Sharp HT-DP2500W Service Manual page 20

HT-DP2500W
DISPLAY PWB-C1
A
B
C
D
E 23
PRO_ENA
2 3
PRO_DI
2 2
PRO_CK
2 1
V_MUTE
2 0
TUN_DO
1 9
TUN_DI
1 8
TUN_CK
1 7
TUN_CE
6 1
TUN_MUTE
1 5
TUN_SD
4 1
TUN_ST
F 1 3
SP_LEVEL
1 2
POSISTOR
1 1
V_LATCH
1 0
V_CK
9
V_DATA
8
F_MUTE
7
R_MUTE
6
C_MUTE
5
SW_MUTE
4
SPSWA
3
PROTECT
G
2
FUN_SW
1
1
CNP1A
FC1
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 9.
1
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1 2 3 4
5
R52
1K
VCR-1,STANDBY:( )
Q5
KRA102 M
2 5V(0V)
3
1
2 3
Figure 16 SCHEMATIC DIAGRAM (5/7)
FL1
FL DISPLAY
6 8 9 1 0 11 12 13 14 15 16 17 18 19
7
–32.6V
75 74 73 7 2 7 1 70 69 68 67 66 65 64 6 3 6 2 1 6 6 0 59 58 57 56 55 54 53 52 51
–28.8V
76
–28.8V
77 P14 76
P13
–32.6V
78 P15
–32.6V
7 9 P16
8 0 NC
8 1
NC
82 NC
83 NC
84
NC(DAPD)
85
NC(ADPD)
86 NC(AC3_RES)
87 NC(AC3_SS)
NC(AC3_SI)
88
SYSTEM MICROCOMPUTER
NC(D_SEL)
89
NC(AC3_SCK)
90
R51 NC(SW_ON)
91
1K
4.8V
PRO_ENA
92
0V
PRO_DI
93
4.8V
PRO_CK
94
99 NC(DEM1)
R53
V_SW1
95
100 NC(VPP)
1K
V_SW2
96
4.8V
V_MUTE
97
R56
DEM0
98
1K
99
-33V
100
1 2 3 4
5 6 7
R1
1K
R2
1K
R3
1K
R4
1K
R43
1K
R5
1K
R6
1K
R74
47K
C7
1/50
4
– 16 –
2 0 2 1 2 2 2 3 24 25 26 27 28 29 30 31 32 33
50
NC(SPSWB)
IC1
IX0001SJ
28 FS_DATA
27 NC(FS_STB)
RESET
26
8 9 10 11 12 13 14 15 16 17 18 19 20 21
C1
0.022
L1
100µH
KEY2
KEY1
R58
R65
10K
10K
C8
C9
1/50
1/50
5 6
34 35 36 37
0.8V(–2.1V
P
SPSWA
NC(SW_RLAY
NC(C_RLAY)
NC(R_RLAY)
NC
POW_SW
FA_RLAY
SW_MUTE
C_MUTE
R_MUTE
F_MUTE
JOG_DOWN
JOG_UP
REMOCON
AC3_SO
SYS_STOP
POWER
V_DATA
V_CK
V_LATCH
NC(FS_CK)
22 23 24 25
0
R
1
C2
0.022