AWA MHDV2245-O3-D0 Service Manual
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AWA MHDV2245-O3-D0 Service Manual

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SERVICE MANUAL

LED TV
Model No.
MHDV2245-O3-D0
MSD306
Chassis
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

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Summary of Contents for AWA MHDV2245-O3-D0

  • Page 1: Service Manual

    SERVICE MANUAL LED TV Model No. MHDV2245-O3-D0 MSD306 Chassis WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

  • Page 2: Table Of Contents

    Service Manual Model No.: Chapter 1: General Information 1-1. Table of Contents 1. General Information................1-1. Table of Contents 1-2. General Guidelines 1-3. Important Notice 1-4. How to Read this Service Manual 2. Specifications..................3. Location of Controls and Components........... 3-1.
  • Page 3 Service Manual Model No.: 8. Measurements and Adjustments..…………......8-1. How to enter into the factory model 8-2. How to update software 8-2. How to enter into the hotel model 9. DVD OPERATION………….............. 9-2. DVD Trouble Shooting 10. Trouble-shooting … ……….............. 10-1.

  • Page 4: General Guidelines

    Service Manual Model No.: 1-2. General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 5: Safety Check After Repairment

    Service Manual Model No.: 1-3-6 Safety Check after Repairment Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the positions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades.

  • Page 6: Ordering Spare Parts

    Service Manual Model No.: Electrostatically Sensitive (ES) Devices Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"...

  • Page 7: How To Read This Service Manual

    Service Manual Model No.: 1-3-8. Photo used in this manual The illustration and photos used in this Manual may not base on the final design of products, which may differ from your products in some way. 1-4. How to Read this Service Manual Using Icons: Icons are used to attract the attention of the reader to specific information.

  • Page 8: Specifications

    Service Manual Model No.: 2. Specifications Model MHDV2245-O3-D0 Screen Size 21.5inch Aspect Ratio 16:9 Resolution 5 (GRAY TO Response Time (ms) GRAY) Angel of View Color Display No. of Preset Channels 400 OSD Language English Color System PAL/SECAM Audio System...

  • Page 9: Location Of Controls And Components

    Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location B Board A Board Description A Board Main Board 515C3206M01 514C2415M01 B Board Power Board LVDS WIRE 30433920301 3-2 Main Board - 08 -...

  • Page 10: Function Description

    Service Manual Model No.: 3-2-1 Function Description: Main Board Process signal which incept from exterior equipment then translate into signal that panel can display. 3-2-2 Connector definition Main board connector Power connectors (J2) Pin number Signal name BK ON /OFF POWER ON/OFF +5VSTB +12V...
  • Page 11 Service Manual Model No.: Keypad andremote connector (J28) Pin number Signal name Description KEY1 KEY0 POWER FOR REMOTE REMOTE CONTROL STANDBY LED_G LAMP GREEN LED_R LAMP RED Speaker connectorJ26 Pin number Signal name Description RSPK+ RSPK+ RSPK- RSPK- LSPK- LSPK- LSPK+ LSPK+ - 10 -...

  • Page 12: Power Board

    Service Manual Model No.: 3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. 3-3-2Connectordefinition Pin number Signal name Pin number Signal name +12V +12V +12V +12V +5VSTB POWER ON/OFF BK ON /OFF - 11 -...
  • Page 13 Service Manual Model No.: 3-4. LED Panel CLAA215FA04 V4 3-4-1 Function Description: Display the signal. 3-4-2 Connector de finition. PIN NO. REMARK FUNCTION RXO0- minus signal of odd channel 0(LVDS) RXO0+ plus signal of odd channel 0(LVDS) RXO1- minus signal of odd channel 1(LVDS) RXO1+ plus signal of odd channel 1(LVDS) RXO2-...
  • Page 14 Service Manual Model No.: RXOC- minus signal of odd clock channel (LVDS) RXOC+ plus signal of odd clock channel (LVDS) RXO3- minus signal of odd channel 3(LVDS) RXO3+ plus signal of odd channel 3(LVDS) RXE0- minus signal of even channel 0(LVDS) RXE0+ plus signal of even channel 0(LVDS) RXE1-...

