LG 42LT760H-TA (CHASSIS:LB3AF) Service Manual ▷ View online
- 25 -
BLOCK DIAGRAM
LG
E2
11
2
(E
U
C
om
m
er
ci
al
)
SP
D
IF
O
U
T
N
A
N
D
Fl
as
h
(1
6G
b)
U
SB
C
VB
S(
M
)
D
IF
(+
/-)
U
S
B
1
PC
-R
G
B
E
xt
. S
PK
S
PD
IF
LA
N
SY
ST
EM
D
D
R
3
X
4
(2
G
b)
H
D
M
I3
H
D
M
I2
S
id
e
R
ear
Et
he
rn
et
C
VB
S
SY
ST
EM
E
EP
R
O
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X
1
(2
56
K
b)
H
D
M
I
S
/W
LV
D
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Et
he
rn
et
H
U
B
IC
R
F
D
V
B
T
/C
H
/N
T
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SI
F
Pr
o:
id
io
m
R
S-
23
2C
A
/V
1
D
em
od
Ex
t S
PK
A
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P
51
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(F
H
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)
30
P(
H
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37/
42/
47
32
L
R
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ear
In
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EC
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/V
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Pa
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O
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ia
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O
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LK S/W
U
S
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W
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IN
- 26 -
LV
1
300
200
540
521
530
820
550
810
120
500
501
510
400
900
910
A2
A4
A10
* Set + Stand * Stand Base + Body
570
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
MODEL_OPT_2
JTRST#
STB_SCL
SOC_RX
0 . 1 u F
C116
1K
R150
MODEL_OPT_0
1K
OPT
R147
/CI_CD2
2.7K
R166
OPT
EMMC_CLK
1K
R151
OPT
MT5369_TS_IN[1]
OSDA0
L/DIM0_MOSI
/PCM_CE1
OSDA1
+3.3V_NORMAL
MODEL_OPT_8
MODEL_OPT_6
1K
R148
JTMS
SOC_TX
CI_ADDR[0-14]
L/DIM0_VS
4.7K
R103
MT5369_TS_IN[5]
EMMC_DATA[2-7]
4.7K
R168
OPT
4.7K
OPT
OPT
R157
33
R158
OPT
MODEL_OPT_1
CI_DATA[0-7]
JTDI
/PCM_IORD
MT5369_MISTRT
MODEL_OPT_1
LED_PWM0
/PCM_REG
MT5369_XTAL_OUT
MT5369_MIVAL_ERR
