VISIO E70-C3 Service Manual
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VISIO E70-C3 Service Manual

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SERVICE MANUAL
LED COLOR TELEVISION
MODEL:
E70-C3

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Summary of Contents for VISIO E70-C3

  • Page 1 SERVICE MANUAL LED COLOR TELEVISION MODEL: E70-C3...

  • Page 2: Table Of Contents

    CONTENTS CHAPTER 1. SPECIFICATIONS [1] SPECIFICATIONS ............................2 [2] DIMENSIONS ..............................3 CHAPTER 2. REMOVING OF MAJOR PARTS [1] REMOVING OF MAJOR PARTS ......................4 CHAPTER 3. ADJUSTMENT PROCEDURE [1] ADJUSTMENT PROCEDURE ......................16 [2] SERVICE MODE ..........................26 [3] SOFTWARE UPGRADE PROCEDURE ....................28 CHAPTER 4.

  • Page 3: Specifications

    CHAPTER 1. OPERATION MANUAL [1] SPECIFICATIONS Vizio E70-C3 [2]DIMENSIONS Vizio E70-C3 E A-...

  • Page 4: Removing Of Major Parts

    CHAPTER 2. Removing of Major Parts Vizio E70-C3 1. Assy/Panel Removal Notes: Please put your machine on soft material to avoid scrape panel when you disassemble it. Front view Fig.1 Back view Fig.2 Step1. Remove the FEET Assy.
  • Page 5 Remove the 4 crews as Fig.3 and pull out the FEET ASSY module Fig.3 Step 2. Remove the REAR COVER Assy. 1. Remove the 5screws, around the I/O cover area as Fig.4. Fig.4 2. Remove the 1 screw at the AC socket area as Fig.5. Fig.5...
  • Page 6 3.Remove the 4 screws at the rear cover area as Fig.6. Fig.6 4.Remove the 20 screws at the rear cover area as Fig.7. Fig.7 Remove the REAR COVER Assy SOP...
  • Page 7 Step3. Remove Main, Power, IR board, Key pad ASSY, Ac Socket and speakers Fig.8 Remove 11 screws as Fig 8 shows, Separate Cables from the boards and detach boards. 2. Remove 2 screws as Fig 9, Detach KEY ASSY .
  • Page 8 Fig.9 Detach speakers as Fig 10 Fig 10 4. Move 2 screws as Fig 11, Detach AC socket ASSY. Fig 11 Step4. Remove feet BKT. 1. Remove the 12 screws. Detach the feet BKT as Fig.12...

