NAD T747 Service Manual page 60

SCHEMATIC DIAGRAM (AMP #1 PART)
+12V
FL_IN 10/50V
R4101
C4101 220
C_IN
10/50V R4301
220
C4301
FL_IN FL_IN
GND
C_IN C_IN
GND
FR_IN FR_IN
GND
SL_IN SL_IN
GND
BSL_IN BSL_IN FR_IN 10/50V R4201
GND 220
C4201
SR_IN SR_IN
GND
BSR_IN BSR_IN
10/50V R4401
SL_IN
220
C4401
3-63
R4106
C4113
470K R4115
C4102 C4105
47/50V 4.7/0.25W
Q4115 Q4124
KSC2785Y
220P 33P 2SD2560
Q4101 Q4102 R4122
KTA1268GR KTA1268GR
10K
R4105
R4112
33K VR410
220 3.3K
Q4112
KTD1028B
R4103
33K
R4107
47K
Q4110 Q4116
KTC3200GR
2SB1647
R4116 1 2
FL CH
4.7/0.25W CN410
R4117
10
R4306
C4313 R4315
470K
C4302 C4305
4.7/0.25W
47/50V Q4315 Q4324
KSC2785Y
220P 33P 2SD2560
Q4301 Q4302 R4322
KTA1268GR KTA1268GR
10K
R4305
R4312
33K
3.3K
VR430
220
Q4312
KTD1028B
R4303
33K
R4307
47K
Q4310
Q4316
KTC3200GR
2SB1560
R4316 1 2
C CH
4.7/0.25W CN430
R4317
10
R4206
C4213 R4215
470K
C4202 C4205
47/50V 4.7/0.25W Q4224
Q4215 KSC2785Y
220P 33P
Q4201 Q4202
2SD2560 R4222
KTA1268GR KTA1268GR
10K
R4205
R4212
33K
3.3K
VR420
220
Q4212
KTD1028B
R4203
33K
R4207
47K
Q4210
KTC3200GR Q4216
2SB1647
R4216 1 2
FR CH
4.7/0.25W CN420
R4217
10
R4406
C4413 R4415
470K
C4402 C4405 Q4424
47/50V 4.7/0.25W
KSC2785Y
Q4415
Q4401 220P 33P
Q4402 R4422
2SD2560
KTA1268GR KTA1268GR
10K
R4405
R4412
33K
VR440
3.3K
220
Q4412
KTD1028B
R4403
33K
R4407
47K
Q4410
Q4416
KTC3200GR
2SB1647
R4416 1 2
SL CH
4.7/0.25W CN440
R4417
10
OVER
B+
C4502
L4126
220P Q4502
0.5uH Q4501
KTA1268GR KTA1268GR
R4126
SR_IN 10/50V R4501
FL_CH
22
220
R4127 FL C4501
22
R4503
33K
FL
B-
B+
OVER
C4602
L4326
220P Q4602
Q4601
0.5uH
KTA1268GR KTA1268GR
R4326 10/50V
BSL_IN R4601
CNT_CH
22 C4601 220
CNT
R4327
22
R4603
C
33K
B-
B+
OVER
C4702
220P
Q4701 Q4702
L4226 KTA1268GR KTA1268GR
0.5uH BSR_IN 10/50V R4701
R4226
220
C4701
FR_CH
22
R4227 FR
R4703
22
33K
FR
B-
R4823
560K
B+ C4823
2.2/50V
OVER
Q4821
FL_IN KTC3200GR
Q4825
FR_IN
KTA1268GR
C_IN
SL_IN
SR_IN
Q4822
BSL_IN
L4426
KTA1268GR
0.5uH BSR_IN
R4426
SL_CH
22
R4427 SL
22
R4826
SL
2.2K
B-
B+
OVER
R4506
C4513 R4515
470K
C4505 Q4524
47/50V 4.7/0.25W
Q4515 KSC2785Y
33P
2SD2560 R4522
10K
R4505
R4512
33K
VR450
220 3.3K
L4526
Q4512
0.5uH
KTD1028B
22
R4526
22
R4507 R4527
47K
Q4510
KTC3200GR Q4516
2SB1647
R4516 1 2
SR CH
4.7/0.25W CN450
B-
R4517
10
C4517
100/100V
B+
OVER
R4606
C4613
470K R4615
C4605 Q4624
47/50V 4.7/0.25W
KSC2785Y
Q4615
33P
2SD2560 R4622
10K
R4605
R4612
33K
3.3K
VR460 L4626
220 Q4612
0.5uH
KTD1028B
22
R4626
22
R4607
R4627
47K
Q4610
Q4616
2SB1647
KTC3200GR
R4616 1 2
BSL CH
4.7/0.25W CN460
R4617
B-
10
B+
OVER
R4706
C4713 R4715
470K
C4705 Q4724
47/50V 4.7/0.25W
Q4715 KSC2785Y
33P
2SD2560
R4722
10K
R4705
R4712
33K
VR470 3.3K
L4726
Q4712
KTD1028B 0.5uH
22
220
R4726
22
R4707 R4727
47K
Q4710
Q4716
KTC3200GR
2SB1647
1 2
R4716
CN470
BSR CH
4.7/0.25W
R4717 B-
R4825
10
B+
22K
B+
R4828 B+2
0.1 5W
Q4826
KTA1268GR R4829
0.1 5W
R4831 R4832
2.7K/1.5K 150/680
R4827
560K T747 T737
R4831 2.7K 1.5K
R4832 150 680
-12V
3-64
SR_CH
SR
SR
BSL_CH
BSL
BSL
BSR_CH
BSR
BSR