Pioneer VSX-47-TX, VSX-49-TX Service manual
Type
Model
Power Requirement
Remarks
VSX-49TX
VSX-47TX
KU/CA AC120V
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
STANDBY/ON
STANDBY
VIDEO AUDIO
DVD/LD TV/DVD SAT VIDEO
OFF ON
INPUT SELECTOR
VCR VCR2 VCR3 CD TUNER PHONO
MAC3
CD-R/
MULTI CH
TAPE1/MD
INPUT
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-49TX
VSX-47TX
AUDIO/VIDEO MULTI-CHANNEL AMPLIFIER
LISTENING MODE SELECTOR
MASTER VOLUME
DOWN
VSX-49TX
ORDER NO.
UP
RRV2523
CONTENTS
1. SAFETY INFORMATION
2. EXPLODED VIEWS AND PARTS LIST
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
4. PCB CONNECTION DIAGRAM
5. PCB PARTS LIST
6. ADJUSTMENT
.............................................
..................................................
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
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...
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14
82
122
140
2
3
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
........................
T – ZZR OCT. 2001 Printed in Japan
.....
160
171
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.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.
Health & Safety Code Section 25249.6 – Proposition 65
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
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.
Reading should
not be above
0.5mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Leakage
current
tester
Test all
exposed metal
surfaces
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.
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
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.
on the schematics and on the parts list
AC Leakage Test
2
VSX-49TX, VSX-47TX
(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA constructed the same except for the following :
Mark No. Symbol and Description
Part No.
Remarks
VSX-49TX/KU/CA VSX-47TX/KU/CA
4
5
7
10
14
17
18
20
Remote Control Unit AX10KU
Remote Control Unit 47TX/KU
Operating Instruction (English)
Cushion for Remote
Packing Case
Remote Control Cable
Remote Control Stand
Microphone
AXD7295
Not used
ARB7249
AXG7080
AHD8029
Not used
Not used
APM7001
Not used
AXD7299
ARB7250
Not used
AHD8028
ADE7083
AEB7243
Not used
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.
•
2.1 PACKING
VSX-47TX Only
1
VSX-49TX
Only
4
20
11
(1/2)
12
(1/2)
19
VSX-47TX
Only
5
6
13
16
3
17
2
VSX-49TX
Only
15
10
18
9
8
7
(2/2)
11
12
(2/2)
13
(1) PACKING PARTS LIST
Mark No. Description Part No.
1 Power Cord ADG7052
2 FM Wire Antenna ADH7010
3 AM Loop Antenna ATB7009
4 Remote Control Unit AX10KU See Contrast table (2)
5 Remote Control Unit 47TXKU See Contrast table (2)
6 Alkaline Dry Cell Battery VEM1021(2pcs.)
(LR6, AA)
7 Operating Instructions (English) See Contrast table (2)
8 Caution Sheet SP, E ARM7056
NSP 9 Warranty Card EL ARY1026
10 Cushion for Remote See Contrast table (2)
11 Top Pad AHA7362
12 Bottom Pad AHA7363
13 Spacer AHB7057
14 Packing Case See Contrast table (2)
15 Packing Sheet DHL1022
NSP 16 Polyethylene Bag Z21-038
(0.03 × 230 × 340)
17 Remote Control Cable See Contrast table (2)
18 Remote Control Stand See Contrast table (2)
19 Handle Cover AHX7034
20 Microphone See Contrast table (2)
19
14
3
VSX-49TX, VSX-47TX
2.2 EXTERIOR SECTION
12
22 21
12
24
11
20
(Shows VSX-49TX)
2
12
25
4
18
Refer to "2.6 FRONT PANEL
SECTION."
23
4
3
26
27
16
13
A
4
25
B
C
D
6
17
18
12
15
14
14
A
D
B
C
13
13
28
1
Refer to "2.3 CHASSIS SECTION."
29
4
3
12
2
(Shows VSX-49TX)
20
Refer to "2.5 HEAT SINK SECTION."
VSX-49TX ONLY
7
8
17
9
10
19
19
19
17
19
17
9
19
5
10
4
(1) EXTERIOR SECTION PARTS LIST
(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following :
Mark No. Symbol and Description
Part No.
Remarks
VSX-49TX/KU/CA VSX-47TX/KU/CA
NSP
NSP
NSP
NSP
2
2
3
3
4
7
9
9
20
21
22
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
AAH7081
Not used
AMR7284
Not used
PNM1249
ANF7030
VXA2368
Not used
Not used
ARW7036
ARW7148
Not used
ANE7279
Not used
AMR7384
Not used
Not used
Not used
PNW2766
ABE7008
Not used
Not used
Mark No. Description Part No.
VSX-49TX, VSX-47TX
NSP 1 Top Plate BK ANE7282
NSP 3 Side Panel Sheet See Contrast table (2)
NSP 3 Side Panel Sheet S See Contrast table (2)
NSP 4 Tape See Contrast table (2)
NSP 6 Energy Star Label AAX7876
NSP 7 Bottom Plate B See Contrast table (2)
NSP 8 Bottom Plate A ANF7029
2 Side Alum BK See Contrast table (2)
2 Side Plate BK See Contrast table (2)
5 UL Caution Card AAX-313
9 Insulator Assy See Contrast table (2)
9 Insulator See Contrast table (2)
10 Screw ABA1054
11 Screw BBT30P060FCC
12 Screw FBT40P080FZK
13 Screw ABA7079
14 Screw RBA1099
15 Screw VBA1056
16 Screw ABA1011
17 Screw ABA1050
18 Screw ABA1193
19 Screw IBZ30P090FCC
20 Washer See Contrast table (2)
21 Coution Label See Contrast table (2)
22 DTS License Label See Contrast table (2)
23 Screw BBZ30P080FCC
24 65 Label ARW7050
25 Screw BBT30P100FCC
26 ICP Coution Label ARW7151
27 FUSE Coution Label VRW-548
28 ICP Coution Label ARW7150
29 Binder ZCA-BK1
5
VSX-49TX, VSX-47TX
2.3 CHASSIS SECTION
53
43
32
27
43
46
65
51
52
26
68
6
43
43
55
13
B
45
72
AL
48
D
C
E
18
4
AN
22
25
AM
76
45
43
64
24
3
E
52
E
12
45
24
23
28
65
55
55
H
68
43
E
68
68
43
17
50
AK
43
60
5
57
20
2
59
25
55
49
14
29
47
48
Refer to "2.4 REAR PANEL SECTION".
15
43
14
47
16
49
71
50
21
31
48
7
AI
45
A
34
57
50
54
19
50
50
46
35
43
33
46
36
49
30
44
30
43
48
43
D
18
43
C
17
53
A
61
62
54
50
43
24
35
41
46
43
67
46
43
46
43
43
44
F
36
B
F
41
53
43
27
38
50
8
AA
73
63
5637
43
46
46
43
45
45
43
74
R
1
43
66
42
40
65
33
45
58
39
43
S
10
75
70
T
11
70
VSX-49TX ONLY
43
U
9
37
56
6
(1) CHASSIS SECTION PARTS LIST
(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following :
Mark No. Symbol and Description
Part No.
