Skyworth 8M26S Service Manual
  1. Manuals
  2. Brands
  3. Skyworth Manuals
  4. Chassis
  5. 8M26S
  6. Service manual
Skyworth 8M26S Service Manual

Skyworth 8M26S Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

SERVICE MANUAL

8M26
Design and specifications are subject to change without prior notice.
CHASSIS
SIZE:A5
(Only Referrence)
SERVICE MANUAL 8M26S
Description:
MODEL.
Brand Name:
JOB NO.
Engineering Dept:
Artwork By:
Checked By:
Approved By:
SKYWORTH
2011-8-10
Date:
Date:
Date:

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 8M26S and is the answer not in the manual?

Questions and answers

Related Manuals for Skyworth 8M26S

Summary of Contents for Skyworth 8M26S

  • Page 1: Service Manual

    SERVICE MANUAL 8M26 CHASSIS Design and specifications are subject to change without prior notice. (Only Referrence) SERVICE MANUAL 8M26S Description: SKYWORTH MODEL. Brand Name: JOB NO. Engineering Dept: 2011-8-10 Artwork By: Date: SIZE:A5 Checked By: Date: Approved By: Date:...
  • Page 2 Content--------------------------------------------------------------2 11-17 19-20 21-28 29-45 46-49 50-57...
  • Page 3 LED 8M26S...
  • Page 4 NTSC-M PAL-M PAL-N 55.25MHz ~ 127.25MHz VHF LOW 2~B 133.25MHz ~ 311.25MHz VHF HIGH C~W+11 367MHz ~ 801.25MHz W+12~69 TOSHIBA CODE Component...
  • Page 5 For 22” LED For 24” LED For 32” LED...
  • Page 6 (24 inches is 4 ohm) (24 inches is 3W)
  • Page 7 (26inches is 8 ohm) 12000...
  • Page 8 Standard Standard Spanish...
  • Page 9 30000...

  • Page 11: Ic Block Diagram

    IC Block Diagram U20 U23 U31 3.3V/1A 3-TERMINAL POSITIVE VOL TAGEREGULATOR LD1117-3.3 SOT-223 INPUT Thermal Protection OUTPUT For Adjustable Output, disconnect A1 and A2, connect B For Fixed Output, connect A1 and A2, disconnect B ADJ/ -11-...
  • Page 12 U28 1A 3.3V SOT-223 AS1117L-ADJ (1MHZ,800MA SYNCHRONOUS STEP-DOWN CONVERTER MP2105DJ TSOT23-5 -12-...
  • Page 13 IC Block Diagram U10(LCDTV CONTROLLER WITH VIDEO ECODE)MST6E181VS PIN DIAGRAM (MST6E181VS) -13-...
  • Page 14 IC Block Diagram 4MX16BIT BANKS DDR M13S2561616A-5TG2K -14-...
  • Page 15 IC Block Diagram -15-...
  • Page 16 IC Block Diagram U19(HDMI SWITCH) PS331TQFP64G SiI9185 Pin Mapping POWDN POW_SINK REXT HPD3 SDA3 SCL3 POW3 PS331 SCL1 SDA1 I2C_RST CEXT -16-...
  • Page 17 IC Block Diagram U1(DUAL BTL CLASS D AUDIO AMPLIFIER) TPA3113D2 PVCCL FAULT PVCCL LINP BSPL LINN OUTPL GAIN0 PGND GAIN1 OUTNL AVCC BSNL AGND BSNR GVDD OUTNR PLIMIT PGND OUTPR RINN RINP BSPR PVCCR PVCCR PBTL -17-...
  • Page 18 -18-...
  • Page 19 Main PCB Top/Bottom Layer -19-...
  • Page 20 Main PCB Top/Bottom Layer -20-...

  • Page 21: Factory Adjust Menu

    8M26S Factory Adjust Menu (V0.2) 1. Description Enter factory mode： Open source menu， and then press digital button “3”, “1”, “9” , “5” in turns to enter the factory menu. Press ↑ and ↓ button to choose the item, press OK button enter the submenu, press ← and → button to adjust the value.
  • Page 22 ADC adjusts: YPBPR source ADC: Switch to YPBPR source, input 100% color bar pattern, 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. NOTE: YPBPR ADC need to do twice by use 576P and 720P signal separate.

