selector (C)
IC2101
TC74HC4051AFT
Video Function
Selector (COMPOSITE)
IC2103
TC74HC4053AFT
OSD Input
Selector
Q2108
IC2107
TC74HC4051AFT
Video MR Function
Selector (COMPOSITE)
FY
FC
OSD
C
Y
Y
C
OSD
VIN
9
7
10
14
15
2
5
1
12
4
3
IC2304
TC74HC4053AFT
S/O OSD SW (C)
5
13
12
2
14
4
IC2105-1/2
TK15420M
+6dB AMP
IC2105 (2/2)
TK15420M
+6dB AMP
75Ω
75Ω
75ΩMONITOR
OUT 2
Y
3
C
IC2307-2/2
TK15420M
+6dB
75Ω
VCR1 OUT
VCR2 OUT
VCR3 OUT
C
15
Y
Y
Y
IC2309
NJM2296M
REC OUT Selector (C)
13
3
15
11
1
CN2301
(17P)
CN5823
(17P) CN5806
(11P)
18
CN5822
(19P)
CN3204
(8P) CN3206 (8P) CN3207 (11P)
CN2101
(19P)
CN2306
(8P)
3 71 CN2102
(12P)
3 15
CN3303
(10P)
3 15
CN2502
(10P)
6
5
8
6
5
8
3
2
5
DVD/LD
MONITOR
OUT
75ΩMR
OUT
15
TV/HDTV
2
SAT
5
VCR1 IN
1
VCR2 IN
12
VCR3 IN
4
F-VIDEO
FV-Y
CVOUT
VI
VO
CVIN
FV-C
F-VIDEO
FV-Y
FV-C
CN3302
(8P)
CN3304
(18P)
CN3301
(12P)
3
1
5
9
3
5
7
15
13
11
1
3
1
7
F-VIDEO
FV
FV-Y
FV-C
18
FV VIN VOUT OSD
VIN
VOUT
OSD
14 3
15
2
5
5 4
3
IC2102
TC74HC4053AFT
I/O Selector
IC2104
PDC084A
OSD
13 14
151
13 15 14 13
3
IC2501
TC74LVX4052FT
Video Function
Selector (CY)
IC2503
TC74LVX4053FT
Input SW
(COMPONENT)
IC2502
TC74LVX4052FT
Video Function
Selector (Cb, Cr)
Y
COMPONENT
IN1 5
4
3
15
1
14
13
Cb
1314
Cr
IC2105-1/2,2/2
OPA2652U
+6dB AMP
IC2106-1/2
OPA2652U
+6dB AMP
75ΩY
75ΩCr
75ΩCb
VOUT
Y
C
OSD
CYOUT
CbOUT
CrOUT
CYOUT
CbOUT
CrOUT
Video Block
21
6
57
3
21
6
573
21
3
21
6
57
(Y)
(Y) (Y)
(Y)
(Y)
(Y)
(Y) (Y)
(Y)
(OSD)(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(Y)
(Y)
(Y)
(C)
(C)
(C)
(C)
(C)
(C)
(Y)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(Y)
(C)
(Y)
(C)
(CY)
(Cb)
(Cr)
(CY)
(Cb)
(Cr)
(CY)
(Cb)
(Cr)
(CY)
(CY)
(CY)
(Cb)
(Cb)
(Cb)
(Cr)
(Cr)(Cr)
(CY)
(Cb)
(Cr)
(Y)
(C)
(C)
(C)
(C)
(C) (C)

