Insignia MT5305 Service Manual
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Insignia MT5305 Service Manual

Insignia MT5305 Service Manual

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LCD Television
Service Manual
Chassis
MT5305
Product Type
Ver 1.0
June 2010

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Summary of Contents for Insignia MT5305

  • Page 1 LCD Television Service Manual Chassis MT5305 Product Type Ver 1.0 June 2010...

  • Page 2: Table Of Contents

    Contents Contents..................................- 2 - Service Manual ................................- 3 - 1. Precautions and notices.............................- 3 - 1.1 Warning..............................- 4 - 1.2 Notes...............................- 7 - 2. Product Function Specifications ........................- 9 - 2.1 Product Function.............................- 9 - 2.2 Remote Control Spec..........................- 9 - 2.3 Specifications............................- 9 - 3.

  • Page 3: Service Manual

    Service Manual 1. Precautions and notices BEFORE SERVICING THE LCD TV, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. USE ONLY MANUFACTURER SPECIFIED REPLACEMENT PARTS WHEN SERVICING. USE OF NON-AUTHORIZED PARTS WILL VOID THE MANUFACTURE'S WARRANTY Proper service and repair is important to the safe, reliable operation of all Equipment. The service procedures recommended by Bestbuy and described in this Service Guide are effective methods of performing service operations.

  • Page 4: Warning

    performed by an experienced electronics techician trained in the proper Television safety and service methods and procedures. Hereafter throughout this manual. 1.1 Warning 1.1.1 Critical components having special safety characteristics are identified with a by the Ref. No. in the parts list. Use of non-manufacturer's recommended parts may create shock, fire, or other hazards.Under no circumstances should the original design be modified or altered without written permission from Bestbuy.
  • Page 5 Always disconnect the power cord from AC outlet before replacing parts or modules. 1.1.3 To prevent electrical shock, use only a properly grounded 3 prong outlet or extension cord. 1.1.4 When replacement parts are required, be sure to use replacement parts specified by the manufacturer or have the same characteristics as the original part.
  • Page 6 > High humidity areas > In an area where any water could enter or splash into the unit. High humidity and water could damage the product and cause fire. (3) If a foreign substance (such as water, metal, or liquid) gets inside the panel module, immediately turn off the power.

  • Page 7: Notes

    1.2 Notes Notes on Safe Handling of the LCD panel and during service The work procedures shown with the Note indication are important for ensuring the safety of the product and the servicing work. Be sure to follow these instructions. •...
  • Page 8 matter. • Be sure to handle the circuit board by holding the large parts as the heat sink or transformer. Failure to observe this precaution may result in the occurrence of an abnormality in the soldered areas. • Do not stack the circuit boards. Failure to observe this precaution may result in problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge.

  • Page 9: Product Function Specifications

    2. Product Function Specifications 2.1 Product Function 2.2 Remote Control Spec 2.3 Specifications - 9 -...
  • Page 10 NS-55E560A11_10-0369_MAN_V1_English.book Page 5 Wednesday, April 21, 2010 2:02 PM Insignia 55" LED-LCD TV, 1080p Front Side Note To turn on your TV using the (power) button on your TV, press twice. The presses must be within five to seven seconds of each other. The first time you press , the button labels appear on the screen.

  • Page 11: Remote Control

    NS-55E560A11_10-0369_MAN_V1_English.book Page 6 Wednesday, April 21, 2010 2:02 PM NS-55E560A11 Insignia 55" LED-LCD TV, 1080p Back Remote control POWER INP UT MUTE PICTURE AUDIO ZOOM GUIDE IN FO EXIT RECALL MENU ENTER # Item Description V OL+ V OL- Connect the video for a component video device to these jacks.

  • Page 12: Using The Remote Control

    NS-55E560A11_10-0369_MAN_V1_English.book Page 7 Wednesday, April 21, 2010 2:02 PM Insignia 55" LED-LCD TV, 1080p 2 Insert two AAA batteries into the battery # Button Description compartment. Make sure that the + and – Press to select the audio mode for an analog channel.

  • Page 13: Specifications

    NS-55E560A11_10-0369_MAN_V1_English.book Page 30 Wednesday, April 21, 2010 2:02 PM NS-55E560A11 Insignia 55" LED-LCD TV, 1080p Specifications Legal notices Design specifications are subject to change without FCC Part 15 notice. Dimensions and weight specifications are This device complies with Part 15 of the FCC Rules. Operation of approximate.