Remarks
VSX-49TX/KU/CA VSX-47TX/KU/CA
NSP
NSP
NSP
NSP
NSP
NSP
NSP
1
9
9
10
11
22
23
28
29
31
39
40
42
MOTHER Assy
DAC10 Assy
DAC8 Assy
DSP Assy
DSP3 Assy
Side Frame L
Side Wall L
Panel Stay
Fan Holder
Side Wall R
Shield Case A
Side Frame R
Shield Case B
AWX7890
AWK7725
Not used
AWK7719
AWK7727
ANA7133
AND7041
AND7045
ANG7373
AND7043
ANK7093
ANA7135
ANK7095
AWX7891
Not used
AWK7726
AWK7720
Not used
ANA7134
AND7042
AND7046
ANG7374
AND7044
ANK7094
ANA7136
ANK7096
Mark No. Description Part No.
1 MOTHER Assy See Contrast tabel (2)
2 DIODE Assy AWX7841
3 TRANS (A) Assy AWX7838
4 TRANS (B) Assy AWX8057
5 FUSE Assy AWX7843
6 MIC AMP Assy AWX7872
7 DSP DIODE Assy AWX7958
8 LOCAL SUPPLY Assy AWX7887
9 DAC10 Assy See Contrast table (2)
9 DAC8 Assy See Contrast table (2)
10 DSP Assy See Contrast table (2)
11 DSP3 Assy See Contrast table (2)
12 Power Transformer (T1) ATS7320
NSP 13 PCB Holder B ANG7388
14 Capacitor (C1, C2) ACH7164
15 Rubber Spacer AEB7244
NSP 16 Earth Plate ANG7381
NSP 17 Joint Plate ANG7382
NSP 18 PCB Base RNE1849
19 Trans Frame ANA7137
20 Sheet AEE7043
NSP 21 Trans Stabilizer ANG7378
NSP 22 Side Frame L See Contrast table (2)
NSP 23 Side Wall L See Contrast table (2)
NSP 24 Wire Clip (A) VEC1355
NSP 25 Insulator Frame B ANG7377
26 Glass Tube ADN7006
27 Cord Holder RNH1005
28 Panel Stay See Contrast table (2)
NSP 29 Fan Holder B See Contrast table (2)
NSP 30 Wire Saddle DEC1450
NSP 31 Side Wall R See Contrast table (2)
NSP 32 Flat Cable Clamp AEC7376
NSP 33 Insulator Frame A ANG7376
34 Sub Heat Sink ANH7154
NSP 35 PCB Holder D ANG7392
36 Mica Sheet S AEE7042
37 Bushing 26 AEC7128
NSP 38 PCB Spacer AEC7156
NSP 39 Shield Case A See Contrast table (2)
NSP 40 Side Frame R See Contrast table (2)
VSX-49TX, VSX-47TX
Mark No. Description Part No.
NSP 41 Tape PNM1249
NSP 42 Shield Case B See Contrast table (2)
43 Screw ABA1011
NSP 44 PCB Holder C ANG7389
45 Screw BBZ30P080FCC
46 Screw IBP30P090FCC
47 Screw VBA1056
48 Screw ABA1082
49 Screw BMH40P080FMC
50 Screw ABA7076
51 Trans Label AAX7897
52 Screw ABA1014
53 Screw BBT30P060FCC
54 Screw ABA1050
55 Screw ABA1192
56 Screw ABA7084
57 Screw RBA1099
NSP 58 PCB Frame B ANG7386
59 Fuse (FU4, 4A) VEK1023
60 Fuse (FU5-FU8, 2A) VEK1019
61 J29 FFC (17P) ADD7329
(MOTHER CN5807 – DISPLAY CN3001)
62 J30 FFC (11P) ADD7337
(MOTHER CN5806 – MIC AMP CN3207)
63 J16 8P Connector Assy ADX7379
(LOCAL SUPPLY CN4001 – FUSE CN1802)
64 J17 3P Connector Assy ADX7380
(LOCAL SUPPLY CN4002 – TRANS(B) CN1701)
65 Binder ZCA-BK1
66 Card Spacer REC1156
67 PCB Holder PNW2100
68 Locking Card Spacer VEC2234
69 Screw ABA7017
70 PC Support DEC1772
71 Oval head Terminal wire ADX7366
72 J1601 5P,7P Parallel wire ADX7385
73 J5805 9P Connector Assy ADX7378
(Local Supply CN4004–Mother CN5805)
74 5802 Crimp Connector Assy PF06PP-R27
(Mother CN5827–Mother CN5828)
75 PCB Spacer VEC1508
76 Fuse (FU9-FU10, 1A) VEK1014
7
VSX-49TX, VSX-47TX
2.4 REAR PANEL SECTION
19
AB
AJ
3
19
26
G
16
16
25
16
17
21
14
16
16
16
24
23
1
A
2
20
19
29
15
4
16
18
16
AD
19
22
28
13
5
VSX-49TX ONLY
27
E
6
F
7
D
8
C
9
B
10
Q
L
11
12
8
(1) REAR PANEL SECTION PARTS LIST
(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following :
Mark No. Symbol and Description
Part No.
Remarks
VSX-49TX/KU/CA VSX-47TX/KU/CA
5
6
7
8
9
10
11
12
13
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
AWX7876
AWX7952
AWX7953
AWX7948
AWX7942
AWX7938
AWX7888
AWX7878
ANC8036
AWX7877
Not used
AWX7954
AWX7949
AWX7943
AWX7939
AWX7917
AWX7879
ANC8035
VSX-49TX, VSX-47TX
Mark No. Description Part No.
1 FM/AM TUNER Module AXQ7237
2 SP (B) Assy AWX7852
3 AC PRIMARY Assy AWX7834
4 SP (A) Assy AWX7848
5 VIDEO CONNECT Assy See Contrast table (2)
6 V-CONVERT Assy See Contrast table (2)
7 COMPONENT Assy See Contrast table (2)
8 S-VIDEO Assy See Contrast table (2)
9 COMPOSITE Assy See Contrast table (2)
10 AV I/O Assy See Contrast table (2)
11 VR & PRE OUT Assy See Contrast table (2)
12 ANALOG IN & A/D Assy See Contrast table (2)
13 Rear Panel See Contrast table (2)
14 Screw with Terminal AKE-031
15 AC Inlet Assy VKP2251
16 Screw BBZ30P080FCC
17 Hexagonal Screw ABA7078
18 Screw ABA1193
19 Screw ABA1011
20 Fuse (FU1, 12A/125V) AEK-306
21 Short Pin Plug AKM7005
22 J23 FFC (14P) ADD7334
(SP(A) CN1104 – MOTHER CN5801)
23 J22 FFC (13P) ADD7333
(TUNER CN2705 – MOTHER CN5802)
Mark No. Description Part No.