VSX-49TXi 23
5678
5678
C
D
F
A
B
E
EV-CONVERT
ASSY
MDISPLAY ASSY
R
MOTHER
ASSY (2/2)
P
VOL ASSY
BA/V I/O
ASSY
SR IN
CN2852
(18P)
IC2855-1/2
TK15420M
Y 0dB Buffer
14 13
IC2859-1/3
TC74LVX4053FT
OSD SW (Y)
VIN
9
3
5
7
15
13
11
1
VOUT
Y
C
OSD
CYOUT
CbOUT
CrOUT
Display Block
Q2904
IC2851
TC90A49F
Y/C SEP.
IC3002
BU2092F
LED Driver
IC3001
PD5686A
Display U-COM
IC3001
PD5685A9
Main U-COM
V3001
FL Display
5
20
24
Q2853
IC2856-1/2
TK15420M
Y Invert Buffer
IC2857-2/2
TK15420M
IC2857-1/2
TK15420M
IC2854-1/2
TK15420M
LPF (Chroma)
15 1
IC2859-2/3
TC74LVX4053FT
Q2854
IC2855-2/2
TK15420M
C 0dB Buffer
IC2856-2/2
TK15420M
Y/C MIX
AIN
YOUT
COUT
IC2860
TC74LVX4053FT
OSD SW (C)
3 4
5
IC2859-3/3
TC74LVX4053FT
3 4
5
IC2853
TA1270BF
Chroma Decoder
6
8
20
21
22
0dB Buffer
IC2858-1/2
TK15420M
0dB Buffer
IC2858-2/2
TK15420M
0dB Buffer
IC2854-2/2
TK15420M
0dB Buffer
11
7
CN3001
(17P)
3003 3103
CN5807
(17P)
RMC
REMOTE
RECEIVER
UNIT
Control Signal
IR IN
RMC
SR OUT
CN5821
(17P)
16
17
15
CN2002
(17P)
16
17
15
SR OUT
O
MULTI JOG
ASSY
3002 3102
N
INPUT SEL
ASSY
3004 3104
3
3
3
2
22
1
11
5
5
6
6
7
7
5
67
5
67
5
67
2
31
2
31
: VIDEO SIGNAL ROUTE
: VIDEO SIGNAL ROUTE (Y)
(Y)
: VIDEO SIGNAL ROUTE (C)
(C)
: Y SIGNAL ROUTE (COMPONENT)
: Cb SIGNAL ROUTE (COMPONENT)
(Cb)
(CY)
: Cr SIGNAL ROUTE (COMPONENT)
(Cr)
: VIDEO SIGNAL ROUTE (OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(CY)
(Cb)
(Cr)
(CY)
(Cb)
(Cr)
(Y)
(Y) (Y) (Y)
(C)
(Y)
(C)
(Y)
(Y) (Y)
(Y)
(Y)
(C) (C)
(C)
(C)
(CY)
(CY)
(Cb)
(Cb)
(Cr)
(Cr)
(CY)
(Cb)
(Cr)
(CY)
(Cb)
(Cr)
(C)
(C) (C) (C)

