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Skyworth 8M26S, Service Manual

The Skyworth 8M26S Service Manual is essential for users seeking a comprehensive guide to maximize the potential of their device. Downloadable for free from 88.208.23.73:8080, this manual covers every aspect of the product, ensuring smooth operations and troubleshooting. Unlock the full potential of your Skyworth 8M26S with this manual.

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5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

HDMI2-RX1+

5V_HDMI_HOT

HDMI2-RX2-

HDMI2-RX1-

HDMI2-RX0+

HDMI2-RX0-

HDMI2-RXC+

HDMI2-RXC-

SDA2

SCL2

HDMI-CEC

CEC

HDMI1-RX1P

HDMI1-RX2N

HDMI1-RX1N

HDMI1-RX0P

HDMI1-RX0N

HDMI1-CLKP

HDMI1-CLKN

HDMI1-RX2P

HDMI2-RX2+

CEC

ARC

HDMI1-SCL

HDMI1-SDA

ARC

HDMI2-RX2+

HDMI2-RX2-

HDMI2-RX1+

HDMI2-RX1-

HDMI2-RX0+

HDMI2-RX0-

HDMI2-RXC+

HDMI2-RXC-

HPD_SINK

HDMI_HP1

IN2D1-

IN2D1+

VCC_HDMI_SW

IN2D2-

IN2D2+

POW1

HPD1

SDA1

SCL1

VCC_HDMI_SW

IN1D0-

VCC_HDMI_SW

IN1CLK-

IN1D1-

GND

IN1D0+

GND

IN1D1+

SDA_CTL

SCL_CTL

HDMI1-SDA

IN1D2-

IN1D2+

HDMI1-SCL

HPD2

MI2C-SDA

MI2C-SCL

VCC_HDMI_SW 
HDMI1-RX1P

HDMI1-RX2N

HDMI1-RX2P

SCL_CTL

SDA_CTL

HDMI1-SDA

HDMI1-SCL

HDMI1-CLKN

HDMI1-CLKP

HDMI1-RX0N 
HPD_SINK

GND 
HDMI1-RX0P

HDMI1-RX1N

HPD3

SDA2

SDA3

SCL3

IN3CLK-

POW3

IN3D0-

SCL2

IN3D0+

GND

IN3D1-

IN3D1+

VCC_HDMI_SW

IN3D2-

IN2CLK-

IN2D1+

IN2D2+

IN2D1-

IN3D2+

IN2D2-

IN2D0-

IN2D0+

IN2CLK-

POW2

IN2D0-

IN2D0+

GND

HDMI1-CLKP

HDMI1-CLKN

HDMI1-RX1P

HDMI1-RX2P

HDMI1-RX1N

HDMI1-RX2N

HDMI1-RX0N

HDMI1-RX0P

HPD2

SCL2

IN2CLK-

IN2D1+

IN2D2+

IN2D1-

IN2D2-

IN2D0-

IN2D0+

SDA2

HPD_SINK

HDMI1-SCL

HDMI1-SDA

HPD2

HDMI1-RX2-

HDMI1-RX1+

HDMI1-RX1+

HDMI1-RX2-

HDMI1-RX1-

HDMI1-RX0+

HDMI1-RX0-

HDMI1-RXC+

HDMI1-RXC-

SDA1

SCL1

HDMI1-RX1-

HDMI1-RX2+

HDMI1-RX0+

CEC

HDMI1-RX0-

HDMI1-RXC+

HDMI1-RXC-

HPD1

IN1CLK-

IN1D1+

IN1D2+

IN1D1-

IN1D2-

IN1D0-

IN1D0+

HDMI1-RX2+

HDMI2-HPD

HDMI1-HPD

CEC

POW2POW2

POW1POW1POW1

POW2

VCC_HDMI_SW

VCC_HDMI_SW

HDMI2_5V

VCC_HDMI_SW

VCC_HDMI_SW

VCC_HDMI_SW

HDMI1_5V

HDMI2_5V

3.3V_HDMI

+5V_Normal

+5V_Normal

HDMI2_5V

5V_HDMI_HOT

+5V_Normal

HDMI1_5V

HDMI1_5V

5V_HDMI_HOT

HDMI1-RX2P

HDMI1-RX2N

HDMI1-RX1P

HDMI1-RX1N

HDMI1-RX0P

HDMI1-RX0N

HDMI1-CLKP

HDMI1-CLKN

HDMI-CEC

HDMI1-SCL

HDMI1-SDA

ARC

HDMI_HP1

MI2C-SDA

MI2C-SCL

Title

Size

Document Number

Rev

Date:

