Read Sharp LC-42DH77EC (serv.man6) Service Manual online
LC-32/42/46DH77E/RU/S
4 – 2
[2] SYSTEM BLOCK DIAGRAM (LC-32DH77E/RU/S)
1
2
3
10
9
7
6
5
4
8
J
A
B
C
D
E
F
G
H
I
13
11
19
18
16
15
14
12
17
SYSTEM BLOCK DIAGRAM
4 or 5-Wavelength
BU5V
OFL
60V
13V
NOISE_FILTER
60V
13V
REG2
STBY_CONV.
(9pin)
60V
60V
FB
AC-DET
MAIN_CONV.
(12pin)
PS_ON
AC_INLET
CONTROL
ADIM
ERR
60V
PFC
13V
BU+5V
STB
OVP
(41pin)
KEY2
AMP13V
CVBS_YU_OUT
CNVss
P2001
TUNER_CVBS
SC1503
I2C1_SCL
(41pin)
BU+3.3V
SC1_CVBS_Y
Spliter
20MHz
OFL2
IC2009
To External
SC2_IN_L/R
RXD,TXD_CPU
DET_SYNC
D3.3V
PC/HDMI_L/R
S+8V
MONITOR_OUT_L/R
SC1_IN_L/R
LR_OUT
HDMI-1
(MINI_PLUG)
USB
D_IF IN P/N
AC_DET
POW_SW
IR_PASS
OPT_OUT
TUNER_CVBS
7WH126FU
MUTE
RGB
D102
TS_CI_OUT
SW_TMDS_D1
(12pin)
LNB_SHORT
IC2004
STB
CEC_O12
MONITOR_L/R
CVBS_MONI_OUT
W_PROT_M
HP_L/R
P2701
LNB_SHORT
MUTE
MENU
COMP_IN_L/R
CONT_DET
FS/FB
SW_TMDS_CLKP/N
TS_CI_IN
R/C
RS_BUF_CNT
POWR_LED
SC1_V_OUT
HP_L/R
TEST_MODE
X2002
PNL_ROM_EN
POW13V
D_POW
SPDIF_OUT
OFL1
SW_TMDS_D0P/N
TUNER_OUT_L/R
CVBS/LR
D520
SC1FSW
SIF
D3.3V
MAIN_SYSTEM
D5V
BU+3.3V
R
VCOM_SCL/SDA
J504
CI_CEB, CI_RB
VOL-DOWN
REG2
BU+5V
BACK-UP_SYSTEM
RXD/TXD_DBCG
UR+13.5V
COMP_YPbPr
IC9601
TUNER_OUT
I2C1_SDA
MUTE
FS/
N_CPU_RST
EEPROM
INTERFACE)
AC_DET
BUSY/CE/EPM/SCLK
RS232C TxRx
D3.3V
J3301
AV_LINK
CI_D[7:0] /CI_A[14:0]
S2004
MAX3221
HDMI_1
AV_LINK
J506
IC8455
P2603
(PC)
PM_REQ,CBOOTS
D1.8V
Flash Memory
QSTEMP
DET_SYNC
G/B
PNL_WP
AIN0+/-,AIN1+/-,AIN2+/-,AIN3+/-,AIN4+/-,ACK+/-,
Connector
TVPOW
SP
(10pin)
S2007
D3.3V
RGB
SW
D_POW
HDMI_2
SC2_Y/C
SC1_CVBS/Y
SLOWSW1
BU3.3V
SC2_V_OUT
AV_OUT
CVBS/LR
D3.3V
CIEN,CIDET
IFAGC
IR_SW.
KEY2
OPC+3.3V
PC_H/Vsync
CH-DOWN
N_SRESET
IC8454
AHC1G08W
PNL_IC2_EN
OPC
BD6538G
X2001
27MHz
LED_OPC
RXD/TXD_CPU
SC1FSW
IC2601
SC2_Y/C
SW.
