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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.

EMMC_DATA[7]

EMMC_DATA[6]

EMMC_DATA[4]

EMMC_DATA[2]

EMMC_DATA[3]

EMMC_DATA[5]

MODEL_OPT_2

STB_SCL

SOC_RX

C116
0.1uF

R150
1K

MODEL_OPT_0

R147
1K

OPT

R155
10K

R166
2.7K
OPT

EMMC_CLK

R151
1K

OPT

OSDA0

L/DIM0_MOSI

OSDA1

+3.3V_NORMAL

MODEL_OPT_8

MODEL_OPT_6

R148
1K

SOC_TX

L/DIM0_VS

R103

4.7K

EMMC_DATA[2-7]

R168

4.7K
OPT

R157
4.7K

OPT

R158

33

OPT

MODEL_OPT_1

MODEL_OPT_1

LED_PWM0

MT5369_XTAL_OUT

I2C_SDA5

MT5369_XTAL_IN

AVDD_33SB

MODEL_OPT_5

A_DIM

AVDD_33SB

MODEL_OPT_3

R105

4.7K

OPT

MODEL_OPT_10

L/DIM0_SCLK

R153
1K

OPT

LED_PWM1

C118
0.1uF

OSCL0

VDD3V3

LED_PWM1

R136

33

MODEL_OPT_5

MODEL_OPT_3

MODEL_OPT_0

+3.3V_NORMAL

ERROR_OUT

MODEL_OPT_7

MODEL_OPT_6

+3.3V_NORMAL

IC104

AT24C256C-SSHL-T

NVRAM_ATMEL

3

A2

2

A1

4

GND

1

A0

5

SDA

6

SCL

7

WP

8

VCC

MODEL_OPT_9

R174

10K

OPCTRL3

EMMC_CLK

R169

10K

OPT

R171

22

R170

22

OSCL1

PWM_DIM2

R137

33

R161
4.7K

OPT

R178

4.7K

OPT

PWM_DIM1

LED_PWM0

MODEL_OPT_7

+3.3V_NORMAL

IR

R154
1K

C117
0.1uF

I2C_SCL5

+3.3V_NORMAL

STB_SDA

X100

27MHz

MT5369_XTAL_OUT

MT5369_XTAL_IN

R139
2.7K

OSDA2

I2C_SDA2

R117

33

+3.3V_NORMAL

R115

33

I2C_SDA6

R188
2.7K

I2C_SCL4

I2C_SDA4

OSCL2

I2C_SCL5

R122

33

R160
2.7K

R116

33

I2C_SDA5

R142
2.7K

OSCL0

I2C_SCL2

STB_SDA

R111

33

R123

33

R134
2.7K

I2C_SDA1

I2C_SCL3

R114

33

R110

33

OSCL1

I2C_SCL6

I2C_SDA3

R113

33

R164
2.7K

OSDA1

R173
2.7K

R156
2.7K

R118

33

R185
2.7K

OSDA0

R177
2.7K

R112

33

I2C_SCL1

R121

33

STB_SCL

R176

10K

M_RFModule_RESET

R162

10K

R163

10K

/TU_RESET

EXT_SPK_DET

M_RFModule_ISP

AV1_CVBS_DET

OPCTRL3

DSUB_DET

OPCTRL_1_SCL

OPCTRL_11_SCL

/S2_RESET

R140

4.7K

MTK_DVB_T2_TUNER

R106

4.7K

MTK_Int_FRC/URSA5

R135

4.7K

MTK_CP_BOX

R101

4.7K

MTK_FRC3/URSA5

R189

4.7K

MTK_EPI

R186

4.7K

MTK_DVB_C2_TUNER

R125

4.7K

MTK_OPTIC_Tx_IC

R130

4.7K

MTK_3D_DEPTH_IC

R108

4.7K

MTK_FHD

R175

4.7K

MTK_DVB_S_TUNER

R132

4.7K

MTK_DDR_768MB

R190

4.7K

MTK_NON_EPI

R127

4.7K

MTK_NON_OPTIC_Tx_IC

R133

4.7K

MTK_DDR_DEFAULT

R129

4.7K

MTK_NON_3D_DEPTH_IC

R141

4.7K

MTK_NON_DVB_T2_TUNER

R102

4.7K

MTK_NO_FRC/Int_FRC

R138

4.7K

MTK_NON_CP_BOX

R109

4.7K

MTK_HD

R187

4.7K

MTK_NON_DVB_C2_TUNER

R184

4.7K

MTK_NON_DVB_S_TUNER

R107

4.7K

MTK_NO_FRC/FRC3

OPCTRL_0_SDA

OPCTRL_10_SDA

OPCTRL_1_SCL

OPCTRL_11_SCL

OPCTRL_0_SDA

OPCTRL_10_SDA

C101

0.1uF

16V

R191

22

+3.3V_NORMAL

R192

22

I2C_SCL1

R181

4.7K

I2C_SDA1

+3.3V_NORMAL

+3.3V_NORMAL

R159

4.7K

C120
2.2uF
10V

OPT

R193

10K

/S2_RESET

R128
1.2K

R131
1.2K

EMMC_DATA[0]