  • Page 23: White Balance

    White balance: Enter factory mode, enter “WHITE BALANCE” item, you can adjust white balance in this menu. Over scanning: Enter factory mode, enter “PANEL SETTING” item, enter “OVERSCAN” item, you can adjust the over scan in this menu. Factory reset: Enter factory mode, enter “SYSTEM SETTING”...
  • 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: Adc Calibration

    2. More information FACTORY MENU Default Value Remark ADC CALIBRATION MODE Select source R-GAIN Red gain G-GAIN Green gain B-GAIN Blue gain R-OFFSET Red offset G-OFFSET Green offset B-OFFSET Blue offset AUTO ADC Auto ADC calibration WHITE BALANCE MODE Select source TEMPERATURE Select Neutral/Warm/Cool/Personal R-GAIN...

  • Page 26: System Setting

    LVDS BIT PWMFREQUENCY TTL PWM frequency PWM DUTY TTL PWM duty OVERSCAN OVERSCAN_RESLUTION HPOSITION Horizontal position VPOSITION Vertical position HSIZE Horizontal size VSIZE Vertical size SYSTEM SETTING FAC. HOTKEY Factory hot key enable TTX BRI Teletext brightness WHITE PATTERN White test pattern enable POWER REMIND No signal power off time BLUE SCREEN...

  • Page 27: Source Setting

    S-CHINESE SPANISH FRENCH PORTUGUESE BGI CHINESE SOURCE SETTING 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: Hotel Function

    VOLUME CURVE BACKLIGHT HOTEL FUNCTION HOTEL MODE Hotel mode enable IR LOCK LOCAL KEY LOCK USER SETTING SAVE VOLUME FIXED POWER ON VOL VALUE MAX VOLUME POWER ON SOURCE SCALE LOCK CHANNEL SEARCH LOCK OTHER OPTION LVDS and DDR frequency setting UART DEBUG Debug port mode VIF1...

  • Page 29: External Schematic And Installation

    EXTERNAL SCHEMATIC AND INSTALLATION Front Panel Note: The graphics are for representation only. 1.Power Button 2.Power Indicator / Remote Sensor 3.Speakers 4.Channel Up/Down Button 5.Volume Up/Down Button 6.Menu Button 7.Source Button 8.Standby Button -29-...

  • Page 30: Back Panel

    EXTERNAL SCHEMATIC AND INSTALLATION Back Panel Note: The graphics are for representation only. HDMI1 HDMI2 S/PDIF VIDEO VIDEO PC IN LEFT LEFT RIGHT RIGHT AUDIO IN AV2 IN AV OUT 1.PC IN: Connect a PC via a VGA cable. 2. HDMI1\HDMI2:Connect HDMI input signal from signal source such as DVD. 3.

  • Page 31: Antenna/Cable Connection

    EXTERNAL SCHEMATIC AND INSTALLATION Antenna /Cable Connection There are two kinds of antenna in use. VHF TV ANTENNA TWO KINDS OF ANTENNA UHF TV ANTENNA To TV VHF/UHF No need to install adapter ANTENNA jack (Note 1) U/V MIXER COAXIAL ANTENNA Need to install adapter VHF/UHF (Note 2)
  • Page 32 EXTERNAL SCHEMATIC AND INSTALLATION Remote Control 1. Standby( Press to turn the TV on or off(standby). 2. Picture Mode( P.P ) Press to select the desired picture mode. 3. Sound Mode( S.M ) Press to select the desired sound mode. 4.ZOOM Press to select the desired picture aspect ratio.

  • Page 33: Remote Control

    EXTERNAL SCHEMATIC AND INSTALLATION Remote Control 15.OK Press to confirm and execute the selection. 16. Up/Down/Left/Right Cursor Press to select or adjust the desired item on the menu. 17.CC button Press to select the CCD or OFF. 18.INFO Press to display relevant information such as screen format, source, etc.

