TX-NR901
SCHEMATIC DIAGRAM 1
DISPLAY AND SUB MICROPROCESSOR SECTIONS
JL7201A
P7559B
P7559A
Q7504
Q7503
2SC2712
OR
KTC3875
NP
NP
NP
NP
NP
NP
P36
F2
F2
NP
NP
P35
P34
P33
P32
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
16G
15G
14G
13G
12G
11G
10G
9G
8G
7G
6G
5G
4G
3G
2G
1G
NP
NP
F1
F1
Q7501
16-BT-115GNK
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
26
27
28
29
30
31
32
33
34
35
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
62
63
64
65
66
P7203
D7533
STANDBY
D7534
UPSPL
D7535
PURE AUDIO
S7569
VOLUME
D7521
SML1216C
DVD
D7522
V1
D7523
V2
D7524
V3
D7525
V4
D7526
V5
D7527
T1
D7529
TU
D7530
PH
D7531
CD
D7532
NET
Q7537
KTC3875
OR 2SC2712
Q7536
KTC3875
OR 2SC2712
Q7524
Q7533
Q7534
Q7535
Q7532
Q7521
RN1402
KRC102S OR
Q7522
Q7523
Q7525
Q7526
Q7527
Q7529
Q7530
Q7531
Q7502
M66005FP
DIG01
12
DIG02
11
DIG03
10
DIG04
9
DIG05
8
DIG06
7
DIG07
6
DIG08
5
DIG09
4
DIG10
3
DIG11
2
DIG12
1
DIG13
64
DIG14
63
DIG15
62
DIG16
61
P0
18
P1
17
SCK
15
SDATA
16
SEG01
59
SEG02
58
SEG03
57
SEG04
56
SEG05
55
SEG06
54
SEG07
53
SEG08
52
SEG09
51
SEG10
50
SEG11
49
SEG12
48
SEG13
47
SEG14
46
SEG15
45
SEG16
44
SEG17
43
SEG18
42
SEG19
41
SEG20
40
SEG21
39
SEG22
38
SEG23
37
SEG24
36
SEG25
35
SEG26
34
SEG27
33
SEG28
31
SEG29
30
SEG30
29
SEG31
28
SEG32
27
SEG33
26
SEG34
25
SEG35
24
SEG36
23
VCC1
19
VCC2
60
VP
32
VSS
22
XIN
21
XOUT
20
~CS
14
~RESET
13
D7501 UDZ11B
C7506
474J
7510
3/50
C7503
100/6.3
C7520
104Z
C7505
104Z
C7509 474Z
C7502 474Z
C7211
102K
C7212
102K
C7508
101J
C7507 104Z
C7504
101J
C7559
104Z
C7569
104Z
S7559
DISPLAY
S7578
TUNING UP
S7577
TUNING
DOWN
S7576
MENU
S7575
MEMORY
S7574
FM MODE
S7541
STANDBY
/ON
S7571
DSP <
S7572
DSP >
S7573
PTY/TP
DIMMER
S7579
ENTER
S7551
TAPE
S7549
VIDEO 5
S7548
VIDEO 4
S7547
VIDEO 3
S7546
VIDEO 2
S7545
VIDEO 1
S7544
DVD
S7543
AUDIO SEL
S7542
PUREAUDIO
S7558
PRESET <
S7557
PRESET >
S7556
EXIT
S7554
CD
S7555
NET
S7553
PHONO
S7552
TUN
S7565
OFF
S7564
ZONE 2
S7563
REC
S7566
STEREO
S7562
Z2 LEVL>
S7567
SURROUND
S7561
Z2 LEVL<
S7568
THX
R7511
10K
R7512
10K
R7502 220
R7340
10K
R7339
10K
R7316
1K
R7315
1K
R7578
12K
R7505
1K
R7506
1K
R7508
1K
R7507
1K
R7504
27K
R7574
330
R7577 3.9K
R7576 2.2K
R7575 1.2K
R7573
820
R7541
330
R7571
470
R7572
560
R7558
12K
R7551 12K
R7548 3.9K
R7547 2.2K
R7546 1.2K
R7545 820
R7544
560
R7543
470
R7542
330
R7540
470
R7534
470
R7526
10K
R7525
10K
R7524
10K
R7523
10K
R7522
10K
R7521
10K
R7520
10K
R7519
10K
R7518
10K
R7517
10K
R7516
10K
R7515
10K
R7514
10K
R7513
10K
R7567 3.9K
R7566 2.2K
R7533
470
R7535
270
R7536
270
R7539
180
R7538
180
R7557 3.9K
R7564
820
R7565 1.2K
R7556 2.2K
R7555 1.2K
R7554
820
R7563
560
R7562
470
R7561
330
R7553
560
R7552
470
P36
P35
P34
P33
P32
P31
P30
P29
P28
14G
13G
11G
9G
8G
7G
6G
5G
4G
3G
2G
1G
12G
10G
2V
P27
P26
P25
P24
P23
P22
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
16G
15G
14G
13G
GND
-VP
P28
P29
P30
P31
P32
P33
P34
P35
P36
1G
2G
3G
4G
5G
6G
7G
8G
9G
10G
11G
12G
FLOSDDA
FLOSDCL
FLCS1
FLRES
DGRE
DRED
ZV1
ZV5
RED
GREEN
ZV4
ZV3
ZV2
LEDGRE
VBJ
VAJ
LEDRED
SUBREQ
RZDVD
RZV1
RZV2
RZV3
RZV4
RZV5
RZT1
RZAM
RZPH
RZCD
RZNET
MAINSCK
MAINSO
SUBSO
PURE
UPSPL
STBY
VBJ
TRX
NETTX
VAJ
K0
K1
K2
K3
or HNA-16M M40T
H. 7)
NAETC-7739
Q7521-Q753 5
D7521-D7532
RED
GREEN
BLUE
FLASH WRITER
U1
U3
A
1
2
3
4
5
B
C
D