EMMC_DATA[1]

EMMC_CMD

R119

0

IC104-*1

M24256-BRMN6TP

NVRAM_ST

3

E2

2

E1

4

VSS

1

E0

5

SDA

6

SCL

7

WC

8

VCC

C115
24pF

C113
24pF

AMP_RESET_SOC

IC105

LGE2112

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

J32

GPIO16

J34

GPIO17

K34

GPIO18

K35

GPIO19

K37

GPIO20

J36

GPIO21

J37

GPIO22

J35

GPIO23

J33

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

IC104-*2

R1EX24256BSAS0A

NVRAM_RENESAS

3

A2

2

A1

4

VSS

1

A0

5

SDA

6

SCL

7

WP

8

VCC

R179

22

RESET_BY_CPU

TS_S_OUT_DATA

TS_S_OUT_VAL

TS_S_OUT_CLK

TS_S_OUT_SYNC

R1005

22

R1006

22

R1007

22

R1008

22

TS_S_IN_0_CLK

TS_S_IN_0_VAL

TS_S_IN_0_SYNC

TS_S_IN_0_DATA

TS_S_IN_1_CLK

TS_S_IN_1_VAL

TS_S_IN_1_SYNC

TS_S_IN_1_DATA

PTC_RX_MTK_3.3V

PTC_TX_MTK

/UPDATE_BY_CPU

/PROIDIOM_RESET_SOC

/LGDT3305_RESET

C106

0.1uF

OPT

C102

0.1uF

OPT

/USB2SER_RESET

R197
1K

PWM1_PULL_DOWN_1K

R198
1K

PWM2_PULL_DOWN_1K

USB_CTL1

/USB_OCD1

R1009

0

R1010

100

MDS62110213

M22

MTK_H/S_3.5T

MDS62110213

M20

MTK_H/S_3.5T

MDS62110213

M21

MTK_H/S_3.5T

MDS62110213

M23

MTK_H/S_3.5T

/USB_OCD2

USB_CTL2

C122

0.1uF

OPT

C121

0.1uF

OPT

P100

12507WS-12L

JTAG

1

2

3

4

5

6

7

8

9

10

11

12

13

AR100
10K

JTAG

JTCLK

JTDO

JTMS

R152
1K

JTAG

+3.3V_NORMAL

R144
10K

JTAG

R143

33

JTAG

R145
10K

JTAG

JTDI

JTRST#

R146
10K

JTAG

+3.3V_NORMAL

+3.3V_NORMAL

R149
10K

JTAG

JTDO

JTCLK

JTRST#

JTDI

JTMS

/TU_RESET_1

R1012 OPT

0

R1013

OPT

0

MDS62110214

M24

MTK_H/S_9.5T

IC100

M24C16-R 

HDCP_EEPROM_ST

3

NC_3

2

NC_2

4

VSS

1

NC_1

5

SDA

6

SCL

7

WC

8

VCC

IC100-*1

24LC16B

HDCP_EEPROM_MICRO

3

A2

2

A1

4

VSS

1

A0

5

SDA

6

SCL

7

WP

8

VCC

OPC_EN

R1016

100

OPT

Q1001

MMBT3904(NXP)

E

B

C

SOC_RESET

C114

0.1uF
16V

OPT

R1002

10K

R172

22

OPT

R1001

100

LAN1_DET

LAN2_DET

R104

4.7K

OPT

R1004

100

OPT

R1011

100 OPT

C108
2.2uF
10V

C107
2.2uF
10V

HDMI_CEC_MTK

EXT_PWR_DET

R1015

100

EXT_PWR_DET

R1014

0

OPT

PTC_WOL

C113-*1
8pF
50V

12pF crystal

X100-*1
27.0MHZ

12pF Crystal

C115-*1
8pF
50V

12pF crystal

8

MID_MAIN_1

2011.09.29

LG FRC2

3D DEPTH

T2 Tuner

MODEL OPTION 8 is just for CP Box
It should not be appiled at MP

NON_3D_Depth_IC

S Tuner

SoC
internal
FRC

NON_OPTIC

MODEL_OPT_9

OPTIC

1

MODEL_OPT_7

MODEL_OPT_3

Support

FHD

Write Protection

- Low  : Normal Operation
- High : Write Protection

Disable

Reserved

DDR_768MB

EPI

Reserved

MODEL_OPT_2

DDR

MODEL_OPT_6

HIGH

MODEL_OPT_8

MODEL_OPT_0

Not Support

Default

1

Not Support

CP BOX

MODEL_OPT_5

0

0

Support

Enable

LOW

1

NO_FRC

NVRAM

Model Option

0

Close to eMMC Flash
(IC8100)

MODEL_OPT_10

0

HD

STRAPPING                                   LED_PWM0        LED_PWM1          OPCTRL3

ICE mode + 27M + Serial boot                    0              0                 0               

ICE mode + 27M + ROM to Nand boot               0              0                 1