VSX-49TXi
24
1234
1234
C
D
F
A
B
E
CN1104
(14P)
SP (B) ASSY
AM
AJ
AB
AC
TRANS (A)
ASSY
AK
DIODE ASSY
AN
TRANS (B)
ASSY
AL
FUSE
ASSY
AE
FL SUPPLY
ASSY
AC PRIMARY
ASSY
AI
DSP DIODE
ASSY
AA
LOCAL SUPPLY
ASSY
AD
SP (A)
ASSY
POWER
SW
ASSY
FU1
RY1002
T1101
D1101 IC1101
NJM78M56FA
IC1102
NJM79M24FA
POWER
RY1001
IC4023
IC4024
IC4035
IC4036
IC4047
IC4045
IC4046
2
1
LIVE
NEUTRAL
+13V
RY-24V
RY-24V
RY-24V
RY-24V
CN1002
CN1601
1
2
3
CN1003
CN1005
Power Supply Block
9
1
7
1
7
1
7
CN1105 CN1301
3
1
3
1
SW1301
CN1001
(10P)
CN1701
(3P)
CN5004
(6P)
CN5005
(8P)
CN4811
(8P)
CN4809
(11P)
CN1801
(12P)
CN1803
(4P) CN1901 (4P)
CN1802 CN4001
CN1101
(10P)
CN1102
(7P)
J4001
(2P)
CN4004
(9P)
CN1103
(8P)
5
3
1
9
1
ST+12V
VL AC1
FL VF
VH AC1
VH AC2
VH AC1
+27VF
VH AC2
FL AC1
FL AC2
FL VF
FL AC1
FL AC2 AC2
VA AC1
VA CT
VA AC2
VA AC1
VA CT
VA AC2
VD ACT
GRY
BRN
+VL (+54V)
-VL (-54V)
BLU
VL AC2
ST+5.6V
VP+9V
+5VP
+5VD
+5VP
7CN1205
(8P)
T1
Power Transformer
IC1703
FU4 4A
D1501
D1502 D1903
D4002 IO
D4003
D4004
D1701
Q1901
FAN -27V
CN5801
(14P)
5
3
ST+5.6V
FAN -27V
RY-24V
4
3
2
1
5
CN1702
6
5
4
3
2
7
6
7
8
9
10
11
12
5
4
3
2
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
1
2
5
3
4
6
7
8
CN5805
(9P)
1
2
5
3
4
6
7
8
J4004
(6P)
1
3
4
6
3
2
1
3
4 16
3
2
1
CN1902
(4P)
3
2
1
4
1
2
4
1
2
6
7
CN4810
(9P)
6
5
CN5003
(24P)
8
7
10
5
CN5819
(24P)
8
7
10
5
3
1
RED
VD CT
VD AC2
VP AC1
VP AC2
VD AC1
VD CT
VD AC2
VP AC1
VP AC2
FU5 2A
FU6 2A
FU7 2A
FU8 2A
REG.
Q4052
REG.
Q4051
REG.
AC1
VH
VH
3001
1 2 3
J4002
3
4
J4002
1 1
CN1904
CN1904
3
4
AC1
AC2
M
DISPLAY
ASSY
QVR & PRE OUT
ASSY
RMOTHER
ASSY
YPOWER AMP
(BR) ASSY
XPOWER AMP
(R) ASSY
VPOWER AMP
(L) ASSY
+13V
U+5.6V
ST+5.6V
U+5.6V
ST+5.6V
V+16
A+20
V-16
AC1
AC2
REG.
REG.
IC4011
LM10851T-5.0
IC4021
LM2940CT-5.0
REG.
D4005
1
3
IO
IC4022
NJM79M05FA
REG.
IO
IC4033
NJM78M56FA
REG.
IO
IC4031
LM2940CT-5.0
REG.
IO
IC4032
NJM79M05FA
REG.
IO
IC4043
NJM78M15FA
REG.
IO
IC4041
NJM7820FA
REG.
IO
IC4042
NJM7918FA
IC5002
NJM78M15FA
IC5003
NJM79M15FA
REG.
REG.
REG.
IO
+5V REG.
-27VF
+55VH
V+27
V+27
V-27
V+20
V-20
-55VH
-VH
+VH
-VH
-VH
+VH
+VH
CN4805
(15P)
11
10
-VH
+VH
-VH
+VH
CN4803
(11P)
6
7
CN4804
(9P)
6
5
V+20
V+5D
V-5D
V+5U
V12T
V+20V
V+5V
V-5V
V-20V
V-20
V+20
-5VD
+5.6VU
+5.6VV
-5.6VV
+15VT
+20VA
-20VA
WPOWER
AMP (C)
ASSY
CN4807
(15P)
11
10
-VH
+VH
VST5
CN3001
(17P)
2
1
V+5U
VST5
CN5807
(17P)
16
17
CN4002
(3P)