Sheet

of

HDMI

V1.0

MST6M181VS

<OrgName>

A3

31

0

Tuesday, June 28, 2011

Title

Size

Document Number

Rev

Date:

Sheet

of

HDMI

V1.0

MST6M181VS

<OrgName>

A3

31

0

Tuesday, June 28, 2011

Title

Size

Document Number

Rev

Date:

Sheet

of

HDMI

V1.0

MST6M181VS

<OrgName>

A3

31

0

Tuesday, June 28, 2011

HOTPLUG

HDMI BYPASS OPTION

HDMI1(REAR)

HDMI2(REAR)

AGND-----DGND

Ⳉ䗮ᯊ

:

R251,R249

Ў

22

⃻ྚ

R78=0

⃻ྚ

R75=10K

R72=1K

Add by lin.20110311

R263

3.6K

R263

3.6K

C158

0.1uF

C158

0.1uF

R251

NC/22R

R251

NC/22R

R673

10R

R673

10R

R265

100

R265

100

VD106

NC

VD106

NC

1

2

R674

10R

R674

10R

C88

47n

C88

47n

R259

37K

R259

37K

VD107

NC

VD107

NC

1

2

R675

10R

R675

10R

+

CA85

22uF/16V

+

CA85

22uF/16V

R75

10K

R75

10K

P1

HDMI_J

P1

HDMI_J

DATA2+

1

DATA2 SHIELD

2

DATA2-

3

DATA1+

4

DATA1 SHIELD

5

DAT1A-

6

DATA0+

7

DATA0 SHIELD

8

DATA0-

9

CLK+

10

CLK SHIELD

11

CLK-

12

CEC

13

NC

14

SCL

15

SDA

16

DDC/CEC GND

17

+5V POWER

18

HOT PLUG

19

GND1

20

GND2

21

GND3

22

GND4

23

GND5

24

R76

4.7K

R76

4.7K

VD105

NC

VD105

NC

1

2

C161

0.1uF

C161

0.1uF

C93

0.1uF

C93

0.1uF

R267

NC/0R

R267

NC/0R

R266

500_1%

R266

500_1%

R261

37K

R261

37K

R305

4.7K

R305

4.7K

ADJ

OUT

IN

U31

AMS1117-3.3

ADJ

OUT

IN

U31

AMS1117-3.3

3

2

1

4

R668

10R

R668

10R

R74

10K

R74

10K

R81

1K

R81

1K

R242

NC/0R

R242

NC/0R

R678

10R

R678

10R

R681

10R

R681

10R

R672

10R

R672

10R

VD103

NC

VD103

NC

1

2

R264

100

R264

100

R250

NC/0R

R250

NC/0R

VD104

NC

VD104

NC

1

2

C164

0.1uF

C164

0.1uF

C168

2.2uF

C168

2.2uF

R252

NC/0R

R252

NC/0R

R254

NC/0R

R254

NC/0R

R671

10R

R671

10R

R94

47K

R94

47K

R257

4.7K

R257

4.7K

U19

PS331

U19

PS331

HPD2

1

SDA2

2

SCL

2

3

B21

4

A21

5

POW

2

6

B22

7

A22

8

GND

9

B23

10

A23

11

VCC

12

B24

13

A24

14

POW

1

15

HPD1

16

I2C_RST

17

SDA1

18

SCL1

19

B11

20

A11

21

VCC

22

B12

23

A12

24

GND

25

B13

26

A13

27

NC

28

B14

29

A14

30

REXT

31

POWDN

32

SDA_

CT

L

33

SC

L_CTL

34

I2

C_ADDR

35

Y4

36

Z4

37

VCC

38

Y3

39

Z3

40

GND

41

Y2

42

Z2

43

HPD_S

INK

44

Y1

45

Z1

46

SCL

_SIN

K

47

SDA_

SINK

48

POW_SINK

49

HPD3