ICE mode + 27M + Rom to eMMC boot               0              1                 0
 from eMMC pins (share pins w/s NAND)

ICE mode + 27M + ROM to eMMC boot               0              1                 1
 from SDIO pins 

DDR_Default

MODEL_OPT_1

1

MODEL_OPT_4

3D_Depth_IC

X-TAL

I2C

I2C_1 : AMP, L/DIMMING
I2C_2 : T-CON
I2C_3 : MICOM
I2C_4 : S/Demod,T2/Demod, LNB
I2C_5 : NVRAM, HDCP KEY
I2C_6 : TUNER_MOPLL(T/C,ATV)

M_RFModule_ISP

HDCP EEPROM

Support

Not Support

5V Tolerance

MODEL_OPT_4

MODEL_OPT_4

Crystal Matching Test result
: 27pF -> 20pF -> 24pF

EAX6430790* : LD22* / LC22*
EAX6443420* : LT22* / LJ22* / LA22* / LB22*

SOC -> P:I

SOC <- Ext. Demod.

SOC <- P:I

PTC Interface

xxLT760H-UA

JTAG

To HDMI

12pF crystal & load cap.

Copyright ⓒ 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only 

Содержание 42LT777H-UA

Страница 1: ...EL 42LT777H 42LT777H UA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED LCD TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Страница 2: ... LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 ADJUSTMENT INSTRUCTION 9 TROUBLESHOOTING 25 BLOCK DIAGRAM 26 EXPLODED VIEW 27 SCHEMATIC CIRCUIT DIAGRAM ...

Страница 3: ...inals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed m...

Страница 4: ...stment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC specification 4 General Specification No Item Specification Remark 1 Receiving System 1 ATSC NTSC M 64 256 QAM 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5 CADTV 01 135 3 Input Voltage 1 AC 100 240V 50 60Hz Mark 110V 60Hz N America 4 Market...

Страница 5: ... 31 469 59 94 25 17 Side by Side Top and Bottom 5 3 HDMI 2D Input PC DTV No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed DDC PC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 469 70 08 28 32 DOS O 3 640 480 31 469 59 94 25 17 VESA VGA O 4 800 600 37 879 60 31 40 00 VESA SVGA O 5 1024 768 48 363 60 00 65 00 VESA XGA O 6 1360 768 47 712 60 015 85 50 VESA WXGA X 7 1280 1024 63 981 60 020...

Страница 6: ...rame packing Field alternative Primary HDTV 1080I HDTV 1080I HDTV 1080I Secondary HDTV 1080I Primary HDTV 1080I 33 72 33 75 148 35 148 5 Side by side Full 74 17 74 25 Top and Bottom Side by side half 5 1920 1080 53 946 54 23 976 24 148 351 148 5 Frame packing Line alternative Primary HDTV 1080P HDTV 1080P HDTV 1080P Primary HDTV 1080P Primary HDTV 1080P 26 973 27 148 351 148 5 Side by side Full 74...

Страница 7: ...1080 27 00 24 00 74 25 HDTV 1080P Side by Side Top Bottom Checkerboard 5 1920 1080 33 75 30 00 74 25 HDTV 1080P Side by Side Top Bottom Checkerboard No Side by Side Top Bottom Checkerboard Single Frame Sequential Frame Packing 2D to 3D 1 5 6 USB Input OPTION 5 6 1 3D Auto detection No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode Proposed 1 1920 1080 33 75 30 000 74 25 Si...

Страница 8: ...V 1080I Side by Side Top Bottom 5 8 DLNA Input OPTION 5 8 1 3D Auto detection No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode Proposed 1 1920 1080 33 75 30 000 74 25 Side by Side Top Bottom Checkerboard HDTV 1080P 5 8 2 3D Manual No Resolution H freq kHz V freq kHz Pixel clock MHz 3D input proposed mode Proposed 1 1920 1080 33 75 30 000 74 25 Side by Side Top Bottom Chec...

Страница 9: ...cale is strong Digital pattern 13ch and or Cross hatch pattern 09ch there can some afterimage in the black level area 3 Adjustment items 3 1 Main PCBA Adjustments 1 ADC adjustment Component 480i 1080p RGB PC 1080p 2 EDID downloads for HDMI and RGB PC 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting per destination 4 Shipment mode setti...

Страница 10: ...ection with PCB Network setting at MENU Mode of TV Installer Menu 119 253 Menu setting automatic IP Setting state confirmation If automatic setting is finished you confirm IP and MAC Address 4 4 LAN PORT INSPECTION PING TEST 4 4 1 Equipment setting 1 Play the LAN Port Test PROGRAM 2 Input IP set up for an inspection to Test Program IP Number 12 12 2 2 4 4 2 LAN PORT inspection PING TEST 1 Play the...

Страница 11: ... d Check the model name Instart menu Factory name displayed ex 47LM960V ZA e Check the Diagnostics DTV country only Buyer model displayed ex 47LM960V ZA 4 6 EDID Download 4 6 1 Overview It is a VESA regulation A PC or a MNT will display an optimal resolution through information sharing without any necessity of user input It is a realization of Plug and Play 4 6 2 Equipment 1 Since EDID data is emb...

