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Table of contents for the manual
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Page 1
SERVICE MANUAL 8M26 6 CHASSIS Description: MODEL. Engineering Dept: Artwork By: Checked By: Approved By: Brand Name: JOB NO. Date: Date: Date: SERVICE MANUAL 8M2 6S 2011- 8-10 SKYWORTH SIZE:A5 Design and specifications are subject to change without prior notice. (Only Referrence)[...]
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Content--------------------------------------------------------------2 1 1-17 18 19-20 21-2 8 29 -4 5 4 6 - 49 5 0 -5 7[...]
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L ED 8M 26 S[...]
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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[...]
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40 55 80 For 22” LED For 24” LED For 32” LED[...]
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(24 inches is 3W) (24 inches is 4 ohm)[...]
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40 40 3 2 1 4.2 50 0.5 80 40 3 12000 (26inches is 8 ohm)[...]
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4 0 YES 8 6 4 6 4 6 NO NO Standard Spanish Standard 2 0[...]
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4 2 4 0 40 7 0 0 40 7 0 0 40 4 0 8 5 - Y 0 5 0 30000[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A LVDS OUT U10 MST6E181VS 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[...]
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IC Block Diagram -1 1- - U20 U23 U31 ( 3.3V/1A 3-TERMINAL POSITIVE VOL TAGEREGULATOR ) LD1117-3.3 SOT-223 8᧤9$/2:'523287/,1($5$55(*8/$725᧥/'$'-72 Thermal Protection + - For Adjustable Outp ut, disconnect A1 and A2, connect B INPUT OUTPUT ADJ/ GND A1 A2 B For Fi[...]
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U28 ˄ 1A 3.3V SOT -223 ˅ AS1 1 17L- ADJ U6 ˄ (1MHZ,800MA SYNCHRONOUS STEP-DOWN CONVER TER ˅ MP2105DJ TSOT23-5 -1 2-[...]
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IC Block Diagram -13- U10(LCDTV CONTROLLER WITH VIDEO ECODE)MST6E181VS PI N DI AGRAM (MST6E181VS) MST6E181VS 198 199 217 2 1 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 1[...]
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IC Block Diagram -14- U29 ( 4MX16BIT BANKS DDR ) M13S2561616A-5TG2K[...]
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IC Block Diagram -15- 8᧤0%,7&0266(5,$/)/$6+᧥623 Ad d r e s s Ge n e r a t o r Me mo r y A r r a y Pa g e Bu f f e r Y- D ec o d e r Da t a Re g i st er SR A M B u f fer SI / SI O 0 S CLK Cl oc k G ener a t o r S tate Ma c h i ne M ode Logi c Se ns e Am p l i fi er HV Ge n e r a t o r Ou t p u t B u f fer SO / SI O[...]
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IC Block Diagram -16- U19(HDMI SWITCH) PS331TQFP64G SiI9185 Pin Mapping POW2 HPD2 SDA2 SCL2 GND B21 A21 VCC B22 A22 GND B23 A23 VCC B24 A24 POW1 HPD1 HPD_SINK SDA_SINK SCL_SINK NC Z1 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 A1[...]
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U1(DUAL BTL CLASS D AUDIO AMPLIFIER) TPA3113D2 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 F AUL T LINP LINN GAIN0 GAIN1 A VCC 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[...]
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-1 8 -[...]
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-1 9 - Main PCB T op/Bottom Layer[...]
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Main PCB T op/Bottom Layer - 20 -[...]
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8M26S Factory Adjust Menu (V0.2) 1. Description Enter factory mode : Open source menu , and then press digital button “3”, “1”, “9” , “5” i n 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. Leave factory mode: Press men[...]
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ADC adjusts: YPBPR source ADC: Switch to YPBPR source, input 100% color bar pattern, enter factory, select “AUTO ADC” it em 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 tw ice by use 576P a[...]
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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 “SYSTE M SETTING” item, select “FAC RESET DEFAULT” ite[...]
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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. - 2 4 -[...]
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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 Ne utral/Warm/Cool/Personal R-GAIN Red gain G-GAIN Green gain B-G[...]
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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[...]
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S-CHINESE SPANISH 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 - 2 7 -[...]
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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 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[...]
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EXTERNAL SCHEMA TIC AND INST ALLA TION - 29 - Note : 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[...]
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EXTERNAL SCHEMA TIC AND INST ALLA TION -3 0 - Back Panel Note : The graphics are for representation only . 1.PC IN: Connect a PC via a VGA cable. 2. HDMI1HDMI2: Connect HDMI input signal from signal source such as DVD. 3. PC A UDIO IN: Au dio input for PC and Audio input. 4. S/PDIF: Use a digital optical cable to connect your TV to a compatible au[...]
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Antenna /Cable Connection There are two kinds of antenna in use. VHF/UHF To TV VH F/UHF ANTENNA jack (75 ) TWO KINDS OF ANTENNA VHF TV ANTENNA UHF TV ANTENNA U/V MIXER No need to install adapter COAXIAL ANTENNA (Note 1) (Note 2) FLAT CABLE Need to install adapter 1. Connect the plug of the antenna cable or CATV cable to the cable (not provided with[...]
