Scaler Schematic Diagram - Sharp LC-20AD5E-BK Service Manual

A B
8
FROM/TO REGULATOR
AT+3.3V
AT+3.3V
B802
S_3.3FE
C813
HCB1608KF-181T20 GND
10 C
B803
S_3.3VO
HCB1608KF-181T20
B804
S_3.3IO3
POWER_FAIL
B805
HCB1608KF-181T20 S_3.3IO1
B806
HCB1608KF-181T20 S_3.3COM
B807
HCB1608KF-181T20 S_3.3DAC
B808
HCB1608KF-181T20
S_3.3DIG
7
B809 AT+3.3V
HCB1608KF-181T20 S_3.3RAM
C806 GND
HCB1608KF-181T20
6.3V 220 V-S
B810
S_3.3FL
HCB1608KF-181T20 B811
S_3.3LVDS
HCB1608KF-181T20
KEY-A
B812
S_1.8FE
AT+1.8V_2 KEY-B
HCB1608KF-181T20
GND
B813 KEY-C
S_1.8LVDS
HCB1608KF-181T20
B801
S_1.8DIG
AT+1.8V_1
HCB1608KF-181T20 S_3.3DAC
6
HDMI_INT
GND
FROM/TO POWER I/O RLY_H
C809 0.1 B
D_TU_AUDIO_L
C814 0.1 B
D_TU_AUDIO_R S_1.8FE
LPM_INT
S_3.3FE
DTV-H
HSYNC
DTV_TX
VGA-B
DTV_RX
VGA-G R816
FROM/TO SOUND AMP VGA-R R867
SCART1_Y_IN R850
AUDIO_MUTE
SP_AUDIO_OUT_L SW_SCART_B R855
SP_AUDIO_OUT_R
SW_SCART_G R868
SW_SCART_R/C R857
R862
SW_PB/D/PB
FROM/TO 21PIN
5
R859
SW_Y/D/Y
SCART2_FB
SW_PR/D/PR R863
EXT_MUTE-H
SC2_A_OUT_L
SCART2_FB R800
SC2_A_OUT_R
SC1_A_OUT_L SW/Y
SC1_A_OUT_R
S_1.8FE R876 47
SW_A_R
C810 0.1 B
SW_A_L
SW/C R864
SW_SCART_R/C
SW_SCART_G SCART2_V/IN R860
SW_SCART_B
R865
SW_SCART_CVBS_Y
SCART2_B_IN
R861
CVBS/IN
SCART1_Y_IN
SW_CVBS_TU/D_TU
SW/C
SC2_CVBS_OUT
S_3.3VO R866
SW_SCART_CVBS/Y SW/Y
D835
SW_CVBS[TU/D_TU] SW_SCART_CVBS_Y
UDZS5.6B
SCART2_V/IN
4
SCART2_V_IN
SC2_CVBS/OUT
L804 SW_CVBS_TU/D_TU S_3.3IO3
L800 2.2uH
L805 L806
2.2uH
L802 2.2uH
NLV25
2.2uH
2.2uH C901 NLV25
NLV25 SCART2_B_IN
NLV25
NLV25 C907
C841 27P CH
27P CH C904
C897
27P CH
27P 27P CH
AT+3.3V
CH
GND
SCL
C833
C890 C903 C905 C906 C908
C894
82PCH
82P CH 100P 82P CH 82P CH 82P CH SDA
CH
SW_Y
100P
SW_C
CH
C895 SC2_CVBS/OUT
82P
C898 L803
CH
3
27P CH 2.2uH
FROM/TO ASIC
NLV25
DTV_RESET
LPM_INT
DTV_LPM_CTL_H
DTV_TX
DTV_RX
TDO
TDI
AT+3.3V
TMS
FROM/TO AV JACK/SWITCH
S_DET
AUDIO_J_OUT_L
AUDIO_J_OUT_R
R906 100 CVBS/IN
CVBS_IN
R907 100 SW_Y/D/Y
2 SW_Y/D_Y
SW_PB/D/PB
SW_PB/D_PB
SW_PR/D/PR
SW_PR/D_PR
L808 L809
L807
2.2uH L810