50

SDA3

51

SCL3

52

B31

53

A31

54

POW3

55

B32

56

A32

57

GND

58

B33

59

A33

60

VCC

61

B34

62

A34

63

CEXT

64

R667

10R

R667

10R

R245

NC/0R

R245

NC/0R

R99

47K

R99

47K

R665

200R

R665

200R

R680

10R

R680

10R

R676

10R

R676

10R

R79

47K

R79

47K

R71

1K

R71

1K

R80

47K

R80

47K

R666

10R

R666

10R

D20

BAT54C

D20

BAT54C

D17

BAT54C

D17

BAT54C

R268

NC/100

R268

NC/100

R669

10R

R669

10R

R243

NC/0R

R243

NC/0R

R670

10R

R670

10R

P6

HDMI_J

P6

HDMI_J

DATA2+

1

DATA2 SHIELD

2

DATA2-

3

DATA1+

4

DATA1 SHIELD

5

DAT1A-

6

DATA0+

7

DATA0 SHIELD

8

DATA0-

9

CLK+

10

CLK SHIELD

11

CLK-

12

CEC

13

NC

14

SCL

15

SDA

16

DDC/CEC GND

17

+5V POWER

18

HOT PLUG

19

GND1

20

GND2

21

GND3

22

GND4

23

GND5

24

Q10

MMBT3904

Q10

MMBT3904

1

3

2

R304

4.7K

R304

4.7K

C89

0.1uF

C89

0.1uF

R269

NC/100

R269

NC/100

R72

1K/NC

R72

1K/NC

R78

1K

R78

1K

C157

0.1uF

C157

0.1uF

C76

0.1uF

C76

0.1uF

R677

10R

R677

10R

C74

0.1uF

C74

0.1uF

+

CA84

22uF/16V

+

CA84

22uF/16V

R679

10R

R679

10R

R262

3.6K

R262

3.6K

R241

NC/0R

R241

NC/0R

R253

NC/0R

R253

NC/0R

R249

NC/22R

R249

NC/22R

Summary of Contents for 8M26S

Page 1: ...scription MODEL Engineering Dept Artwork By Checked By Approved By Brand Name JOB NO Date Date Date SERVICE MANUAL 8M26S 2011 8 10 SKYWORTH SIZE A5 Design and specifications are subject to change without prior notice Only Referrence ...

Page 2: ...Content 2 11 17 18 19 20 21 28 29 45 46 49 50 57 ...

Page 3: ...LED 8M26S ...

Page 4: ...TOSHIBA CODE Component NTSC M PAL M PAL N VHF LOW 2 B VHF HIGH C W 11 VHF W 12 69 55 25MHz 127 25MHz 133 25MHz 311 25MHz 367MHz 801 25MHz ...

Page 5: ...40 55 80 For 22 LED For 24 LED For 32 LED ...

Page 6: ... 24 inches is 3W 24 inches is 4 ohm ...

Page 7: ...40 40 3 2 1 4 2 50 0 5 80 40 3 12000 26inches is 8 ohm ...

Page 8: ...40 YES 8 6 46 46 NO NO Standard Spanish Standard 20 ...

Page 9: ...4 2 4 0 40 70 0 40 70 0 40 40 85 Y0 50 30000 ...

Page 10: ...6E181VS PS331TQFP64G YPbPr AV2 IN HDMI 1 VGA PC EARPHONE AV OUT S PDIP U7 U1 SPEAKER U19 2 P 3 P 1 P TU2 U42 FLASH U29 M13S2561616A 5TG2K ESMT SCL TUNER P7 SDA BH3544F E2 TPA3113D2 AUDIO HDMI 2 P6 P13 P12 CON10 TPA1517NE CON6 MEDIA 1 MEDIA 2 AV1 IN CON11 ...