24 Speaker Sheet 49 AAK7959
25 Cushion Circle AED7052
26 Jamper Wire 3P D20PYY0365E
(AC Primary CN1105 – Power SW CN1301)
27 J5001 8P Connector Assy ADX7382
(VR&PRE OUT CN5005
– Power AMP(BR) CN4811)
28 J5002 14P Connector Assy ADX7381
(VR&PRE OUT CN5006
– Power AMP(L) CN4801
and Power AMP(R) CN4802)
29 Binder ZCA-BK1
9
VSX-49TX, VSX-47TX
2.5 HEAT SINK SECTION
12
15
10
12
15
11
18
10
12
6
AG
8
14
3
Y
2
X
15
10
1
V
14
17
13
4
W
17
17
13
19
21
16
16
20
10
Z
5
17
16
19
20
16
21
10
11
15
12
15
10
12
18
15
12
9
7
AH
10
HEAT SINK SECTION PARTS LIST
(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following :
Mark No. Symbol and Description
Part No.
Remarks
VSX-49TX/KU/CA VSX-47TX/KU/CA
8
9
Heat Sink L
Heat Sink R
ANH7155
ANH7156
ANH7148
ANB7149
•
Mark No. Description Part No.
1 POWER AMP (L) Assy AWX7882
2 POWER AMP (R) Assy AWX7883
3 POWER AMP (BR) Assy AWX7885
4 POWER AMP (C) Assy AWX7884
5 POWER AMP (G) Assy AWX7886
6 POSISTER (L) Assy AWX7844
7 POSISTER (R) Assy AWX7846
8 Heat Sink L See Contrast table (2)
9 Heat Sink R See Contrast table (2)
10 Mica Sheet L AEE7045
VSX-49TX, VSX-47TX
NSP 12 PCB Holder A ANG7387
NSP 13 Heat Sink Holder ANG7375
11 Mica Sheet M AEE7046
14 Screw ABA1011
15 Screw IBP30P090FCC
16 Screw BMZ30P060FCU
17 Screw RBA1099
18 Screw ABA7076
19 Screw ABA7083
20 Over head Terminal wire(RED) ADX7383
21 Over head Terminal wire(BLUE) ADX7384
11
VSX-49TX, VSX-47TX
2.6 FRONT PANEL SECTION
37
35
48
55
27
30
31
40
28
29
F
51
50
33
45
45
M
1
46
46
46
44
D
E
G
45
32
58
46
43
J
3
A
55
39
43
49
41
2
53
K
55
B
C
47
46
42
59
60
4
I
41
33
51
55
27
G
34
49
36
48
38
45
F
13
26
14
12
27
11
49
49
40
15
19
14
AC
24
46
46
46
61
AE
7
A
46
C
55
N
D
46
22
8
24
23
25
57
46
56
46
46
9
O
46
E
10
6
56
46
22
54
46
AF
5
17
52
21
20
B
55
23
P
1816
24
22
56
46
12
13
49
49
(1) FRONT PANEL SECTION PARTS LIST
(2) CONTRAST TABLE
VSX-49TX/KU/CA and VSX-47TX/KU/CA are constructed the same except for the following :
Mark No. Symbol and Description
Part No.
Remarks
VSX-49TX/KU/CA VSX-47TX/KU/CA
1
11
30
DISPLAY Assy
Front Panel
Inner Panel
AWX7864
ANB7269
AAH7087
AWX7865
ANB7268
AAH7086
Mark No. Description Part No.
VSX-49TX, VSX-47TX
Mark No. Description Part No.
1 DISPLAY Assy See Contrast table (2)
2 HEADPHONE Assy AWX7874
3 FRONT A/V Assy AWX7902
4 MIC & OPT Assy AWX7875
5 STANDBY Assy AWX7901
6 POWER SW Assy AWX7840
7 FL SUPPLY Assy AWX7871
8 INPUT SEL Assy AWX7868
9 MULTI JOG Assy AWX7869
10 VOL Assy AWX7870
11 Front Panel See Contrast table (2)
12 Pioneer Badge PAN1376
13 Rotary Knob L BK AAA7018
14 Plate ANG7198
15 Rotary Knob S BK AAA7015
16 Display Panel AAK7932
17 Panel Base L BK AMB7788
18 Panel Base R BK AMB7791
19 Power Button AAD7440
20 Power Button M AAD7442
21 Washer ABF7008
NSP 22 VR Stabilizer ANG7383
23 Cord Holder RNH1005
24 Nut NK90FCU
NSP 25 Earth Spring ABK7031
26 Door Panel BK ANB7273
NSP 27 Door Cushion BK AED7051
28 Door Plate AAH7077
29 FL Lens AAK7934
30 Inner Panel See Contrast table (2)
31 LED Lens AAK7931
32 Cord Clamper RNH-184
33 LED Lens PNW2019
34 Panel Base C BK AMB7785
NSP 35 Door Hinge L ANG7379
NSP 36 Door Hinge R ANG7380
37 Door Holder L AMR7373
38 Door Holder R AMR7374
39 Damper Assy AXA7108
40 Screw ABA7074
41 Magnet AMF7004
NSP 42 Input Holder ANG7384
NSP 43 Earth Spring ABH7208
44 Shield Plate D AMR7390
45 Screw BBZ30P100FZK
46 Screw BBZ30P080FCC
47 Screw ABA7053
48 Screw BBT30P060FCC
49 Screw ABA1050
50 Screw BBZ20P060FMC
51 Screw ABA7076
52 J33 FFC (3P) ADD7331
(DISPLAY CN3002 – STANDBY CN1903)
53 J35 FFC (4P) ADD7332
(SP(A) CN1206 – HEADPHONE CN3203)
54 J1101 Parallel Wire 3P D20PYY0365E
(POWER SW CN1301 – AC PRIMARY CN1105)
55 Fiber Washer VEC1254
NSP 56 Earth Metal Fitting DE007VC0
NSP 57 Earth Metal Fitting DE012VF0
58 J32 8P Connector Assy ADX7390
(Front A/V CN3204 – MIC AMP CN3206)
59 J99 4P Connector Assy ADX7387
(MIC & OPT CN3202 – MIC AMP CN3205)
60 J31 5P Connector Assy ADX7386
(MIC & OPT CN3201 – Mother CN5804)
61 J1801 4P Connector Assy ADX7377
(FL Supply CN1901 – FUSE CN1803)
