Sharp 1-BIT AMPLIFIER SM-SX1 Service Manual page 17

TROLL
44 43 42 41 40 39 38 37 36 35 34
1
DI
2
DI
3
BCKI
4
BCKI
IC801
5 LRCI
SM5844AF
6 ICLK
SAMPLING RATE
7 ICKSL
CONVERTER
NC 8 IFM1
NC 9 IFM1
10 IFM2
11 IFM2
C833
12 13 14 15 16 17 18 19 20 21 22
0.1
C834
47/10
L808
R827
1k
IC802:INVERTER
VDD
1 8
2 7
3 6
4 GND 5
IC802
TC7W04F
C830
0.1
L+
14 13 12 11 10
1 2 3 4
R838
1K
L–
L810
CK
R–
10 9 8
3 11 14 13 12 11 10
3 4 5 6 7 1 2 3
R+
C809:WAVEFORM RECTIFICATION
7
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33
VSS
32
VSS
D800
31
RSTN
DAN202K
RSTN 30
R845
TST2N 29 NC
10k
NC
TST1N 28
STATE NC
27
C840
4.7/25
IISN 26
IISN 25
OW20N 24
OW20N 23
L806
4
NC
2
7
NC
9
R839
RLY802
1K
9 8
4
2
C841
NC
2.2 7
9
C842
NC
2.2
5 6 7
RLY801
R848
47K
C843
2.2
4
2
C844
NC
2.2
7
9
9 8
NC
RLY800
4 5 6 7
R850
4.7K
8 9
Figure 17 SCHEMATIC DIAGRAM (4/10)
DIGITAL PWB-A2
TP10
R861
R860
15K
15K
D802
DAN202K
3
8
R853
4.7K
R854
100K
D803
DAN202K
3
L+
R856
18K
8
L–
R857
18K
3
R–
R858
18K
8
R+
R859
18K
R851
1K
R852
100K
10
– 17 –
SM-SX1/SX1W
BI801
CNS102
64fs
6 5
GND
5
4
CNP102
TO INPUT
SACD R
4 3
SOURCE PWB
TP6
GND
P20 5-G
3
2
GND
2
TP9
SACD L
1 1
TP8
CNP801
TP11
16 +24V
TP12
Protect
15
TP13
14 Protect +B
TP14
GND( µ-COM)
13
TP15
Dig/Ana RLY
12
TP16
12V(RLY)
11
TP17
5V(D)
10
TP18
9 DR+
CNS801
TP19
8 DR–
TP20
FROM
GND(D)
7
MAIN PWB
GND(D)
6 P14 1-F
DL–
5
TP22
DL+
4
TP23
A.GND
3
TP24
2 A–10V
TP25
A+10V
1
TP26
CNP800
A+10V
1
TP27
2 A-10V
TP28
3 A-L-ch
TP29
4 A.GND
5 A.GND
6 A-R-ch
TP31
7 Protect +B
CNS800
8 12V(RLY)
TP33
9 5V(D) FROM
TP34
INPUT SOURCE PWB
GND(D)
10
P20 4-G
TP35
DDIN
11
TP36
Protect
12
+24V
13
TP38
11 12