Страница 12: ...lance Adjustment 5 1 1 Overview 5 1 1 1 W B adj Objective How it works 1 Objective To reduce each Panel s W B deviation 2 How it works When R G B gain in the OSD is at 192 it means the panel is at its Full Dynamic Range In order to prevent saturation of Full Dynamic range and data one of R G B is fixed at 192 and the other two is lowered to find the desired value 3 Adj condition normal temperature...

Страница 13: ...04 Gray 80IRE 2 Standard color coordinate and temperature using CS 1000 over 26 inch 5 1 7 Reference White Balance Adj coordinate and color temperature LT Series don t use G Gain fix 172 Luminance 204 Gray Standard color coordinate and temperature using CS 1000 over 26 inch Mode Coordinate Temp uv X Y Cool 0 269 0 273 13 000K 0 0000 Medium 0 285 0 293 9 300K 0 0000 Warm 0 313 0 329 6 500K 0 0000 S...

Страница 14: ...he TV Step 2 Press EYE button on the adjustment remote controller Step 3 Cover Eye Q sensor on the front of set with your hands hold it for 6 seconds Step 4 Check the Sensor Data on the screen make certain that Data is below 10 If Data isn t below 10 in 6 seconds Eye Q sensor would be bad You should change Eye Q sensor Step 5 Uncover your hands from Eye Q sensor hold it for 6 seconds Step 6 Check ...

Страница 15: ... TEST program It s connected to MSHG 600 Remark Inspect in Power Only Mode and check SW version in a master equipment 6 Check Commercial features Model info Commercial Feature Name inch IR Out DC Power Out 12V Ext SPK Out RJP RJ 45 inter face Pro Idiom LT770H UA 32 37 42 47 55 O O O O O 6 1 External SPK Out 6 1 1 Equipment Condition Jig Speaker out JIG or Oscilloscope Power only mode 6 1 2 Check t...

Страница 16: ...ssage automatically scan pause 2 Adjust the remote control Press any Key IR Out Make sure that only Nomal LED blinks 3 ETC Key red Pressing the Info Key i 5V Out Output 3 seconds ii 5V output OFF iii 12V Out Output 3 seconds iv 12V output OFF Given the ST output time adjustable 4 Nomal LED 5V LED 12V LED flicker worker using the PASS 5 After the check is complete automatic test is initiated 6 3 RJ...

Страница 17: ...e left picture 2 Working procedure i Connection UTC 1000 LAN PC LAN Port UTC 1000 TOP1 Game port RJ21 TV LINK CFG Phone Jack UTC 1000 RF1 b LAN RF IN ii Power on JIG Switch on front of the JIG iii Test Start UTC 1000 TOP2 JIG 11pin Connection iv Checking b LAN MAC Address Check whether it is same their address numbers or not between b LAN Label and on the pc address numbers Checking JIG contents 1...

Страница 18: ...atically 8 3 Checkpoint 1 Test voltage GND 1 5KV min at 100mA SIGNAL 3KV min at 100mA 2 TEST time 1 second 3 TEST POINT GND Test POWER CORD GND and SIGNAL CABLE GND Hi pot Test POWER CORD GND and LIVE NEUTRAL 4 LEAKAGE CURRENT At 0 5mArms 9 USB S W Download Optional Service only 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program vers...

Страница 19: ...ation is successful ADC RGB Success is displayed If ADC calibration is failure ADC RGB Fail is displayed 12 If ADC calibration is failure after recheck ADC pattern or condition retry calibration 10 2 Manual White balance Adjustment 10 2 1 Adj condition and cautionary items 1 Lighting condition in surrounding area surrounding lighting should be lower 10 lux Try to isolate adj area into dark surroun...

Страница 20: ...ck power connector and RL_ON signal OK N Replace Power Board Check Q2407 application circuit Or replace Q2407 N Replace Cable N Check P2401All Voltage Level 3 5V 12V 24V Y N Check IC8701 RESETand UPDATE pin Y Check X8700 Clock 32 768KHz Y Check IC8701 IIC Communication status Y Check IR input state of IC8701 57pin Y Re download PTC Micom Check power connector and RL_ON signal OK N Replace Power Bo...

Страница 21: ...nalog RF Video Trouble Shooting guide Check RF cable signal Y Check TU8900 Pin5 Video output Y Check tuner 5V power R8953 Y Check tuner 3 3V power L8904 Y Check tuner 1 8V power IC8900 2pin 1 8V Y Check MTK LVDS output Replace Tuner N Check IC2404 Replace L8904 Replace IC8900 N N N Replace IC105 N Replace IC2404 N Y ...

Страница 22: ...rvice purposes Digital RF Trouble Shooting guide Check RF cable signal Check tuner 5V power R8953 Y Check IIC Signal TU8900 Pin 4 12 Y Check DIF Signal TU8900 Pin 6 14 Y Check X100 and application circuit Check IC2404 Replace TU8900 Replace TU8900 N N N Replace IC105 N Replace IC2404 N Y Replace X100 ...

