Sharp HT-CN300 Service Manual page 23

23
2
5
856 R859
C854
K 1K
0.022
C839
H)
IN2P VPP 100P
5 4
IN1P
6 IN2N 3 (CH)
OUT2 IN1N
7 2
8 VDD OUT1 1
C843
R825
0.022
560
R824
100K NJM4580M
OPE AMP.
R823
100K
–B
+B
+B
–B
13
41M
DIO
SSOR
R793
C930
R867
0.0027
R894
3.9K
3.9K
C932
C922
C934
R872 R938
10/16
10/16
220 0.1
220
C935
0P(CH)
10/16
0P(CH)
C818
0.022
0P(CH)
R789 C947
R729
330 0.022
330
7
C825
270P(CH)
20 AGND
[1]
C759
270P(CH)
C838
270P(CH)
C742
270P(CH)
22
C823
270P(CH)
C824
270P(CH)
C953
R971
10/16
100K
R973
220
OUT1
1
2 IN1N
3 IN1P
VPP
4
C960
0.022
R977
12K
IC715
C964
560P
R978
(CH)
33K
–B
IC720
LC75341M
AUDIO
PROCESSOR
R768 R775
1K 1K
13 R1 AUX IN L1 12
14 R2 VCR2 IN L2 11
15 R3 VCR1 IN L3 10
R4 L4
16 TUNER IN 9
RSEL LSELO
17 8
R820
1K
18 RIN LIN 7
1K
19 RTRE LTRE 6
C931 C941
0.1 0.1
LBASS
20 RBASS 5
C942
ROUT LOUT
21 4
0.1
VSB
22 VREF 3
C944
23 VDD CE 2
C945
24 CLK DI 1
C946
+B
SL_OUT
SR_OUT
C_OUT
SW_OUT
8
Figure 23 SCHEMATIC DIAGRAM (10/17)
UNSW5V 2
[1,2]
[1,2] DGND 6
3.3V 5
[1,2]
[1,2] SW5V 1
[2] VF2 30
31
[2] VF1
21
VP 32
[2]
[2,3] PROTECT 47
C954
R972
10/16
100K
R974
220
C955
0.022
+B
IC718
VDD
8
OUT2 7
NJM4580M
IN2N 6
IN2P
5
OPE AMP.
R982
12K
C965
560P(CH)
R979
33K
AGND_A 29
[1,2]
+B
VCR1_REC_L
AGND
VCR1_REC_R
C864 1/50
C861 1/50 L731
C873 1/50
L732
C862 1/50
L733
C874 1/50
L734
C863 1/50
L735
C875 1/50
L736
C876 1/50
L737
L738
[2]
L_MUTE 38
C940
0.0027
R884
3.9K
C943
R887
10/16
220
FL_OUT
100P(CH)
100P(CH)
100P(CH)
+B
FR_OUT
9 10
– 23 –
+B
DGND_FL
R828
1K
R827
1K
R799
1K
+B
L901
Q704
2.2µH
2SD1898
+B
1 2
1 2
3
3
C732 C814
R814
0.022 0.022
220
C720
100/16
C813
3
0.022
–B 1
2
L903
2.2µH
TUNER_L
49 TUN_L
[2]
TUNER_R
51 [2]
TUN_R
CNP710
1
AUX_R
GND_AUDIO
3
AUX_L
GND_AUDIO
5
VIDEO2_R
GND_AUDIO
7
VIDEO2_L
GND_AUDIO
9
VIDEO1_R
GND_AUDIO
11
VIDEO1_L
GND_AUDIO
13
REC_R
GND_AUDIO
15
REC_L
GND_AUDIO
17
L_MUTE
+B
CNP711
1
FL_PRIOUT
2
A_GND
3
FR_PRIOUT
4
SR_PRIOUT
5
A_GND
6
SL_PRIOUT
7
C_PRIOUT
8
A_GND
9
SW_PRIOUT
10
A_GND
11
F_RLY
12
S_RLY 41
13
C_RLY
14
W_RLY 42
15
-20DBATT
16
45
FAN_CONT
17
THERMO
18
PROTECT 47
19
POW_LEV
46
48
44
40
39
11
HT-CN300
CNP713
1
VF2 D
2
VF1 D
3
-VP D
4
A_GND1 A
5
CNS102
-9V A
6
UNSW_5V D
7
FROM
D_GND_FL D
8
AMP. PWB
D_GND_DSP D
9
+9V A P24 1 - G
10
+3.3V1 D
11
+3.3V2 D
12
SW_5V A & D
–B
L741
FW10
2
4
6
8
10 CNP550
TO
12
AUDIO PWB
P30 1 - C
14
16
FW12
CNP122
[2]
S_RLY
TO
W_RLY [2] AMP. PWB
P14 1 - G
FANCNT [2]
[2,3]
PROTECT
POWLEV [2]
THERMO [2]
[2]
ATT20DB
C_RLY [2]
[2]
F_RLY
12