Sharp LC-32SH20U Service Manual page 46

A B
8
SCART_AUDIO_SW
DVB_RESET-L
DVB_POWER_CTL-H
DVB_MUTE-L
SD_H
7
SCART1_Y
DVS
FROM/TO SCALER
DVB_FAN_ON-H
DIGI/ANA_CVBS
SCALER-H
STANDBY_LED
REMOCON_IN
AFT
SCART1_Y
EXT_MUTE-H
POWER_FAIL
POWER_ON-H
LCD-H
SCALER_RESET
LCDON
R158
6 LIGHT_CTL
S_DET
STEREO_RESET
SDA1
HDMI_SW
SCL1
4SI_SCL
SW_SCART
4SI_SDA_IN
4SI_SDA_OUT
IIC_OFF
4SI_CHIP_SE
R102
AUDIO_MUTE
LCD-H
SCALER_RESET
S_DET
3DY/C_RESET
SW_SCART
SCART_AUDIO_SW
AFT_2[HIGH]
DVS
3DY/C_RESET LCDON
AFT_2[HIGH]
DVB_MUTE-L
DVB_RX
5
DVB_TX
DVB_RESET-L
DVB_POWER_CTL-H AFT W907
SD_H DVB_AFT
AFT_1[LOW] KEY-B
KEY-A
4
DIGI/ANA_CVBS
FROM/TO ADC1
SCL1
SDA1
DDVS
FROM/TO INTERFACE_HDMI IC
HDMI_H
FROM/TO HDMI MICON2
HDMI_SW
P.CON+3.3V
3
FROM/TO REGULATOR
AT+3.3V
P.CON+3.3V
SCALER-H
P.CON+5V
AT+5V
HDMI_H
GND
2
FROM/TO AV_SWITCH1
C_SYNC
SD_SW1
1
A B
H-17
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C
MICON SCHEMATIC DIAGRAM
R131 10K
NC NC
NC
2.51 0 0 0 0 0
0 0 0 0 0
75 74 73 72 71 70 69 68 67 66
C123 0.1 B
3.2
0
NC
DISC_IN_DET
3.2
NC DVD_RESET
D101 UDZS5.6B
0
JG101 SW_HD/SCART_Y
C106 0.1 B
3.2
75 HEADPHONE_IN
SCALER_RESET
4.7K
0
76 SCALER-H
S_JACK_IN_DET
0
JG120
HDMI_SW
R175 0
SW_SCART/COMPONENT_SW
100 3.2
IIC_OFF
10K
3.2
LCD_H
0
JG103
3DY/C_RESET
OEC7154A
0
JG104
AFT_2(HIGH)
3.2
LCDON/PDWN
0
NC VS_ON/CPUGO
0
NC PDP_RLY/PDPGO
1.4
A_TUNER_AFT
C104 0.1 B
3.2
KEY-B
3.2
KEY-A
JG137 0
AVSS
98 DIGI/ANA_CVBS
0
PANEL_READY
99 DVD/AV3
3.2
VREF
100 NC
3.2
AVCC
0
0
NC
R199
0
NC
1K
1 2 3 4 5 6 7 8 9 10
3.2 3.4 3.2 3.2 3.2 0 0 0 0 3.2 3.3
CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR
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.
C
D E
(SCALER PCB)
R194
100
LEVEL SHIFT
Q106
R137 R141 KTK5132E
4.7K 100
3.3
C116
R136 R142
R195
6.3V 220
4.7K 100
V-S
100
C117
0.1 F
NC NC NC
2.75 2.75 0 0 3.2 0 0 0 3.4 3.2 3.2 3.2 0 0
65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
0
NC
0
NC
0
JG102
0
50 SC2_CVBS_OUT-H JG105
0
SW_POP2
49 SC2_AUDIO_OUT-H JG106
R134
0
SD_SW1
STANDBY_LED
48
0 R119 1K
P50/^WRL/^WR
47
SW_POP1
4.7K
0
DTV/DVD_SW
JG127
3.2 R120
HDMI/DVI
0 1K
SCALER_SW NC
MICON
3.2 R123
IC101
YUV_SW
0 1K
EPM
0
R126
COMPONENT/HDMI
0 JG129
POD_DET
R181
0
HDMI_H JG130
0
DV1000_RESET JG131
0
DVB_RX
0
DVB_TX
0
28 SDA1
(RST1)
0
27 SCL1 (CLK1)
3.2
26 NC DVD_RX
3.2
DVD_TX
3.2
3.2
0
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
0 3.09 3.2 3.2 3.3 3.16 3.2 0 0 3.2 0 0 3.2 0
NC NC NC
R111
10K
R117
4.7K
R116
4.7K
JG112 JG134
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
LEVEL SHIFT
Q104
KTK5132E
EEPROM_SCL
3.3 5.0
3.3
EEPROM_SDA
5.0
R192
SW
AT+5V
5.0
3.3
0 Q105
5.6K
RT1P241C
4.9
0
AUDIO_MUTE
SW
3.3
Q101
RT1N241C
EXT_MUTE-H 0
AFT_1[LOW] R151
STEREO_RESET
DVB_FAN_ON-H
10K
R178
STANDBY_LED
4.7K
SD_SW1
HDMI/DVI
NC
R122
4.7K
1K COMPONENT/HDMI
W897
AT+3.3V
NC 7
1K HDMI_H
SCALER_RESET
6
RESET
4SI_CHIP_SE
CHIP_SELECT 5
4SI_SCL
JG135
4SI_SCL 4
R145
DVB_RX
4SI_SDA_IN
4SI_SDA_IN 3
R146 100
4SI_SDA_OUT
DVB_TX
4SI_SDA_OUT 2
100
JG136 GND 1
RST1
A2001WV2-7P
CP103
CLK1 PC_CONTROL
R147
DVD_RX
R148 100
DVD_TX CP101
A2001WV2-5P
100
1
GND
EEPROM_SCL
2
EEPROM_SCL
EEPROM_SDA
3
EEPROM_SDA
IIC_OFF
4
IIC_OFF
5
GND
0 0 NC DVD_TX
NC
5 4
DVD_RX
NC NC
RST1
CLK1
OUT IN GND
1 2 3
CNVSS
R135
3.4 3.4 0
AT+5V
10K
D105
RB520S-30-TE61
5.0 5.0
5
4
0 5.0
EEPROM_SCL
EEPROM_SDA
5.0 5.0 0 5.0
5 6 7 8
4 3 2 1
0 0 0 0
F G
H
8
FROM/TO JACK
HDMI/DVI
COMPONENT/HDMI
KEY-A
KEY-B
7
6
5
4
ROM WRITER
MICON_DATA
CP102 A2001WV2-10P
GND 1
TX 2
BUSY 3
NC NC 4
VCC 5
CLK 6
RX 7
3
CNVSS 8
W820
RESET 9
GND 10
0 5.0
6 7 8
2
3 2 1
5.0
5.0 R188
10K
R189
PCBDS0
10K
CEF156
1
H
H-18