Страница 23: ...in chip MTK have some troubles After checking thoroughly all path once again You should decide to replace MTK or not Replace JK3800 N Check input signal format Is it supported Y CheckAC cable for damage For damage or open conductor Y Check JK3301 JK3302 JK3303 Can you see the normal waveform Y Check HDCP key NVRAM IC100 Power I2C signal Y Check the input of MTK IC105 Measure waveform at R3314 R331...

Страница 24: ...form Y Check the input of MTK IC105 Measure waveform at R323 R324 because it s more easy to check Can you see the normal waveform Y This board has big problem because Main chip MTK have some troubles After checking thoroughly all path once again You should decide to replace MTK or not Replace JK3603 N Check RF cable signal Check TU8900 Pin2 SIF output Y CheckAudioAMP output L5402 L5403 L5404 L5405...

Страница 25: ... Y This board has big problem because Main chip MTK have some troubles After checking thoroughly all path once again You should decide to replace MTK or not Replace JK3800 N CheckAudioAMP output L5402 L5403 L5404 L5405 Replace L5402 L5403 L5404 L5405 N Y Check input signal format Is it supported Y CheckAC cable for damage For damage or open conductor Y Check JK3301 JK3302 JK3303 Can you see the no...

Страница 26: ... Ethernet RX TX CVBS SYSTEM EEPROM X 1 256Kb HDMI S W TS_S P LVDS 8bit 30P 51P S M ART b L AN Ethernet HUB IC Dmod IC RF M ain A V SIF Pro idiom RS 232C DEBUG PTC MICOM S W A V1 Demod MPI SPI Ext SPK AMP FHD HD HDMI1 CVBS Video Audio Video Audio Wi Fi Speaker I2S Out Audio AMP RJP RJ12 HDCP EEPROM PHY Chip IR Key LAN2 37 42 47 32 L R MDC MDIO MDC MDIO Rear Inteligent S ensor RX TX I2C I2C I2C Loca...

Страница 27: ...rts 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 LV1 300 200 540 521 530 800 550 810 120 500 501 510 400 900 910 A2 A2...

Страница 28: ... 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_TSD...

Страница 29: ... HDMI_0_RX_0 AG35 HDMI_0_RX_0B AG34 HDMI_0_RX_1 AG37 HDMI_0_RX_1B AG36 HDMI_0_RX_2 AF35 HDMI_0_RX_2B AF34 HDMI_0_RX_C AH35 HDMI_0_RX_CB AH34 HDMI_1_RX_0 AE37 HDMI_1_RX_0B AE36 HDMI_1_RX_1 AD35 HDMI_1_RX_1B AD34 HDMI_1_RX_2 AC35 HDMI_1_RX_2B AC34 HDMI_1_RX_C AE35 HDMI_1_RX_CB AE34 HDMI_2_RX_0 AB35 HDMI_2_RX_0B AB34 HDMI_2_RX_1 AA35 HDMI_2_RX_1B AA34 HDMI_2_RX_2 AA37 HDMI_2_RX_2B AA36 HDMI_2_RX_C AC...

Страница 30: ...DVSS_62 R20 DVSS_73 T20 DVSS_83 U20 DVSS_92 V20 DVSS_104 W20 DVSS_117 Y20 DVSS_127 AA20 DVSS_137 AB20 DVSS_29 G16 DVSS_63 R21 DVSS_74 T21 DVSS_84 U21 DVSS_93 V21 DVSS_105 W21 DVSS_118 Y21 DVSS_128 AA21 DVSS_138 AB21 DVSS_64 R22 DVSS_75 T22 DVSS_85 U22 DVSS_94 V22 DVSS_106 W22 DVSS_119 Y22 DVSS_129 AA22 DVSS_139 AB22 DVSS_65 R23 DVSS_76 T23 DVSS_86 U23 DVSS_140 AB23 DVSS_96 W6 DVSS_30 G17 DVSS_27 F...

Страница 31: ..._5 K8 VDD_6 N1 VDD_7 N9 VDD_8 R1 VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 NC_7 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 VSSQ_5 E2 VSSQ_6 E8 VSSQ_7 F9 VSSQ_8 G1 VSSQ_9 G9 C716 0 1uF C714 0 1uF C715 ...

Страница 32: ... 2uH C2400 10uF 16V POWER_ON OFF1 R2406 10K 1 C2403 0 1uF 16V OPT C2404 0 1uF 16V IC2400 AOZ1038PI 3 AGND 2 VIN 4 FB 1 PGND 5 COMP 6 EN 7 NC_1 8 NC_2 9 EP LX 12V C2414 10uF 10V C2409 10uF 10V C2408 10uF 10V C2407 10uF 10V 1 2V_MTK_CORE L2400 BLM18PG121SN1D C2445 22pF 50V C2434 0 1uF 50V 12V 3 3V_NORMAL C2431 10uF 16V R2428 10K 1 C2438 1uF 10V C2437 0 1uF C2442 22uF 10V C2439 3300pF 50V R2414 10K C...