RESET
AV_LINK_I
EXE_LED1
POWG_LED
T7SET08
CEC_LINE
SC8452
AUDIO_OUT
DDC_1
EEPROM
J505
D_IF IN P/N
IC2008
MUTE
BR24S64F
20MHz
TU_CVBS_OUT_MUTE
COMP_IN_L/R
(10pin)
SLOWSW2
CVBS/LR
DET_COND
CVBS BYPASS
HC2G66DP
SW
VCOM_WP
SDA.SCL(400Hz)
SC1_IN_L/R
OPC+3.3V
etc.
BR24C21F
CVBS_IN_L/R
BU+5V
TEST_MODE
SLOWSW2
N_RESET
IC3301
SC2_CVBS_Y
SPK_OUT
S24C508J
CPU_UATXD2_UCOM
X4401
SC502
OPT_OUT
SC2_CVBS/Y
USB_DP/N
DDC_3
SC2_IN_L/R
SC501
CVBS__IN
VOL-UP
DDC_2
Disclete
RS_BUF_CNT
D1.05V
(COMMON
SIF
STB
Disclete
HP_PLUG
Spliter
HDMI-2
Disclete
SC4401
GPFSV51V
SC1_Y/C
HDMI-3
HV_MODE
CI_DATA
ANALOG_RGB
S2002
TUNER_SDA/SCL
EXE_LED
DET_POW3_D3V3
EEPROM
IC8452
LCX157FT
DET_POW1_13V
RXD/TXD
SW_TMDS_D2
CONT_TEST
SC1502
HDMI-4
CVBS_IN_L/R
UCOM_RST
S80927NM
RC
CNVss
SM_POW
PC_RGB
POWER
PM_REQ,CBOOTS
TMDS_Rx/ I2C_SINK
TS_CPU_OUT
TC7SH00U
Disclete
CI_CNT_RESET
SC503
Debug &
KEY1
OPC
J506
IFAGC
RGB
ERR
YPbPr/LR
TUNER
PNL_EN
INPUT
LED_OPC
ANT_POW
LVDS_OUT
S2001
S+13.5V
SC1_Y/C
PS_ON
CPU_UARXD2_UCOM
N_SRESET
STBY_POW
HC2G66DP
[DV] INTERFACE
ANT_5V_SW
CNVss
CH-UP
D103
PE
IC503
SLOWSW1
BU+3.3V
AUDIO(R/L)
HDMI2/PC
Piogram
S2006
HP
SC1505
OPC
IC2001
HDMI_3
DET_COND
DET
CPU1.2V
BU+3.3V
KEY2
S2003
DEBUG
CVBS_IN
SPK_OUT_L/R
RGB
AV_LINK
IC501
TS_CPU_IN
SC1801(21pin)
TU1101
SC1501
EXE_LED
MONITOR_L/R
(15pin)
IC506
OPT OUT
OFL2
BIN0+/-,BIN1+/-,BIN2+/-,BIN3+/-,BIN4+/-,BCK+/-
LCD_EN
S2005
TH2001
AHC1G08W
PC_RGB
MUTE
PC_H/Vsync
(9pin)
PDD[0:7]
CEC_0
LR_OUT
IC2007
LED_G
COMP_YPbPr
AV_LINK_O
TUNER_CVBS_SEL
RESET
ERR_L
OPC
J501
MUTE_A_ALL
RS_ON
RS_ON
DET_POW2_PNL12V
PC/HDMI_L/R
ERR_PNL
LINE REG
VON
SW.