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-3 2 - Remote Control 9.Mute( ) Press to mute or restore the volume. 6. Program Select (0-9) Press to select the TV channel directly . 3. Sound Mode( S.M ) Press to select the desired sound mode. 2. Picture Mode( P .P ) Press to select the desired picture mode. 1. Standby( ) Press to turn the TV on or off (standby). 1 3 4.ZOOM Press to select the d[...]
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EXTERNAL SCHEMA TIC AND INST ALLA TION -3 3 - Remote Control 20.Fast Backward Button( ) Press to fast reverse in Media mode. 21.Fast Forward ( ) Press to fast forward in Media mode. 24.Play & Pause ( ) Press to pause playback in Media mode, press again to continue playback. 22.Previous ( ) Press to play the previous Media music or movie in mode[...]
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Basic Operation This section explains the menus of your TV. Each menu is outlined and detailed to help you get the most from your TV. 1. Press MENU on the remote control or on the TV key panel to display the main menu. 2. Press / and / to highlight the desired menu/item. 3. Press / to change the setting. 4. Press MENU to save setting and go back to[...]
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MENU CONTROL -3 5 - Neutral: Keep the original white Warm: Red : The user may customize the color temperature.(Red/Green/Blue). Cold: Blue. Display Mode To select dif ferent display mode. DNR To select four modes of digital noise reduction are available including Of f, Low, Middle and High. Personal Sound Settings Bass Control the level of low-pitc[...]
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CH / MENU CONTROL -3 6 - Signal Source " " Press button to adjust the Signal Source which can choose "Air, Cable". Installation Settings Note: These settings are only available in TV mode. INST ALLA TION Channel No. Color System Auto Search Fine Tuning Channel Skip Signal Source Colour system Selects colour system. Channel No. S[...]
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MENU CONTROL -3 7 - ADV ANCED Set Password V-CHIP TV-Rating Movie-Rating English-Rating French-Rating Block No Rating Advanced Settings Free Record Limit 6Hr. Enter password Clear Cancel Press / button to select Advanced menu, then press [OK] button to enter. Input password to enter , default password is 0000 . "" Off PG C8+ G No Change P[...]
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PC Settings -3 8 - MENU CONTROL when you connect VGA cable to the jacks of PC and select the signal source as "PC" the screen menu will be activated. Y ou can use the function to adjust the display setting automatically or manual. AUTO ADJUST Press " " button to auto adjust PC size and position. H Position Press " " bu[...]
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MEDIA CONTROL - 39 - 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. We do not assume any liability for the losses by misuse or malfunction. Data backup is consumer&a[...]
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MEDIA CONTROL -4 0 - Remote Control 2.Fast Backward buttons( ) Fast reverse while playback. 3.Fast Forward buttons( ) Fast forward while playback. 6.Play & Pause buttons( ) Press to pause play and press again to make play continue. music or movie 4.Previous buttons( ) Press to return to the previous chapter /track/photo. Skip to previous file. [...]
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MEDIA CONTROL -4 1 - 1.Press [ ] / [ ] to select VIDEO. 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 video file using [ OK ] and press [ ] to start playing. 4.Press [ ] to stop video playing and r[...]
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MEDIA CONTROL -4 2 - Album: Http://www.c cyy.c om Title: Super Star Size: Bit Rate : 128K 967 KBytes Artlist :5mm Sampling :44K Ye ar : 2008 Play Mode Note: - This menu only shows support files. - Files with other file extensions are not displayed, even if they are saved on the same USB storage device. - An over-modulated mp3 file may cause some so[...]
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MEDIA CONTROL -4 3 - Photo Menu 1.Press [ ] / [ ] to select PHOTO. 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 photo file using [ OK ] and press [ ] to start playing. 4.Press [ ] to stop photo sl[...]
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MEDIA CONTROL -4 4 - Size: 20 KBytes Please ensure t hat th e t ext file i s s aved in an e ncoding standard (eg.Unicode). This may minimize t he loss of characters in a m ultiple- language content. Note: - It supports *.txt files.(English character) - Please ensure that the text file is saved in an encoding standard. This may minimize the loss of [...]
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NO PICTURE, NO SOUND 1. Check if the fuse or circuit breaker is working. 2. Plug another electrical device into the outlet to make sure it is working or turned on. 3. Power plug is bad contact with the outlet. 4. Check the signal source. NO COLOR 1. Change the color system. 2. Adjust the saturation. 3. Try another channel. Black-white program may b[...]
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Y Y Y Y Y Y Y Y N N N N N N N N Y Y Y Y Y Y N N N N N N N Y N No audio & No backli g ht Led indicator “red” on Check the 5VSTB on “CON8” Press the “ON/OFF” on keyboard & remote control , led turns g reen Check the AC input on p ower su pp l y board Upgrade the software Change the AC line Check the fuse on power supply board Done[...]
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N N N OK OK Y Y N N =0 V >0 V OK Has video but no audio Check if the V olu me has set to “ 0” or if the it is mute Done Check the voltage of “Mute” pin beside the am p lifier IC. It should not be 0V . Check the mute circuit if it is OK. Done Fix the mute circuit Upgrade the s oftware Change the main IC “U41” Done Change the mainboard[...]
