Sharp SD-AT1000 Service Manual page 31

L_MUTE
R565
100K
Q533
2SB709 AR
R566
10K
Q531
R563
KTC2875 B
2.2K
R564
2.2K
Q532
KTC2875 B
R627
150 +B
+12V
C665
220/16
S_MUTE
R669 R595
R596
15K 100K
10K
C641
Q516
0.022 R587
R647 2SB709 AR
82K 82
L_CH
C639
C637 100/16
R585
33P
10K Q517
(CH)
R591
KTC2875 B
82
C633
5 6 7 8 R593
R583
10/16
100K R597
100K –
2.2K A_GND
+
– +
R598
R584 R594
2.2K
C634 100K 100K
4 3 2 1
10/16
R592
82
Q518
R586
KTC2875 B
Q503
10K
2SK208 R_CH
C642
R588 C640 R590
82
82K
100/16
0.022
R670
C666 15K
IC505
220/16 BUFFER AMP.
R626
150
Q599
KTC2875 B
R531
2.2K
R532
2.2K
Q598
KTC2875 B
-B
+B
UTSR_LCH
_GND
UTSR_RCH
UTC
UTSW
+B
7
LINE2 SIGNAL
FM SIGNAL
LINE3 SIGNAL
LINE1 SIGNAL
R411 C413
2.2K 10/16
FRONT_LCH
R415
100K
R416
100K
C414
R412
10/16
FRONT_RCH 2.2K
OUTSR_LCH
R431 C425
3.3K
10/16
R435
100K
A_GND
R436
100K
R432 C426
3.3K 10/16
OUTSR_RCH
C437
R451
10/16
OUTC 3.3K
R455
100K
C459
R452 R473
22/16
1.5K 3.3K
OUTSW
R492
1.5K
Q428
KRC102 S
3 2
2
BASS_SW 1 1
R493
1M
3
A_–7V
A_+7V
Q525
KTC4375 Y
+B
ZD502
+-15V_AGND
DZ8.2BSA
ZD503
DZ8.2BSA
Q526
KTA1273 Y
+B
-B
R612
+B
R690
+B
+12V +12V(A)
D516
DS1SS133
R616 R615
R613
1K 470K
47K
D514
R614
DS1SS133 47K
–12V
–12V(A)
-B
D_+5V
+B
D_+5V
+B
GND(U-COM)
D507
DS1SS133
R621
1K
R619
1K
D509
DS1SS133
8
Figure 31 SCHEMATIC DIAGRAM (2/11)
R417
C417
R421 R543
22K 10/16 3.9K 8.2K
C415
R423
33P
C419 3.3K
(CH)
0.022
R419 3 2 1
4.7K
+B
–
8
+
VDD
Q512
+ VSS -B
4 KRA107 S
–
5 6 7 3
C420
0.022 R424
C416
1
3.3K
33P C418 R422
10/16
(CH) 3.9K
R418
R420
22K
4.7K
R437 C429 R441
22K 10/16 3.9K
C427
R443
33P
C431 3.3K
(CH)
0.022
3 2 1
–
+B
8
+
VDD Q523
KRA107 S
VSS
+
4 -B
–
5 6 7 3
C432
R444
0.022
1
C428 3.3K
C430
33P
10/16
(CH)
R438 R442
R440
22K 3.9K
4.7K
C441
R457 R461
10/16
22K 3.9K
Q536
C439 KRA107 S
33P R463
C447
3.3K
(CH)
0.022
3
3 2 1
R459
4.7K 1
–
+B
8
+
VDD
Q538
+ VSS
KRA107 S
4 -B
–
5 6 7
3
C448
R464
0.022
1
R460 6.8K
C440 C442
R462
18K 0.001 100/16
1K
W_S_MUTE
R409 R410
R538
22K 10K
8.2K
D S
C446
0.1
R414
Q459
3.9K
CPH3418
G R413
R428 820
5.6K D419
DS1SS133
C460 R427
R433
3.3/50 100K 1.5K
+B
-B
+B
R605
R604
+B 47K
47K
C587
C539 ZD403
0.022