SDA_NVRAM
MT5369_XTAL_IN
AVDD_33SB
JTCLK
MODEL_OPT_5
A_DIM
MT5369_TS_IN[4]
MT5369_MCLKI_SW
/PCM_OE
AVDD_33SB
PCM_RST
MODEL_OPT_3
MT5369_TS_IN[6]
MODEL_OPT_10
L/DIM0_SCLK
1K
R153
OPT
LED_PWM1
/PCM_IOWR
JTDO
0 . 1 u F
C118
OSCL0
VDD3V3
LED_PWM1
/PCM_WE
33
R136
MT5369_TS_IN[0]
MODEL_OPT_5
MODEL_OPT_3
MT5369_TS_IN[2]
MT5369_TS_IN[3]
MODEL_OPT_0
ERROR_OUT
MT5369_TS_IN[7]
M_RFModule_ISP
MODEL_OPT_6
+3.3V_NORMAL
MODEL_OPT_9
10K
R174
OPCTRL3
/PCM_WAIT
EMMC_CLK
10K
R169
OPT
22
R171
22
R170
OSCL1
PWM_DIM2
33
R137
4.7K
R161
OPT
4.7K
OPT
OPT
R178
PWM_DIM1
/CI_CD1
LED_PWM0
M_RFModule_ISP
IR
1K
R154
0 . 1 u F
C117
SCL_NVRAM
STB_SDA
27MHz
X100
MT5369_XTAL_OUT
MT5369_XTAL_IN
+3.3V_NORMAL
33
R143
MTK_JTAG
JTMS
+3.3V_NORMAL
10K
R144
1K
R152
MTK_JTAG
JTDO
JTRST#
JTCLK
JTDI
10K
AR100
10K
R149
MTK_JTAG
10K
R146
MTK_JTAG
10K
R145
MTK_JTAG
+3.3V_NORMAL
2.7K
R139
OSDA2
I2C_SDA2
33
R117
+3.3V_NORMAL
33
R115
I2C_SDA6
2.7K
R188
I2C_SCL4
I2C_SDA4
OSCL2
I2C_SCL5
33
R122
2.7K
R160
33
R116
I2C_SDA5
2.7K
R142
OSCL0
I2C_SCL2
STB_SDA
33
R111
33
R123
2.7K
R134
I2C_SDA1
I2C_SCL3
33
R114
33
R110
OSCL1
I2C_SCL6
I2C_SDA3
33
R113
2.7K
R164
OSDA1
2.7K
R173
2.7K
R156
33
R118
2.7K
R185
OSDA0
2.7K
R177
33
R112
I2C_SCL1
33
R121
STB_SCL
10K
R176
M_RFModule_RESET
10K
R162
10K
R163
/TU_RESET
EXT_SPK_DET
OPCTRL3
DSUB_DET
OPCTRL_1_SCL
OPCTRL_11_SCL
/S2_RESET
4.7K
MTK_DVB_T2_TUNER
R140
4.7K
MTK_Int_FRC/URSA5
R106
4.7K
MTK_CP_BOX
R135
4.7K
MTK_FRC3/URSA5
R101
4.7K
MTK_EPI
R189
4.7K
MTK_DVB_C2_TUNER
R186
4.7K
MTK_OPTIC_Tx_IC
R125
4.7K
MTK_3D_DEPTH_IC
R130
4.7K
MTK_FHD
R108
4.7K
MTK_DVB_S_TUNER
R175
4.7K
MTK_DDR_768MB
R132
4.7K
MTK_NON_EPI
R190
4.7K
MTK_NON_OPTIC_Tx_IC
R127
4.7K
MTK_DDR_DEFAULT
R133
4.7K
MTK_NON_3D_DEPTH_IC
R129
4.7K
MTK_NON_DVB_T2_TUNER
R141
4.7K
MTK_NO_FRC/Int_FRC
R102
4.7K
MTK_NON_CP_BOX
R138
4.7K
MTK_HD
R109
4.7K
MTK_NON_DVB_C2_TUNER
R187
4.7K
MTK_NON_DVB_S_TUNER
R184
4.7K
MTK_NO_FRC/FRC3
R107
OPCTRL_0_SDA
OPCTRL_10_SDA
OPCTRL_1_SCL
OPCTRL_11_SCL
OPCTRL_0_SDA
OPCTRL_10_SDA
0 . 1 u F
16V
C101
22
R191
+3.3V_NORMAL
22
R192
I2C_SCL1
4.7K
R181
I2C_SDA1