  • Page 9: Chapter 3. Adjustment Procedure

    CHAPTER 3. ADJUSTMENT PROCEDURE [1]ADJUSTMENT PROCEDURE 1. Main Menu (The default value is marked in red) Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Standard Calibrated Picture Calibrated Dark Mode Vivid Game Computer Auto Brightness control Medium High Backlight...
  • Page 10 Reduce Signal Noise Reduce Signal Noise Middle High Reduce Block Noise Middle High Game Low Latency Picture Size & Picture Size Position Picture Position Film Mode Auto Color Space Gamma Save Picture Mode Picture Lock Picture Mode Edit Mode Reset Picture Mode- Color Picture Mode...
  • Page 11 Speakers Surround Sound Volume Leveling Balance -50 – 50(0) Lip Sync 5(0) Digital Audio Bitstream Fixed Analog Audio Out Variable Equalizer Audio Mode Flat 100HZ -12~12(0) Settings 300HZ -12~12(0) 1KHZ -12~12(0) 3KHZ -12~12(0) 10KHZ -12~12(0) Dynamic Center Bass Boost Bright Delete Audio Mode Sleep Timer...
  • Page 12 Connection Wireless Access Points More Access Points Manual DHCP Setup IP Address Subnet Mask Default Gateway Pref. DNS Server Alt. DNS Server Wireless MAC Save Cancel Hidden Edit Point Name Network Show Keyboard Connect Test Retest Connection Manual Setup Channel Antenna Source Cable...
  • Page 13 Analog Stereo Audio Mono Digital English Language Español Français Closed Closed Caption(fo Captions r TV Analog Source Closed only) Captions Digital Closed Captions Digital Style Caption Style As Broadcast Custom Text Style As Broadcast Playbill Newsprint Computer Modern Casual Script Capitols Text Size As Broadcast...
  • Page 14 Cyan Yellow Magenta Text Opacity As Broadcast Solid Translucent Transparent Text Edges As Broadcast None Raised Depressed Uniform Drop Shadow Text Edges Color As Broadcast Black White Green Blue Cyan Yellow Magenta Background Color As Broadcast Black White Green Blue Cyan Yellow Magenta...
  • Page 15 Window Color As Broadcast Black White Green Blue Cyan Yellow Magenta Window Opacity As Broadcast Solid Flashing Translucent Transparent Devices HDMI-1 HDMI-1 HDMI-1 Blu-ray Cable Box Computer Game Satellite Space for key in device name Cancel HDMI-2 HDMI-2 HDMI-2 Blu-ray Cable Box Computer Game...
  • Page 16 Cancel HDMI-3 HDMI-3 HDMI-3 Blu-ray Cable Box Computer Game Satellite Space for key in device name Cancel HDMI-4 HDMI-4 HDMI-4 Blu-ray Cable Box Computer Game Satellite Space for key in device name Cancel COMP COMP COMP Blu-ray Cable Box Computer Game Satellite Space for key in...
  • Page 17 Cancel System System Information Menu English Language Español Français Time and Time Zone Hawaii (-10) Local Alaska (-9) Settings Pacific (-8) Mountain (-7) Arizona (-7) Central (-6) Indiana (-6) Eastern (-5) Atlantic (-4) Newfoundland (-3.5) London (0) Guam (+10) Daylight Saving Auto Time...
  • Page 18 Zip Code Country Canada Mexico Parental Locks Controls(for TV source Channel Locks only) USA TV TV-Y TV-Y7 TV-G TV-PG TV-14 TV-MA USA MOVIE PG-13 NC-17 Canadian English Canadian French 8 ans+ 13 ans+ 16 ans+ 18 ans+ Block Unrated Shows Change PIN New PIN Confirm PIN...
  • Page 19 View Mode Viewport Overlay Centered Overlay Wide TV Name Space for key in TV name Disable ARC only Enable Device Discovery Power Indicator Reset & Reset TV to Reset Admin Factory Defaults Cancel VIZIO Privacy Policy Smart Interactivity Off Store Demo Disabled Enabled Channel...
  • Page 20 2. Select Picture mode to Standard mode and check the x, y data. Input Injection Point: HDMI cable Alignment method: Initial Set-up: 1. Before the adjustment, system should be in burn-in mode for 30 minutes. 2. Set picture mode to Standard 3.

  • Page 21: Service Mode

    3. Luminance >= cd/m in the center of the screen when Brightness control at 100, Contrast control at 100, Backlight control at 100. [2] SERVICE MODE Enter factory mode menu: press MENU + Numeric keys “3481” to enter factory mode. While TV is in normal Power On state, press Remote Power Key again to leave Factory Menu, TV entry Standby state.
  • Page 22 c. Insert the USB flash to the USB port of the TV d. Wait seconds then you’ll see OSD message like below indicating the firmware upgrade is in progress. e. After the executing accomplished, TV will reboot itself. f. After TV reboots, you’ll see the OSD message like below indicating the TV is installing a new firmware.
  • Page 23 you’re installing. h. After the installing progress complete, TV will restart itself again. And now the utv upgrade is accomplished. You can go to “Menu System System Information Version” for version number to check if the firmware upgrade is successful. Fs.sys/safe-kernel.img1/ update_demo.tgz upgrade: For Fs.sys/safe-kernel.img1/ update_demo.tgz upgrade, you’ll receive a Fs.sys/safe-kernel.img1/ update_demo.tgz file and the file name must be...
  • Page 24 Please make sure there’s only this Fs.sys/safe-kernel.img1/ update_demo.tgz file in the root) b. Insert the USB flash to the USB port of the TV. c. DC Power OFF then DC Power ON. You’ll see the Power LED blinking which means it’s under programming. d.