VSX-49TXi 25
5678
5678
C
D
F
A
B
E
8
7
FCOMPONENT
ASSY
GVIDEO
CONNECT
ASSY
EV-CONVERT
ASSY
V+5C
V-5C
CN704
(2P)
CN705
(22P)
2
CN402
(16P)
2
CN501
(16P)
2
CN706
(14P)
1
VD3U
VDD5
AO
CN5802
(13P)
CN5821
(17P)
CN2705
(13P)
CN2002
(17P)
11 7
+5VP
VDD5
VDD5
VD5V
6
3
6
3
4
1
Q5805
REG.
TDSP3
ASSY
SDSP ASSY
A
B
FM/AM TUNER
MODULE
A/V I/O
ASSY CCOMPOSITE ASSY
IC713
PQ3DZ13
REG.
VD3A
IC305
PQ3DZ13
REG.
V+3B
IC415
PQ3DZ13
REG.
V1RB
IC416
PQ7VZ5
REG.
IC5809
NJM79M15FA
REG.
VE15
V-15
IC5807
NJM79M15FA
REG.
IC5808
NJM78M15FA
REG.
V+15
VC15
IC5806
NJM78M15FA
REG.
VD3C
IC505
PQ3DZ13
REG.
CN6001
(14P)
CN6003
(7P)
1
UDAC10
ASSY
V+3DD
V+15 V+5D
V-5D
V-15
IC6001
PQ3DZ13
REG.
VDD5
CN401
(22P)
12
13
1394 MODULE
V+3D
V+2D
IC1
NJM2391DL1-33
IC2
MM1562FF
REG.
REG.
3
13 12 7
41
CN5812
(7P) 3 7
V+15 V-15 V-5D V+5D
V+15
V-15
V-5D
V+5D
+10V
+10V
VC15I
VC15
VE15I
VC15
VE15
VE15
CN5823
(17P) CN2301
(17P)
15
16
15
16
CN2306
(8P)
8
7
CN3302
(8P)
CN3301
(12P)
CN3304
(18P)
CN2852
(18P)
CN2102
(12P)
8
7
CN3303
(10P)
8
7
109
1817
1817
109
DS-VIDEO
ASSY
V+5.6V
V+5
V-5.6V
V+5S
V-5
CN5806
(11P) CN2307
(11P)
11
6
1
6
HMIC AMP
ASSY
A+20V
V+20
A-20V
A+20V
A-20V
V-20
CN5816
(30P)
19
L
ANALOG IN & A/D
ASSY
VC15I
VC15
VE15I
VC5A
VC5D
VE15
V+5D
V-5S
V+5V
V+5V
V-5V
V-5V
V+5V
V-5V
V+5V
V-5V
V+5Z
V-5Z
CN2502
(10P)
18
20
21
19
18
20
21
CN3403
(30P) VC15I
VE15I
VC5D
VC5A
VC3A
VC5AA VC5F
VC3F
IC3402
PQ3DZ13
L3401
L3402 REG.
L3421
L3422

VSX-49TXi
26
1234
1234
C
D
F
A
B
E
AO
1394 MODULE
IC201
TSB43CA43GGW
iceLynx-Micro
(Mercury) IC301
XC2S50-5TQ144C
Rate Controller
(FPGA)
IC401
SM5816AF
DSD Converter
(SACD →LPCM)
IC405
CY22381FC
512fs PLL
IC306
PE9014A
PROM
IC403
TC7SZ126FU
53 52
74 23 2 4
76
62
X201
24.576MHz
60958
SACD_DA
MCLK
XTAL
IN
CLKC
MCLK
SACD_D0-D5
IC302
K4S641632F-TC75
64M SDRAM
IC203
BU2370FV
VCO (PLL)
IC101
PD5787A
HOST CPU
IC202
AYW7022
4M
Flash ROM
JA1
CN103
(7P)
60958
31 M PCM DATA A
29 M PCM DATA 1
30 M PCM DATA 2
28
38
52
46
45
47
1
3
M PCM DATA 0
SACD_D0-D5
IN A OUT Y
JA2
RS232C
25,26
29,30
158,159
163-166 77-80 83,84
10-13
19,20
63-68
33,34
36,37
40 18
X301
33.8688MHz
41 15
X302
36.864MHz
174
167
170
(F)
(F)
(C)
(C)
(S)
(S)
(SB)
¶1394 MODULE Block

VSX-49TXi 27
5678
5678
C
D
F
A
B
E
IC405
TC74VHC257FT
Multiplexer
IE_BDT
CN401
(22P)
20
1394_SPDIF
21
IE_CDT
18
IE_SDT
19
IE_FDT
17
IE_MCK
9
5
67
14
13 12
11
10 9
2
34
4A
4B 4Y
IC405
TC74VHC257FT
Multiplexer
14
13 12
4A
4B 4Y
2A
2B 2Y
3A
3B 3Y
1A
1B 1Y
CN705
1/5
S
(F)
(C)
(S)
(SB)
(F)
(F)
(F)
(F)
(C)
(C)
(C)
(C)
(S)
(S)
(S)
(S)
(SB)
(SB)
(SB)
: Audio Signal Route (F)
: Audio Signal Route (C)
: Audio Signal Route (S)
: Audio Signal Route (SB)