Page 11: ...3 TERMINAL POSITIVE VOL TAGEREGULATOR LD1117 3 3 SOT 223 8 9 2 523287 1 5 5 5 8 725 72 Thermal Protection For Adjustable Output disconnect A1 and A2 connect B INPUT OUTPUT ADJ GND A1 A2 B For Fixed Output connect A1 and A2 disconnect B 1 2 3 ...

Page 12: ...U28 1A 3 3V SOT 223 AS1117L ADJ U6 1MHZ 800MA SYNCHRONOUS STEP DOWN CONVERTER MP2105DJ TSOT23 5 12 ...

Page 13: ...V A_DDR1_DQ9 A_DDR1_DQ8 UDQS0 UDQM0 AVDD_PLL DVDD_DDR_1 2V LDQM0 LDQS0 AVDDIO_2 5V NC NC A_DDR1_DQ7 A_DDR1_DQ6 A_DDR1_DQ5 AVDDIO_2 5V A_DDR1_DQ4 A_DDR1_DQ3 A_DDR1_DQ2 A_DDR1_DQ1 AVDDIO_2 5V A_DDR1_DQ0 A_DDR1_WEZ A_DDR1_CAS A_DDR1_RAS A_DDR1_BA0 AVDDIO_2 5V A_DDR1_BA1 A_DDR1_A10 A_DDR1_A0 A_DDR1_A1 A_DDR1_A2 A_DDR1_A3 NC NC VDDC GPIO21 PWM1 GPIO20 PWM0 VDDP_2 GPIO77 I2S_OUT_MUTE PWM3 LVSYNC GPIO76 ...

Page 14: ...IC Block Diagram 14 U29 4MX16BIT BANKS DDR M13S2561616A 5TG2K ...

Page 15: ...r ess G ener at or M em or y A rr ay P age B uf fer Y D ecoder D ata R egi st er S R AM B uf fer S I S I O0 S CLK C l ock G ener at or S tate M achi ne M ode Logic S ense A m pl i f i er HV G ener at or O ut put B uf fer S O S I O1 C S W P H O LD ...

Page 16: ...1 Y1 Z2 Y2 Z3 Y3 VCC Z4 Y4 GND I2C_ADDR SCL_CTL SDA_CTL A34 B34 VCC A33 B33 A32 B32 A31 B31 GND SCL3 SDA3 HPD3 POW3 CEXT I2C_RST SDA1 SCL1 B11 A11 B12 A12 B13 A13 B14 A14 REXT POWDN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 50 49 48 47 46 45 44 43 42 41 60 59 58 57 56 55 54 53 52 51 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 64 63 62 61 POW_SINK PS331 ...

Page 17: ...2 IC Block Diagram 17 1 2 3 4 5 6 7 8 9 10 28 27 26 25 24 23 22 21 20 19 SD FAULT LINP LINN GAIN0 GAIN1 AVCC AGND GVDD PLIMIT PVCCL PVCCL BSPL OUTPL PGND OUTNL BSNL BSNR OUTNR PGND RINN RINP NC 11 12 13 14 18 17 16 15 OUTPR BSPR PVCCR PVCCR PBTL ...

Page 18: ... 18 ...

Page 19: ... 19 Main PCB Top Bottom Layer ...

Page 20: ...Main PCB Top Bottom Layer 20 ...

Page 21: ...to back to upper menu until leave factory mode Software information Enter factory mode you can get the software information from the bottom of menu Panel information Enter factory mode enter PANEL SETTING item you can get the panel information from the bottom of menu Aging mode Enter factory mode select SYSTEM SETTING item press OK button enter select AGING MODE item press button open aging mode N...

Page 22: ... it will show OK or FAILE If FAILE is showed you need to try again NOTE YPBPR ADC need to do twice by use 576P and 720P signal separate VGA source ADC Switch to PC source input tessellated white and black signal enter factory select AUTO ADC item in the ADC CALIBRATION press button to begin auto adjust When it is finish it will show OK or FAILE If FAILE is showed you need to try again 22 ...

