SCHEMATIC DIAGRAM-3
A
1
2
3
4
5
B
C
D
E
F
G
P7202
Q7201
74HCU04
1
2
L7202
NCH-1471
L7203
NCH-1471
L7201
NCH-1479
L7204
NCH-1479
U7201
TORX178B
Q7201
74HCU04
5
6
Q7201
74HCU04
11
10
Q7201
74HCU04
3
4
Q7201
74HCU04
9
8
Q7201
74HCU04
13
12
P701
JL921A
P261
C273
822J
C275
182J
C276
182J
C274
822J
P704A
P306A
P706A
JL921B
P303A
P305A
P7001B
JL931B
JL911B
Q932
2SA1015
Q922
79M12
G
I
O
P304A
P707A
Q223
DTA114ES
P101A
Q221
2SD1468S-D
Q222
2SD1468S-D
Q225
KTC3199
Q3501
NJM4565M-D
5
6
4
7
Q3301
NJM4565M-D
3
2
4
1
Q3501
101J
NJM4565M-D
3
8
2
1
Q3301
NJM4565M-D
5
8
6
7
P705A
P403
JL912A
E301
P520
Q261
NJM4565M-D
5
6
7
Q341
BA15218
5
6
7
Q343
BA15218
3
2
1
Q261
NJM4565M-D
3
8
2
4
1
Q341
BA15218
3
8
2
4
1
Q343
BA15218
5
8
6
4
7
R921
0.22
(1/2W)
R922
0.22
(1/2W)
R925
0.22 (1/2W)
R923
0.22 (1/2W)
R924
0.22 (1/2W)
C281
*
C265
*
C7210
101J
C7206
101J
C7211
104Z
C7207
104Z
C7209
104Z
C7202
104Z
C7201
104Z
C261
C262
C264
C272
C271
C263
C341
*
C342
*
C349
223Z
C345
*
C346
*
C922
104Z
C921
104Z
C938
104Z
C939
104Z
C940
104Z
C925
104Z
C941
104Z
C934
104Z
C932
104Z
C931
104Z
C3502
101J
C3503
C3504
101J
C227
223Z
C228
223Z
C225
101
C3302
101J
C3402
101J
C3403
101J
C3404
101J
C3303
101J
C3304
101J
C7205
100/6.3
C7203
100/6.3
C347
10/16
C279
10/16
C280
10/16
C278
47/16
C277
47/16
C268
10/16
C267
10/16
C270
100/6.3
C269
100/6.3
C348
10/16
C3201
47/50
C3101
47/50
C3151
47/16
C3152
47/16
C937
220/63
C942
10/16
C926
10/16
C928
10/16
C927
10/16
C943
10/16
C924
1000/35
C936
220/35
C923
4700/35
C935
10/16
C933
2200/16
C3308
10/16
C226
3.3/50
C223
3.3/50
C222
10/16
C224
2.2/50
C3307
10/16
R350 56K
R349 56K
R344
330
R343
330
R7218
0
R7207
100
R7209
82
R7213
82
R7203
000J
R7206
000J
R7212
100
R7216
100
R7211
100K
R7215
100K
R7210
10K
R7214
10K
R221
2.2K
R222
2.2K
R223
100K
R224
100K
R278
100K
R277
100K
R263
1M
R264
1M
R262
330
R261
330
R272
820
R266
1K
R268
56K
R270
220K
R274
470K
R265
1K
R267
56K
R269
220K
R271
820
R276
39K
R275
39K
R273
470K
R341
330
R347
56K
R342
330
R348
56K
R345
330
R351
56K
R346
330
R352
56K
R929
33 (1W)
R3153
1K
R3152
1K
R3151
1K
R926
5.6 (1W)
R935
3.9K
R940
3.9K
R936
33K
R934
22
(1/2W)
R938
1
(1/2W)
R941
18
(1/2W)
R933
1
(1/2W)
R931
470
R932
2.2
(1/2W)
R3502
220K
R3503
2.2K
R3504
3.3K
R3501
330
R229