+3.3V_NORMAL
+3.3V_NORMAL
4.7K
R159
12507WS-12L
P100
MTK_JTAG
1
2
3
4
5
6
7
8
9
10
11
12
13
2 . 2 u F
10V
10V
C120
OPT
10K
R193
NON_EU
/S2_RESET
1.2K
R128
1.2K
R131
EMMC_DATA[0]
EMMC_DATA[1]
EMMC_CMD
0
R119
24pF
C115
24pF
C113
MAIN_AMP_RESET
LGE2112
IC105
JTCK
AP14
JTDI
AM14
JTDO
AR14
JTMS
AR15
JTRST
AN14
OSDA0
AP12
OSCL0
AN12
OSDA1
AP15
OSCL1
AN15
XTALI
AT34
XTALO
AU34
AVDD33_XTAL_STB
AK27
AVSS33_XTAL_STB
AH26
AVDD33_VGA_STB
AK18
AVSS33_VGA_STB
AK17
AVDD33_PLLGP
AK23
AVSS33_PLLGP
AM27
AVDD10_LDO
AJ20
GPIO0
H32
GPIO1
F37
GPIO2
F36
GPIO3
G37
GPIO4
G36
GPIO5
G35
GPIO6
G34
GPIO7
H34
GPIO8
L34
GPIO9
L32
GPIO10
K33
GPIO11
K32
GPIO12
H33
GPIO13
L35
GPIO14
K36
GPIO15
J 3 2
GPIO16
J 3 4
GPIO17
K34
GPIO18
K35
GPIO19
K37
GPIO20
J 3 6
GPIO21
J 3 7
GPIO22
J 3 5
GPIO23
J 3 3
GPIO24
G33
GPIO25
H35
GPIO26
H31
GPIO27
F34
GPIO28
E36
GPIO29
N33
GPIO30
P32
GPIO31
M35
GPIO32
M37
GPIO33
M33
GPIO34
F35
GPIO35
E35
GPIO36
E37
GPIO37
N32
GPIO38
M34
GPIO39
M36
GPIO40
M32
GPIO41
L33
GPIO42
E33
GPIO43
E32
GPIO44
F32
GPIO45
A29
GPIO46
D31
GPIO47
C31
GPIO48
E30
GPIO49
E31
GPIO50
F31
GPIO51
E29
GPIO52
AP9
GPIO53
AT9
GPIO54
AR9
GPIO55
AU9
ADIN0_SRV
AN23
ADIN1_SRV
AN24
ADIN2_SRV
AP23
ADIN3_SRV
AR23
ADIN4_SRV
AU23
ADIN5_SRV
AT23
ADIN6_SRV
AM24
ADIN7_SRV
AM23
U0TX
AR18
U0RX
AP18
U1RX
AU16
U1TX
AT16
POWE
A35
POOE
C33
POCE1
B34
POCE0
D33
PDD7
D29
PDD6
C30
PDD5
D30
PDD4
B31
PDD3
A31
PDD2
B32
PDD1
A32
PDD0
C32
PARB
D32
PACLE
A34
PAALE
C34
EMMC_CLK
C29
OPWRSB
AM20
ORESET
AM22
OIRI
AU21
FSRC_WR
D27
STB_SCL
AT21
STB_SDA
AR21
DEMOD_RST
T34
DEMOD_TSCLK
T32
DEMOD_TSDATA0
T36
DEMOD_TSDATA1
U36
DEMOD_TSDATA2
T33
DEMOD_TSDATA3
T30
DEMOD_TSDATA4
V33
DEMOD_TSDATA5
V32
DEMOD_TSDATA6
V31
DEMOD_TSDATA7
V30
DEMOD_TSSYNC
T35
DEMOD_TSVAL
T31
CI_INT
N36
CI_TSCLK
T37
CI_TSDATA0
R35
CI_TSSYNC
R37
CI_TSVAL
R36
PVR_TSCLK
R34
PVR_TSVAL
R32
PVR_TSSYNC
R33
PVR_TSDATA0
P33
PVR_TSDATA1
P34
SPI_CLK1
N37
SPI_CLK
P35
SPI_DATA
N34
SPI_CLE
N35
OPWM2
AU12
OPWM1
AT12
OPWM0
AR12
SD_D0
A37
SD_D1
C35
SD_D2
A36
SD_D3
B35
SD_CMD
B36
SD_CLK
B37
LDM_CS
AT11
LDM_CLK
AU11
LDM_VSYNC
AR10
LDM_DO
AM9
LDM_DI