Page 23: ... factory mode enter SYSTEM SETTING item select FAC RESET DEFAULT item and press OK button to reset the flash memory TV set will restart when it is finish Update software by USB Copy the new software name by MERGE bin to the root directory of USB drive Plug the drive to the USB socket if there are two USB socket make sure you use the socket 1 Enter factory select Software Update USB item and press ...

Page 24: ...restart when finish Note you need to restart the TV set again by AC power We suggest you need to do Factory reset after software update 24 ...

Page 25: ...Green offset B OFFSET Blue offset AUTO ADC Auto ADC calibration WHITE BALANCE MODE Select source TEMPERATURE Select Neutral Warm Cool Personal R GAIN Red gain G GAIN Green gain B GAIN Blue gain R OFFSET Red offset G OFFSET Green offset B OFFSET Blue offset COPY ALL Copy there values to all source PANEL SETTING TI MODE LVDS data format LVDS PORT LVDS data interface 25 ...

Page 26: ...HITE PATTERN White test pattern enable POWER REMIND No signal power off time BLUE SCREEN No signal blue screen enable TV source exclusion VIDE AGC Vide AGC DLC DLC enable WHITE BLACK STRENTH White black strength enable POWER CONDITION Power state remember FAC RESET DEFAULT Reset all value to factory default OUT FACTORY SET Reset some value to out box mode AGING MODE Aging mode enable NO SIGNAL MUT...

Page 27: ...NISH FRENCH PORTUGUESE BGI CHINESE SOURCE SETTING TV AV1 AV2 AV3 SCART HDMI1 HDMI2 HDMI3 YPBPR1 USB1 USB2 ANALOG CURVE MODE PICTURE MODE BRIGHTNESS CURVE CONTRAST CURVE SATURATION CURVE HUE CURVE SHARPNESS CURVE 27 ...

Page 28: ... ON VOL VALUE MAX VOLUME POWER ON SOURCE SCALE LOCK CHANNEL SEARCH LOCK OTHER OPTION SSC LVDS and DDR frequency setting UART DEBUG Debug port mode VIF1 VIF setting POWER ON LOGO Logo enable NICAM Nicam enable LOGO SET IN USB Setting logo by use the USB picture USB SRC NAME Change USB name UPLAY USB MEDIA Software Update USB 28 ...

Page 29: ... The graphics are for representation only 2 Power Indicator Remote Sensor 4 Channel Up Down Button 5 Volume Up Down Button 1 3 MENU SOURCE CH VOL 4 5 6 7 8 Front Panel 1 Power Button 3 Speakers 6 Menu Button 7 Source Button 8 Standby Button 2 3 ...

Page 30: ...b Pr Component input Connect YPbPr signal from signal source such as DVD 6 AV1 IN AV2 IN Connect AUDIO and VIDEO input signal from signal source such as DVD 7 AV OUT Connect AUDIO and VIDEO output signal 8 RF IN Connect a coaxial cable to receive signal from the antenna or cable 9 MEDIA1 MEDIA2 MEDIA port 10 EARPHONE Audio output speakers will be muted when earphone plugged HDMI1 HDMI2 PC IN PC AU...

Page 31: ...he cable not provided with this unit then connect to the antenna input of this unit for best reception 2 If the antenna cable in your home is other than the above two or you have problems in installing the antenna please contact your dealer Notes 1 Current outdoor antenna or cable TV usually use 75 OHM coaxial antenna cable For better using this kind of antenna cable reception we suggest 2 Flat ca...

Page 32: ...re aspect ratio 5 6 2 7 8 8 FREEZE Press to freeze or unfreeze the picture 9 10 11 10 Channel Up Down Press to select previous next channel CH 11 Volume Up Down V V Press to adjust the volume 12 12 MTS Option Press to select a different sound mode when the source is different 13 14 13 Menu Press to enter or exit from the TV menu EXTERNAL SCHEMATIC AND INSTALLATION 4 5 SLEEP Press to set the time t...