VSX-49TXi
28
1234
1234
C
D
F
A
B
E
3.2 OVERALL WIRING DIAGRAM
U1/2, U2/2
DAC 10 ASSY (AWK7725)
FRONT A/V
ASSY
(AWX8189)
J
U
DSP3 ASSY (AWK7727)
T
MIC & OPT
ASSY
(AWX7875)
I
MIC AMP ASSY
(AWX7872)
H
A/V I/O ASSY (AWX7938)
B
COMPOSITE ASSY (AWX7942)
C
S-VIDEO ASSY (AWX8159)
D
VIDEO CONNECT ASSY
(AWX7876)
G
POWER AMP (BR) ASSY
(AWX7885)
Y
POWER AMP (G)
ASSY (AWX7886)
POWER AMP (R)
ASSY (AWX7883)
Z
POWER AMP (C)
ASSY
(AWX7884)
W
X V
COMPONENT ASSY (AWX7953)
F
MULTI JOG
ASSY
(AWX7869)
O
VOL ASSY
(AWX7870)
P
DISPLAY ASSY
(AWX8140)
DSP DIODE ASSY
(AWX7958)
POSISTER (R)
ASSY
(AWX7846)
POSISTER (L) ASSY (AWX7844)
M
STANDBY ASSY
(AWX7901)
AF
1394 MODULE (AXQ7243)
AO
LOCAL SUPPLY ASSY (AWX7887)
AA
AI AH
AG
AO
S1/5- S5/5
DSP ASSY (AWK7762)
ANALOG IN & A/D ASSY (AWX7878)
S
L1/3- L3/3
L
VR & PRE OUT ASSY (AWX7888)
Q1/3- Q3/3
Q
1/2, AO 2/2

VSX-49TXi 29
5678
5678
C
D
F
A
B
E
POWER AMP (L)
ASSY (AWX7882)
MOTHER ASSY
(AWX8142)
R
HEADPHONE
ASSY
(AWX7874)
K
V-CONVERT ASSY (AWX8160)
E
FM/AM TUNER MODULE (AXQ7237)
A
INPUT SEL
ASSY
(AWX7868)
NFL SUPPLY ASSY
(AWX7871)
AE
FUSE ASSY
(AWX7843)
AL
TRANS (B) ASSY
(AWX8057)
T1
POWER TRANSFORMER
(ATS7320)
AN
TRANS (A) ASSY
(AWX7838)
AM
SP (A) ASSY
(AWX8148)
AD
AC PRIMARY ASSY
(AWX7834)
AB
SP (B) ASSY
(AWX8151)
AJ
POWER SW
ASSY
(AWX7840)
AC
DIODE ASSY
(AWX7841)
AK
AC INLET ASSY
: ADX7395
FU1 : AEK-306
(12A/125V)
Note: When ordering service parts, be sure to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".

VSX-49TXi
30
1234
1234
C
D
F
A
B
E
3.3 FM/AM TUNER MODULE
A
AFM/AM TUNER MODULE (AXQ7237)
(AM)
(AM) (AM)
(AM)
(AM)
(AM)
(FM)
(FM)
(FM) (FM)
(FM)
(FM) (FM)
(FM)
(FM) (FM)
(FM)
(FM)
(FM)

VSX-49TXi 31
5678
5678
C
D
F
A
B
E
A
CN5802
R
: AUDIO SIGNAL ROUTE (TUNER)
(TX)
(TX)(TX)
(TX)
(TX)
(TX)
(TX)
: AM SIGNAL ROUTE
(AM)
: FM SIGNAL ROUTE
(FM)
: The power supply is shown with the marked box.
(AM)
(AM)
(AM)
(AM)
(AM)
(AM)
(FM)
CN2705