MUTE_A_ALL
OFL1
LED_R
KEY1
TUNER_OUT_L/R
CEC_I12
(15pin)
LCD_PANEL
1920x1080
LB
POWER_UNIT+INVERTER
CONTROLLER
BACKLIGHT
IC7501
PD
CCFL
BD9883FV
LW
LP
LCD PANEL UNIT
LCD_CONTROLLER
IXC721WJQZ
IC2701
EXT1(CVBS/YC/RGB)
CIRCUIT
MONITOR OUT
Digital AV decode
IC8401
1066Mbit
IC1504
IC4405
DIGITAL
TUNER OUT
EXT6
OPC
USB
RA(P102)
DDR2
PD(P9601)
MM1506XN
IC3302
EXT5
IC3501
EXT2(CVBS/YC)
MM1507XN
AUDIO_OUTPUT
512Mbit
IXC786WJ
IR
RA(P2003)
R/C, LED UNIT
FLASH
EXT8
EXT4
IXC790WJ
RECEVER
RMC101
HDMI-SW
IC2002
SP_L
MM1756AU
SP AMP
IC101
MAIN UNIT
EXT7
MT8295
MUX
SP_R
POWER_SUPPLY
EXT4/6
IC508
IXC790WJ
SII91873
MONITOR_MICON
LP(P2602)
IC507
OUTPUT(AUDIO)
YDA148QZ
IXC773WJQZ
CI
LW(P2601)
1066Mbit
LB(P9602)
RS-232C
DDR2
CI Controller
EXT3(COMP/AUD)
SENSOR
IC504
IC3502
LC-32/42/46DH77E/RU/S
4 – 3
[3] SYSTEM BLOCK DIAGRAM (LC-42/46DH77E/RU/S)
1
2
3
10
9
7
6
5
4
8
J
A
B
C
D
E
F
G
H
I
13
11
19
18
16
15
14
12
17
SYSTEM BLOCK DIAGRAM
4 or 5-Wavelength
BU5V
NOISE_FILTER
13V
STBY
INV_60V
AC-DET
SYS
(12pin)
PS_ON
AC_INLET
CONTROL
60V
PFC
13V
BU+5V
(15pin)
(41pin)
(6pin)
(6pin)
(6pin)
(3pin)
(3pin)
(4pin)
(4pin)
PNL+12V
PNL+12V
INV_60V
INV_12V
OFL1
STB
ERR
ERR
REG2
OFL2
INV_12V
INV_12V
AC-DET
OVP
SW.
INV
PNL_12V
IC2004
DET_POW3_D3V3
LCD_EN
REG2
EEPROM
SW_TMDS_D0P/N
RXD/TXD_DBCG
S24C508J
[DV] INTERFACE
D102
R/C
P2603
HP_PLUG
SLOWSW1
PC_RGB
LNB_SHORT
CVBS_IN_L/R
CONT_DET
TEST_MODE
Piogram
STBY_POW
DET_SYNC
TU_CVBS_OUT_MUTE
DEBUG
D3.3V
etc.
D103
CVBS/LR
BACK-UP_SYSTEM
DDC_1
Disclete
RS_ON
CNVss
TEST_MODE
PNL_IC2_EN
PC_RGB
EXE_LED
CVBS_MONI_OUT
MONITOR_L/R
SW_TMDS_D1
CIEN,CIDET
SC1_Y/C
SC1502
PDD[0:7]
MUTE
D3.3V
CONT_TEST
IR_PASS
AV_LINK
LED_G
SC1_IN_L/R
DDC_2
MUTE
LR_OUT
MAX3221
EXE_LED1
POWG_LED
BU3.3V
BU+5V
LVDS_OUT
BU+5V
7WH126FU
DET_POW1_13V
BU+3.3V
OPC
CVBS__IN
SW
OPC
OPC
RESET
COMP_IN_L/R
CEC_LINE
HDMI-4
N_SRESET
RS_BUF_CNT
YPbPr/LR
SW.
SC1FSW
D3.3V
PS_ON
TU1101
SW.
SC1_IN_L/R
AV_LINK
D_IF IN P/N
D5V
SLOWSW1
HV_MODE
AV_LINK_O
IR_SW.