13
1
23
VSX-49TX, VSX-47TX
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
3.1.1 Audio Block
ANT
A
A
FM/AM TUNER
MODULE
CN2705
(13P)
L CH
7 7
R
CN5802
(13P)
MOTHER
ASSY(1/5)
CN5814
(20P)
TXL TXL
20
CN3401
(20P)
20
ANALOG IN &
L
A/D ASSY
4
IC2001 TC9164AF
DVD/LD
L
TV L
SAT L
VCR1
PLAY L
VCR2
PLAY L
VCR3
PLAY L
VSX-49TX
ONLY
B
VCR3
REC L
VCR1
REC L
VCR2
REC L
I
A/V Function Selector
27
26
25
24
22
21
18
19
IC2002 TC9162AF
Function Selector
27
26
24
23
18
21
20
23
20
17
A/V MR
25
22
17
19
(17P)
R
MOTHER
ASSY(2/5)
B
AV I/O ASSY
IC2051-1/2
UPC4570C
3
2
(MR)
1
IC2053-2/2
BA4558F
CN2002
1 12
MIC
1
CN5821
(17P)
1
MIC
1
2
3
MIC & OPT
ASSY(1/2)
JA3202
SETUP
MIC
CN3202
C
VIDEO
L
CN3204
MIC
FV L
22
CN3205
33
CN3206
IC3201-1/2
M5220FP
3
2
MIC AMP
Q3204
1
(F)
(MR)
MR VOL
IC2052
M62429FP
8 7
(REC)
CN2001
(17P)
FV L
12
CN5820
CN5806
(11P)
5
FV L
711
CN3207
(11P)
H
MIC AMP
ASSY
CN2001
(17P)
(REC)
(MR)
4
8
14
VFUNCL
MR OUTL
RECL
MR
OUT L
PHONE
L
CD L
TAPE1
PLAY L
FL IN
TAPE2
PLAY L
TAPE1
REC L
TAPE2
REC L
SL IN
IC3423-2/2
M5220P
5
6
(REC)
(REC)
IC3462-2/2
UPC4570C
5
6
(S)
FRONT A/V
J
ASSY
IC3502-2/2
NJM2068D
6
5
VSX-49TX ONLY
SLOUT
FLOUT
COUT
SBLOUT
D
22
23
26
27
19
18
IC3401 TC9163AF
A/D Mode Selector
20
24
17
IC3701-2/2
6
5
IC3601-2/2
6
5
IC3801-2/2
6
5
IC3702-2/2
6
7
5
IC3602-2/2
6
7
5
IC3802-2/2
6
7
5
IC3421 AK5383VS
A/D Converter
7
4
5
IC3461 AK5383VS
Surround
A/D Converter
7
4
5
IC3441 AK5383VS
A/D Converter
7
4
5
IC3481 AK5383VS
A/D Converter
7
4
5
Front
C/SW
Back
7
3
5
1
ADFFDT
ADSRDT
ADCWDT
ADSBDT
CN5816
(30P)
7
3
5
1
CN3403
(30P)
(F)
15
(S)
15
(C)
15
(SB)
15
MOTHER
ASSY(3/5)
CN5810
(17P)
IC3422 TC9163AF
Audio Function Selector
7
27
26
25
23
22
21
19
18
11
15
14
IC3901 BU4052BCF
Function Selector
7
R
AF DATA
8
4
6
2
AS DATA
AC DATA
AB DATA
10
14
12
16
24
20
17
13
Audio MR
OPT
IN
R
MOTHER
ASSY(4/5)
OPT
OUT
CN702
(17P)
RF Demodulator
S
IC3424-1/2
UPC4570C
(F)
5
6
(S)
MIC & OPT
I
ASSY(2/2)
COAX
OPT
IN
IN
DIR & DIT
DSP 1 & 2
DSP U-COM
DSP ASSY
(F)
SLOUT
CN3201
5
OPT5 IN
5
CN5804
CN5809
8
F OPT
2
CN3401
7
COUT
FLOUT
(5P)
(5P)
(9P)
CN703
(9P)
(20P)
CN3402
(F)
(SB)
(C)
SBLOUT
CN709
CN707
12
16
8
4
(17P)
2
14
6
10
VFUNC INL
MR LOUT
MC CIN
MC SBLIN
EX FLOUT
EX SBLOUT
EX COUT
EX SLOUT
14
1234
5
678
VSX-49TX, VSX-47TX
MOTHER
R
ASSY(5/5)
CN5814
(20P)
12
(MR)
16
8
4
(SB)
CN5815
(17P)
(F)
2
(SB)
14
(C)
6
(S)
10
SBLO
SLO
CTO
FLO
(SB)
14
(S)
10
(C)
6
2
CN5813
(17P)
VSX-49TX ONLY
I
DSP 3 ASSY
CN501
CN6002
U
CN5820
(17P)
(F)
VFUNCL
4
MR OUTL
8
(C)
(F)
14
CN5817
(9P)
8
4
1
13
5
9
20
24
28
CN5818
(30P)
3
CN5819
(24P)
RECL
MC C
MC SDL
EXFLIN
EXSBLIN
EXCIN
EXSLIN
SBLIN
SLIN
CIN
FLIN
(F)
(S)
(SBL)
(C)
CN5002
CN5001
(30P)
CN5003
FL
SL
SBL
CT
CN4801
(9P)
8
4
1
13
5
9
20
24
28
3
(24P)
1
3
5
7
(8P)
CN4805
(15P)
IC5181-1/2
NJM2068D
(F)
Voltage Amp
PA9008A
PA9008A
PA9008A
7
DSP 3
Front Digital
Filter
IC6021
DF1706E
F
1 24
CW
S
SB
D/A Converter
IC6101
PCM1704U-1
1 14
Same as the above circuit.
Note: Shows the DAC 10 ASSY.
IC6103
NJM5534DD
2
3
DAC 10 ASSY (VSX-49TX)
DAC 8 ASSY (VSX-47TX)
IC5043-1/2
UPC4570C
2
1
3
IC5083-1/2
UPC4570C
1
2
3
(F)
(SB)
(C)
(S)
IC5023-1/2
NJM2068D
2
3
6
5
IC5023-2/2
NJM2068D
IC4101
IC4401
IC4601
(SB)
2
3
IC5181-2/2
NJM2068D
6
1
7
5
1
7
Current Amp
IC4102,IC4103
PBD001A,PBD002A
IC4402,IC4403
PBD001A,PBD002A
IC4602,IC4603
PBD001A,PBD002A
POWER AMP (L)
V
ASSY
C
7
CN4807
IC4301
(15P)
PA9008A
Voltage Amp
W
POWER AMP
(C) ASSY
IC6105-2/2
NJM2068D
1
IC6105-1/2
NJM2068D
6
3
7
5
2
(C)
TC9274N-016
Mode Selector
5
4
2
3
16 19
18
8 10
7
13
11
12
(C)
(C)
CN4808
(F)
1
(C)
(S)
(SB)
EXC
IN
EXSBL
IN
IC5001
CN4807
(15P)
CN6004
6
8
(17P)
VR & PRE OUT
Q
ASSY
Front
Main Volume
IC5021
TC94A07F
(F)
7 5
Surround Back
Main Volume
IC5081
TC94A07F
(SB)
6
14
CG1+
CG1-
(C)
(S)
BRN
YLW
7 5
L/SW
Main Volume
IC5041
TC94A07F
7 5
Surround
Main Volume
IC5061
TC94A07F
7 5
J4801
(F) (F)
(C)
(S)
(SBL)
BLU
CN4805
CN4805
6
CN4806
8
(15P)
IC4302
PBD001A
Current Amp
CN4806
IC4303
PBD002A
Current Amp
(15P)
Pre-Amp
IC5022-1/2
OPA2134PA
3
1
2
Pre-Amp
IC5082-1/2