  • Page 14: Lcd Panel Spec

    3. LCD Panel Spec LTA550HJ05\JK\ROH Panel Model LTA550HJ05\JK\ROH SN 1068075 3.2 General Description - 10 -...

  • Page 15: General Features

    3.3 General Features - 11 -...

  • Page 16: Chassis Layout And Overall Wiring Diagrams

    4. Chassis Layout and Overall Wiring Diagrams Boards and Chassis Layout Description Part No. Type/Model PCB/ Model Main Board 123834 RSAG2.908.1794\ROH RSAG7.820.2029\VER.C\ROH Power Board 125676 RSAG2.908.1912-1\ROH RSAG7.820.2194\VER.C\ROH Led Board 123069 RSAG2.908.1731\ROH 40RSAG7.820.1968\VER.A\ROH Keypad PCA 125911 RSAG2.908.1724-8\ROH 15RSAG7.820.1959\VER.B\ROH IR Board 121225 RSAG2.908.1566-3\ROH 30RSAG7.820.1725\VER.C\ROH - 12 -...

  • Page 17: Factory/Service Osd Menu And Adjustment

    5. Factory/Service OSD Menu and Adjustment 5.1 To enter the Factory OSD Menu First in the “Factory Option” item “Mode” choose “M” or “U”, default is “U”. M-Can enter factory mode with factory RC or user RC. U-Can enter factory mode only with user’s RC. Note: Mode “M”...
  • Page 18 Notes: 5.2.2 Factory Option Item Default Options Notes MODE M, U Note: MODE “M” is only used for factory production. 5.2.3 Version Info Item Default Options Note Software version Version The date of current version Date Note: Software version info of the TV, readable only. 5.2.4 Clear the EEPROM Item Meaning...

  • Page 19: Designer Menu

    5.3 Designer Menu 5.3.1 Video Mode NS-55E560A11 Standard Component HDMI R Gain G Gain B Gain Offset Component HDMI R Offset G Offset B Offset Cool Component HDMI R Gain G Gain B Gain Warm Component HDMI R Gain G Gain B Gain - 15 -...
  • Page 20 5.3.2 Video Curve: NS-55E560A11 Component HDMI Bright Max Bright Min Bright Mid Contrast Contrast Min Contrast Mid Saturation 1000 Saturation Saturation Hue Max Hue Min Hue Mid Sharp Max Sharp Min Sharp Mid 5.3.4 Volume Curve NS-55E560A11 AV/ S-Video component HDMI - 16 -...

  • Page 21: To Exit The Aging Mode

    Note Set Downmix to “Lt/Rt”. 5.4 To Exit the Aging Mode If There is a red “M” moving on the screen, it means the TV is in Aging mode. To exit the Aging mode, use your user RC, and enter 8->0->8 ->7 in sequence. Note: The above Factory/Service OSD Menu are reference only, please refer to the actual units...

  • Page 22: Software Upgrading

    6.Software Upgrading Before upgrading, read the following. 1 Before upgrading Write down the ADC Calibration values of the channel of VGA and component 2 Upgrade the software. 3 To clear the EEPROM . A Select the item “Clean Unprotected”. B Press VOL+ button to clear the EEPROM data. C Close the OSD menu after 5 seconds.
  • Page 23 Select the default value, the driver will be installed step by step. 6.2.2 Hardware connecting Connect the unit to your pc with a USB-to-serial port cable. USB port connects to your pc, and serial port to the TV’s VGA port. USB connector: to PC.
  • Page 24 - 20 -...

  • Page 25: Upgrading With The Mtktool

    6.3 Upgrading with the MtkTool MTKtool is a green program needing no installation. It is saved in the folder . There are five folders/files in this folder altergether. The MtkTool using log is restored in the MtkLog folder. It records the running time and date whenever the tool is used.
  • Page 26 selsect “NOR”,click “OK” and enter the MtkTool main interface, see the following picture. Flash chip model Please refer to follow steps to update the software: 1—Select mode of Flash chip to MT5387 as the below picture. 2—Refer to the next page instruction to select the communicate port. 3—Press the icon beside the baud rate and make sure it is green as the below picture.
  • Page 27 Information upgrade process - 23 -...
  • Page 28 Open “Device Manager” and find which port is connected with the TV. In above picture, COM4 is connected to the TV; so, select “COM4” in the MtkTool main interface. Select the right baud rate according to chip model. For this unit( chip model is MT5387), select 115200. Note: Where or not click the “Auto Set Flash Baud Rate”...
  • Page 29 - 25 -...

