NAD M12 Service Manual page 19

4.232_TRIG BOARD
D G N D
5V
C9316
10U/10V
AGND U9304
TLV1117-3V3
J9304
FROM AUDIO
3V3
R9301
IRE R9303
DGND
R9306
10R
3V 3T
C9304
22N
input1
L 9300 C
9 3 0 5
TRI G ON_OFF
FB
1
0 U / 1 0 V
TRI G IN
J9301 D G N D
IR E
T RI GO N _ O F F
T RI GIN
2 3 2 T X
DGND
2 3 2 RX
R9 3 13
T O FPP
3V3T 10RJ
DGND
232TX
R9314
232RX
120R
DGND
3V3
C9317 C9318
10U/10V 10U/10V
AGND AGND
3V3
L9301
AGND
5V
C9330
FB
C9321 C9322
100N X 7R
C9323
22N 10U/10V 10U/10V U9305
5V
V CC 1IN +
1IN - 1OUT
TX+
2IN + 2OUT
TX-
2IN - GND
AGND
S N75157
C9300
22u/6.3v
R93 00
C9301
10RJ
T DGND
100n
U9300
120R
DGND
120R
NC7WZ17
MGND
D930 3
4v7
C93 03
R93 08
TPG9300
100n
47KJ
U9301
R9 3 0 9
120R
C93 06
R9 3 12
120R
4v7 100 n
NC7WZ17
4v7 D930 4
100n
D930 5
DGND
DGND
C93 07
U930 2
DGND
C9 3 0 8 C9 3 0 9 3V 3T
16 C93 10
Foff EN 470nZ
22u/ 6.3 v
1 0 0 n
V cc C1+
C9311
gnd V +
100 n
10U/10V
T out C1-
Fon C2+
DGND
C93 14
T in C2-
C93 1
Rout Rin-
470 nZ
MAX3221
470 nZ DGND
Q 9300
R9323
KSC2690
15R
R9324
100R
D9308
BAV99
C9331 C9333 12V
D9309
10U/ 25V 10U/ 25V
R9325
3R9J
U9303
NC7WV17
AGND
22n
C9319
AGND
3V3
R9318
33R
R9319
33R
AGND
R9321
0R
S U B L
1
220P
F ROM AUDIO
2
3
R 9322
4 0R
S U B R
19
D9300
1SS352
R93 02
2K2J
C93 02
47N
R93 07
47KJ
10KJ
R93 10
R93 11
J9300A
trig i n
SCJ351P 00WS0B00G
MGND
J9302
G2
EMI 100p
Tx d a 1 3
C9312
Rxda 1 C9313 3
EMI 100p
RS232
MGND
C9332
100n
J9300B
R9326 SCJ351P 00WS0B00G
J9303
R9315
T9300
1 3 coax o ut
226R
2 4
MGND
SPDIF 1 : 1 B C9320
AGND
22P
AGND
3V3
OP9300
L9302
FB
2
1
opt ou t
AGND
C9324 C9325
22u/ 6V3 100N X 7R GP1FTX
D9306
1S S 352
R9320
J9305B
C9327 100R
C 9328
D9307
220P
1S S 352
C9326
MGND
J9305A