OPA2134PA
3
1
2
Pre-Amp
IC5042-1/2
OPA2134PA
3
1
2
Pre-Amp
IC5062-1/2
OPA2134PA
3
1
2
12
14
15
Surround Back Selector
1
4
2
3
1
|
4
10
|
13
IC5084-2/2
BU4052BCF
FLO
CO
SLO
SBLO
1
|
4
10
|
13
13
CN4807
(15P)
CN4808
(F)
(SB)
(C)
(S)
CN5006
(14P)
ORG
14
12
10
8
CN1203
(C)
PREOUT
SURROUND
SBL
POWER AMP
X
(R) ASSY
(F)
FLO
2
CTO
6
SLO
10
SBO
14
: Audio Signal Route (F)
(C)
: Audio Signal Route (C)
(S)
: Audio Signal Route (S)
(SB)
: Audio Signal Route (SB)
(SBL)
: Audio Signal Route (SBL)
(MR)
: Audio Signal Route (MR)
(REC)
: Audio Signal Route (REC)
L
FRONT
L
SB L
PREOUT
CENTER
L
(F)
FL
(S)
SL
(SBL)
CT
(C)
HPL
CN1206
3
RY1205
RY1201
1
RY1202
4
RY1203
2
RY1204
3
J1206
3
FBL
3
CN1007
RY1003
AJ
SP (B) ASSY
K
HEADPHONE
ASSY
CN3203
(4P)
CN1201
(C)
(S)
(SBL)
CN1202
(SBL)
PHONES
SPA
FL
FR
SL
SR
SBL
SBR
SPB
FL
FR
CN1006
3
(4P)
A
B
C
D
15
5
6
7
8
1
VSX-49TX, VSX-47TX
3.1.2 Video and Display Blocks
Video Block
(Y)
A
DVD/LD
TV/HDTV
SAT
VCR1
VCR2
VCR3
VSX-49TX
Only
Y
C
(C)
Y
C
Y
C
Y
C
Y
C
Y
C
B
CN2301
(17P)
(C)
14 13
FY
14 13
14
15
2
5
1
12
4
14
15
2
5
1
12
4
FC
CN5823
(17P)
R
MOTHER
ASSY(1/2)
FRONT A/V
J
ASSY
VIDEO
C
S-VIDEO
DVD/LD
TV/HDTV
SAT
VCR1 IN
VCR2 IN
VCR3 IN
VSX-49TX
Only
5
6
Y
8
C
CN3204
(8P)
TC74HC4051AFT
Video Function
Selector (COMPOSITE)
D
TC74HC4051AFT
Video MR Function
Selector (COMPOSITE)
H
F-VIDEO
5
FV-Y
6
FV-C
8
CN3206
(8P)
IC2101
14 3
15
2
5
1
12
4
14 3
15
2
5
IC2107
IC2301
TC74LVX4051FT
Video Function
Selector (Y)
3
(C)
3
IC2302
TC74LVX4051FT
Video Function
Selector (C)
CN5806
(11P)
FV-C
7
FV-Y
9
F-VIDEO
10
FV
18
CN5822
(19P)
MIC AMP
ASSY
2
3
5
CN3207
(11P)
TC74HC4053AFT
OSD Input
Selector
5 4
3
TC74HC4053AFT
I/O Selector
13 14
CVOUT
Q2108
D
23
S-VIDEO ASSY
IC2303
TC74HC4053AFT
(Y) (Y)
F-VIDEO
FV-Y
FV-C
CN2101
(19P)
IC2103
IC2102
(OSD)
S/OSD SW (Y)
5
13
12
(Y)
(OSD)(OSD)
TC74HC4053AFT
S/O OSD SW (C)
(C)
5
13
12
(C)
2
FV
18
VI
VO
151
IC2104
13 15
PDC084A
OSD
IC2304
(C)
VIN
(OSD)
CVIN
4
14
(Y)
4
14
15
(C)
VOUT
OSD
3 71
IC2105-1/2
TK15420M
+6dB AMP
3
2
6
5
IC2105 (2/2)
TK15420M
+6dB AMP
(OSD)
OSD
(OSD)
CN2102
COMPOSITE ASSY
(C)
(C)
3 15
C
(12P)
1
7
(Y)
(C)
(Y)
Y
(Y)
(C)
CN2306
(8P)
75Ω
75Ω
(Y)
(C)
(Y)
(C)
(Y)
(C)
(OSD)
(OSD)
G
VIDEO
CONNECT
ASSY
MONITOR
OUT
MR
OUT
COMPONENT
REC OUT Selector (C)
F
COMPONENT
ASSY
IN1
D
IC2307-1/2
TK15420M
+6dB
3
1
2
IC2307-2/2
TK15420M
+6dB
6
7
5
IC2308
NJM2296M
REC OUT Selector (Y)
13
3
NJM2296M
13
3
Y
Cb
Cr
1
15
11
IC2309
1
15
11
CN3302
(8P)
Y
1
C
3
OSD
5
VIN
1
VOUT
3
OSD
7
CN3301
(12P)
IC2501
TC74LVX4052FT
Video Function
Selector (CY)
14 13
5
IC2502
TC74LVX4052FT
Video Function
Selector (Cb, Cr)
(OSD)
(Y)
(C)
(C)
(Y)
(C)
(OSD)
CN3303
(10P)
CN2502
(10P)
1314
3
(CY)
(Cb)
(Y)
(C)
(Y)
(C)
(OSD)
(CY)
CYOUT
(CY)
13
(CY)
75Ω
75Ω
75Ω
75Ω
(C)
CN3304
(Cr)
(Cb)
3 15
CrOUT
CbOUT
3 15
(Cr)
(Cb)
TC74LVX4053FT
4315114
(Cr)
(Cb)
(CY)
(Cb)
(Cr)(Cr)
IC2106-1/2
OPA2652U
+6dB AMP
4
Y
C
Y
C
Y
C
Y
Y
VSX-49TX
Only
(18P)
VIN
1
VOUT
9
(Y)
Y
3
(C)
C
5
(OSD)
OSD
7
CYOUT
15
CbOUT
13
CrOUT
11
IC2503
Input SW
(COMPONENT)
3
(CY)
1
2
IC2105-1/2,2/2
OPA2652U
+6dB AMP
6
(Cb)
7
5
3
1
2
(Cr)
MONITOR
OUT
MONITOR
OUT 2
VCR1 OUT
VCR2 OUT
VCR3 OUT
VSX-49TX
Only
(CY)
(Cb)
(Cr)
75Ω
75Ω
75Ω
Y
Cb
Cr
16
1234
5
Display Block
678
VSX-49TX, VSX-47TX
SR IN
SR OUT
VSX-49TX
Only
DISPLAY ASSY
M
IC3002
BU2092F
LED Driver
REMOTE
RECEIVER
UNIT
IR IN
17
RMC
16
SR OUT
15
CN2002
(17P)
A/V I/O
B
ASSY
: VIDEO SIGNAL ROUTE
(Y)
: VIDEO SIGNAL ROUTE (Y)
(C)
: VIDEO SIGNAL ROUTE (C)
17
16
15
CN5821
(17P)
V3001
FL Display
IC3001
PD5686A
Display U-COM
CN3001
11
RMC
CN5807
7
IC3001
PD5685A9
Main U-COM
Control Signal
(CY)
(Cb)
(Cr)
3002 3102
3003 3103
3004 3104
(17P)
(17P)
R
MOTHER
ASSY (2/2)
: Y SIGNAL ROUTE (COMPONENT)
: Cb SIGNAL ROUTE (COMPONENT)
: Cr SIGNAL ROUTE (COMPONENT)
O
MULTI JOG
ASSY
P
VOL ASSY
N
INPUT SEL
ASSY
(OSD)
: VIDEO SIGNAL ROUTE (OSD)
VSX-49TX
Only
A
B
VIN
VOUT
OSD
CYOUT
CbOUT
CrOUT
1
9
Y
3
C
5
7
15
13
11
CN2852
(18P)
(Y)
(C)
(OSD)
(Cr)
(CY)
(Cb)
(Cr)
Q2904
(Cb)
TC90A49F
5
AIN
(CY)
V-CONVERT
E
ASSY
IC2851
Y/C SEP.