AP10
LED_PWM1
AN22
LED_PWM0
AP21
OPCTRL11
AU20
OPCTRL10
AT20
OPCTRL9
AN18
OPCTRL8
AP20
OPCTRL7
AM18
OPCTRL6
AN19
OPCTRL5
AP19
OPCTRL4
AR19
OPCTRL3
AN21
OPCTRL2
AM19
OPCTRL1
AN20
OPCTRL0
AR20
TS_S_IN_0_CLK
TS_S_IN_0_VAL
TS_S_IN_0_SYNC
TS_S_IN_0_DATA
MTK_NEC_TX
MTK_NEC_RX
LAN1_DET
0 . 1 u F
C106
OPT
0 . 1 u F
C102
OPT
/USB2SER_RESET
1K
PWM1_PULL_DOWN_1K
R197
1K
PWM2_PULL_DOWN_1K
R198
USB_CTL1
/USB_OCD1
0
R1009
100
R1010
100
R1016
MT5369_TS_OUT[0-7]
MT5369_TS_VAL
MT5369_TS_CLK
MT5369_TS_SYNC
CI_A_VS1
/PCM_IRQA
0
R1005
0
R1006
0
R1007
0
R1008
0
R1022
0
R1023
0
R1024
TS_S_OUT_VAL
TS_S_OUT_SYNC
TS_S_OUT_DATA
TCLK_SEL
100
R1025
MT5369_MCLKI_SW
0
OPT
R1026
MT5369_MCLKI
TS_S_OUT_CLK
0 . 1 u F
C121
NLASB3157DFT2G
IC106
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
TCLK_SEL
0
OPT
R1027
+3.3V_NORMAL
+3.3V_NORMAL
10K
R1028
0
R1001
/USB_OCD2
USB_CTL2
0 . 1 u F
OPT
C123
0 . 1 u F
OPT
C122
M24C16-R
HDCP_EEPROM_ST
IC100
3
NC_3
2
NC_2
4
VSS
1
NC_1
5
SDA
6
SCL
7
WC
8
VCC
24LC16B
HDCP_EEPROM_MICRO
IC100-*1
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
MDS62110213
M22
GASKET3.5T_HEATSINK
MDS62110213
M23
GASKET3.5T_HEATSINK
MDS62110213
M20
GASKET3.5T_HEATSINK
MDS62110213
M21
GASKET3.5T_HEATSINK
I2C_SCL4
I2C_SDA4
33
OPT
R1030
33
OPT
R1031
2 . 2 u F
10V
C107
2 . 2 u F
10V
10V
C108
HDMI_CEC
0
OPT
R1014
+3.5V_ST
+3.5V_ST
AV1_CVBS_DET
0
R1033
OPC_EN
M24M01-HRMN6TP
IC104
3
E2
2
E1
4
VSS
1
NC
5
SDA
6
SCL
7
WP
8
VCC
WARM_MODE
10K
R1002
OPT
0 . 1 u F
16V
16V
C114
MMBT3904(NXP)
Q1001
OPT
E
B
C
+3.3V_NORMAL
100
R1003
OPT
22
R172
10K
R155
OPT
SOC_RESET
LAN2_DET
33 OPT
R1015
4.7K
R105
OPT
4.7K
R104
OPT
2.7K
R182
2.7K
R183
8pF
50V
50V
1 2 p F C r y s t a l
C115-*1
27.0MHZ
1 2 p F C r y s t a l
X100-*1
8pF
50V
50V
1 2 p F C r y s t a l
C113-*1
22
R1034
22
R1036
22
R1021
22
R1035
MDS62110205
GASKET8T_HEATSINK
M24
CI_DATA[5]
CI_DATA[7]
CI_DATA[2]
CI_DATA[4]
CI_ADDR[2]
CI_ADDR[10]
CI_ADDR[13]
CI_ADDR[5]
EMMC_DATA[7]
EMMC_DATA[6]
CI_ADDR[8]
CI_DATA[0]
CI_ADDR[6]
CI_ADDR[1]
EMMC_DATA[4]
CI_ADDR[11]
CI_ADDR[12]
CI_DATA[1]
EMMC_DATA[2]
CI_ADDR[7]
