Denon AVR-X2300W Service Manual page 26

SCH20_AMP1
S920_X2300 AMP SCH
51.6V
R401
ZD401 R402
1K2
ZJ5.1A 100K
Q401
51V
KTA1024Y
R409 R410
150K C527
JUMPER
OPEN
Point A
C405
100P-J
R427 C408 R428 2
1K2 47/50(ROB) JUMPER
1
5
Q407
HN4A06J
R436
R437
470K C413 R710
33K
2N2-K JUMPER
R440
150
C520
CP401 OPEN
R441
1K2(1)
CP401 -52V
SC52137-131A
Voltage A
FL
AGND AGND
SL
AGND
C
AGND
SR
AGND R444
ZD404 R446
1K2
FR
ZJ5.1A 100K
AGND AGND
Q413
SBL
KTA1024Y
AGND
SBR R452 R453
150K C528
JUMPER
OPEN
TO CN401
C421
100P-J
R471 C424 2
R472
1K2 47/50(ROB)
JUMPER
1
5
Q408
HN4A06J
R480 R481
C429 R711
470K 33K
2N2-K JUMPER
R484
C521
150
OPEN
R485
1K2(1)
R488
ZD407 R490
1K2
ZJ5.1A 100K
Q425
KTA1024Y
R496
R497
C529
150K
JUMPER
OPEN
C437
100P-J
R514 C440 2
R515
1K2 47/50(ROB)
JUMPER
1
5
Q419
HN4A06J
R523 R524
470K 33K C445 R712
2N2-K JUMPER
R527
150
C522
OPEN
R528
1K2(1)
Point A
E4
PAGE 2
AMP B'D 2/2_A1
TO 4E
GND LINE POWER+ LINE POWER- LINE ANALOG AUDIO
R703
1K2 R404
R403
OPEN R405 4.7K(1)
OPEN
D401 C404
OPEN
0.6V 220/50(KR3)
1.1V
R408
Q402 R432 4.7K(1)
OPEN 2K7
C406
Q409
220P-100V(PEF) R418
R420 KTC3964
OPEN
OPEN
R429 33K
3 C409 R422
4
OPEN 470
C410
R433
C411
470/16(KR3)
OPEN
OPEN
R435
R434 3K3(1)
560
R717 R438
-52V
-1.1V
220 220 Q411 Q412 VR401 NVZ6THT(1K)
OPEN KTC3206Y
VR411 OPEN
C435
OPEN
-52.8V Point B
R442
1K2(1) R443
D405 D406
47(1)
JUMPER JUMPER
JP416
-53V
JP518
R704
R445
1K2 R447
R448 4.7K(1)
OPEN
OPEN
D407 C420
OPEN 220/50(KR3)
R451
Q414 R476
4.7K(1)
OPEN 2K7
C422
Q421
220P-100V(PEF) R461
R463
KTC3964
OPEN
OPEN
R473 33K
3 C425 R465
470
4 OPEN
C427
C426
OPEN R477
470/16(KR3)
OPEN
R479
R478 3K3(1)
560
R718 R482
Q424
220 220 Q423 VR402 NVZ6THT(1K)
KTC3206Y
OPEN VR412 OPEN
C499
OPEN
R486
R487
1K2(1) D411 D412
47(1)
JUMPER JUMPER
JP520
JP544
R705
R489
1K2 R491
4.7K(1)
OPEN R492
OPEN
D413 C436
OPEN
220/50(KR3)
R495
Q426 R519 4.7K(1)
OPEN 2K7
C438
Q433
220P-100V(PEF) R505
R507 KTC3964
OPEN
220K
R516 33K
3 C441 R509
470
4 OPEN
C442
C443 R520
470/16(KR3)
OPEN 220K
R522
R521 3K3(1)
560
R719 R525
220 220 Q436
Q435
VR403 NVZ6THT(1K)
KTC3206Y
OPEN
VR413 OPEN
C467
OPEN
R529
R530
1K2(1) D417 D418
47(1)
JUMPER JUMPER
JP468
JP537
Point B
DC mode AC mode
Voltage A
DIGITAL AUDIO TMDS SIGNAL ANALOG VIDEO DIGITAL VIDEO HDMI
7CH_AMP
56V
R406
0V
C401
CP501 DHPTF1608-105T
C402 100N-K
OPEN SC52136-021A
1 2
R411 200K
Q403
Q404 2N5401S
R415 2SD2390 R412 47K
D402 R417
22(1)
1N4148 150K R416 22K
R419 22K
ZD402
OPEN
R423 10K
Q406
Point C1
D403 R424 R425 2N5551S
OPEN R426 R724
0R47(2) 0R47(2)
5K6 OPEN
R430 R431
ZD403 0R47(2) 0R47(2)
Point C2
OPEN
D404
OPEN
FL
R439
Q410 0V
22(1)
2SB1560
C414
OPEN
C415 C416
10/100 10/100
OPEN
JUMPER
R450 C418
CP502
DHPTF1608-105T 100N-K
C417
SC52136-021A
OPEN
1 2
R454 200K
Q415
2N5401S
Q416
R458 2SD2390 R455 47K
22(1) D408 R460
1N4148 R459 22K
150K
R462 22K
ZD405
OPEN
R466 10K
Q418
D409 R467 R468 2N5551S
OPEN R469 R725
0R47(2) 0R47(2)
5K6 OPEN
R474 R475
ZD406 0R47(2) 0R47(2)
OPEN
D410
OPEN
Q422
2SB1560
R483 FR
22(1)
C430
OPEN
C431 C432
OPEN OPEN
OPEN
JUMPER
R494
CP503 DHPTF1608-105T
C433 C434
SC52136-021A 100N-K
OPEN
1 2
Q427
R498 200K 2N5401S
Q428
R502
2SD2390 R499 47K
22(1) D414
R504
1N4148 R503 22K
150K
R506 22K
ZD408
R510
OPEN 10K
Q430
D415 2N5551S
R511 R512
R513 R726
OPEN 0R47(2) 0R47(2)
5K6 OPEN
R517 R518
ZD409 0R47(2) 0R47(2)
OPEN
D416
22(1)
OPEN
R526
C
Q434
2SB1560
C446
OPEN
C447 C448
OPEN OPEN
OPEN
JUMPER
Measurement condition
Point C
・ Voltage measurement
Point C1
No signal
・ Waveform measurement
INPUT: 200mVrms / 1KHz (ANALOG)
Surround mode: MCh Stereo
Point C2
VOL: 70
Speaker load: 8ohms
STBY POWER
26
PAGE 1
C403 R407
10N-K 10K
Q405
2N5401S
R421
22K
CP402
CP402
YMW025-05R
FL
FR
C
SL
SR
TO CN4213
CP403
CP403
SC52137-101A
+HIGHB
+HIGHB
+HIGHB
Q417 R493
-HIGHB
KSA992F 33(1)
-HIGHB
-HIGHB
R551
HIGHGND
100(1)
HIGHGND
HIGHGND
PREGND
C419
100/100
TO CN4212
R734 R733
OPEN OPEN
CN404
R449 OPEN
R464 PRF18BF471QB5RB 75T
CN404
WIRE_7P
R508
THERMALDETE
OPEN
CHASSIS
THERMALDETF
DC_DET3 DC_DET3
DC_DET4 DC_DET4
ASO_DET
ASO_DET
RADI_THERMAL
RADI_THERMAL
TR_THERMAL TR_THERMAL
TO N1019
E3
PAGE 2
AMP B'D 2/2_M1
TO 3E