Schematic Diagrams (7/7); Main Unit - Denon DHT-1312XP Service Manual

1 2
OPTION
R428 R480
10K C412
C423
LEFT FRONT-CH
C
Q427
C454 R435
KTA1268BL R466
10/50V
680 Q428
KTA1268BL
FL
Q431
KTC3200GR
R488 C404
2200P( M)
220
J406
E2/
OPEN
EA/E1C E3
C412
C422
C C414 82PF 100PF
C411
C495
R448 OPTION R478
10K C422
C426
LEFT SURROUND-CH
C
Q441
C456 R434
KTA1268BL
R462
10/50V 680
Q437
KTA1268BL
SL
Q432
KTC3200GR
R486 C406
220 2200P( M)
J404
OPEN
OPTION
R446 R479
10K C414
CENTER-CH C424
C
Q439
C452 R433
KTA1268BL R463
10/50V 680
Q438
KTA1268BL
CEN
Q434
KTC3200GR
R487 C405
2200P( M)
220
J403
OPEN
R440
OPTION R477
10K
C411
RIGHT SURROUND-CH C425
C
Q425
C450 R456 KTA1268BL
R427
10/50V 680 Q440
KTA1268BL
SR
Q430
KTC3200GR
R485 C407
220 2200P( M)
J402
OPEN
R609
10K OPTION
R615
C495
RIGHT FRONT-CH C497
C
Q457
C492 R608
KTA1268BL R614
10/50V 680
Q458
C496
KTA1268BL
220/35V
FR
Q459
KTC3200GR
R612 C494
2200P( M)
220
J409
OPEN
BN45
BN46
FL
5CH DRIVEN( 6ohms) : 23W
AGND
OUTPUT LIMIT CIRCUIT
SL
AGND
CEN
AGND
SR
AGND
FR
AGND
PRE-SUB
AGND
SBR
AGND
SBL
BN42
BN9B
KTA1268BL
PROTECTION
FRONT_RLY
C_SUR_RLY
C_SUR_RLY
HP_RLY
P_DOWN
SB_MUTE
SUB_MUTE
PWR_RLY
LIMIT_DET
LIMIT
MUTE_PWR
NC
GND POWER + POWER -
3
MAIN PART
470K
R549 R548
33P
Q464 R455
5.6K( 1) 5.6K( 1) R495
2SD2390 Q429
R449 KTC3200GR 22K
4R7( 1)
33K ZD51 10K
3.3V
Q465
D419
L401
1SS133
0.5UH
CN51
R530
ZD52
1K
3.3V
2 1
VR41 10( 1)
D418
1SS133
R496
C439
2SB1560
0.047uF( M)
4R7( 1) Q466
PRE_-B
R550 R547
470K
5.6K( 1) 5.6K( 1)
33P
R454
R494 Q467
Q433
2SD2390
KTC3200GR 22K
4R7( 1) R450
ZD53
33K 10K
3.3V
Q461
D423
L403
1SS133
0.5UH
CN52
R528
ZD54
1K
3.3V
VR44 2 1
10( 1)
D415
1SS133
R497
C432
2SB1560
0.047uF( M)
4R7( 1) Q468
470K R552 R551
5.6K( 1) 5.6K( 1)
33P
R453
R498 Q469
Q436
2SD2390
KTC3200GR 22K
4R7( 1) R447
33K ZD55 10K
3.3V
Q475
D409
L402
1SS133
0.5UH
CN53
R515
ZD56
1K
3.3V
VR42 2 1 10( 1)
D425
1SS133
R499
C435
2SB1560
0.047uF( M)
4R7( 1) Q470
470K R554 R553
5.6K( 1) 5.6K( 1)
33P
Q471 R452
R500
Q435
2SD2390
KTC3200GR 22K
4R7( 1) R445
ZD57
33K 10K
3.3V
Q462
D412
L404
1SS133
0.5UH
CN54
R577
ZD58
1K
3.3V
2 1
VR43 10( 1)
D411
1SS133
R501
C434
2SB1560
0.047uF( M)
4R7( 1) Q472
470K R632 R630
5.6K( 1) 5.6K( 1)
33P
Q473 R620
R635
Q460
2SD2390
KTC3200GR 22K
4R7( 1) R622
33K ZD59
10K
3.3V
Q463
D460
L415
1SS133
0.5UH
CN55
R621
ZD60
1K
3.3V
VR45 2 1
10( 1)
D459
1SS133
R634
C502
2SB1560
0.047uF( M)
4R7( 1) Q474
ALL COMPONENTS
OPEN! !
R575
560K
C461
4.7/50V
Q442 Q406
Q443 KTA1268BL KTA1268BL
R417 D403 R414
2.2K 1SS133 560K
Q445
Q404
C401
KTA1268BL
4.7/50V
J619 Q407
Q409
OPEN Q408
KRC102M
Q444
STBY POWER
4 5
FL_OUT
FR_OUT
CEN_OUT
SL_OUT
SR_OUT
DC PROTECTION POWER-FAIL
Q424 Q416 Q414
Q410
Q421
Q423
OVER CURRENT
R563
PRE_-B KTA1268BL
KTA1268BL
Q426
4R7( 1)
R564
Check
C457
100( 1)
100/100V
MUTE_PWR
R536 R533 R534
2.2K( 1) 2.2K( 1) 2.2K( 1)
R537 R535 R559
2.2K( 1) 2.2K( 1) 2.2K( 1)
+ 12V
-12V
R409
KRA102M
Q403
1K
SB_MUTE
R406
KRA102M
Q402
1K
SUB_MUTE
PRE_SB_MUTE
SBR
MUTE CONTROL PART
SBL
PRE-SUB
R605
POWER_ON
4.7K
ZD41
12V
P. DET
P_DOWN
KRC107M
R607 ZD49 D452
Q454
10K 4.7V 1N4007
KTC3199YT
D449
IC45 1N4007
KIA78R05PI
D451
J408
VIN
2 1
FOR ICP 1N4007
D450
4
1N4007
3
D454
D455 1N4007
JUMPER NC43
D453
1N4007
C559
ET41
0.1/50V
CHASSIS
61
6 7
HEADPHONE OUTPUT PART
Q417
HP_RLY
KRC105M
R493
SPEAKER OUTPUT PART
2.2K
Q419
FRONT_RLY
Q411
Q415
KRC105M
HL3-2A-12S
Q420
C_SUR_RLY
R555
47K( 1/4)
KRC105M
HL3-2A-12S
Q412
Q422
R525
Q418
C_SUR_RLY
22K
C408
47/50V KRC105M
HL3-2A-12S
R572
Check
R459
0.1 5W
OPEN
R457 R571
0.1 5W
OPEN
R458
OPEN
J630
OPEN
Wire # 18 BN45_
J631
OPEN
C483
22/50V
C482
22/50V
C481
22/50V
D447
OPEN
NJM7812FA
IC42
3 OUT IN 1
COMMON
R472
2
22K
R471
22K
R451
1
Check
22K
GND
3 OUT IN 2
IC41
NJM7912FA
BK41 D440
C561
OPEN
1/50V
CHASSIS
D439 D438
1N4007 1N4007
R580
Q447 1K
KTA1268BL
R579
R578
OPEN! !
10K 3.3K
Q446
KRC107M
-12V
+ 12V
** IMPORTANT SAFETY NOTICE.
R502 COMPONENTS IDENTIFIED BY MARK SPECIAL CHARACTERISTICS.
120( 1)
IMPORTANT FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS
USE ONLY MANUFACTURER'S SPECIFIED PARTS.
EA : Australia
** THE UNIT OF RESISTANCE IS OHM.
E2 : Europe K=1000 OHM , M=1000 KOHM
** THE UNIT OF CAPACITANCE IS MICROFARAD. ( uF)
E1C : China
D414
pF=10 uF -6
E3 : U.S.A
1SS133 ** THIS SCHEMATIC DIAGRAM MAY MODIFIED AT ANY TIME WITH THE
IMPROVEMENT OF PERFORMANCE.
Europe/China/Asia
R602
Australia
22( 1/4W)
T 3.15A L 250V
Q455
U.S.A
1 2 T 6.3A L 250V
D448
1SS133
4 3
F401
RY43
Q456
G5PA-1 DC6 T 3.15A L 250V
6V, 41.7mA
T401
Live