  • Page 34: Menu Control

    MENU CONTROL This section explains the menus of your TV. Each menu is outlined and detailed to help you get the most from your TV. Basic Operation 1. Press MENU on the remote control or on the TV key panel to display the main menu. 2.

  • Page 35: Sound Settings

    MENU CONTROL Neutral: Keep the original white Warm: Red Personal : The user may customize the color temperature.(Red/Green/Blue). Cold: Blue. Display Mode To select different display mode. To select four modes of digital noise reduction are available including Off, Low, Middle and High. Sound Settings Sound Mode SOUND...

  • Page 36: Installation Settings

    MENU CONTROL Installation Settings Note: These settings are only available in TV mode. INSTALLATION Channel No. Sets the received TV channel No. Channel No. Color System NTSC Colour system Auto Search Selects colour system. Fine Tuning 53.00MHz Channel Skip Signal Source Auto Search Searches and saves channels automatically.

  • Page 37: Advanced Settings

    MENU CONTROL Advanced Settings Press button to select Advanced menu, then press [OK] button to enter. Input password to enter, default password is " " 0000 . ADVANCED Enter password Set Password V-CHIP TV-Rating Movie-Rating English-Rating French-Rating Clear Cancel Block No Rating Free Record Limit 6Hr.

  • Page 38: Auto Adjust

    MENU CONTROL PC Settings Note: These settings are only available in PC mode. when you connect VGA cable to the jacks of PC and select the signal source as "PC" the screen menu will be activated. You can use the function to adjust the display setting automatically or manual.

  • Page 39: Media Control

    MEDIA CONTROL Gentle Reminder When Using The Media Player 1.Some USB storage devices may not be compatible to operate smoothly with this TV. 2.Back up all of the data in the USB storage device in case if data was lost due to unexpected accident.

  • Page 40: Media Menu

    MEDIA CONTROL Remote Control 1.MEDIA buttons Press to enter MEDIA menu. 2.Fast Backward buttons( Fast reverse while playback. 3.Fast Forward buttons( Fast forward while playback. 4.Previous buttons( Press to return to the previous chapter /track/photo. Skip to previous file. 5.Next buttons( Press to skip to the next chapter/track/photo.

  • Page 41: Video Menu

    MEDIA CONTROL Video Menu 1.Press [ ] / [ ] to select VIDEO. Press [ OK ] to enter. Return 2.Press [ ] / [ ] to select the desired drive VIDEO and press [ OK ] to enter. 3inl.rmvb 3.Press [ ] / [ ] to select the desired folder...

  • Page 42: Music Menu

    MEDIA CONTROL Music Menu 1.Press [ ] / [ ] to select MUSIC. Press [ OK ] to enter. Return 2.Press [ ] / [ ] to select the desired drive MUSIC and press [ OK ] to enter. Super Star.mp3 3.Press [ ] / [ ] to select the desired folder...

  • Page 43: Photo Menu

    MEDIA CONTROL Photo Menu 1.Press [ ] / [ ] to select PHOTO. Press [ OK ] to enter. Return 2.Press [ ] / [ ] to select the desired drive and press [ OK ] to enter. PHOTO Picture01.jpeg 3.Press [ ] / [ ] to select the desired folder...

  • Page 44: Text Menu

    MEDIA CONTROL Text Menu 1.Press [ ] / [ ] to select TEXT. Press [ OK ] to enter. Return 2.Press [ ] / [ ] to select the desired drive Please ensure that the text TEXT file is saved in an encoding and press [ OK ] to enter.

  • Page 45: Troubleshooting

    TROUBLESHOOTING NO PICTURE, NO SOUND SNOWY DOTS AND INTERFERENCE If the antenna is located in the fringe area of a 1. Check if the fuse or circuit breaker is working. television signal where the signal is weak, the 2. Plug another electrical device into the outlet to picture may be marred by dots.

  • Page 46: Service Flow Chart

    Service Flow Chart -46-...
  • Page 47 Service Flow Chart -47-...
  • Page 48 Service Flow Chart -48-...
  • Page 49 Service Flow Chart -49-...
  • Page 52 AUMUTE_OUT SW_GAIN AV3_AURin4 AV3_AULin4...

Table of Contents