  • Page 25: Troubleshooting Table

    CHAPTER 4.TROUBLESHOOTING TABLE [1]TROUBLE SHOOTING TABLE The sound is not emitted from the speaker though the picture has come out. No sound output in all models? TEREMINAL MAIN UNIT: Is the audio signal outputs of pin (P31), pin (P32) of IC U502 and pin (12) (L OUTPUT), pin (3) (R Check IC U502/U802 and its peripheral circuits.
  • Page 26 No sound (during the reception of TV broadcasting) Does not the sound go out though the picture has come out when UHF/VHF is received? MAIN UNIT: Is the IF signal output from pin (8) and pin (9) of Check the tuner and its peripheral circuits. Replace as required.
  • Page 27 No sound from external input devices (1) Does not the sound of the audio signal from (Component Input) go out? MAIN UNIT: Is the audio signal properly sent to pin (8) and pin Check the connection to CN6101 and the external (10) of CN6101? input device.
  • Page 28 No sound from external input devices (2) Does not the sound of the audio signal from (USB input) go out? Is USB stick audio format correct? Change to correct audio format. MAIN UNIT: Is +5V input to pin( 5) of IC U6501? Check the power supply.
  • Page 29 The audio signal is not output No audio signal output from Line-Out terminal (CN801). MAIN UNIT: Is audio signal output from pin (12) (OUTL) and pin Check the connection to HPOL(R) OUT and (3) (OUTR) of IC U802 to Jack (CN801)? external devices.
  • Page 30 The audio signal is not output No audio signal output from SPDIF terminal (CN803). MAIN UNIT: Is the audio signal output from IC U502 pin Check the line between IC U502 and CN803 (AK30) (SPDIFO) sent to CN803? Check IC U502 and its peripheral circuits.
  • Page 31 No picture on the display (1) The picture doesn't appear in all modes. MAIN UNIT: Check LVDS signal output from IC U502 or not? (LVDS_TA3_N), (LVDS_TA3_P), (LVDS_TB3_N), (LVDS_TB3_P), (LVDS_TC3_N), (LVDS_TC3_P), (LVDS_TD3_N), (LVDS_TD3_P), (LVDS_TE3_N), (LVDS_TE3_P), (LVDS_TA4_N), (LVDS_TA4_P), (LVDS_TB4_N), (LVDS_TB4_P), (LVDS_TC4_N), (LVDS_TC4_P), (LVDS_TD4_N), (LVDS_TD4_P), (LVDS_TE4_N), (LVDS_TE4_P), Check IC U502 and its peripheral control circuits.
  • Page 32 No picture on the display (2) Does not the picture come out when VHF/UHF is received? MAIN UNIT: Check each power IC and peripheral Check TU_VCC is applied to Tuner or not? components are correct or not. Is the DIF signal output from pin (8) and pin (9) of Check the tuner and its peripheral circuits.
  • Page 33 <External Input (HDMI_1)>No picture on the display (3) Does not the picture display when HDMI cable plugged into HDMI_1? Is the HDMI1_HPD detection function of Terminal Check the circuit between pin K29) of pin (19) of HDMI terminal (CN620) IC U502 and CN620. normal? Check the connection and setup with MAIN UNIT:...
  • Page 34 <External Input (HDMI_2)>No picture on the display (4) Does not the picture display when HDMI cable plugged into HDMI_2? Is the HDMI2_HPD detection function of Check the circuit between pin (K28) of pin (19) of a HDMI terminal (CN621) IC U502 and CN621 normal? Check the connection and setup with the external HDMI devices.
  • Page 35 <External Input(HDMI_3)>No picture on the display (5) Does not the picture display when HDMI cable plugged into HDMI_3? Is the HDMI3_HPDO detection function Check the circuit between pin (K27) of of pin (19) of a HDMI terminal (CN624) IC U502 and CN624 normal? Check the connection and setup with MAIN UNIT:...
  • Page 36 <External Input(HDMI_4)>No picture on the display (6) Does not the picture display when HDMI cable plugged into HDMI_4? Is the HDMI3_HPDO detection function Check the circuit between pin (K27) of of pin (19) of a HDMI terminal (CN624) IC U502 and CN623 normal? Check the connection and setup with MAIN UNIT:...
  • Page 37 <External input USB>No picture on the display (7) Does not the picture display when USB cable plugged into USB port? Change to correct .jpg or .jpeg or .png or Is USB stick video format correct? .bmp format. Main UNIT: Check the U6501 power manager V-in Is the USB +5V sent to pin (1) of and V-out and power enable function.
  • Page 38 <External Input (Component)>No picture on the display (8) Does not the picture display when RCA cable plugged into component? Is Component Y/Pb/Pr signal sent to pin Check the setting of an external input (2)/Y, (4)/Pb, (6)/Pr of CN6101? device that connects of CN6101 MAIN UNIT: Is Component Y/Pb/Pr signal sent to pin Check the circuits between IC U502 and...
  • Page 39 Power unit operation check for E70-C3 Are the power cord and harness in the Power cord and harness in the unit unit connected Line filter unit? L1 ,L2,L3 or RT1,RT2 is If F1 normal out of order? Does DB1 output 155V when AC...