680K
R231
1K
R230
3.3K
R3302
220K
R3402
220K
R228
100K
R226
22K
R225
22K
R227
1K
R3304
3.3K
R3403
2.2K
R3404
3.3K
R3401
330
R3303
2.2K
R3301
330
MULTI
MULTI
MULTI
MULTI
MULTI
BYPASS
FSWSDO
FSWSLT
FSWCLK
VSS
GND
Q3151
TC9164
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
DSP
26
FS96
27
VDD
28
P242B
P242A
P341
D937
RL1N4003
D938
RL1N4003
D932
D936
D935
RL1N4003*4
D934
D933
D941
RL1N4003
D940
RL1N4003
D901
RS403M
+
AC1
Q933
78M05
G I
O
Q921
78M12
G I
O
Q934
78M05
G I
O
Q931
78M56
G I
O
D939
30B
D931
UDZ6.2B
JL931A
JL961A
FAC1
FAC2
VCTLB
VCTLA
POWER
SD
AMUT
TMUT
POFF
PLLCE
SCK
SDO
RDS
GND
-VP
STEREO
SD
MUTE
R-OUT
GND
L-OUT
RDSSIG
+12V
GND
SCK
SDO
PLLCE
VOLSLT
5.6V
VOLSLT
SCK
SDO
GND
GAINCTL
STEREO
GAINCTL
FMSTGOUT
TMUT
RDS
-VP
FSWSLT
FSWSCK
FSWSDO
AMUT
FSWSDO
FSWSLT
FSWSCK
24V
GND
+12V
GND
-12V
GND
POWER
+13V
CD-L
CD-R
PH-L
PH-R
TU-L
TU-R
LT
RT
GND
GND
FAC2
FAC1
GND
POFF
+5VDSP
+5V
GND
VCTLA
VCTLB
FSWSLT
+12V
FSWSCK
-12V
FSWSDO
SWGND
+5VDSP
SWOUT
+5V
SWGND
GND
GND
DIG3
VCTLB
DIG2
VCTLA
GND
+5V
DIG1
GND
GND
24V
RT
LT
LT
TORO
RT
TOLO
GND
DOL
SWGND
SWOUT
DOR
DOLS
TOLI
TOLI
LSOUT
TOLO
DORS
COUT
TORI
FSWSLT
DOC
TORO
MIXL
LT
MCL
DOLS
MCLS
DOC
MCC
DOSW
TOCI
MIXL
AMLSI
GND
MIXR
AMRSI
AMSWI
-12V
-12V
+12V
+12V
+12V
MIXR
RT
MCR
MCRS
DOSW
MCSW
GND
GND
FSWSCK
-12V
MCR
MCR
FSWSDO
MCL
MCL
TORI
MCRS
MCRS
AMSWI
MCLS
MCLS
RSOUT
MCC
MCC
MCSW
MCSW
*
TX-DS494
HT-R490
C265
104Z
NO
C281
NO
104Z
NAPS-7055
TX-DS494 ONLY
TO NAAF-7050
TO NAETC-6795
TO NAETC-6795
TO NADG-7049
TO NADG-7049
TO NADG-7049
TX-DS494 ONLY
PHONO EQ
TO NAAF-7050
TO NAPS-7051 (PART-6)
TO NADG-7049
TO NADG-7049
NAAR-7044
TO NAAF-7050
TO NAAF-7050
TO NAETC-7055
TO NADIS-7043
TO NAAR-7044
INPUTS
MULTI-CH
TO NAETC-7056
NAAF-7057
RIGHT
CD
LEFT
RIGHT
PHONO
LEFT
P,W type:331K
D,J type:NONE
C341-346
LEFT
RIGHT
L-SUR
R-SUR
CENTER
SUBWOOFER
TO TUNER UNIT
TO NAAF-6789
or 1SR139-100
RL1N4003
or GP104003E
D937,D938
D933-D936,D940,D941
or 1SR139-100
or GP104003E
RL1N4003
20
10
MP Type only
P,W type:152K
P,W type:471J
P,W type:101J
D,J type:101J
D,J type:101J
D,J type:NONE
C261,262
C263,264
C271,272
24.2V
-48.4V
23.5V
29.3V
+12.5V
5.6V
12V
-12V
5V
U8
MAIN PC BOARD
U21
MULTI CHANNEL INPUT TERMINAL PC BOARD
U19
REGULATOR
CIRCUIT
PC BOARD
TX-DS494/HT-R490