  • Page 15: Disassemble And Assemble

    Service Manual Model No.: 4. Disassemble and assemble 4-1 Remove the Pedestal Lay down the unit so that rear cover faces upward Remove the one screw from the rear cover indicated with ○ Then remove the pedestal 4-2Remove the Back Cover Remove the these screw indicated on figure above by ○...

  • Page 16: Remove The Power Module

    Service Manual Model No.: 4-4 Remove the power module Then remove the power module 4-5 Remove the Main board Remove the two screw indicated on the figure above by ○ Then put the terminal bracket to the side Disconnected the coupler J20 J2 CON2 J10 J11 Remove the Main board...

  • Page 17: Remove The Speaker

    Service Manual Model No.: 4-7 Remove the speaker Take out the speaker 4-8 Remove the remote control Remove the screw, take out the remote control - 17 -...

  • Page 18: Installation Instructions

    Service Manual Model No.: 5. Installation Instructions 5-1 External Equipment Connections Accessories Battery User GUIDE Remote Control Antenna Connection Connect one end of a coaxial cable (not included) to the ANT IN jack on the back of your TV/DVD combo, then connect the other end of the cable into the antenna or cable TV wall outlet.
  • Page 19 Service Manual Model No.: INSTALLATION - 19 -...
  • Page 20 Service Manual Model No.: Note: Aerial connections:IEC(female). Input impendance:75 unbalanced. STEPS: Be sure both the TV and computer are set to Power off. 1.Connect VGA and audio cable. 2.Connect the power cord. 3.Power on the TV, switch to PC mode. 4.Power on the PC.

  • Page 21: Hdmi Connections

    Service Manual Model No.: 5-2 HDMI Connections When the source device(DVD player or Set Top Box) supports HDM How To Connect 1. Connect the source device to HDMI port of this TV with an HDMI cable(not supplied with this product). 2.
  • Page 22 Service Manual Model No.: Cable sample HDMI Cable (not supplied with the product) HDMI to DVI Cable ( not supplied with the product) Analog Audio Cable (Stereo to RCA type) (not supplied with the product) - 21 -...
  • Page 23 Service Manual Model No.: Power source TO USE AC POWER SOURCE Use the AC polarized line cord provided for operation on AC. Insert the AC cord plug into a standard polarized AC outlet. NOTES: ■ Never connect the AC line cord plug to other than the specified voltage. Use the attached power cord only.

  • Page 24: Operation Instructions

    Service Manual Model No.: 6. Operation Instructions Basal information 6-1 Front panel controls 1.SOURCE Display the input source menu. 2.MENUDisplay main MENU. 3.CH+/CH-:In TV mode press“CH+”or“CH-”to Remote Control SOURCE Display the input so Remote control sensor. change the channel up and down.In MENU mode, press MENU Display main MENU Indicator LED:...
  • Page 25 Service Manual Model No.: Remote control 6-3 Setting Up Your Remote Control BUSH|Full HD 1080p LED LCD TV | User Manual | Helpline:0845 604 0105 - 24 -...

  • Page 27: Electrical Parts

    Service Manual Model No.: 7. Electrical parts 7-1. Block diagram 1517 MSD306 - 26 -...