47/16 DZ8.2BSC
R606
470K
ZD402 C540
Q527
DZ8.2BSC 47/16
2SD601 AR
R541
150
A_–7V +B
+B
C451
47/25
C450
47/25
+B
47(1/2W)
-B
47(1/2W)
+B
+15V(A)
R689
C601
C595
10
100/16
47/16
(1/2W)
C598 C596
100/16 47/16 +B
R611
33
(1/2W)
–15V(A) -B
D_+5V
+B
DGND
+B
+B
VOLTAGE
+B
REGULATOR
IC513
KIA7809AP
+B 3
2
C630
0.047
+B
9 10
– 31 –
ZD557 ZD558
DZ6.2BSC DZ6.2BSC
Q513
R425 2SD601 AR
3.3K
R426
ZD559 ZD560
3.3K
Q515
DZ6.2BSC DZ6.2BSC
2SD601 AR
2
F_S_MUTE
R502
8.2K
R503
8.2K
ZD561 ZD562
R445
DZ6.2BSC DZ6.2BSC
3.3K
Q524
2SD601 AR
R446
3.3K ZD563 ZD564
Q535
DZ6.2BSC DZ6.2BSC
2SD601 AR
2
S_S_MUTE
R506
8.2K
R523
8.2K
R465
ZD565
3.3K ZD566
Q537
DZ6.2BSC DZ6.2BSC
2SD601 AR
2
C_S_MUTE
R466
ZD567
3.3K ZD568
Q539
DZ6.2BSC
DZ6.2BSC
2SD601 AR
2
C699
R560
10/16
2.7K
Q544
C608
R568
2SD601 AR
100/10
150
R571
C621 R572
R661 470
10/16 10K
100K
R573
220K
C562 R554 R629
R552
0.022
22K 27K 3.3K
C625
100P
5 6 7 (CH) R630
2.2K
–
8
+
VDD
C602
C603
22/16
22/16
VSS
+
4 –
IC506
R550
1K
TJM4558CD
3 2 1
C597
OPE AMP.
0.022
+B
D581
DS1SS133
D582
DS1SS133
R653
470K
A_+12V
+B
P_CONT_LEVEL
+B
3 Q403
2SD601 AR
1
2
R400
2.2K
VOLTAGE
REGULATOR
IC507
KIA7805AP
D_+5V M_+12V
3 1
+B
R402
2
4.7
C606 C605
Posistor
0.047 0.022
FAN_LOCK
+15V(A)
1 +B
C629
C628
0.022
1/50
R609
1.2K
TUN_L
TUN_R
R610
1.2K
11
SD-AT1000
MAIN PWB-A1 (1/2)
FRONT L-CH
1 1
L401 FRONT GND
2 2
FRONT R-CH
3 3
SURROUND L-CH
7 7
SURROUND
L402 GND
5 5
SURROUND R-CH
9 9
CENTER
4 4
GND
8 8
L403
SUB
WOOFER
6 6
R574
2.7K
R578 R581
220K 10K
Q545
2SD601 AR
PROTECT
10 10
A/D_RESET
11 11
OFFSET PROTECT
12 12
SUBWOOFER
WOOFER_OUT
OUT
SO501
Q542
KRA106 S
2 3
Q543
1
2SD601 AR
R655
10K
D583
DS1SS133
R656 R657
47K 33K
R654
R658
33K 47K
+B
A_GND
A_–12V
-B
UCON_GND
1
UCON_+5V
2
PROTECT
3
+B_CHECK
4
LIMIT
5
FAN_CONT
6
A+15V
7
GND_A
8
A-15V
9
M_+12V
10
M_GND
11
D2_GND
12
GND
13
C401
22/16
R401
100K
Q400
2SB709 AR
D400
DS1SS133
R404
Q401
1K
2SC5565
M501
R405 1 1
FAN MOTOR
ZD401 C402
220
10/16
DZ7.5BSB
M
2 2
C404 R407 C405
0.01 10K 0.01
1
3 3
2 3
D401
Q402 DS1SS133
R406
KRC104 S
10K
1
CCB_CE CE
1
CCB_DI DI
2
CCB_CL
CL
3
CCB_DO
DO
4
GND
5
L OUT
6
VCC +9V
7
R OUT
8
9
10
GND
11
CNP506 11
FFC703
12