Страница 33: ...3 CEC 5 TMDS_DATA1_SHIELD 20 BODY_SHIELD 12 TMDS_CLK 11 TMDS_CLK_SHIELD 2 TMDS_DATA2_SHIELD 19 HOT_PLUG_DETECT 18 VDD 5V 10 TMDS_CLK 4 TMDS_DATA1 1 TMDS_DATA2 17 DDC CEC_GND 9 TMDS_DATA0 8 TMDS_DATA0_SHIELD 3 TMDS_DATA2 16 SDA 7 TMDS_DATA0 6 TMDS_DATA1 15 SCL D3302 MMBD6100 A2 C A1 D3301 MMBD6100 A2 C A1 D3303 MMBD6100 A2 C A1 HDMI_ARC R3300 0 R3341 0 D1 _HDMI4_JACK D2 _HDMI4_JACK CK _HDMI4_JACK D...

Страница 34: ... E0 5 SDA 6 SCL 7 WC 8 VCC D3620 MMBD6100 A2 C A1 D3623 5 6V D3622 5 5V ADUC 5S 02 0R5L OPT D3621 5 5V ADUC 5S 02 0R5L OPT D3613 5 5V ADUC 5S 02 0R5L OPT JK3603 SPG09 DB 010 1 RED 2 GREEN 3 BLUE 4 GND_1 5 DDC_GND 6 RED_GND 7 GREEN_GND 8 BLUE_GND 9 NC 10 SYNC_GND 11 GND_2 12 DDC_DATA 13 H_SYNC 14 V_SYNC 15 DDC_CLOCK 16 SHILED JK3602 2F01TC1 CLM97 4F 3 VIN 2 VCC 1 GND 4 SHIELD D3625 5 6V Diode_OLD P...

Страница 35: ...100 3 5V_ST EXT_12V 3 5V_ST RS232_RX RS232_TX D3804 20V OPT D3805 20V OPT L3802 EXT_5V L3801 SS_OLD L3800 OPT EXT_5V R3806 1K AV1_CVBS_IN R3803 2 7K JK3800 PPJ233 01 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 3 3V_NORMAL AV1_R_IN AV1_CVBS_DET C3804 0 1uF D3803 50V BAP70 02 R3834 1K D3800 5 6V D3801 5 6V D3802 5 6V JP3800 JP3801 JP3802 JP3...

Страница 36: ... 47K OPT C4102 0 1uF C4100 0 1uF R4114 100 P4102 12507WR 10L 1 2 3 4 5 6 7 8 9 10 11 D4101 5 6V AMOTECH R4125 1 5K OPT D4100 5 6V AMOTECH R4126 1 5K L4100 BLM18PG121SN1D C4107 100pF 50V D4106 5 6V CDS3C05HDMI1 C4101 0 1uF 16V D4104 5 6V AMOTECH R4124 100 C4103 0 1uF 16V OPT LED_W LG_LOGO D4105 5 6V CDS3C05HDMI1 KEY2 R4123 100 KEY1 R4113 100 I2C_SDA2 I2C_SCL2 3 5V_ST C4104 1000pF 50V LED_R C4108 10...

Страница 37: ..._REMOTE C4313 0 1uF 16V M_REMOTE R4310 10K M_REMOTE C4312 0 1uF 16V M_REMOTE C4310 0 01uF 25V M_REMOTE C4311 0 1uF 16V M_REMOTE JK4303 3AU04S 345 ZC H LG 1 2 3 4 5 R4329 10K C4328 0 1uF C4327 1uF 10V C4333 22uF 10V C4326 0 1uF 50V C4334 22uF 10V C4329 3300pF 50V R4328 100K L4305 BLM18PG121SN1D C4332 22pF 50V R4344 10K IC4305 TPS54425PWPR 3 VREG5 2 VFB 4 SS 1 VO 6 PG 5 GND 7 EN 8 PGND1 9 PGND2 10 S...

Страница 38: ...HEMETIC M_RFModule_ISP M_REMOTE_RX M_REMOTE_TX 3 3V_NORMAL L4800 120 ohm M_REMOTE M_RFModule_RESET C4800 0 1uF P4800 12507WR 08L M_REMOTE 1 3 3V 2 GND 3 RX 4 TX 5 RESET 6 DC 7 DD 8 GND 9 AR4800 100 1 16W M_REMOTE 3D_SYNC_RF 3D_SYNC_RF M_REMOTE_TX M_REMOTE_RX ZigBee_Radio Pulse M_REMOTE OPTION ALL M_REMOTE OPTION 48 MOTION REMOTE 2011 06 04 Only For PDP xxLT760H UA Copyright ⓒ 2013 LG Electronics I...