  • Page 30: Troubleshooting

    7. Troubleshooting 7.1 Troubleshooting for Remote Control Remote control does not work Try new batteries Replace battery Replace RC Replace remote control Check IR receiver Change Led & IR board Replace Led & IR BD Change Led & IR cable Replace Led &...

  • Page 31: Troubleshooting For Function Key

    7.2 Troubleshooting for Function Key Buttons does not work Check solder connections and Check switches see if any switches are stuck. Replace Key BD Check key board Check Key BD cable Change Key BD Replace main board - 27 -...

  • Page 32: Tv Won't Power On

    7.3 TV won’t Power On TV won’t power on Make Sure Power Check Power source is live light? Output Replace BLUE Check Power Power Cord Cord Check/replace IR Only BD or Keypad one works Try Power on by RC and Button Check signal Panel Bright Source...

  • Page 33: Troubleshooting For Audio

    7.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board Power Supply Board - 29 -...

  • Page 34: Troubleshooting For Tv/Vga/Hdmi Input

    7.5 Troubleshooting for TV/VGA/HDMI input No picture on the screen Check Signal Source Make sure signal source is available Reconnect Check connect Replace cable Check cable Replace main board - 30 -...

  • Page 35: Troubleshooting For Ypbpr Input

    7.6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check Source Device Reconnect Check connect Check Wires (Green Blue, Red) Replace wires Replace main board - 31 -...

  • Page 36: Troubleshooting For Video/S-Video Input

    7.7 Troubleshooting for Video/S-Video input No picture on the screen Check Source work or not Check Signal Source Reconnect Check connect Replace Cable/Wires Check Cable/ Wires Replace main board - 32 -...

  • Page 37: Explode View And Explode Bom List

    8. Explode View and Explode Bom List 9. Schematic circuit diagram - 33 -...
  • Page 39 1064039 RSAG6.150.719\ROH Bracket Unit 1068716 Power Cord YS-05-2-VH-1-3white\ROH 1068385 Terminal Bracket RSAG8.041.246\ROH 1068386 Terminal Bracket RSAG8.041.247\ROH 1069620 Rating Label MP-J101227\Insignia\55USA\ROH 1044008 Screw GB/T 818-2000 M6X12 BLACK\ROH 1066211 Base Unit RSAG6.121.086\Safefilm\Z0\ROH Bracket 1063804 RSAG8.078.687\Z0\ROH 1068393 Bottom Label RSAG8.804.3622\ROH 1068382 Side Label RSAG8.804.3621\ROH...
  • Page 40 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title INDEX INDEX INDEX Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 41 Title Title POWER AND INVERTOR POWER AND INVERTOR POWER AND INVERTOR Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet...
  • Page 42 Title Title Title MT5387 IC MT5387 IC MT5387 IC Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Custom Custom Custom Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet...
  • Page 43 Hisense Electric Co.,LTD Title Title Title DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 44 Hisense Electric Co.,LTD Title Title Title DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 45 Hisense Electric Co.,LTD Title Title Title DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 46 470uF/10V Title Title Title DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 47 Hisense Electric Co.,LTD Title Title Title DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER DIGITAL/ANALOG POWER Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 48 Hisense Electric Co.,LTD Title Title Title DDR2 DRAM DDR2 DRAM DDR2 DRAM Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 49 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title PERIPHERAL PERIPHERAL PERIPHERAL Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 50 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title TUNER TUNER TUNER Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 51 Hisense Electric Co.,LTD Title Title Title COMPONENT/AV INPUT COMPONENT/AV INPUT COMPONENT/AV INPUT Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 52 Hisense Electric Co.,LTD Title Title Title COMPONENT/AV INPUT COMPONENT/AV INPUT COMPONENT/AV INPUT Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 53 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title HDMI HDMI HDMI Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 54 Hisense Electric Co.,LTD Hisense Electric Co.,LTD Title Title Title LVDS/IR/KEY LVDS/IR/KEY LVDS/IR/KEY Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...
  • Page 55 AMP AND MUTE AMP AND MUTE AMP AND MUTE 33uH 33uH Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet...
  • Page 56 Title Title 0R0/NC 0R0/NC HEADPHONE/AUDIO OUT HEADPHONE/AUDIO OUT HEADPHONE/AUDIO OUT Size Size Size Document Number Document Number Document Number MT5305 MT5305 MT5305 Date: Date: Date: Friday, January 29, 2010 Friday, January 29, 2010 Friday, January 29, 2010 Sheet Sheet Sheet...

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