CI_DATA[3]
EMMC_DATA[3]
EMMC_DATA[5]
CI_ADDR[0]
CI_ADDR[3]
CI_DATA[6]
CI_ADDR[9]
CI_ADDR[14]
CI_ADDR[4]
MT5369_TS_OUT[4]
MT5369_TS_OUT[1]
MT5369_TS_OUT[2]
MT5369_TS_OUT[3]
MT5369_TS_OUT[5]
MT5369_TS_OUT[6]
MT5369_TS_OUT[7]
MT5369_TS_OUT[0]
8
MID_MAIN_1
2 0 1 1 . 0 9 . 2 9
LG FRC2
3D DEPTH
T 2 T u n e r
M O D E L O P T I O N 8 i s j u s t f o r C P B o x
I t s h o u l d n o t b e a p p i l e d a t M P
NON_3D_Depth_IC
S T u n e r
SoC
i n t e r n a l
FRC
NON_OPTIC
MODEL_OPT_9
OPTIC
1
MODEL_OPT_7
MODEL_OPT_3
S u p p o r t
FHD
W r i t e P r o t e c t i o n
- L o w : N o r m a l O p e r a t i o n
- H i g h : W r i t e P r o t e c t i o n
D i s a b l e
R e s e r v e d
DDR_768MB
EPI
R e s e r v e d
MODEL_OPT_2
DDR
MODEL_OPT_6
HIGH
MODEL_OPT_8
MODEL_OPT_0
N o t S u p p o r t
D e f a u l t
1
N o t S u p p o r t
CP BOX
MODEL_OPT_5
0
0
S u p p o r t
E n a b l e
LOW
1
NO_FRC
NVRAM
M o d e l O p t i o n
0
C l o s e t o e M M C F l a s h
( I C 8 1 0 0 )
MODEL_OPT_10
0
HD
S T R A P P I N G L E D _ P W M 0 L E D _ P W M 1 O P C T R L 3
I C E m o d e + 2 7 M + S e r i a l b o o t 0 0 0
I C E m o d e + 2 7 M + R O M t o N a n d b o o t 0 0 1
I C E m o d e + 2 7 M + R o m t o e M M C b o o t 0 1 0
f r o m e M M C p i n s ( s h a r e p i n s w / s N A N D )
I C E m o d e + 2 7 M + R O M t o e M M C b o o t 0 1 1
f r o m S D I O p i n s
DDR_Default
MODEL_OPT_1
1
MODEL_OPT_4
3D_Depth_IC
X-TAL
JTAG
I2C
I2C_1 : AMP, L/DIMMING,HDCP KEY
I2C_2 : T-CON
I2C_3 : MICOM
I2C_4 : S/Demod,T2/Demod, LNB
I2C_5 : NVRAM
I2C_6 : TUNER_MOPLL(T/C,ATV)
MODEL_OPT_7
HDCP EEPROM
S u p p o r t
N o t S u p p o r t
5 V T o l e r a n c e
MODEL_OPT_4
MODEL_OPT_4
C r y s t a l M a t c h i n g T e s t r e s u l t
: 2 7 p F - > 2 0 p F - > 2 4 p F
EAX6430790* : LD22* / LC22*
E A X 6 4 4 3 4 2 0 * : L T 2 2 * / L J 2 2 * / L A 2 2 * / L B 2 2 *
S O C < - P : I
xxLT760H-UA
S O C - > P r o : I d i o m o r C I S L O T
S O C - > P r o : I d i o m o r C I S L O T
MODEL_OPT_7
CI SLOT -> SOC
SOC -> CI SLOT
CI SLOT -> SOC
CI SLOT -> SOC
CI SLOT -> SOC
1 2 p F C r y s t a l & l o a d c a p .