RGB
OFL2
POW_SW
(PC)
PNL_WP
BU+3.3V
OPT_OUT
N_CPU_RST
J506
LINE REG
HDMI_2
SC1801(21pin)
IC9601
J3301
CVBS_IN
HDMI_3
POWR_LED
CVBS/LR
X2002
D1.8V
CVBS/LR
CPU_UATXD2_UCOM
SP
SPDIF_OUT
CPU_UARXD2_UCOM
ERR_L
KEY1
W_PROT_M
SC4401
To External
S+8V
PC_H/Vsync
Disclete
ERR_PNL
SC2_CVBS/Y
RGB
(41pin)
AC_DET
PM_REQ,CBOOTS
SC501
OFL1
P2701
SC2_IN_L/R
ANT_5V_SW
POW13V
SW_TMDS_D2
SC1503
IC8455
AUDIO_OUT
TUNER_CVBS
D3.3V
QSTEMP
Flash Memory
IC2008
SM_POW
RGB
MUTE_A_ALL
AV_OUT
IC8454
AHC1G08W
SC2_CVBS_Y
TS_CPU_IN
D3.3V
TVPOW
HDMI-2
PE
SC1_CVBS_Y
SC2_V_OUT
DDC_3
IC506
RC
Disclete
RS_ON
CEC_0
I2C1_SCL
X2001
OPT_OUT
(COMMON
PM_REQ,CBOOTS
(12pin)
J504
AIN0+/-,AIN1+/-,AIN2+/-,AIN3+/-,AIN4+/-,ACK+/-,
SC8452
LED_OPC
TUNER_OUT_L/R
RXD/TXD_CPU
TUNER
IC501
D_IF IN P/N
RESET
PNL_EN
RXD/TXD
BIN0+/-,BIN1+/-,BIN2+/-,BIN3+/-,BIN4+/-,BCK+/-
HP_L/R
I2C1_SDA
OPC+3.3V
CPU1.2V
LR_OUT
(MINI_PLUG)
SC1_CVBS/Y
TUNER_SDA/SCL
IC2009
HDMI-1
SIF
KEY2
CEC_I12
UR+13.5V
TC7SH00U
OPC
DET_SYNC
SPK_OUT
FS/
P2001
TUNER_OUT_L/R
SC2_Y/C
DET_COND
COMP_YPbPr
R
CEC_O12
Connector
S80927NM
TS_CI_IN
J505
SW
LED_R
SC2_Y/C
VCOM_WP
Debug &
AC_DET
EEPROM
HP
SLOWSW2
LED_OPC
SC503
CVBS BYPASS
DET_POW2_PNL12V
HP_L/R
BR24C21F
DET_COND
IC503
CVBS_YU_OUT
AV_LINK
TMDS_Rx/ I2C_SINK
CI_CEB, CI_RB
OFL1
INTERFACE)
IC3301
EXE_LED
SC1501
SC2_IN_L/R
KEY2
STB
CNVss
(9pin)
STB
IFAGC
IC2001
RXD,TXD_CPU
ANALOG_RGB
D_POW
RGB
D520
KEY1
TUNER_CVBS_SEL
BUSY/CE/EPM/SCLK
SPK_OUT_L/R
PNL_ROM_EN
D_POW
BR24S64F
TH2001
OPT OUT
MUTE
D1.05V
MONITOR_L/R
MAIN_SYSTEM
HC2G66DP
HDMI2/PC
Disclete
PC_H/Vsync
TUNER_OUT
T7SET08
AV_LINK_I
MUTE_A_ALL
G/B
PC/HDMI_L/R
RS232C TxRx
RS_BUF_CNT
BU+3.3V
J506
OFL2
MUTE
COMP_YPbPr
SC1505
Spliter
MUTE
UCOM_RST
VON
J501
SC1_V_OUT
HDMI-3
N_RESET
GPFSV51V
MONITOR_OUT_L/R
EEPROM
SC1_Y/C
VCOM_SCL/SDA
SDA.SCL(400Hz)
TS_CI_OUT
(10pin)
ERR
AHC1G08W
HDMI_1
CVBS_IN_L/R
20MHz
OPC+3.3V
TS_CPU_OUT
(10pin)
20MHz
CI_CNT_RESET
SIF
BU+3.3V
FS/FB
SC1FSW
USB_DP/N
LNB_SHORT
BD6538G
SLOWSW2
IFAGC
PC/HDMI_L/R
COMP_IN_L/R
IC8452
LCX157FT
DET
AUDIO(R/L)
CI_D[7:0] /CI_A[14:0]
SC502
ANT_POW
