NAD T 775 Service Manual page 60

TRIGGER
D2308
N.I. FOR CE
D2308
CM1213-08MS
+5V_K
1 10
2
9
5 8
3
7
M2307
N.I. FOR CE 4 6
+5V_OUT
DGND
M2307
XM CONNECTOR
1
2
3
4 DGND
DGND
+5V_OUT
M2306 PIN 7 IS GOING TO DAB MODULE PIN 15(S1_DIN).
N.I.
PIN 4 IS FROM DAB MODULE PIN 16(S1_DOUT).
8
7
DAB_TXD
4 DAB_RXD
3 DAB_IN
1 +5V_OUT
2 +5V_OUT
5
6 DGND
9
DGND
M2306
DAB CONNECTOR FOR CE
M2305
R2320
47
1
2
3
4
R2354
5
6 22
7
8
C2321 C2322 C2323 R2321
9 N.I. N.I. N.I.
47
50V 50V 50V
CHGND CHGND CHGND
DGND
+5V_K
Q2320
DTA114EKA
R2303
2.2k
C2301
0.01u
DGND
C
B Q2321
2_5
M2301-A DTC114EKA
R2302
IR IN
N.I.
E
2_1
DGND
DGND
CHGND_JACK
+5V_K
R2310
100k
Q2308
DTC114EKA
+12V_D C
R2309
1_5 B
M2301-B
33k
SW
TRIGGER IN C2305
R2308 0.1u
E
10k
50V
1_1
DGND
DGND
CHGND_JACK
X2351 R2359
N.I. 100
R2358
100
DGND
CHGND_JACK
CHGND
N.I. FOR T175
+5V_K
+5V_K
TRIGGER MODE SWITCH SOFT CLIPPING SWITCH
+5V_K
C2324
1u
R2323
50V
1 16 R2322
C1+ VCC 10k
10k
C2325 S2302-B
ON
10u
OFF 1
2 V+ GND 15 16V 6 OFF 3
4 5
C2318 AUTO
2
1u
S2301-A
50V
3 14
C1- T1_OUT
ON
OFF 2
5 OFF 4
3 6
4 C2+ R1_IN 13 AUTO
1
C2319
S2301-B
1u
S2302-A
50V
5 12
C2- RI_OUT
6 V- T1_IN 11
C2320 DGND DGND
7 10
T2_OUT T2_IN
1u
50V
8 R2_IN R2_OUT 9
DGND DGND
U2301
ST232BDR
+5V_K
R2304
10k
+12V_D
Q2302
M2302-A M2303-A
C
DTA114EKA
IR OUT 1 IR OUT 2
R2305
Q2301
B
2_5
DTC114EKA
560
C2302
47p
E 50V
2_1
C
DGND DGND
B
IR_IN IR_O_1
E
Q2303
DTC114EKA
CHGND_JACK
DGND
M2302-B Q2309 M2303-B
+12V_D
2SB1275
TRIGGER OUT 1 TRIGGER OUT 2
R2311 L2303 R2312
1_5
15uH 3.3 1W
SW 3.3 1W
C2306 R2344
0.1u 10k
D2301 D2302
50V
1_1
LL4148 LL4148
DGND
R2313
10k
DGND
C
CHGND_JACK
B
Q2310
DTC114EKA
TRIG_IN
E
DGND
+5.3V +5V_V
U2302
R2356 R2357 TPS2011A
0 N.I.
1 8
GND OUT8
2 7
IN2 OUT7
3 6
IN3 OUT6
4 5
EN OUT5
C2329
10u
16V
C2326
0.1u
50V
DGND DGND DGND
R2324
1.8k
+12V_D
Q2304
M2304-A
DTA114EKA
IR OUT 3
R2306 R2307
2_5 2_5
560 560
C2303 C2304
47p 47p
50V 50V
2_1 2_1
C
DGND DGND
B
IR_O_2
E
Q2305
DTC114EKA
CHGND_JACK CHGND_JACK
DGND
Q2311 M2304-B
+12V_D
2SB1275
TRIGGER OUT 3
R2314 L2302 R2315 R2317 L2301
1_5 1_5
15uH C2307 R2345 15uH C2308
SW 3.3 1W 3.3 1W SW 3.3 1W
0.1u 10k 0.1u
50V 50V
D2303 D2304
1_1 1_1
LL4148 LL4148
DGND
R2316
10k
DGND DGND
C
CHGND_JACK
CHGND_JACK
B TRIG_OUT_2
TRIG_OUT_1
Q2312
DTC114EKA
E
DGND
58
+3.3V
C2327
0.1u
+3.3V
50V
R2347
N.I.
DGND
DAB_TXD
R2329
C
N.I.
R2331 R2332
Q2316
B 0 0
N.I.
C
E
Q2317 B
N.I.
DGND
E
DGND
+5V_K
Q2316, Q2317, Q2318, Q2319
DTC114EKA FOR CE
R2348
+5V_K
N.I.
R2329, R2348
4.7k FOR CE
R2330 C
R2330
N.I.
Q2319
B
N.I. 1k FOR CE
C R2331, R2332, R2347
Q2318 E N.I. FOR CE
B
N.I.
DAB_RXD DGND
E
DGND
+5V_K
C2314 +5V_K
10u C2315
U2303 0.1u
16V
50V
SN74HC86DT
R2339
1 1A VCC 14 0
DGND
+12V_D
2 13
1B 4B
Q2306
DTA114EKA
R2340
3 1Y 4A 12
N.I.
R2341
4 11
2A 4Y
DGND
15k
5 2B 3B 10
C
6 9
2Y 3A
B
IR_R
7 GND 3Y 8
R2351
E 10k
Q2307
DTC114EKA
DGND DGND
C2317 C2316
100p 10u
50V 16V
DGND DGND DGND
Q2313
+12V_D
2SB1275
R2318
R2346 3.3 1W
10k
D2305 D2306
TRIG_OUT_3
LL4148 LL4148
DGND
R2319
10k
C
B
Q2314
DTC114EKA
E
DGND
+5V_V +5.3V +12V_D +5V_K
J2301A
To Conn#2 J2301B
To MCU J2301B (T175)
DAB_TXD_5V 1
DAB_RXD_5V 2
DAB_IN 3
SC_1 4
SC_2 5
S_CLIP_IND 6
AUTO/OFF 7
232_TXD 8
232_RXD
9
IR_O_1 10
IR_O_2 11
XM/DAB_PWR 12
IR_R_MIX 13
TRIG_IN 14
TRIG_OUT_1 15
TRIG_OUT_2 16
TRIG_OUT_3
17
DGND 18
+5V_K 19
+12V_D 20
IR_R 21
+5.3V 22
+5V_V 23
24
25
26
C2330 C2328
N.I. 10u
16V 16V
DGND DGND DGND
C2330
10u/16V FOR CE
D2307
+5V_K N.I. +3.3V
U2304
N.I.
IN OUT
C2311 C2310 C2309
N.I. N.I. N.I.
16V 50V 16V
DGND
U2304 C2311
LM1117S 3.3V FOR CE 47u/16V FOR CE
D2307
LL4148 FOR CE
C2309
10u/16V FOR CE
C2310
0.1u/50V FOR CE