SCHEMATIC DIAGRAMS (7/7)

SCHEMATIC DIAGRAMS (7/7)
C484
0.022u/50V

MAIN UNIT

CLT5I022ZU
Neutral
MCU POWER SUPPLY PART MAIN UNIT
8
HP_LCH
AGND
HP_RCH
RY44 E2
8 7 6 5
BC3-12H EA/E1C E3 BN44
C433
C436
1 2 3 4
A C440 1500PF 2200PF
C438
C437
C419
C420
0.018uF 0.015uF A
B C429
C430
C431
CJJ5P011Z
1
C420
RY42
B
1 2 3 2
3
C419
B
6 5 4
4
JK45 PUSH TYPE
E3
RY41
SCREW TYPE
1 2 3
E2/E1C/EA
6 5 4
1 1
C429
B
2 2
3 3
C430
B
4 4
RY45
1 2 3 5 5
C431
B
6 6
6 5 4 JK41
C601
JK44
AMP POWER SUPPLY PART OPEN CJJ5R008Z
B
RED
BLACK
BN41
WHITE
R402
1.8K
R403 D401 D402
Q401
KTC3200GR
1K 2V4 1SS133
CRTMM8003
TH41
TEMP. SENSING
( For 100 degree sensing)
22/50V
R599 R593 C471 R584
470 470 220
Q453 Q450
R600 R601
10K 22K
RED
SBR
KTC2874B
KTC2874B
Q452 Q449
C
R597 R589 WHITE
SBL
C466
10K 22K
Silver plate
KTC2874B KTC2874B C470 0.1uF
R590 R583
JK42
D444 OPEN
Surround Back CH
470
R598 22/50V 220
Preout
470
D443
JK43
R596 R588 C469 R582 OPEN
Silver plate
470 470 220 Black
22/50V
C464
SUB WOOFER-CH
R595 R594
0.1uF
10K 22K
D441
Q451 Q448
KTC2874B KTC2874B OPEN
D442
OPEN
CN45
CJP03GI237ZW
S2_IN+
S2_GND
S2_IN-
8VAC
D461 C503
2
8VAC
GBJ606 OPEN
1 4 DGND
D
3 DGND
8VAC
8VAC
N.C
NC42 CN46
CJP07GI237ZW
IC46 L414
KIA278R05PI VGND
OPEN
VIN
1 2 + 5VH
L413
JUMPER + 5VH
4
3 DGND
L412
DGND
JUMPER
+ 5VD
L411
JUMPER + 5VD
DGND
L410
JUMPER DGND
L409
-12V
JUMPER
L408
PRE_GND
JUMPER
PRE_GND
L407
+ 12V
E
JUMPER
L406
MCU+ 5V
JUMPER
L405
MCU_GND
JUMPER
BN43
AUDIO SIGNAL LINE
F