  • Page 28: Circuit Diagram

    Service Manual Model No.: 7-2. Circuit Diagram AV1_AR AV1_AL - 27 -...
  • Page 29 Service Manual Model No.: MSD306 POWER SUPPLY R269 R269 U37靠近CA16放置 1.31V/1100mA 1.32V 3.29V/380mA 3.3VU AMS1117-3.3 AMS1117-3.3 5Vstb 3.3VU C121 C121 C122 C122 C123 C123 C124 C124 C125 C125 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 0.1u NC/0.1u NC/0.1u R270 R270 R271 R271 3.29V/150mA...
  • Page 30 Service Manual Model No.: RX57 RX57 RX56 RX56 NC/V800AA NC/V800AA NC/V800AA NC/V800AA C185 C185 NC/1uF NC/1uF C217 C217 C213 C213 NC/1000pF NC/1000pF 1000pF 1000pF C226 C226 NC/1000pF NC/1000pF C223 C223 1000pF 1000pF R375 R375 NC/22K NC/22K C245 C245 C240 C240 NC/47P NC/47P NC/47P...
  • Page 31 Service Manual Model No.: 4.7K 4.7K 100pF C18 100pF 100pF C19 100pF 0.1uF 0.1uF 4.7nF 4.7nF 100pF 100pF 0.1uF 0.1uF - 30 -...
  • Page 32 Service Manual Model No.: NC/V800AA NC/V800AA NC/V800AA NC/V800AA NC/V800AA NC/V800AA NC/V800AA RX3 NC/V800AA - 31 -...
  • Page 33 Service Manual Model No.: NC/V800AARX16 NC/V800AA RX16 NC/V800AARX17 NC/V800AA RX17 NC/V800AARX18 NC/V800AA RX18 NC/V800AARX19 NC/V800AA RX19 NC/V800AARX20 NC/V800AA RX20 NC/V800AA NC/V800AA RX14 RX14 NC/V800AA NC/V800AA RX15 RX15 10K R100 R100 10K R101 R101 75R R104 R104 75R R105 R105 75R R106 R106 33pF C66 33pF...
  • Page 34 RX2BCLKN NC/V80010 NC/V80010 RX21 RX21 RX2BCLKP NC/V80010 NC/V80010 RX22 RX22 RX2B2N NC/V80010 NC/V80010 RX23 RX23 NC/V800AA NC/V800AA RX37 RX37 RX2B2P NC/V80010 NC/V80010 RX24 RX24 NC/V800AA NC/V800AA RX38 RX38 RX2B1N NC/V80010 NC/V80010 RX25 RX25 RX2B1P NC/V80010 NC/V80010 RX26 RX26 RX2B0N NC/V80010 NC/V80010 RX27 RX27...
  • Page 35 PAL /DVB-T SYSTEM R417 R417 POWER FOR ATV TUNER NC/0R NC/0R 3906 3906 RF_AGC_T RF_AGC RF_AGC IF_AGC_T 100R 100R IF_AGC IF_AGC 5.04V 449mA TDTC-G0X1D TDTC-G0X1D 5V-IF VTVCC1 0.1uF 0.1uF VOUT R126 R126 FB_56OHM_4A FB_56OHM_4A IF_OUT IF_OUT 100K 100K C100 C100 C101 C101 C102...
  • Page 36 Service Manual Model No.: RX53 RX53 NC/V800AA NC/V800AA RX52 RX52 NC/V800AA NC/V800AA NC/100K NC/100K R168 R168 NC/51K NC/51K R166 R166 RX54 RX54 NC/V800AA NC/V800AA RX55 RX55 NC/V800AA NC/V800AA - 35 -...
  • Page 37 Service Manual Model No.: R249 R249 R250 R250 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 8 6 4 2...
  • Page 38 Service Manual Model No.: 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 8 6 4 2 8 6 4 2 8 6 4 2 8 6 4 2 VddL VssQ VddQ VssQ VddQ VssQ VddQ...

  • Page 39: Wiring Connection Diagram

    Service Manual Model No.: 7-3 .Wiring Connection Diagram Name Connection Wire(For Speaker) Connection Wire(Power For Mainboard) LVDS Wire Connection Wire(For Keyboard and Remote) Connection Wire(Power For DVD Mainboard) Connection Wire( For DVD Mainboard) Connection Wire(12V input for power board) - 38 -...

  • Page 40: Measurements And Adjustments

    Service Manual Model No.: Model No.: OPERATION Measurements and Adjustments Installation Guide Channel Tuning : 0 Programme(s) Please select an OSD Language DTV : 0 Programme(s) Radio : 0 Programme(s) Cesky English Magyar Polski Fran ais Data: 0 Programme(s) Espanol Dansk Hrvatski Nederlands...

  • Page 41: Sound Menu

    Service Manual Model No.: NOTE: Picture Mode Standard Press teletext red button to storage the channels Color Temperature after manual tuning . Aspect Ratio 4). Program edit: Noise Reduction < > PICTURE Screen You can Delete ,Rename ,Move, Skip , FAV any programs.