YOUT
COUT
IC2859-1/3
TC74LVX4053FT
(C)
(Y)
(C)
OSD SW (Y)
14 13
IC2854-1/2
TK15420M
LPF (Chroma)
2
3
(C)
(Y)
(Cr)
1
IC2857-2/2
TK15420M
5
6
0dB Buffer
3
2
IC2857-1/2
TK15420M
Q2853
(Y) (Y)
24
20
Q2854
(OSD)
(CY)
(Cb)
IC2855-1/2
TK15420M
Y 0dB Buffer
3
1
2
IC2859-2/3
TC74LVX4053FT
(C) (C)
15 1
IC2860
TC74LVX4053FT
OSD SW (C)
(C)
3 4
5
(Y)
(OSD)
7
1
3 4
5
IC2859-3/3
TC74LVX4053FT
(Y)
(C)
TA1270BF
Chroma Decoder
(C)
(Y)
IC2853
6820
(Y)
(CY)
22
21
(C)
(Cb)
(Cr)
(Y)
IC2856-1/2
TK15420M
Y Invert Buffer
2
3
IC2855-2/2
TK15420M
C 0dB Buffer
6
5
IC2854-2/2
TK15420M
0dB Buffer
IC2858-2/2
TK15420M
0dB Buffer
IC2858-1/2
TK15420M
0dB Buffer
(CY)
1
7
IC2856-2/2
TK15420M
Y/C MIX
5
6
7
C
6
(CY)
7
5
6
(Cb)
7
5
3
2
(Cb)
(Cr)
1
(Cr)
D
17
5
6
7
8
1
VSX-49TX, VSX-47TX
3.1.3 Power Supply Block
23
4
Power Supply Block
A
CN1002
LIVE
NEUTRAL
AJ
1
2
FU1
SP (B) ASSY
+13V
RY-24V
RY1002
RY1001
CN1005
CN1001
(10P)
CN1003
CN1103
(8P)
RY-24V
7
ST+12V
1
7
1
9
3
2
1
RY-24V
1
7
CN1102
(7P)
1
9
CN1101
(10P)
AB
AM
(3P)
5
4
3
2
1
7
6
5
4
3
2
1
3
VL AC1
VL AC2
VP AC2
VP AC1
VD AC2
VD CT
VD ACT
VA AC2
VA CT
VA AC1
FL AC2
FL AC1
FL VF
VH AC1
VH AC2
AK
DIODE ASSY
GRY
D1501
D1502
RED
+VL (+54V)
BLU
BRN
CN1801
12
11
10
9
8
7
6
5
4
3
2
(12P)
-VL (-54V)
CN1802 CN4001
FU4 4A
1
2
FU5 2A
3
4
FU6 2A
5
6
FU7 2A
7
FU8 2A
8
1
2
3
CN1803
(4P)
AL
FUSE
ASSY
VP AC2
1
VP AC1
2
VD AC2
3
VD CT
4
VD AC1
5
VA AC2
6
VA CT
7
VA AC1
8
FL AC2 AC2
1
FL AC1
2
FL VF
3
CN1901
(4P)
FL SUPPLY
ASSY
B
T1
C
TRANS (A)
ASSY
Power Transformer
IC1703
D1701
CN1601
CN1702
CN1701
AN
TRANS (B)
ASSY
M
-VH
+VH
-VH
+VH
DISPLAY
ASSY
7
6
CN4809
(11P)
5
6
CN4810
(9P)
POWER AMP
V
+VH
10
11
-VH
CN4807
(15P)
POWER
W
D
AMP (C)
ASSY
-VH
+VH
(L) ASSY
10
11
CN4805
(15P)
-VH
+VH
7
6
CN4803
(11P)
5
6
CN4804
(9P)
IC1102
NJM79M24FA
REG.
T1101
AC PRIMARY
ASSY
4
3
J4002
IO
REG.
Q1901
CN1902
AE
3001
+43V
AC1
AC2
A+20
IO
IO
REG.
D1101
IC1101
NJM78M56FA
AI
DSP DIODE
ASSY
D1903
4
3
CN1904
IC4023
D4002
IC4024
D4003
IC4035
IC4036
D4004
1
AC1
2
VH
3
(4P)
VH
AC1
AC2
2
1
4
CN4811
(8P)
CN1105 CN1301
1
3
3
5
CN1104
(14P)
1
CN1904
CN4002
(3P)
VH AC1
1
VH AC2
3
123
U+5.6V
ST+5.6V
SW1301
1
POWER
3
FAN -27V
ST+5.6V
AA
LOCAL SUPPLY
ASSY
VP+9V
1 1
J4002
IC4021
LM2940CT-5.0
IC4022
NJM79M05FA
IC4033
NJM78M56FA
IC4031
LM2940CT-5.0
IC4032
NJM79M05FA
IC4043
IC4047
NJM78M15FA
IC4041
NJM7820FA
IC4042
NJM7918FA
IC4045
IC4046
D4005
CN3001
(17P)
1
2
U+5.6V
ST+5.6V
-VH
+VH
V+20
Q4051
I
REG.
Q4052
I
REG.
2
1
4
CN5005
(8P)
J4004
O
O
CN5004
V+16
V-16
AC
POWER
SW
ASSY
+5V REG.
IO
IC4011
LM10851T-5.0
IO
REG.
IO
REG.
IO
REG.
IO
REG.
IO
REG.
IO
REG.
IO
REG.
IO
REG.
(6P)
+27VF
1
-27VF
3
+55VH
4
-55VH
6
(6P)
IC5002
NJM78M15FA
O
REG.
O
REG.
IC5003
NJM79M15FA
J4001
(2P)
CN4004
(9P)
34 16
I
I
+5VP
1
2
5
3
4
6
7
8
CN5003
RY-24V
FAN -27V
+5VD
+5.6VU
+5.6VV
-5.6VV
+15VT
+20VA
-20VA
5
7
8
10
(24P)
7
RY-24V
ST+5.6V
-5VD
V+27
V-27
V+20
V-20
CN1205
(8P)
3
5
CN5801
(14P)
CN5805
(9P)
1
2
5
3
4
6
7
8
CN5807
(17P)
17
16
5
7
8
10
CN5819
(24P)
AD
SP (A)
ASSY
R
V-5V
+5VP
MOTHER
ASSY
VST5
V+5D
V-5D
V+5U
V+5V
V12T
V+20V
V-20V
V+5U
VST5
V+27
V+20
V-20
18
POWER AMP
X
(R) ASSY
POWER AMP
Y
(BR) ASSY
VR & PRE OUT
Q
ASSY
1234
5
678
VSX-49TX, VSX-47TX
S
CN704
VDD5
(2P)
+5VP
2
Q5805
IO
REG.