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
0 . 1 u F
C3802
0 . 1 u F
C3803
+3.5V_ST
IR_OUT_RS232C
4.7K
R3814
0 . 1 u F
C3801
SPG09-DB-009
JK3803
1
2
3
4
5
6
7
8
9
10
EAN41348201
MAX3232CDR
IC3800
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
4.7K
R3811
JP3809
0 . 1 u F
C3800
JP3808
100
R3821
100
R3820
+3.5V_ST
EXT_12V
RS232_RX
RS232_TX
20V
OPT
OPT
D3804
20V
OPT
OPT
D3805
EXT_5V
0 . 1 u F
C3804
JK_DBG_TX
JK_DBG_RX
MTK_DBG_TX
JP3802
DBG_SW
0 . 1 u F
C3814
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3805
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
NEC_DBG_TXD
1000pF
50V
OPT
C3818
UART_DBG_SW
EXT_SPK_VOL+
JK_DBG_TX
5.6V
OPT
D3806
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3808
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
NEC_DBG_RXD
0
R3850
0 . 1 u F
C3815
+3.5V_ST
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3806
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0 . 1 u F
C3817
0
R3848
+3.5V_ST
+3.5V_ST
JK_DBG_RX
EXT_SPK_VOL-
MTK_DBG_RX
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3807
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
1000pF
50V
OPT
C3819
5.6V
OPT
D3807
JP3801
0 . 1 u F
C3816
P E J 0 2 7 - 0 4
EXT_SPK_CONTROL
JK3801
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
0
R3854
0
R3855
0 . 1 u F
C3821
0 . 1 u F
C3820
0
R3852
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3809
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0
R3853
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3810
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
+3.5V_ST
EEPROM_SW
SDA_NVRAM
SCL_NVRAM
I2C_SDA5
NEC_EEPROM_SDA
NEC_EEPROM_SCL
I2C_SCL5
0
R3856
OPT
0
OPT
R3857
+3.5V_ST
BAP70-02
50V
D3803
1K
R3834
3.6K
R3849
3.6K
R3851
4.7K
R3844
4.7K
R3845
+3.5V_ST
+3.5V_ST
+3.3V_NORMAL
+3.3V_NORMAL
JP3810
JP3811
JP3812
AV1_R_IN
AV1_CVBS_IN
P P J 2 3 3 - 0 1
JK3802
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
AV1_L_IN
AV1_CVBS_DET
5.6V
D3808
10K
R3810
+3.3V_NORMAL
18pF
50V
50V
ESD_MTK
C3805
5.6V
D3809
5.6V
D3811
5.6V
D3810
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3804
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0 . 1 u F
C3811
0 . 1 u F
NEW_UART
C3824
0 . 1 u F
C3822
0 . 1 u F
C3823
NEC_RX0
0
R3860
UART_SW1
MTK_DBG_TX
0
R3869
0 . 1 u F
NEW_UART
C3825
NEC_TX0
22
R3843
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3812
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0
R3835
NEC_RX3
0
OLD_UART
R3868
0
R3859
0
OLD_UART
R3864
0 . 1 u F
C3813
MTK_NEC_RX
0
OLD_UART
R3867
SOC_RX
0
R3847
22
R3846
UART_SW2
0
R3861
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3802
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
SOC_TX
NEC_TX3
RS232_TX
0
R3842
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC3811
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0
R3836
MTK_NEC_TX
MTK_DBG_RX
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
NEW_UART
IC3814
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
+3.5V_ST
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
NEW_UART
IC3813
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
UART_SW3
+3.5V_ST
0
OLD_UART
R3866
RS232_RX
0
R3858
0
R3865
+3.5V_ST
L3800
OPT
L3801
L3802
RS232C
38
JACK_COMMON
2 0 1 1 . 0 9 . 2 9
1A@5V /1A@12V FOR COMMERCIAL(RS-232C POWER)
xxLT760H-UA
EXT_SPK_CONTROL & DBG OUT
CONNECTION
UART DBG SWITCH
B 0 - A
EXT.SPK VOL Control
B 1 - A
B 0 - A
DEBUG_NEC/MTK
Debug MTK
Debug NEC
CONNECTION
B 1 - A
L
UART_DBG_SW
L
DBG_SW
H
H
NVRAM I2C SWITCH
B 0 - A
NVRAM - NEC
H
L
CONNECTION
NVRAM - MTK
UART_SW2
B 1 - A
L-MONO
Rear AV
CONNECTION
CONNECTION
MTK - NEC_URAT0,NORMAL COMM.
L
UART_SW3
L
L
UART_SW2
DBG_SW
EXT UART SWITCH
B 1 - A
B 0 - A
H
MTK - RS232C ADJ.
MTK - PHONE JK. DEBUG
B 1 - A
B 0 - A
MTK - NEC_UART3,NEC USB D/L
B 1 - A
H
RS232C - NEC_UART3,INTERACTIVE
MTK - NEC_UART3,NEC USB D/L
B 0 - A
CONNECTION
H
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