Sharp HT-CN300 Service Manual page 19

+B
Q702
KRC107 S
KDS160
2 3
1
1
VIN
2
VC
6
3
VO2
VO1
4
NC
5
C784
GND
47/16
IC705
PQ025EZ
VOLTAGE
EGULATOR
R758
330
C731
C705
0.1
C755
68P
(CH)
R725
330
R724
330
AUDATA1
AUDATA0
39
SCCLK AUDATA2
38
D7 DC
37
IC706
D6 DD
36 C761
D5 RESETB
35
CS493292
D4 AGND
34
VD2 VA
DSP
33
DGND2 FILT1
32
D3 FILT2
31
D2 CLESEL
30
D1 CLKIN
29
D0
LRCLKN2
SCLKN2
R785
330
R784 330
R783 330
R787 330
R788 330
C701
C708
0.1
22/16
C711
22P
(CH)
7
Q721
D704
KRA107 S
1
2
3 +B
2
3
Q701
D705
1
KRA107 S
KDS160
R895
47K
R851
100K
L712
0.1
C717
22/16
R720
330
L713
22P(CH)
C716
GND
0.1
C715
2.2/50
R719 C710
R728
47
33K 0.01
C709
470P
L711
2.2µH
+B
C714 10/16
+B
C713 0.1
5 4
2Y GND R759
6 3
3A 2A 330
7 2
1Y 3Y
8 1
VCC 1A
IC707
TC7WU04U
R955 1M
DUAL2-INPUT
NAND GATE
C712
X701
22P
12.288 MHz
(CH)
8
Figure 19 SCHEMATIC DIAGRAM (6/17)
CHGN3
R740
SHILD PLATE
47K
C724
0.022
5 2Y 4
GND
R746
6 3A 3
2A
100K
7 1Y 2
3Y
8 VCC 1
1A
R738 C820
33K
0.022
R733
330
9 8
2Y GND
10 7
2I0 1Y
11 6
2I1 1I0
12 5
2I2 1I1
13 4
2I3 1I2
14 3
S0 1I3
15 2
/2E S1
16 1
VCC /1E
IC722
74HC153F
+B
C741
47/16
L708
R760
C743
0.022
C728
0.1
AGND
C753
0.1
R742
10K
R743
10K
+B
R815 C745
1 XT0
470 0.1
2 XT1/EXTCLK
3 DVDD
4 DVSS
R750 5 TVDD AK4586VQ
C846 6 TX
100
68P
7 MCK0
(CH) R749 330 8 LRCK
9 BICK
10 SDT0
R748
C858
11 SDTI1
330
68P
(CH)
R747
C746
330
0.1
R753
330
C747
47/10
R756
R754
330
330
AGND
9 10
– 19 –
[1,2,3] DGND
[1,3] AGND
6
CHGN1
L722
R730 C726
2.2µH
330 0.01
3
C727
R752
100P
82
(CH) 1 2
L721
2.2µH
C721
R731
0.022
47K
R751
470
IC708
470
AK4586VQ
ADC/DAC/DIR
CONVERTER
C751
47/10
R755
4.7
33
RIN
32
LIN
R761
31
IC708
ROUT1
30 R762
LOUT1
R763
29
ROUT2
28 R764
LOUT2
R765
27
ROUT3
26 R767
LOUT3
25
DZF1
24
VCOM
23
VREFM
C748
L710 47/10
FM SIGNAL
11
HT-CN300
20
CHGN2
CON707
DVD GIGITAL IN
DIG2 JACK
C840
C762
68P(CH)
0.001
D702
KDS160
1 VCC
DIG1
2 GND OPTCAL
3 VOUT
IC709
GP1FA550R
DIGITAL IN
DSP_AUDIOIN_R
21 [3]
22 DSP_AUDIOIN_L [3]
100
DSP_FROUT [3]
23
100
[3]
DSP_FLOUT
24
100
DSP_SROUT [3]
25
100
[3]
DSP_SLOUT
26
100
DSP_SWOUT [3]
27
100
DSP_COUT [3]
28
L707
+B
[1,2,3]
1 SW5V
C719
100/6.3
[1,3]
AGND
20
C758
68P
(CH)
AGND_A [2,3]
29
12