Страница 39: ...1D 24V_AMP SPK_R C5431 390pF 50V 24V_AMP D5403 100V 1N4148W OPT C5414 10uF 10V OPT R5408 12 C5433 1uF 25V L5404 NRS6045T100MMGK 10 0uH SPK_L C5435 0 47uF 50V C5428 1uF 25V I2C_SCL1 C5409 10uF 10V SPK_L P5400 WAFER ANGLE 1 2 3 4 AMP_MUTE 0 1uF C5439 50V C5417 22000pF 50V R5400 10K R5410 12 SPK_R 0 1uF C5412 16V 24V C5410 10uF 10V OPT 0 1uF C5420 50V SPK_L C5424 0 01uF 50V OPT L5400 CIS21J121 SS_OLD...

Страница 40: ...2N 17 RA2P 18 GND 19 RACLKN 20 RACLKP 21 GND 22 RA3N 23 RA3P 24 RA4N 25 RA4P 26 GND 27 BIT_SEL 28 RB0N 29 RB0P 30 RB1N 31 RB1P 32 RB2N 33 RB2P 34 GND 35 RBCLKN 36 RBCLKP 37 GND 38 RB3N 39 RB3P 40 RB4N 41 RB4P 42 GND 43 GND 44 GND 45 GND 46 GND 47 NC 48 VLCD 49 VLCD 50 VLCD 51 VLCD 52 GND TXA0N TXACLKN TXA1P TXACLKP TXA2N P7101 FF10001 30 LVDS_30PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2...

Страница 41: ...NENTS IN THE SYMBOL MARK OF THE SCHEMETIC I2C_SCL1 L DIM0_SCLK R7601 10K LOCAL_DIM 3 3V_NORMAL L DIM0_MOSI R7607 4 7K LOCAL_DIM R7606 33 LOCAL_DIM P7600 12507WR 08L LOCAL_DIM 1 2 3 4 5 6 7 8 9 I2C_SDA1 L DIM0_VS R7600 10K OPT AR7600 33 1 16W LOCAL_DIM JP7605 JP7606 LOCAL DIMMING To LED DRIVER 76 LOCAL DIMMING 2011 04 30 xxLT760H UA Copyright ⓒ 2013 LG Electronics Inc All right reserved Only for tr...

Страница 42: ...N10 NC_110 N11 NC_111 N12 NC_112 N13 NC_113 N14 NC_114 P1 NC_115 P2 NC_117 P8 NC_118 P9 NC_120 P11 NC_121 P12 NC_122 P13 NC_123 P14 DUMMY_1 DU1 DUMMY_2 DU2 DUMMY_3 DU3 DUMMY_4 DU4 DUMMY_5 DU5 DUMMY_6 DU6 DUMMY_7 DU7 DUMMY_8 DU8 DUMMY_9 DU9 DUMMY_10 DU10 DUMMY_11 DU11 DUMMY_12 DU12 DUMMY_13 DU13 DUMMY_14 DU14 DUMMY_15 DU15 DUMMY_16 DU16 IC8100 2 KLM2G1HE3F B001 SAMSUNG_EMMC_2GB DAT0 A3 DAT1 A4 DAT2...

Страница 43: ...n I2C_SDA4_blan R8205 100 OPT R8206 100 OPT LD8200 3 3V_3305 C8211 0 22uF R8208 470 R8217 OPT R8207 100 3305_IF_AGC C8206 0 01uF IC8200 LGDT3305 1 NC_1 2 VINA2 3 VINA1 4 INCAP 5 VSSAAD10A 6 I2CSEL 7 ANTCON 8 VDD_1 9 I2CRPT_SCL 10 I2CRPT_SDA 11 IFOUT 12 RFOUT 13 TPERR 14 VDD33_1 15 TPVALID 16 TPDATA 0 17 VSS33_1 18 TPDATA 1 19 TPDATA 2 20 TPDATA 3 21 TPDATA 4 22 TPDATA 5 23 TPDATA 6 24 TPDATA 7 25 ...

Страница 44: ...ER 91 LED_ADD 4 DISTAGPRI 92 LED_ACT 4 DISHOMEPLUG 93 LED_SPD 4 DISVLAN 94 DGND_5 95 LED_DUP 4 SETGROUP 96 LED_ADD 3 MODESET1 97 LED_ACT 3 EN48PASS1 98 LED_SPD 3 DISARP 99 LED_DUP 3 MODESET0 100 DVDD18_4 101 LED_ADD 2 DISLEAKY 102 DGND_6 103 LED_ACT 2 P4ANEG 104 LED_SPD 2 GXANEG 105 LED_DUP 2 GYANEG 106 DVDD33_3 107 LED_ADD 1 GXSPD100 108 LED_ACT 1 GYSPD100 109 LED_SPD 1 GXFULL 110 LED_DUP 1 GYFUL...

Страница 45: ...P_L_IN C8609 0 1uF C8608 22uF 16V R8611 1K 5V_SUB_AMP Q8601 MMBT3904 NXP E B C IC8601 TPA6011A4PWPRG4 3 PVDD_1 2 ROUT 4 RHPIN 1 PGND_1 6 RIN 5 RLINEIN 7 VDD 8 LIN 9 LLINEIN 10 LHPIN 11 PVDD_2 12 LOUT 13 PGND_2 14 LOUT 15 SHUTDOWN 16 FADE 17 BYPASS 18 AGND 19 SEMAX 20 SEDIFF 21 VOLUME 22 HP LINE 23 SE BTL 24 ROUT 5V_SUB_AMP C8612 1uF 25V L8605 BLM18PG121SN1D EXT_AMP_R_IN 5V_SUB_AMP R8609 100 OPT EX...