Page 33: ... previous Media music or movie in mode 23 Next Press to play the next Media music or movie in mode 19 MEDIA Press to the MEDIA menu enter 17 18 18 INFO Press to display relevant information such as screen format source etc 19 20 21 22 23 24 25 25 Stop Press to Media stop the music or movie in mode 15 16 15 OK Press to confirm and execute the selection 16 Up Down Left Right Cursor Press to select o...

Page 34: ...pness of the picture This function is not available in PC mode Brightness Adjusts the brightness of the picture and usually is adjusted together with Contrast Contrast Adjusts the difference between the light and dark areas of the picture To get better picture value Contrast should be adjusted to the proper value Color Adjusts the richness of color This function is not available in PC mode Picture...

Page 35: ... Mode Select the most suitable sound mode according to your watching contents Personal Standard Music Film News Balance Control the audio balance between the right and left TV speakers Surround Press this option to enter to set On or Off AVL This function may be set as On or Off Auto Volume Level can set the volume automatically adjust corresponding to the input audio SOUND Sound Mode Bass Treble ...

Page 36: ...arch Searches and saves channels automatically 1 NTSC MENU Auto Search TV 0 Channel CH 11 56 00 Mhz Air Air Channel Skip b You can skip unnecessary program channels of your choice not to be displayed during viewing and scanning when pressing the buttons Select OFF by pressing uttons to select the channel that would not like to skip from the channel scan operation 53 00MHz Off OSD Language Select y...

Page 37: ...m Password Note Default password is 0000 In the event whereby new password is forgotten it can be reset to default password Please be mindful that all other picture and audio settings will also be reset to default values Block No Rating Press to set the function Block or Unblock the not rating singal TV Rating Press to enter the TV Rating menu Press OK button to set rating block or unblock S L D S...

Page 38: ...ADJUST Press button to auto adjust PC size and position H Position Press button to adjust the H Position of the television V Position Press button to adjust the V Position of the television Phase Press button to adjust the phase of the picture Frequency Press button to adjust the updating frequency of the picture PC Auto Adjust H Position V Position Phase Frequency 50 50 50 50 Note These settings ...

Page 39: ...ich requires electric power source ensure its power does not exceed 500mA 8 An Unsupported File message will be displayed if the file format is unsupported or corrupted Supported Video File Supported Music File Supported Photo File Supported Text Format txt Encoding standard Unicode Media File Playback Support Use cable with the following maximum thickness for optimal connection to this TV or it m...

Page 40: ...ous file 5 Next buttons Press to skip to the next chapter track photo Skip to next file 7 Stop buttons Press the stop button to exit full screen playback access to the preview 1 MEDIA buttons Press to enter MEDIA menu You can play video and music view photo and text files from you USB storage devices 1 Connect USB storage device to MEDIA input terminal 2 Press MEDIA button to enter MEDIA mode 3 Pr...

Page 41: ...sing MEDIA Video Menu Press INFO to display Video Control Bar while playing the video Press to select the desired settings Press to exit from Info bar There are three modes of play mode Press OK button to select Current Track Repeat None and All Tracks Video Control Bar Pause AB Repeat Play 1 Display Mode C Fast Reverse Fast Forward Previous I LIST Current Information Election Play A MEDIA Move Re...

Page 42: ...display lyrics while the music is playing C 1 1 Return MUSIC Super Star mp3 1 Press to select MUSIC Press OK to enter 2 Press to select the desired drive and press OK to enter 3 Press to select the desired folder and press OK to open the folder select the desired music file using OK and press to start playing 4 Press to stop music and return to Music list 5 You may return to Media Player main menu...

Page 43: ...show and return to Photo list 5 You may return to Media Player main menu by pressing MEDIA I Photo Control Bar Press INFO to display Photo Control Bar during photo slide show Press to select the desired settings Press to exit from Info bar Pause Current Information C Resolution 1024 X 768 Size 983 KBytes Date Time 1 1 Return PHOTO Picture01 jpeg Previous Next Stop Zoom In Clockwise 90 Degrees Coun...

