Sharp HT-DD5000W Service Manual page 23

HT-DD5000W
A
DISPLAY PWB-D1
B
C
21
21
20
19
18
17
D
16
15
14
13
12
11
10
9
8
E
7
6
5
4
3
2
1
F
FC1 1
CNS1A
G
P21 11- H
3 3
CNP5
2 2
TO HEADPHONES
1 1
PWB
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 38.
1
D_SEL
DEM0
DEM1
DAPD
ADPD
AC3_RES
AC3_SS
AC3_SI
D_GND
AC3_SCK
SW_ON
V_SW1
V_SW2
V_MUTE
TUN_DO
TUN_DI
TUN_CK
TUN_CE
TUN_MUTE
TUN_SD
TUN_ST
2
Figure 22 SCHEMATIC DIAGRAM (7/12)
1 2 3 4 8 9
5 6 7
R46
1K
R48
1K
R50
1K
R55
1K
R172
1K
3 4
– 22 –
FL1
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
P12
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
–20V
76
P13
–13V
77
P14
–19V
78 P15
–19V
79 P16
80
81
82
83
R44
0V 84
DAPD
1K
4.7V
85
ADPD
R45
4.7V
86
AC3_RES
1K
4.4V
87 AC3_SS
R47
0V
88
AC3_SI
1K
4.7V
89
D_SEL
R49
0V
90 AC3_SCK
MICROCOMPUTER
1K
0V
91
SW_ON
92
PRO_ENA
99
DEM1
93
PRO_DI
R54
94
4.7V PRO_CK
100
1K VPP
4.7V
95 V_SW1
4.7V
96 V_SW2
R56
4.7V
97
V_MUTE
1K
0V
98 DEM0
R173
–32V
99
1K
–38V
100
1 2 3 4 10
5 6 7 8 9
R1
1K
R2
1K
R3
1K
R4
1K
R43
C1
1K 0.022
R5
1K
R6
1K
L1
100µH
C5
1000/6.3
C7 C8
1/50
1/50
5
25 26 27 28 29 30 31 32 33 34 35 36
37
SW
HP
P
F
SW
C
R
IC1
F
IX0004SJ
JOG
SYSTEM
J
RE
A
SY
24 VREF+
25
ALC
V
F
11 12 13 19 20 21 22
14 15 16 17 18 23
C3 C4
C2
22P 22P
0.022
(CH) (CH)
C9
1/50
6