Denon AVR-X2500H Service Manual page 28

SCH20_AMP1
S940H_X2500H AMP SCH
51V
ZD401
ZJ5.1A
R409
150K
Point A
R427 C408 R428
1K2 100/25(ROB) 10
R436
R437
CLAMP400
470K
33K
CLAMP401
CLAMP402
C520
OPEN
CP401
CP401
A2001-WV13_13P_2.0MM
FL
-52V
AGND AGND
SL
Voltage A
AGND
C
AGND
SR
AGND
ZD404
FR
ZJ5.1A
AGND AGND
SBL
AGND
SBR R452
150K
TO CN401
R471 C424
R472
1K2 100/25(ROB)
10
R480 R481
470K 33K
C521
OPEN
ZD407
ZJ5.1A
R496
150K
R514 C440
R515
1K2 100/25(ROB)
10
R523 R524
470K 33K
C522
OPEN
Point A
F4
PAGE 2
AMP B'D 2/2_A1
TO 4F
GND LINE POWER+ LINE POWER- LINE ANALOG AUDIO
51.6V
R703
R401 1K2
R402 R403
1K2
100K OPEN R405
OPEN
Q401
D401
KTA1024Y
0.6V OPEN
1.1V
R410
C527 Q402
JUMPER
OPEN
OPEN
C406
C405
47P-J OPEN R418
R420
OPEN
220K
2
R429 33K
1 3
C409
5 4
OPEN
Q407
C410
HN4A06J R433
470/16(KR3) 220K
R434 3K3(1)
-52V
R717 R438
C413 R710
R440 220 220 Q411 -1.1V Q412
2N2-K 820 JUMPER
OPEN KTC3206Y
C435
OPEN
-52.8V
R441 R442 Point B
1K2(1) 1K2(1) R443
D405 D406
47(1)
JUMPER JUMPER
-53V
R444 R704
R446
1K2 1K2 R447
100K R448
OPEN
OPEN
Q413
D407
KTA1024Y
OPEN
R453
C528 Q414
JUMPER
OPEN
OPEN
C422
C421
47P-J OPEN R461
R463
OPEN
220K
2
R473 33K
1 3
C425
5 4
Q408 OPEN
C426
HN4A06J
R477
470/16(KR3)
220K
R478 3K3(1)
R718 R482
C429 R711 Q424
R484 220 220 Q423
KTC3206Y
2N2-K 820 JUMPER
OPEN
C499
OPEN
R485 R486
R487
1K2(1) 1K2(1) D411 D412
47(1)
JUMPER JUMPER
R705
R488 1K2 R491
R490
1K2
100K OPEN R492
OPEN
Q425
D413
KTA1024Y
OPEN
R497
C529
Q426
JUMPER
OPEN
OPEN
C438
C437
47P-J OPEN R505
R507
OPEN
220K
2
R516 33K
1 3
C441
5 4 OPEN
Q419
C442
HN4A06J R520
470/16(KR3)
220K
R521 3K3(1)
R719 R525
C445 R712 220 220 Q436
R527 Q435
2N2-K 820 JUMPER KTC3206Y
OPEN
C467
OPEN
R528 R529
R530
1K2(1) 1K2(1) D417 D418
47(1)
JUMPER JUMPER
Point B
DC mode
Voltage A
DIGITAL AUDIO TMDS SIGNAL ANALOG VIDEO DIGITAL VIDEO
7CH_AMP
56V
0V
R404
R406
4.7K(1)
C401
CP501 DHPTF1608 471P
C402 100N-K
A2001-WR02_2P_2.0MM
C404 OPEN
220/50(KR3)
1 2 R411 200K
R408
Q404
R432 4.7K(1)
R415 2SD2390
D402
2K7 22(1)
1N4148
Q409
ZD402 150K
KTC3964 OPEN
R423 R417 10K
D403 R424 R425
OPEN Point C1 R426 R724
0R47(2) 0R47(2)
5K6 OPEN
R422
Point C2
470
R430 R431
ZD403
0R47(2) 0R47(2)
OPEN
R435
D404
560 OPEN
0V
R439
VR401 NVZ6THT-1K Q410
VR411 OPEN 22(1)
2SB1560
C414
OPEN
C415 C416
10/100 10/100
JP416 OPEN
JP518 JUMPER
R445
4.7K(1) R450 C418
CP502 DHPTF1608 471P 100N-K
C417
C420 OPEN A2001-WR02_2P_2.0MM
220/50(KR3)
1 2 R454 200K
R451
Q416
R476
4.7K(1) R458 2SD2390
2K7 22(1) D408 R460
1N4148
150K
Q421
ZD405
KTC3964 OPEN
R466 10K
D409 R467 R468
OPEN R469 R725
0R47(2) 0R47(2)
5K6 OPEN
R465
470
R474 R475
ZD406 0R47(2) 0R47(2)
OPEN
R479
560 D410
OPEN
Q422
2SB1560
VR402 NVZ6THT-1K R483
VR412 OPEN 22(1)
C430
OPEN
C431 C432
10/100 10/100
JP520 OPEN
JP544 JUMPER
R489
4.7K(1) R494
CP503 DHPTF1608 471P
C433 C434
C436 A2001-WR02_2P_2.0MM 100N-K
OPEN
220/50(KR3)
1 2
R495
R498 200K
Q428
R519 4.7K(1) R502
2SD2390
2K7 22(1) D414
R504
1N4148
150K
Q433
ZD408
R510
KTC3964
OPEN 10K
D415
R511 R512
R513 R726
OPEN 0R47(2) 0R47(2)
5K6 OPEN
R509
470
R518
R517
ZD409 0R47(2)
0R47(2)
OPEN
R522
D416
560 22(1)
OPEN
R526
VR403 NVZ6THT-1K Q434
VR413 OPEN 2SB1560
C446
OPEN
C448
C447
10/100 10/100
JP468 OPEN
JP537 JUMPER
Point C
Measurement condition
AC mode ・ Voltage measurement
Point C1
No signal
・ Waveform measurement
INPUT: 200mVrms / 1KHz (ANALOG)
Surround mode: MCh Stereo
Point C2
VOL: 70
Speaker load: 8ohms
HDMI STBY POWER
28
C403 R407
10N-K 10K
Q403
KST5401MTF
R412 47K
R416 22K Q405
KST5401MTF
R419 22K
R421
Q406
22K
KST5551MTF
FL
FR
FL
C
SL
SR
Q417 R493
KSA992F 33(1)
R551
100(1)
Q415
KST5401MTF
R455 47K
C419
R459 22K 100/100
R462 22K
Q418
R449 OPEN
KST5551MTF
R464 PRF18BF471QB5RB 75T
R508
OPEN
FR
Q427
KST5401MTF
R499 47K
R503 22K
R506 22K
Q430
KST5551MTF
C
F5
TO 5F
PAGE 1
CP402
CP402
A2505-WV05_5P_2.5MM
TO CN4213
CP403
CP403
A2001-WV10_10P_2.0MM
+HIGHB
+HIGHB
+HIGHB
-HIGHB
-HIGHB
-HIGHB
HIGHGND
HIGHGND
HIGHGND
PREGND
R734 R733 TO CN4212
OPEN OPEN
CN404
CN404
WIRE_6P_2.0MM
CHASSIS
THERMALDETE
DC_DET3 DC_DET3
DC_DET4 DC_DET4
ASO_DET ASO_DET
RADI_THERMAL
RADI_THERMAL
TR_THERMAL
TR_THERMAL
TO N1019
PAGE 2
AMP B'D 2/2_M1