Страница 46: ...707 2SC3875S ALY E B C Q8717 2SC3875S ALY E B C P8700 YFDW254 14S JTAG_PTC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ZD8702 5 1V ZD8701 5 1V KEY1 R8733 0 C8705 0 01uF ZD8706 3 6V R87010 0 Q8701 2SC3875S ALY E B C R87032 10 R8786 0 OPT 3 5V_ST D8701 BAT54C A2 C A1 Q8713 2SC3875S ALY E B C C8706 0 01uF R87030 470 R8715 100 R8730 5 1K RJP_CTRL2_buffer R8701 1K R87082 10K R87044 330 C8712 20pF OPT R8773 100 C8...

Страница 47: ..._5 0T MDS62110210 M11 1 GASKET_5 0T MDS62110210 M10 1 GASKET_5 0T MDS62110210 M9 1 GASKET_5 0T MDS62110210 M12 1 GASKET_5 0T MDS62110206 M2 3 GASKET_6 5T MDS62110206 M4 3 GASKET_6 5T MDS62110206 M3 3 GASKET_6 5T MDS62110206 M8 3 GASKET_6 5T MDS62110206 M7 3 GASKET_6 5T MDS62110206 M6 3 GASKET_6 5T MDS62110206 M5 3 GASKET_6 5T MDS62110206 M12 3 GASKET_6 5T MDS62110206 M11 3 GASKET_6 5T MDS62110206 ...

Страница 48: ...2C_SDA4_blan R8916 100 OPT 12V D8912 MBRA340T3G SMART_b LAN 12V_ST D8911 MBRA340T3G SMART_b LAN 12V_C C8918 1uF 25V SMART_b LAN C8920 0 1uF OPT TU_RESET_1 R8942 100K OPT R8941 100 OPT 3 3V_TU TU_RESET C8926 0 1uF 3 3V_TU R8949 100K R8950 100 3 3V_TU R8945 4 7K TUNER_SIF Q8906 MMBT3906 NXP E B C 5V_TU R8943 470 R8944 82 C8921 0 1uF 16V C8923 0 1uF 16V C8924 0 1uF 16V 1 8V_TU L8903 BLM18PG121SN1D C8...

Страница 49: ...R9049 0 NON_LAN2_HUB R9050 0 NON_LAN2_HUB R9047 0 NON_LAN2_HUB C9024 0 1uF LAN2_HUB R9051 49 9 1 LAN2_HUB R9052 49 9 1 LAN2_HUB R9053 49 9 1 LAN2_HUB C9025 0 1uF LAN2_HUB R9054 49 9 1 LAN2_HUB ETNHUB_AVDD18 L9003 BLM18PG121SN1D LAN2_HUB LAN_LINK3 LAN_ACT3 R9055 0 LAN2_HUB R9056 0 LAN2_HUB R9057 0 NON_LAN2_HUB R9058 0 NON_LAN2_HUB ETNHUB_EPHY_RXIN1 ETNHUB_EPHY_TXOP1 ETNHUB_EPHY_RXIP1 ETNHUB_EPHY_TX...

Страница 50: ...9100 APX803D29 EXT_PWR_DET 1 GND 3 VCC 2 RESET C9110 0 1uF 50V R9116 12K 1 EXT_5V D9101 EXT_PWR_DET A2 C A1 R9114 20K 1 16W 1 C9113 0 1uF 50V R9112 11K 1 EXT_5V IC9102 MP4460DQ LF Z 3 EN 2 SW_2 4 COMP 1 SW_1 5 FB 6 GND 7 FREQ 8 VIN_1 9 VIN_2 10 BST 11 EP_GND C9112 100pF EXT_5V L9104 3 6uH NR8040T3R6N EXT_5V EXT_12V C9105 470pF 50V R9108 200 EXT_PWR_DET EXT5V_CTRL R9107 150K R9110 100K C9104 0 1uF ...

Страница 51: ...4 IO3_16 L15 IO3_17 L16 IO3_18 K16 IO3_19 K15 IO3_20 J16 IO3_21 H16 CLK3 G16 CLK2 H12 IO3_22 G14 IO3_23 G13 IO3_24 G15 IO3_25 F16 IO3_26 F14 IO3_27 F13 IO3_28 F15 IO3_29 E16 IO3_30 E15 IO3_31 D16 IO3_32 D15 IO3_33 F12 IO3_35 E13 IO3_36 H13 IO3_38 G12 IO3_39 B16 IO3_40 C15 IO3_41 C14 IO3_42 D13 IO3_43 B15 IO2_1 A15 IO2_2 B14 IO2_3 C13 IO2_4 B13 IO2_5 A13 IO2_6 B12 IO2_7 A2 IO2_47 E12 IO2_9 E11 IO2_...

Страница 52: ......

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