Page 44: ... 1 1 Return TEXT Text01 txt 1 Press to select TEXT Press OK to enter 2 Press to select the desired drive and press OK to enter 3 Press to select the desired folder and press OK to open the folder select the desired text file using OK and press to display the text document 4 Press to view previous or next text file 5 Press to select previous or next page in the text file 6 Press to return to Text l...

Page 45: ...ggest to change to the best resolution or other standard resolutions of Windows system Set refresh rate to be 60Hz SNOWY DOTS AND INTERFERENCE If the antenna is located in the fringe area of a television signal where the signal is weak the picture may be marred by dots When the signal is extremely weak it may be necessary to install a special antenna to improve the reception 1 Adjust the position ...

Page 46: ... power supply board Done Done Upgrade the software Check the 5V 12V 24V on power supply board Change the power supply board Check the ON OFF voltage on CON8 should be greater than 2 7V Check Q3 U41 Pin81 if it works well Change the panel Done Upgrade the software Change the Q3 or U9 Change the U41 Done Done Done Done Upgrade the software Done Done Change the EEPROM U43 ATMEL 24C64 Done Done Check ...

Page 47: ...mute Done Check the voltage of Mute pin beside the amplifier IC It should not be 0V Check the mute circuit if it is OK Done Fix the mute circuit Upgrade the software Change the main IC U41 Done Change the mainboard Done Done Check the audio input line the audio input circuit Done Service Flow Chart 47 ...

Page 48: ...ly connected Well connect the cable Check the current input source if it is TV Done Change the main IC U41 Adjust AGC follow the working guide Change the mainboard Done Done Done Check the DC power supply of the tuner Done Fix the DC supply Check the Q29 U25 circuit Check the Q29 U25 circuit Done Change the Q29 U25 Done Done Change the mainboard Change the tuner Done Change the mainboard Done Done...

Page 49: ...s 24V Done Y Y Y N N N Check the ON OFF voltage on CON8 should be greater than 2 7V Check Q3 U41 Pin81 if it works well Change the panel Done Upgrade the software Change the Q3 or U41 Change the U9 Done Done Done Upgrade the software Done Safely connect the LVDS line Make sure the LVDS power is correct 5V for 26 12V for 32 42 Done Change the EEPROM U43 ATMEL 24C64 Done Correct the power Chane the ...

Page 50: ...R14 NC 100K R40 4 7K R40 4 7K R22 NC 0 R22 NC 0 Q44 2SC1815 Q44 2SC1815 R62 100_1 R62 100_1 C114 0 1uF C114 0 1uF C18 10nF C18 10nF L115 220uH L115 220uH R5 NC 0 R5 NC 0 C66 0 1u C66 0 1u C53 1nF C53 1nF C162 0 1u C162 0 1u CA106 100uF16V CA106 100uF16V H2 NC H2 NC 1 2 3 4 5 6 7 8 9 R58 NC 10K R58 NC 10K C121 0 1uF C121 0 1uF Q26 3904 Q26 3904 1 2 3 C390 2 2u C390 2 2u R42 100K R42 100K C47 0 1u C...

Page 51: ...148 R332 4 7K R332 4 7K C487 NC C487 NC C490 NC C490 NC CA109 470uF 16V CA109 470uF 16V C483 NC 330pF C483 NC 330pF C481 1uF C481 1uF R190 10K R190 10K C21 1nF C21 1nF C22 150pF C22 150pF C462 NC 1uF C462 NC 1uF CA114 10uF 16V CA114 10uF 16V R549 0 R549 0 R199 10K R199 10K C479 NC 1nF C479 NC 1nF R326 4 7K R326 4 7K C488 NC C488 NC R544 NC 0 R544 NC 0 C463 NC 1uF C463 NC 1uF U12 TDA1517P U12 TDA15...