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N N N N N N N N N OK OK OK OK OK OK OK Y Y N N Y Y N N OK OK Has video but no colo r Check the Color / Saturation in picture menu if it has decreased to “0” Increase the item to default “50” Check the cable input if it has exactl y connected W ell connect the cable Check the current input source if it is TV Done Change the main IC “U41”[...]
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Y Y Y Y Y OK OK OK OK OK OK N N N N N N N N N N N Has audio but no video Check if the backlight is on Done Check the connector of b ackli g ht inve r ter connected Check the L VDS line if it is connected Safely connect the inverter line Check the voltage of inverter line is 24V Done Y Y Y N N N Check the “ON/OFF” voltage on “CON8”, should b[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A BL-ADJUST VBL_CTRL PANEL_ON BRI_ADJ-PWM0 BL-ADJUST BL-ON/OFF STANDBY STANDBY STANDBY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY +12V_ONLY U50-5 PANEL_ON/OFF +5V_Standby +5V_Standby +5V_Standby +5V_Standby STANDBY STANDBY +12V_ONLY +12V_ONLY +12V_ONLY U50-3 BL-ON/OFF [...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A AMP_L GAIN0 GAIN1 +12V_AMP +12V_AMP +12V_AMP +12V_AMP LP_OUT LP_OUT LP_OUT LN_OUT LN_OUT LN_OUT LN_OUT LN_OUT LN_OUT RN_OUT RN_OUT RN_OUT RP_OUT RP_OUT RP_OUT RP_OUT RP_OUT RP_OUT GAIN1 GAIN1 GAIN0 LP_OUT RP_OUT LN_OUT RN_OUT +12V_AMP +12V_AMP AMP_M LP_OUT AMP_L AMP_R AMP_R RP_OUT AMP_M SP_AINL EAR_MUTE SP_AINR O[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A FLASH_CS0N FLASH_WP0N SPI_Flash-SDI SPI_Flash-SDO SPI_Flash-SCK RXO0+ R7_RXO0+ RXO0- R6_RXO0- RXO1+ R5_RXO1+ RXO1- R4_RXO1- RXO2- R2_RXO2- RXO2+ R3_RXO2+ RXO3- G6_RXO3- RXO3+ G7_RXO3+ RXOC- R0_RXOC- RXOC+ R1_RXOC+ RXO4- G4_RXO4- RXO4+ G5_RXO4+ RXE0- G2_RXE0- RXE0+ G3_RXE0+ RXE1- G0_RXE1- RXE1+ G1_RXE1+ RXE2- B6_R[...]
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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[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A USB2_D- USB2_D+ USB1_D- USB1_D+ USB1_D1+_in USB1_D1-_in USB2_D1+_in USB2_D1-_in USB2_D1+_in USB2_D1-_in USB1_D1+_in USB1_D1-_in USB_ON2 USB_ON1 AV3_V AV3_L AV3_R +5V_USB2 +5V_USB1 +5V_USB1 +5V_USB2 +5V_Normal +3.3V_Normal +3.3V_Normal +5V_Normal +5V_USB2 +5V_USB1 +5V_Normal +5V_Normal USB2_D- USB2_D+ USB1_D- USB1[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A UART-RX VGA-AURin0 VGA-AULin0 VGA-HS UART-RX VGA-VS UART-TX UART-TX VGA_VSin VGA_HS VGA-SDA PC-R PC-L VGA-Rin VGA-Gin VGA-Bin PC-L PC-R VGA-SCL +5V_Normal VGA-AULin0 VGA-AURin0 VGA_HS VGA_VSin UART-TX UART-RX VGA-B VGA-G VGA-R Title Size Document Number Rev Date: Sheet of VGA V1.0 MST6M181VS <OrgName> A4 51[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A RGB2-HDTV_SOGIN RGB2-HDTV_GIN RGB2-HDTV_RIN RGB2-HDTV_BIN AV1_L AV1-AURin1 AV1-CVBS2P AV1-AULin1 AV1_R AV2_AURin4 AV2-CVBS1P AV2_AULin4 AV_LOUT AV_ROUT AV2_L SCART-Bin AV2_V AV_VOUT AV2_R SCART-Rin SCART-Gin SC_FS AV_LOUT VGA_VS VGA-G AUMUTE_OUT SCART-G SCART-Bin SCART-Rin SC_FB RGB0_Pr+ RGB0_Y+ RGB0_Y-SOG RGB0_P[...]
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A TUAGC TAGC TU_SDA TU_SCL TUNER_SDA TUNER_SCL TU_SDA TU_SCL IF-IN- TUAGC IF-IN+ BPF_OUT- BPF_OUT+ IF-IN- IF-IN+ VIFP VIFM 33V 40V +5V_Tuner 33V +5V_Tuner +5V_Normal +5V_BACK +5V_BACK +12V_Normal +5V_Normal TAGC TUNER_SDA TUNER_SCL VIFM VIFP Title Size Document Number Rev Date: Sheet of TUNER V1.0 MST6M181VS <Or[...]