Vol_Cl - Sharp SD-AT1000 Service Manual

SD-AT1000
A
C15
100P(CH)
C14 L01
2.2 µH
100P
(CH)
LUG3
HEADPHONES PWB-A3
B
C
RIN
3
LIN
4
ROUT1
5
LOUT1
6
ROUT2
7
LOUT2
8
ROUT3
9
LOUT3
10
A_GND
12
D
D_+5V +B
13
PROTECT
1
E
27
L_MUTE
27
W_S_MUTE
26
F_S_MUTE
25
C_S_MUTE
24
S_S_MUTE
23
S_MUTE
22
FUN_LOCK
21
PROTECT
20
+B_CHECK
19
18
17
A/D_RESET
16
OFFSETPROTECT
15
CCB_CE
14
CCB_DO
13
CCB_CL
12
CCB_DI
11
P_CONT_LEVEL
10
H.P_SW
9
VOL_DA
8

VOL_CL

7
BASS_SW
6
F
CONFIG
5
9V
4
D_+5V
3
GND(U-COM)
2
UCON5V
1
CNP501
1
FFC701
+B
DGND
2
A_+9V
11
G
PROTECT
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 11.
1
R-CH
1
R_CH
1 1
A_GND
A_GND
3 2 2
L_CH
L-CH
4 3 3
D_GND D_GND
5 4 4
H.P SW H.P SW
6 5 5
3 2
CONFIG
Q528
KRC107 S
1
C526
2.2/50
C525
2.2/50 R508
100K
C528
2.2/50
R512 220
R511 220
C527 R514
R513 C534
2.2/50
100K
100K 0.015
C530 R516 220
2.2/50
R515 220
C529 R518
R517
C536
2.2/50 100K 100K
0.015
C532
2.2/50
R520 220
R519 220
C531 R522 R521
C538
2.2/50 100K 100K
0.015
+B
+B
A_+9V
+B
+B
A_+9V
+B
+B
2
Figure 30 SCHEMATIC DIAGRAM (1/11)
JT501
LINE1 INPUT/
OUTPUT TERMINAL
D501
DS1SS133
D502
DS1SS133
Q501
KRA107 S
R649
100K -B
3 2
1
Q502
KRA107 S
R648
100K
-B
3 2
R510
1
1.8K
R509
1.8K
R507
100K
+B
C512
0.015
C533
0.015
-B
C535
0.015
SW
CENTER
C537
0.015
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
IN2MIX
25 IN DSPSR
26
IN DSPSL
27 INDSPC
28 IN DSPSW
29 AGND1
30
C501 GOUTSW
10/16
31 VINSW
IC501
32 AGND2
BD3811K1
33 GOUTC
C502
10/16
34 VOLUME IC
VINC
35 OUTSW
36 OUTC
37 OUTSL
38 OUTSR
39 VINSL
C503
10/16
40 GOUTSL
AGND3
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
C504
10/16
R504
D537
4.7K
DS1SS133
D538
C517~C520: 0.082
DS1SS133
C664
C183
100P
0.001
(CH)
+B
3 4
– 30 –
R632
R536 R535 R639 R636 R635
R640
18K 18K 6.8K 6.8K 6.8K
6.8K
6.8K C651
1/50 C646
C658 C655 C652 C648
C656 C654
1/50
47P(CH) 1/50 1/50 47P(CH)
1/50 47P(CH)
C657 C653
47P(CH) 47P
C662 C661
(CH)
47P 47P
R642 R641 R634 R633
R638 R637
(CH) (CH) 18K 18K 18K
18K 18K
C673
R671 C671 R679
100P
10/16
100
(CH)
+B
5 6 7 8
–
+
+
–
C672
4 3 2 1 R680
10/16
R672
100
-B
R684
180
+B
+B
+B
5 4 3 2 1
IN31
IN22
80
IN21
79
TUN_R
IN12 78
TUN_L
IN11
77
ROUT32
76
ROUT31
75
ROUT22
74
ROUT21 73
ROUT12
72
ROUT11
71
AGND10
70
GOUT2
69
C524
10/16
VIN2 68
AGND9
67
GOUT1
66
C523
+B
VIN1
65 10/16
TNF2
R561
1K
+B
+B
R562
1K
5
JT502
LINE2/LINE3
INPUT TERMINAL
C171
0.0022
R631
6.8K
C645
1/50
C647
47P(CH)
18K
L_M
R565
100K
Q5
2S
R566
10K
Q531
R563
KTC2875 B
2.2K
R564
2.2K
Q532
KTC2875 B
C677
1K 10/16 MON_OUTL
R627
R683
+B
180 150 +B
+12V +12V
C678
10/16
1K
C665
220/16
R669
15K
C641
–12V
0.022 R587
-B
82K
C63
C637 100/1
R585
33P
10K
(CH)
+B
C633
5 6 7 8
R583
10/16
100K –
+
– +
R584
C634 100K
4 3 2 1
10/16
-B
R586
Q503
10K
2SK208
C642
R588 C64
82K 100/1
0.022
R670
C666
15K
220/16
R626
150
Q599
KTC2875
Q598
KTC287
+B
-B -B
OUTSR_LCH
A_GND
OUTSR_RCH
OUTC
OUTSW
6