Page 52: ...K C110 0 1uF C110 0 1uF C84 47n C84 47n C148 0 1u C148 0 1u R124 200K R124 200K CON38 CON4_2 0 CON38 CON4_2 0 1 2 3 4 C100 0 1u C100 0 1u R122 68R R122 68R R207 4 7K R207 4 7K L120 FB L120 FB R1159 4 7K R1159 4 7K R92 4 7K R92 4 7K L123 FB L123 FB C111 0 1uF C111 0 1uF R171 4 7K R171 4 7K C106 20p C106 20p C80 47n C80 47n C50 47n C50 47n C73 47n C73 47n C125 0 1u C125 0 1u R204 22K R204 22K C135 0...

Page 53: ...73 10R R265 100 R265 100 VD106 NC VD106 NC 1 2 R674 10R R674 10R C88 47n C88 47n R259 37K R259 37K VD107 NC VD107 NC 1 2 R675 10R R675 10R CA85 22uF 16V CA85 22uF 16V R75 10K R75 10K P1 HDMI_J P1 HDMI_J DATA2 1 DATA2 SHIELD 2 DATA2 3 DATA1 4 DATA1 SHIELD 5 DAT1A 6 DATA0 7 DATA0 SHIELD 8 DATA0 9 CLK 10 CLK SHIELD 11 CLK 12 CEC 13 NC 14 SCL 15 SDA 16 DDC CEC GND 17 5V POWER 18 HOT PLUG 19 GND1 20 GN...

Page 54: ...ed y w CON11 RCA3X1 AV 1X3 7 4 5 6 2 3 7 1 R38 5 1R R38 5 1R R224 12K R224 12K R18 4 7K R18 4 7K D141 NC D141 NC 1 2 L22 NC FB L22 NC FB R36 5 1R R36 5 1R C9 0 1uF C9 0 1uF CON6 USB_4P CON6 USB_4P 1 VCC 1 2 D 2 3 D 3 4 GND 4 SHIELD 5 SHIELD 6 R13 0 NC R13 0 NC R19 4 7K R19 4 7K R39 5 1R R39 5 1R R6 100K R6 100K D138 NC D138 NC 1 2 R133 10K R133 10K R37 5 1R R37 5 1R R134 10K R134 10K Q2 3904 Q2 39...

Page 55: ... 2011 Title Size Document Number Rev Date Sheet of VGA V1 0 MST6M181VS OrgName A4 5 10 Monday June 13 2011 C145 0ohm 4 7UF_NC C145 0ohm 4 7UF_NC R285 75R R285 75R R123 100K NC R123 100K NC D137 NC D137 NC 1 2 R396 10K R396 10K R L GND P2 CKX 3 5 32 PHONE_SKY R L GND P2 CKX 3 5 32 PHONE_SKY 2 4 6 7 3 5 1 R112 NC R112 NC D153 NC D153 NC 1 2 D136 NC D136 NC 1 2 P3 VGA P3 VGA 5 10 4 9 3 8 2 7 1 15 14 ...

Page 56: ... 15 17 19 21 24 25 R279 75R R279 75R R127 33R R127 33R R223 12K R223 12K R303 10R R303 10R R141 75R R141 75R R293 47K R293 47K D130 NC D130 NC 1 2 R203 33R R203 33R R215 100R R215 100R R282 75R R282 75R R682 NC 47 R682 NC 47 R692 NC 47K R692 NC 47K D147 NC D147 NC 1 2 R278 33R R278 33R R95 33R R95 33R R165 33R R165 33R R275 33R R275 33R D146 NC D146 NC 1 2 R208 0R R208 0R C817 NC 0 1uF C817 NC 0 1...

Page 57: ...65 0 1u C365 0 1u R291 100R R291 100R C362 0R C362 0R C243 0 1u C243 0 1u R307 68R R307 68R R311 NC 0 R311 NC 0 R362 100K R362 100K R308 0R 560_1 R308 0R 560_1 C369 51R C369 51R C245 0 1uF 50V C245 0 1uF 50V R519 0R R519 0R L116 100uH L116 100uH C241 0 1u C241 0 1u D66 33V D66 33V C242 0 1u C242 0 1u R309 NC 180_1 R309 NC 180_1 L28 0R L28 0R C361 33R C361 33R C360 NC C360 NC C392 2 2u C392 2 2u CA...

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