DSP ASSY
IC713
PQ3DZ13
IO
REG.
IC305
PQ3DZ13
IO
REG.
IC415
PQ3DZ13
IO
REG.
IC416
PQ7VZ5
IO
REG.
CN5802
VD3U
VD3A
VD+3B
V1R8
(13P)
+10V
11 7
CN709
(16P)
2
CN706
(14P)
1
CN2705
(13P)
T
CN501
(16P)
VD5V
2
U
CN6001
(14P)
VDD5
1
V-15
V+15
CN5812
(7P)
V+15
V-15
V-5D
V+5D
FM/AM TUNER
A
MODULE
+10V
DSP3
VSX-49TX
Only
ASSY
IC505
VD3C
PQ3DZ13
IO
REG.
DAC10
ASSY
IC6001
V+3DD
PQ3DZ13
REG.
V-5D
V+5D
CN6003
41
3 7 41
V+15
V-15
V-5D
V+5D
41
3 7
VDD5
(7P)
CN6901
(14P)
1
U
V-15
V+15
VSX-47TX
Only
DAC8
ASSY
IC6901
PQ3DZ13
IOIO
REG.
V+5D
NC
3 7
V+3DD
CN6903
(7P)
A
B
IC5808
REG.
IC5806
REG.
IC5809
REG.
IC5807
REG.
V+15
VC15
V-15
VE15
NJM78M15FA
IO
NJM78M15FA
IO
NJM79M15FA
IO
NJM79M15FA
IO
VC15
VE15
V+20
VC15
VE15
V+5D
V+5
V-5
V-20
CN5821
(17P)
3
6
CN5823
(17P)
16
15
CN5806
(11P)
6
11
CN5816
(30P)
18
19
20
21
VC15I
VE15I
V+5.6V
V-5.6V
A+20V
A-20V
VC15I
VE15I
VC5A
VC5D
B
CN2002
(17P)
3
6
D
CN2301
(17P)
16
15
H
CN2307
(11P)
6
1
CN3403
(30P)
18
19
20
21
A/V I/O
ASSY
VC15
VE15
S-VIDEO
ASSY
CN2306
V+5S
V-5S
(8P)
MIC AMP
ASSY
A+20V
A-20V
VC15I
VC5A
VE15I
VC5D
V+5V
7
V-5V
8
L3401
L3402
IO
REG.
C
CN2102
(12P)
CN3301
(12P)
CN3302
(8P)
7
8
CN3304
(18P)
CN2852
(18P)
VC5AA
VC3A
IC3402
PQ3DZ13
COMPOSITE
ASSY
V+5V
V-5V
109
V-5V
V+5V
109
CN3303
1817
G
1817
V+5Z
V-5Z
VC5F
L3421
VC3F
L3422
COMPONENT
F
ASSY
(10P)
CN2502
V+5V
7
V-5V
8
(10P)
V+5C
7
8
V-5C
VIDEO
CONNECT
ASSY
V-CONVERT
E
ASSY
L
ANALOG IN & A/D
ASSY
C
VSX-49TX
Only
D
19
5
6
7
8
1
VSX-49TX, VSX-47TX
3.2 OVERALL WIRING DIAGRAM
FRONT A/V
J
A
ASSY
(AWX7902)
I
MIC & OPT
ADX7390
ASSY
(AWX7875)
ADX7387
23
J3002
O
DISPLAY ASSY
MULTI JOG
ASSY
(AWX7869)
M
(VSX-49TX : AWX7864)
(VSX-47TX : AWX7865)
4
H
MIC AMP
ASSY
(AWX7872)
ADX7386
B
J5802
P
VOL ASSY
(AWX7870)
J3003
DSP DIODE ASSY
(AWX7958)
ADD7329
SHIELD PLATE
4042 AMR7390
J6003
DE012VF0
POWER AMP (C) ASSY
(AWX7884)
W
ADX7375
J5805
ADX7378
U 1/2, U 2/2
U
DAC 10 ASSY
(VSX-49TX : AWK7725)
DAC 8 ASSY
(VSX-47TX : AWK7726)
ADX7376
C
AA
LOCAL SUPPLY
ASSY
(AWX7887)
ADX7369
ADX7373
J5002
AI
ADX7381
ADX7374
POWER AMP
(R) ASSY
X
(AWX7883)
POSISTER (R)
ASSY
(AWX7846)
ADX7365
AH
ADX7381
4808
POWER AMP (G)
ASSY
Z
(AWX7886)
J48044808 4807
V
POWER AMP (L)
ASSY
4807
(AWX7882)
POSISTER (L)
ASSY
(AWX7844)
ADX7365
AG
J4803
ADX7372
(BLK)
S 1/5- S 5/5
DSP ASSY
(VSX-49TX : AWK7719)
(VSX-47TX : AWK7720)
J5001
ADX7382
S
VSX-49TX
ONLY
ADX7391
D
DSP3 ASSY
(AWK7727)
T
20
1234
L 1/3- L 3/3
L
ANALOG IN & A/D ASSY
(VSX-49TX : AWX7878)
Q 1/3- Q 3/3
Q
(VSX-47TX : AWX7879)
VR & PRE OUT ASSY
(VSX-49TX : AWX7888)
(VSX-47TX : AWX7917)
B
A/V I/O ASSY
(VSX-49TX : AWX7938)
(VSX-47TX : AWX7939)
C
COMPOSITE ASSY
POWER AMP (BR) ASSY
Y
(AWX7885)
VIDEO CONNECT ASSY
(VSX-49TX : AWX7876)
G
(VSX-47TX : AWX7877)
D
S-VIDEO ASSY
(VSX-49TX : AWX7948)
(VSX-49TX : AWX7942)
(VSX-47TX : AWX7943)
(VSX-47TX : AWX7949)
F
COMPONENT ASSY
(VSX-49TX : AWX7953)
(VSX-47TX : AWX7954)
5
678
VSX-49TX, VSX-47TX
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB P ARTS LIST".