2.2uH 2.2uH
C910
NLV25
NLV25
NLV25 2.2uH
27P CH
NLV25
C909
C911
100P
82P CH
GND
CH
FROM/TO JACK C914 C915 C917 C918 C920
12P CH 15P CH 12P CH 15P CH 12P CH
EPG_LED
KEY-A
KEY-B
KEY-C
HSYNC
VSYNC
1
VGA-R
VGA-G
VGA-B
[YUV/DVI/PC] SW_A1_R
[YUV/DVI/PC] SW_A1_L
STANDBY_LED
REMOCON
A B
H-13
C

SCALER SCHEMATIC DIAGRAM

GND
C845
0.1 B
C844 C846
0.1 B
0.1 B
156 155 154 153 152 151 150 149 148
R807
NC
68 NC
R802 2.2K R810 68 3.3
W841 3.3
R805
3.3
C817 0.1 B 3.3
68
0
3.3
R813 68 3.3
3.3
P1_2/GOUT/PWM2
R814 68 3.3
P1_1/BOUT/PWM1
R817 68 NC
P1_0/SVMOUT/REV
R909 1.8
VSUP1.8FE
2.2K 3.3
VSUP3.3FE
1
VIN22/DHS
C822 0.1 B
1
VIN21
C830 0.1 B
47 1
VIN20
C840 0.1 B
47 R811 1
VIN19
47
47 1
VIN18
C819 0.1 B
47 1
VIN17
C827 0.1 B
47 1
VIN16
C838 0.1 B
47 1
VIN15
C820 0.1 B 157
47 1
VIN13
C828 0.1 B
47 1
VIN12 158
47 C839 0.1 B 0.8
VIN11
D831 0.5
VIN9 159
UDZS5.6B
47 D809 D833 1
VIN8
C800
UDZS5.6B UDZS5.6B 1
160
VIN7
0.1 B 1.8
VSUP1.8FE
0 161
GNDA
C824 0.1 B
47 D834 D811 D814 1
VIN6 162
C834 0.1 B
47 UDZS5.6B UDZS5.6B UDZS5.6B 1
VIN5
C825 0.1 B
47 163
1
VIN3
C835 0.1 B
47
1
VIN2
164
C826 0.1 B
D808 D812 D813 1
VIN1
47 UDZS5.6B UDZS5.6B UDZS5.6B 3.3
VSUP3.3VO 165
C815
NC
VOUT3
NC
0.1 B VOUT2
1.2
VOUT1
204 656I6/P3_6
D803 D830 0
GND3.3IO3
UDZS5.6B UDZS5.6B 3.3
VSUP3.3IO3 205
C816 0.1 B NC
656I0/P3_0
206
NC
656I1/P3_1
C832 0.1 B
R875 47
NC
656I2/P3_2
207
NC
656I3/P3_3
NC
656I4/P3_4 208
NC
656I5/P3_5
NC
NC
0
5.0 5.0 0 5.0
NC
5 6 7 8
3.3
1 2 3 4 5 6 7 8 9
R917
2.2K
4 3 2 1
0 0 0 0
RESETQ
NC
NC
5 4
NC NC
OUT IN GND
1 2 3
R812
3.4 3.4 0
2.2K
D804
RB520S-30-TE61
C
D E
(MAIN PCB)
C850
0.1 B
R822 6.2K
147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112
111 110 109 108 107 106 105
156 155 154 153 152 151 150
OSDB0/DGO2_1
104
DRO1_8/DRO1_6/LVDSB_0P
OSDB1/DGO2_0
103
DRO1_9/DRO1_7/LVDSB_0N
102 OSDB2/P3_4/DBO2_7
P1_7/TDO
SCALER
IC803 101 OSDB3/P3_5/DBO2_6
P1_6/TCLK
VCT6973G-FA-B3-000
P1_5
P1_4
GND3.3DAC
VSUP3.3DAC
56
DRI1
P1_3/ROUT/PWM3
55
DRI2
54 DRI3
53 DRI4
656I7/P3_7