IC2007
USB
N_SRESET
SW_TMDS_CLKP/N
S156
MENU
MENU
S152
S153
(5pin)
CH-DOWN
CH-UP
INPUT
VOL-DOWN
S151
S157
S155
POWER
S154
VOL-UP
VOL-UP
(4pin)
27MHz
X4401
TUNER_CVBS
CI_DATA
(15pin)
CNVss
S+13.5V
AMP13V
IC2601
Spliter
HC2G66DP
LCD_PANEL
1920x1080
POWER_UNIT
PD
LW
LP
LCD PANEL UNIT
LCD_CONTROLLER
LB1
LB(CN7502A)
INVERTER_UNIT
LB2
LA(CN7501A)
LA
PL
PL
512Mbit
IC3502
IC4405
EXT4
R/C, LED UNIT
EXT3(COMP/AUD)
MUX
EXT8
CIRCUIT
IR
FLASH
Digital AV decode
CI Controller
IC1504
HDMI-SW
EXT1(CVBS/YC/RGB)
IC2701
LB(P9602)
SP AMP
MM1756AU
LW(P2601)
CI
IC101
POWER_SUPPLY
1066Mbit
IXC786WJ
IXC790WJ
TUNER OUT
LP(P2602)
MM1507XN
OPC
AUDIO_OUTPUT
EXT4/6
IC2002
IC8401
PD(P9601)
SENSOR
EXT6
SII91873
RS-232C
IXC721WJQZ
YDA148SZ
IC3501
EXT2(CVBS/YC)
IC508
EXT7
IXC773WJQZ
DDR2
DIGITAL
SP_L
RECEVER
MM1506XN
MONITOR_MICON
RMC101
USB
OUTPUT(AUDIO)
EXT5
MAIN UNIT
IXC790WJ
RA(P2003)
1066Mbit
MT8295
RA(P102)
SP_R
DDR2
MONITOR OUT
IC3302
IC504
IC507
KEY UNIT
KM(P151)
KM(P2004)
LC-32/42/46DH77E/RU/S
4 – 4
[4] OVERALL WIRING DIAGRAM (LC-32DH77E/RU/S)
1
2
3
10
9
7
6
5
4
8
J
A
B
C
D
E
F
G
H
I
13
11
19
18
16
15
14
12
17
OVERALL WIRING DIAGRAM
RUNTKA456WJQZ
RA
R/C,LED_UNIT
QCNW-J286WJQZ
QCNW-H330WJQZ
QCNW-H847WJQZ
QCNW-H846WJQZ
QCNW-H844WJQZ
QCNW-J550WJQZ
LCD_CONTROL_UNIT
(DUNTKF190WE)
DIGITAL
PD
EXT3
LP
(ANALOG_RGB_PC)
EXT4/6
AUDIO_OUT
LB
ANT_IN
EXT2(RGB)
RS-232C
MAIN_UNIT
EXT1(RGB)
EXT5(HDMI1)
LW
(PC_AUD/HDMI2)
EXT4
EXT6(HDMI2)
PD
LB
(POWER & INVERTER_UNIT)
(DUNTKF096WE)
P7002
P7003
SC4801
SPEAKER_UNIT(L)
SPEAKER_UNIT(R)
RA
SP
KM
EXT7(HDMI3)
EXT8(CVBS)
AUDIO_OUT
T7501
T7502
CN7503
CN7504
CN7505
CN7506
T7503
CN7507
CN7508
T7504
CN7509
CN7510
T7505
CN7511
T7506
CN7512
CN7513
CN7514
T7507
CN7515
CN7516
1
P102
15
SC503
P9601
SC502
J3301
SC1502
J504
P2601
9
IC3302
SC1801
J505
SC504
D520
1
1
15
P2603
1
SC1503
1
IC3502
12
1
IC3501
SC501
2
J506
P2602
P9602
19
J502
41
20
J503
J501
1
12
CN7201
91
CN7502
T7101
T7103
L7104
L7101
L7102
CN7101
1
41
1
15
1
4
IC1504
SC1802
IC2002
SC8452
P3301
2
20
19
1
P2001
1
P2002
14
4
1
P2701
P2003
4
1
10
1
SC4401
IC4405