STANDBY
ASSY
(AWX7901)
ADD7331
ADX7363
INPUT SEL
ASSY
(AWX7868)
AF AE
ADX7379
ADX7380
ADX7383
ADX7383
ADX7384
N
J3304
ADX7384
FL SUPPLY
ASSY
(AWX7871)
J3301
J1801 ADX7377
DIODE
ASSY
(AWX7841)
C1
ACH7164
FUSE ASSY
AL
(AWX7843)
AK
ADX7360
ADX7361
J1601
ADX7385
AN
TRANS (B) ASSY
(AWX7839)
POWER TRANSFORMER
A
ADX7385
B
(ATS7320)
AM
ADX7370
VSX-49TX ONLY
E
V-CONVERT
ASSY
(AWX7952)
R
MOTHER ASSY
(VSX-49TX : AWX7890)
(VSX-47TX : AWX7891)
ADX7371
ADD7333
(GLY)(GLY)
J1207
ADX7368
J1201
ADX7362
ADD7334
FM/AM TUNER
MODULE
(AXQ7237)
A
ADX7366
C2
ACH7164
J1208
ADX7368
AD
SP (A) ASSY
(AWX7848)
(BLK)
J1501
ADX7359
(BLK)
TRANS (A) ASSY
(AWX7838)
AB
AC PRIMARY ASSY
(AWX7834)
ADD7332
J1206
K
ADX7364
POWER SW
ASSY
(AWX7840)
HEADPHONE
ASSY
(AWX7874)
CN1007
ORG : LIVE
AC INLET ASSY
: VKP2251
AJ
SP (B) ASSY
(AWX7852)
FU1 : AEK-306
(12A/125V)
AC
C
WHT : NEUTRAL
D
21
5
6
7
8
1
VSX-49TX, VSX-47TX
3.3 FM/AM TUNER MODULE
A
FM/AM TUNER MODULE (AXQ7237)
A
(FM)
23
4
(FM)
(FM)
(FM) (FM)
B
(FM) (FM)
(FM)
(AM)
C
(AM) (AM)
(AM)
(FM)
(FM)
(FM)
(AM)
(FM) (FM)
(AM)
D
22
A
1234
5
678
VSX-49TX, VSX-47TX
(TX)
: AUDIO SIGNAL ROUTE (TUNER)
(AM)
(AM)
: AM SIGNAL ROUTE
(FM)
: FM SIGNAL ROUTE
CN2705
A
(AM)
(FM)
(AM)
(AM)
(AM)
(AM)
(TX)
(TX)
(TX)
(TX)
(TX)(TX)
R
CN5802
B
C
D
: The power supply is shown with the marked box.
A
5
6
7
8
23
1
VSX-49TX, VSX-47TX
3.4 A/V I/O ASSY
A
23
4
(MR)
(DVD) (DVD)
MR MUET
ON : +4.3V
OFF : -20V
(MR)
MR
Volume
(MR)(MR)
B
(DVD)
(DVD) (DVD) (DVD) (DVD)
(REC)
(DVD)
A/V Function
Selector
(FV)
(MIC)
(MIC)
(MIC)
(F)
(F)
(FV)
(REC)
C
(REC)
(REC)(REC)
D
VSX-49TX ONLY
VSX-47TX
ONLY
24
B
1234
5
678
VSX-49TX, VSX-47TX
(MR)
(F) (F)
(DVD)
(MR)
(MR)
(DVD)
(MR)
(REC)
(MR)
(REC)
(MR)
(REC)
(REC)
(MR)
(REC)
(MR)
(MR)
A/V I/O ASSY
B
A
(VSX-49TX : AWX7938)
(VSX-47TX : AWX7939)
CN5821
R
(MIC)
(MIC)
B
(MIC)(MIC)(MIC)
(FV)(FV)(FV)
(F)
(MR)
(FV)
(MR)
(REC)
CN5820
R
A/V MR Function
Selector
(F) (F)
C
(DVD)
: AUDIO SIGNAL ROUTE (DVD)
(REC)
: AUDIO SIGNAL ROUTE (REC)
(MR)
: AUDIO SIGNAL ROUTE (MR)
(MIC)
: AUDIO SIGNAL ROUTE (MIC)
(F)
(REC)(REC)
: AUDIO SIGNAL ROUTE (F)
(FV)
: AUDIO SIGNAL ROUTE (FV)
D
B
5
6
7
8
25
1
VSX-49TX, VSX-47TX
3.5 COMPOSITE ASSY
23
4
A
COMPOSITE ASSY (VSX-49TX : AWX7942)
C
(VSX-47TX : AWX7943)
(DVD)
B
(DVD)
Video Function
(Composite)
Selector
(DVD)
I/O Selector
(Composite)
Q2106
2SC4081
Q2107
2SC4081
VSX-49TX
ONLY
C
VSX-49TX
D
ONLY
Video MR
Function
Selector
(Composite)
REC OUT Selector
(Composite)
Q2101
2SC4081
Q2102
Clamp
2SC4081
Q2103
2SC4081
26
C
1234
5
678
VSX-49TX, VSX-47TX
OSD
Input-Selector
(OSD)
Q2105
2SC4081
(OSD)
Q2108
2SC4081
(OSD)
(OSD)
: The power supply is shown with the marked box.
(DVD)
: VIDEO SIGNAL ROUTE (DVD)
: VIDEO SIGNAL ROUTE
(OSD)
: VIDEO SIGNAL ROUTE (OSD)
6dB AMP.
(OSD)
(OSD)
A
B
OSD
Q2104
UN5212
(OSD)
Port Expander
Port Expander
(OSD)
CN3301
G
C
D
CN5822
R
5
6
7
C
8
27
1
VSX-49TX, VSX-47TX
3.6 S-VIDEO ASSY
(Y)
23
(Y)
4
A
(C)
(Y)(Y)
Video
Function
Selector
(Y)
(Y)
(Y)
(C)
Video
Function
Selector
(C)
(C)
(C)
(Y)
(C)
(Y) (Y)
(C)
Q2302
2SC4081
Q2303
2SA1576A
(Y)
(Y)
(Y)
(C)
(Y)(Y)
B
Port
Expander
(C)
Sync. Sep.
(Y)(Y)(Y)
(C)(C)
C
D
VSX-49TX
ONLY
(Y)
(C)
(Y)
REC OUT
Selector (Y)
(Y)
(C)
(Y)
(Y)
(C)
(Y)
(C)
(Y)(Y)
(C)
REC OUT
Selector (C)
(C)
(C)(C)
(C)
28
VSX-49TX
ONLY
D
1234
5
678
VSX-49TX, VSX-47TX
S-VIDEO ASSY (VSX-49TX : AWX7948)
(Y)
(OSD)
(OSD)
(Y)
(Y)
(Y)
(Y)
S/OSD SW
(OSD)
(Y)
D
(VSX-47TX : AWX7949)
(Y)
: Y SIGNAL ROUTE
(C)
: C SIGNAL ROUTE
(Y)
6dB AMP.
(OSD)
: VIDEO SIGNAL ROUTE (OSD)
A
(Y)
(Y)
(C) (C)
(C)
(Y)
(OSD)
S/OSD SW
(C)
(C)
(C)(C)
(Y)
(C)
(C)
(C)
(OSD)
(C)(C)
(C)
(OSD)
(C)
(C)
DC SW
(Y)
(C)(C)
(Y)(Y)
(C)
B
(C)(C)
(C)
(C) (C)
(Y)
(C)
(OSD)
(C)
(Y)
G
CN3302
C
D
CN5823
R
: The power supply is shown with the marked box.
D
5
6
7
8
29
1
23
VSX-49TX, VSX-47TX
3.7 V-CONVERT ASSY (VSX-49TX ONLY)
A
4
(Y)
(Y) (Y)
(Y)
(C)
Q2853
2SC4081
B
C
G
CN3304
(Y)
(C)
(OSD)
(Cr)
(Cb)
(CY)
Q2904
2SC4081
Q2852
2SA1576A
Q2851
2SA1576A
(Y)
0dB Buffer
0dB Buffer
(C)
Clock Gen.
(C)
Y/C Sep.
(Y)
CHROMA Decoder
(Y)
(Y)
(C)
(C)
Q2854
2SC4081
(Cb)
(Cr)
(C)
(CY)
(Cr)
(CY)
(Cb)
(C)
D
30
E
1234
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