656CLKI
656CLKO
49
50 51 52
656O7/P4_7/TCLKFW 1 2 3 4
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
D E
F G
B819
S_8.0AU
HCB1608KF-181T20
R852 100 EPG_LED
B818
S_5VSIF
HCB1608KF-181T20
FROM INTERFACE_HDMI IC
111 110 109 108 107 106 105
R896 4.7K
0 GND
0 R897 4.7K
3 R843 100
LPM_INT
3.3 R848 100
DTV_AV_SW
3.3
OSDHCS0/P3_7/DBO2_5
C886
S_3.3IO1
OSDHCS1/P3_6/DBO2_4 NC
0 R911 2.2K
OSDFSW/DBO2_3 0.1 B
W831
0 R912 2.2K DTV_LPM_CTL_H
OSDCLK/DBO2_2
3.3
VSUP3.3IO1
R871 4.7K
3.6
GNDM3.3IO1
0 R914 2.2K R853 68 DTV_TX
OSDH/DBO2_1
0 R915 2.2K
OSDV/DBO2_0 R845 68 DTV_RX
3.3
P2_5/TMS
3.3 R870 4.7K
P2_4/TDI
NC
P2_3
3.3 R846 68 REMOCON
P2_2
3.3
P2_1
3.3 DTV-H
P2_0
3.3 C888 0.1 B W830 S_3.3FL
VSUP3.3FL
0
GND3.3FL
25
3.3 R849 68 SDA
SDA
3.3 R851 68 SCL
SCL
26
HSO NC
VSO NC
C885
CLKOUT NC
3.3 18P CH
XTALOUT
3.2 W818
XTALIN
3.3 C884 AT+3.3V
VSUP3.3COM
0
18P CH S_3.3COM
GND3.3COM
3.3 S_3.3RAM
VSUP3.3DRI
0
GND3.3DRI
3.3 DPB0
DBI0
3.3
DPB1
DBI1
3.3
DPB2
DBI2
3.3 DPB3
DBI3
3.3 DPB4
DBI4
3.3 DPB5
DBI5
3.3 DPB6
DBI6
3.3 DPB7
DBI7
3.3 DPG0
DGI0
3.3 DPG1
DGI1
3.3 DPG2
DGI2
AT+3.3V
3.3 DPG3
DGI3
3.3
DPG4
DGI4
3.3 DPG5
I2C_OFF
DGI5
3.3 DPG6
DGI6 SDA
3.3 DPG7
DGI7
SCL
3.3 DPR0
DRI0
3.3 DPR1
3.3 DPR2
3.3 DPR3
3.3 DPR4
50 51 52
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F G
H
8
FROM/TO POWER
P.CON+8V
PANELPOWER_H
DTVPOWER_H
SYS_POWER_H
LIGHT_CONTROL
LIGHT_POWER_H
POWER_FAIL
RLY_H
GND
FROM/TO REGULATOR
P.CON+5V_VCTP
7
RXT_RST#
FROM/TO TUNER
DTV_AV_SW
SIF
DDEN
DDCK
DPG7
DPG6
DPG5
DPG4
DPG3
DPG2
DPG1 6
DPG0
DPR7
DPR6
DPR5
DPR4
DPR3
DPR2
DPR1
DPR0
DPB7
DPB6
DPB5
DPB4
DPB3
DPB2
DPB1
DPB0 5
HDMI_I2SSCLK
HDMI_I2SSDO
HDMI_I2SWS
HDMI_INT
RXT_RST#
4
CP802
A2001WV2-6P
AT+3.3V 6
GND 5
IIC_OFF 4
EEPROM_SDA 3
EEPROM_SCL 2
GND 1
FROM/TO DVD INTERFACE
SW_Y
3
SW_C
SW_A2_L
SW_A2_R
FROM/TO PANEL INTERFACE
LCD_TXOUT0-
LCD_TXOUT0+
LCD_TXOUT1-
LCD_TXOUT1+
LCD_TXOUT2-
LCD_TXOUT2+
LCD_TXCLKOUT-
LCD_TXCLKOUT+
LCD_TXOUT3-
LCD_TXOUT3+
FROM/TO SUB MICON/RS-232C
2
SCL
SDA
1
PCBF40
CMF112
H
H-14