VSX-49TXi
32
1234
1234
C
D
F
A
B
E
3.4 A/V I/O ASSY
B
MR
Volume
A/V Function
Selector
MR MUET
ON : +4.3V
OFF : -20V
(DVD) (DVD)
(DVD) (DVD) (DVD)
(FV)
(FV)
(F)
(REC)
(REC)
(REC)
(REC)
(REC)
(MIC)
(MIC)
(F)
(MIC)
(MR)
(MR)
(MR)
(MR)
(DVD)
(DVD)

VSX-49TXi 33
5678
5678
C
D
F
A
B
E
B
BA/V I/O ASSY (AWX7938)
CN5821
R
CN5820
R
A/V MR Function
Selector
: AUDIO SIGNAL ROUTE (DVD)
(DVD)
: AUDIO SIGNAL ROUTE (REC)
(REC)
: AUDIO SIGNAL ROUTE (MR)
(MR)
: AUDIO SIGNAL ROUTE (MIC)
(MIC)
: AUDIO SIGNAL ROUTE (F)
(F)
: AUDIO SIGNAL ROUTE (FV)
(FV)
(DVD)
(MR)
(MR)
(MR)
(MIC)
(MR)
(FV)
(FV)(FV)
(FV)
(MR)
(MR)
(REC)
(REC)
(REC)
(REC)
(REC)
(REC)
(REC)
(MIC)
(MIC)
(MIC)
(F)
(F)
(F) (F)
(DVD)
(MR)
(MR)
(REC)
(F)
(MR)

VSX-49TXi
34
1234
1234
C
D
F
A
B
E
3.5 COMPOSITE ASSY
C
CCOMPOSITE ASSY (AWX7942)
I/O Selector
(Composite)
Clamp
Video
Function
Selector
(Composite)
Video MR
Function
Selector
(Composite)
REC OUT Selector
(Composite)
(DVD)
(DVD)
(DVD)

VSX-49TXi 35
5678
5678
C
D
F
A
B
E
C
CN3301
G
CN5822
R
6dB AMP.
Port Expander
Port Expander
OSD
OSD
Input-Selector
: The power supply is shown with the marked box.
: VIDEO SIGNAL ROUTE
: VIDEO SIGNAL ROUTE (OSD)
(OSD)
: VIDEO SIGNAL ROUTE (DVD)
(DVD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)
(OSD)

VSX-49TXi
36
1234
1234
C
D
F
A
B
E
3.6 S-VIDEO ASSY
D
Video
Function
Selector
(C)
Video
Function
Selector
(Y)
Port
Expander
Sync. Sep.
REC OUT
Selector (Y)
REC OUT
Selector (C)
(Y)
(Y)
(Y)
(Y) (Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y)
(Y) (Y)
(Y)
(Y)
(C) (C)
(Y)
(C)
(C)
(C)
(C)
(Y)
(Y)
(C)
(C)
(Y)
(Y)
(C)
(C)
(Y)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C) (C)

VSX-49TXi 37
5678
5678
C
D
F
A
B
E
: The power supply is shown with the marked box. D
DS-VIDEO ASSY (AWX8159)
CN5823
R
CN3302
G
6dB AMP.
DC SW
S/OSD SW
(C)
S/OSD SW
(Y)
: C SIGNAL ROUTE
: VIDEO SIGNAL ROUTE (OSD)
(OSD)
: Y SIGNAL ROUTE
(Y)
(C)
(Y)
(Y)
(Y)
(Y)
(OSD)
(Y)
(Y)
(Y)
(Y)
(OSD)
(Y)
(C)
(Y)
(Y)
(Y)
(Y)
(Y)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(C)
(Y)
(C) (C)

VSX-49TXi
38
1234
1234
C
D
F
A
B
E
3.7 V-CONVERT ASSY
E
CN3304
G
Clock Gen. Y/C Sep.
0dB Buffer
0dB Buffer
CHROMA Decoder
MN1093NF
(Y)
(C)
(OSD)
(Y)
(C)
(C)
(C)
(CY)
(Y)
(Y)
(C)
(C)
(CY)
(Y)
(Y)
(Y)
(C)
(C)
(Cr)
(Cb)
(CY)
(C)
(Cb)
(Cb)
(Cr)
(Y)
(Y)