  • Page 42: Option Menu

    Service Manual Model No.: Model No.: 7.EPG Menu(Electronic Program 5.OPTION MENU Guide). The fifth item of the MENU is the OPTION The EPG menu is used to look at what is being MENU. You can adjust the Menu language, broadcasted on DTV or Radio channel in the day. Audio language,Subtitle language etc.

  • Page 43: How To Enter Into The Factory Model

    Service Manual Model No.: 8.1 How to enter into the factory model 1. You can press "source-2-5-8-0" to go into factory setting. Presse the key "exit" to shut the factory setting. content: 1: ADC setup: set ADC value of YUV,VGA. It can also be auto-set. Adopt 100% color bar to yuv and Checkerboard signal to vga.

  • Page 44: How To Update Software

    Service Manual Model No.: 8.2 How to update software 7.2 FW Upgrade Haier MSD306 F/W upgrade with USB SOP Haier MTK5363 FW upgrade with USB SOP Step 1: Ready for F/W Upgrade Step 1: Ready for F/W Upgrade 1.1 Change the software file name to ”upgrade.pkg” ,eg: 1.1 Prepare a USB memory .

  • Page 45: How To Enter Into The Hotel Model

    Service Manual Model No.: 8.3 How to enter into the hotel model 1. You can press "source-1-0-0-1" to go into the hotel model. Presse the key "exit" to shut the hotel model. Content: 1.Hotel Mode: Hotel mode switch Panel key lock 2.Panel Key Lock: Hotel mode can adjust the maximum volume 3.Max Volume:...
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  • Page 51: Trouble-Shooting

    Service Manual Model No.: 10. Trouble shooting 10-1. Simple check - 50 -...

  • Page 52: Main Board Failure Check

    Service Manual Model No.: 10-2. Main board failure check 1) Black creen Is power LCD normal? Check Q5,Q6 and the 2) White screen on VCC pins of J20 Check if Q1is working Signal on J20 Check if J20 is - 51 -...
  • Page 53 Service Manual Model No.: 3) Panel display abnormally connector j20 is at normal level - 52 -...
  • Page 54 Service Manual Model No.: 4) No sound No sound Check the input Check if there is sound input source signal Check if the volume control is Reset at 0 level or muted volume Check the Check if there is output at speakers Check if the power supply Check if there is +12V input at...
  • Page 55 Service Manual Model No.: 5）TV failure TV no channel Fix the RF Check if there is RF signal input Check the power Check if there is supply circuit to +5V at PIN6 of this PIN Check if there is I2C signal at PIN4 &...
  • Page 56 Service Manual Model No.: 6) HDMI no picture or picture abnormal If J13 is R111,R112,R113,R114,R116, R117 Q11,Q12 - 55 -...
  • Page 57 Service Manual Model No.: 7) PC no picture or picture abnormal - 56 -...
  • Page 58 Service Manual Model No.: 8) YPBPR, AV, SCART no picture or picture abnormal Check Y - 57 -...

  • Page 59: Panel Failure

    Service Manual Model No.: 10-3. Pannel failure Failure Mode Part Name Description Phenomena Failure cause Block Defect :TCP cracking or cracking Dim or L/D :TCP Sunken V B/D Vertical bar :TCP lead cracking :ACF bonding short :Awful environment and something electric enter V Dim Vertal gray line into LCD...
  • Page 60 Service Manual Model No.: Part Name Description Phenomena Failure cause I n c o m i n g I n s p e c t i o n Standard Bright dot dark dot in Dot Defect pannel Bladder between Polarizer and top glass Polarizer Bubble Bladder in Polarizer...
  • Page 61 Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause White Screen B/L normal, only white screen display M a y b e c a u s e d by surge current Black Screen B/L normal, and EDS only Black screen display FIIcker...
  • Page 62 Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause Mechanlcal When Caused Nolse turn panel,appear b y M e c h a n i c a cacophony noise of backlight unit Ripple Connectric circle Causeed by between mechanism and pannel B/L off...
  • Page 63 Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause Brightness B/L unit badness at bottom of LCM Light leakage brighter than normal B / L b r i g h t n e s s Sheet in B/L unit Mechanlcal or B/ asymmetric is uneven...

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