  • Page 40: Chapter 5. Major Ic Informations

    CHAPTER5. MAJOR IC INFORMATIONS [1]MAJOR IC INFORMATIONS V6 7602B0 CFE3 1.1. U502 ( The Sigma Designs’ V6 7602, is an integrated 60/120Hz Multi-Format Decoder smart TV SoC with all the key technologies required for advanced connectivity. This single-chip solution supports channel decoding, audio decoding and encoding, video decoding, audio and video post-processing, 3D formatting, quad LVDS output, and smart TV functionality, enabled by a high-performance CPU and GPU.
  • Page 41 CK falling). All I/Os are synchronized with a single ended DQS or differential DQS pair in a source synchronous fashion. These devices operate with a single 1.5V ± 0.075V and 1.35V -0.067V/+0.1V power supply and are available in BGA packages. 1.3.

  • Page 42: Chapter 6.Block Diagram/Wiring Diagram

    CHAPTER 6.BLOCK DIAGRAM/WIRING DIAGRAM [1]BLOCK DIAGRAM...

  • Page 43: Power Management Block Diagram

    [2]POWER MANAGEMENT BLOCK DIAGRAM There are 1 part circuits in Power board of this project (fig.1), Power circuits which is a single layer board, There are 2 output in the power parts, one is interface board including audio and TV tuner et; the other is converter board circuit.+24V output is converter part.

  • Page 44: Wiring Diagram

    [3]WIRING DIAGRAM E70-C3...

  • Page 45: Main Unit Printed Wiring Board

    CHAPTER 7.PRINTED WIRING DIAGRAM [1]MAIN UNIT PRINTED WIRING BOARD TOP :E70-C3...
  • Page 46 BOTTOM: E70-C3...
  • Page 47 [2]POWER SCHEMATIC DIAGRAM- POWER BOARD WITH TOP/BOTTOM VIEW Top Layer...
  • Page 48 Bottom Layer...

  • Page 49: Key Unit Printed Wiring Board

    [3]KEY UNIT PRINTED WIRING BOARD E70-C3 [4] IR+LED+ALS UNIT PRINTED WIRING BOARD E70-C3...

  • Page 50: Chapter 8.Schematic Diagram

    CHAPTER 8.SCHEMATIC DIAGRAM [1]MAIN SCHEMATIC DIAGRAM 01 System POWER I...
  • Page 51 02 System POWER II...
  • Page 52 03 YPBPR AV INTERFACE...
  • Page 53 04 HDMI Interface...
  • Page 54 05 RF Silicon Tuner...
  • Page 55 06 Peripheral...
  • Page 56 07 Audio...
  • Page 57 08 Speaker...
  • Page 58 09 Panel LVDS Interface DRAM Interface V6 7602B0 CFE3...
  • Page 59 MII/GPIO/ServAD V6 7602B0 CFE3...
  • Page 60 12 V6 7602B0 CFE3 USB HUB & WIFI...
  • Page 61 13 V6 7602B0 CFE3 Power...
  • Page 62 14 V6 7602B0 CFE3 UI Interface 15 V6 7602B0 CFE3 LED Driver...

