TX-NR900/E
SCHEMATIC DIAGRAM 9-1
Mother Board Section
P202
P204
P203
P7201B
P7004A TO NADG-7687 (SCH. 2)
P7002A TO NADG-7687 (SCH. 2)
Q2913
NJM4565M
3
2
1
Q2910
NJM4565M
3
2
1
Q2913
NJM4565M
5
8
6
4
7
Q2910
NJM4565M
5
8
6
4
7
Q201
MPD4721
GS
C1+
2
C1-
4
C4+ 20
C4- 18
C5+
5
C5-
6
7
8
14
13
GND19
12
11
9
10
VCC
3
VCHA15
VDD
1
VSS 17
STBY 16
L201
BLM21A102F
P201
RS-232
C2
0
6
1
04Z
C233
104Z
C205
104Z
C225
104Z
C29
1
7
10/
16
C29
1
8
10/
16
C222
47/16
C223
47/16
C2
9
2
1
10
0/6.3
C2
0
7
100/6.3
C201
1/50
C202
1/50
C203
1/50
C204
1/50
C22
1
47
/16
C232
1000/2
5
C2
3
1
10
/
1
6
C2903
10/16
C2904
10/16
C2902
10/16
R203 330
R201 330
R205
330
R208
330
D201
1SS352
D202
1SS352
D203
1SS352
E2903
R2906
10
K
R2905
10K
R2911
1K
R2
9
1
0
2.
2
K
R2921 3.3K
R2922
10K
R2923 10K
R232
1K
R231
1K
R211
100
R224
1K
R221
2.2K
R223
2.2
K
R212
220
R222
1
K
R234
150 2W
R233
2.2 (1/2W)
R2904*
0
R2
9
1
4
22
K
R2915
22K
R2916
22K
R29
1
8
1.5K
R2917
1.5K
R2919
22K
R2908
1.5K
Q2911
RN1402
Q223
RN1402
Q2922
RN1402
Q2921
RN1402
Q221
RN1402
Q211
PC817X
Q233
NJM78M56
G
I
O
Q2912
2SB1068
Q224
2
SB1068
Q222
2SB106
8
P6830B
TO NAETC-7694
(SCH. 7)
P6832B
JL931A
P4012
A
Q232
2SC2712
Q231
2SC2712
Q2905
2SC2712
Q2907
2SC2712
P40
20A
P4011A
P7003A TO NADG-7687 (SCH. 2)
P800A TO NADG-7687 (SCH. 2)
P4010A
P29
01B
P2906
Q2904
RN2402
Q2906
RN2402
R227
RXE030
R228
RXE030
R2909
RXE030
C2908
2
72J
C2922
22 3J
C2
916
122
J
SUBREQ
5.6S
RLGND
RLGND
MAINCL
MAINSO
SUBSO
NETTX
NETRX
232TX
232RX
SUBREQ
232TXD
MAINCL
MAINSO
SUBSO
232R XD
NET
SUBRES
MAINREQ
SUBPOFF
SDA
5.6S
SCL
+13V
DSPCL
GNDDAC
XRESET
GNDDAC
DSPDA
+24V
XDARST
RLGND
XDACS
RLGND
DAMUTE
DTADIM
+12V
GNDDSP
12TRGB
GNDDSP
12TRGA
GNDDAC
SPRLF
GNDDAC
SPRLZ
+5VDSP
POWER
+5VDAC
12TRGZ
-15V
232RXD
+15V
232TXD
RDSDET
HPL
RI
AMUT
HPE
IRIN
Z2MUT
HPR
HPMUT
Z2LMUT
TNCL
GND
TNDA
GND
TNCS1
-15V
TNCS2
GND
VLSTB
+15V
VLDA
TNCL
VLCL
TNDA
TNCS1
AFCL
TNCS2
AFDA
VLSTB
AFSTB
VLDA
STEREO
VLCL
SD
AFCL
TUMUT
AFDA
PLLCE
AFSTB
POWER
SPRLF
SPRLZ2
12VTRGZ
12VTRGB
Z2MUTE
12VTRGA
AMUTE
PDIRECT
HPMUTE
R
5.6S
RZ2R
+
+13S
GNDADIN
-
RT
GNDADIN
GNDADIN
+
RT
LT
GNDADIN
GNDADIN
S
LT
RZ2L
T
DOSBL
DOSBL
V
GND
GND
V
DOSBR
DOSBR
P
GND
GND
A
DOL
DOL
A
GND2
G ND2
A
DOR
DOR
GND
GND
DOSL
DOSL
R
GND
GND
G
DOSR
DSR
GND
GND
G
DOC
L
GND
GND
G
DOSW
DOSW
R
Except UDD, UDC and UPA
NAETC-7733
NAAR-7728
TO NAETC-7695
(SCH. 7)
U39
NAAF-7718 (SCH. 4)
NAAF-7718
(SCH. 4)
NAAF-7718 (SCH. 4)
NAAF-7718
(SCH. 4)
NAPS-7691(SCH. 8)
R2904 0: UDD,UDC, and UPA
Open: Other models
Except UDD, UDC and UPA
A
1
2
3
4
5
B
C
D