  • Page 63: Power Schematic Diagram

    [2]POWER SCHEMATIC DIAGRAM AC Input and EMI Filter:(fig.7) Fig.7 CN1 is a connector for connecting AC Power.F1 is fuse to protect all the circuit AC. Input voltage is single 110V. CY1, CY2, CY3, CY4 are used high frequency noise of primary between common GND.L4,L5,L6,CX1, CX2 is used to filter low frequency noise.
  • Page 64 Flyback Control(fig.8) & LED Circuit:(fig.9) Fig.8 Fig.9.
  • Page 65 U1 is a low cost Switched Mode Power Supply (SMPS) controller IC intended for flyback topologies.U1 operates in fixed frequency mode. To reduce EMI, frequency jitter has been implemented. For Continuous Conduction Mode (CCM) operation, slope compensation is integrated. The controller can be set to accept an over-power situation for a limited amount of time. In a typical application the mains input voltage can be detected by the VSENSE pin.

  • Page 66: Key Schematic Diagram

    [3]KEY SCHEMATIC DIAGRAM E70-C3...
  • Page 67 [4]IR+LED+ALS SCHEMATIC DIAGRAM E70-C3...

  • Page 68: Chapter 9.Parts Guide

    CHAPTER 9.PARTS GUIDE [1] SPARE PARTS LIST E70-C3 Recommended Spare Parts List Assembly Number/ Finish goods 75120CA00-600-G Region North America Description E70-C3 ATSC LCD TV Updated date 2015/02/10 Item Catalog Component NO. Object Description Usage Photo E70-C3/CAR07,Mot PCBA 01-70CAR07E-00 her Board...
  • Page 69 Wireless Card,PCI-E,IEEE802 060204Y00-600-G .11b/g/n,Realtak RTL8188ETV,G,WF AC Power Cable,400mm,+/-1 35071GY00-H36-G 5mm,18AWG,2pin +2pin,G AC Power Cable,420mm,+/-1 35070WU00-966-G 5mm,18AWG,2 Pin+2 Pin,G AC Power Cable,400mm,+/-1 35071J700-600-G 5mm,18AWG,2pin +2pin,G FOXCONN FFC Cable 351111500-600-G Assembly,600mm, +/-3mm,1mm,10,G FOXCONN FFC Antenna Cable 351111C00-GWV-G Assembly,601mm, +/-5mm,1mm,10,G FOXCONN FFC Cable 351111300-600-G Assembly,98mm,+ /-2mm,1mm,8,G...
  • Page 70 FOXCONN Cable 351111200-600-G Assembly,703mm, +/-3mm,0.5mm,51, FFC Cable Assembly,705mm, 351111F00-GWV-G +/-5mm,0.5mm,51, FFC Cable Assembly,591mm, 351111400-600-G +/-3mm,0.5mm,41, FFC Cable Assembly,593mm, 351111E00-GWV-G +/-4mm,0.5mm,41, Internal Antenna,2.4GHz,3.5 79011JU00-600-G dBi,30mm*5mm*11 mm,G,WA-M-LA-02- Speaker 57020YD00-707-G Unit,6ohm,10W,G, Speaker X78-10-E Speaker 57020YG00-35C-G Unit,6ohm,10W,G, BW0801-15F10 Speaker 570306600-02D-G Unit,6ohm,10W,G, X20090-0011...
  • Page 71 AC Power Cable,1850mm,+/-5 35071GY00-H36-G 0mm,18AWG,2pin+2 pin,G AC Power Cable,1800mm,+/-5 35070WU00-966-G 0mm,18AWG,2Pin+ 2Pin,G AC Power Cable,1850mm,+/-5 35071J700-600-G 0mm,18AWG,2Pin+ 2Pin,G Power AC Power Code Cable,1850mm,+/-5 350721F00-600-G Accessor 0mm,18AWG,2 Pin+2 Pin,G Remote Controller,IR,NEC,9 600156T00-886-G 40nm,14m,G,RC-90 51C-520...

  • Page 72: Cabinet Parts

    [2]CABINET PARTS E70-C3...

  • Page 73: Supplied Accessories

    [3]SUPPLIED ACCESSORIES...

  • Page 74: Packing Parts

    [4]PACKING PARTS...

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