Page 1
SERVICE MANUAL LED TV Model No. LE4603-05 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.
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 6SHFL¿FDWLRQV..................3. Location of Controls and Components........... 3-1.
Page 3
Service Manual Model No.: 9. Trouble-shooting………….............. 9-1. Simple Check 9-2. Main Board Failure Check 9-3. Panel Failure - 02 -...
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
Service Manual Model No.: 1-3-6 Safety Check after Repairment &RQ¿UP WKDW WKH VFUHZV SDUWV DQG ZLULQJ ZKLFK ZHUH UHPRYHG LQ RUGHU WR VHUYLFH DUH SXW 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
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"...
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: ,FRQV DUH XVHG WR DWWUDFW WKH DWWHQWLRQ RI WKH UHDGHU WR VSHFL¿F LQIRUPDWLRQ 7KH PHDQLQJ RI each icon is described in the table below:...
Service Manual Model No.: 6SHFL¿FDWLRQV Model LE4603-05 Screen Size 46inch Aspect Ratio 16:9 Resolution 1920x1080 6.5 (GRAY TO Response Time (ms) GRAY) Angel of View 178 (H)/178 (V) Color Display 16.7M No. of Preset Channels 400 OSD Language English...
Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location A Board B Board Description A Board Main Board B Board Power Board 3-2 Main Board - 08 -...
Page 10
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. &RQQHFWRU GH¿QLWLRQ Main board connector Power connectors (J2,J25) Signal name Pin number Signal name Pin number BL ON/OFF BL-ADJUST BK ON /OFF...
Page 11
Service Manual Model No.: Keypad andremote connector (J28) STANDBY Speaker connectorJ26 Pin number Signal name Description RSPK+ RSPK+ RSPK- RSPK- LSPK- LSPK- LSPK+ LSPK+ - 10 -...
Service Manual Model No.: 3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. &RQQHFWRUGH¿QLWLRQ CON1 CON2 Pin number Signal name Pin number Signal name +12V +24V +24V +12V +24V +24V +5VSTB POWER ON/OFF - 11 -...
Page 13
Service Manual Model No.: 3-4. LED Panel MTC460BLU-B01F(HV460WU2-200) - 12 -...
Page 14
Service Manual Model No.: &RQQHFWRU GH¿QLWLRQ CNF1 Connector Pin Assi nment Pin No Pin No Symbol Description Symbol Description No Connection 2D/3D 2D/3D Signal Select C Data Left Right Eye Frame Sync. Second pixel negative LVDS Second pixel negative LVDS C Clock CH2[0]- differential data input.
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.: AV EQUIPMENT You can use the input and output terminals on the TV set as follows. VIDEO EQUIPMENT VIDEO EQUIPMENT TO VIDEO TO VIDEO OUTPUT INPUTS TO AUDIO INPUTS TO AUDIO OUTPUTS HDMI VIDEO EQUIPMENT with YPbPr Yellow (video) White(audio L) Red(audio R or Pr)
Page 20
Service Manual Model No.: STEPS: Be sure both the TV and computer are set to Power off. 1.Connect a VGA and audio cable. 2.Connect the power cord. VGA and audio cable 3.Power on the TV, switch to PC mode. not supplied 4.Power on the PC.
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) - 22 -...
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: 1HYHU FRQQHFW WKH $& OLQH FRUG SOXJ WR RWKHU WKDQ WKH VSHFL¿HG YROWDJH Use the attached power cord only.
Service Manual Model No.: 6. Operation Instructions Basal information 6-1 Front panel controls STANDBY VOL- VOL+ MENU SOURCE 1. SOURCE: Displays the input source Menu. 2. MENU: Displays the main MENU. 3. CH+/CH- In TV mode, press "CH+" or "CH-" to change the channel up and down. In MENU mode, press "CH+"...
Page 25
Service Manual Model No.: 6-3 Setting Up Your Remote Control REMOTE CONTROL 1:POWER:To set the TV to standby or power on. :In USB mode, used as reverse key, in teletext mode used as subpage key. : In USB mode, used as forword key, in teletext mode used as reveal key.
Page 26
Service Manual Model No.: TELETEXT Teletext is an information system broadcast by certain channels which can be consulted like a newspaper. It also offers access to subtitles for viewers with hearing problems or who are not familiar with the transmission language (cable networks, satellite channels, etc.) Press: You will obtain :...
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.
Service Manual Model No.: 8.2 How to update software Haier MSD306 F/W upgrade with USB SOP Step 1: Ready for F/W Upgrade 1.1 Prepare a USB memory . &RS\ WKH VRIWZDUH ¿OH PHUJELQ IURP \RXU FRPSXWHU WR WKH 86% PHPRU\ DQG UHPRYH it from computer’s USB port! Step 2: F/W Upgrade 2.1 AC ON...
Page 45
Service Manual Model No.: 9. Trouble shooting 9-1. Simple check - 44 -...
Page 46
Service Manual Model No.: 9-2. 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 - 45 -...
Page 47
Service Manual Model No.: 3) Panel display abnormally connector j20 is at normal level - 46 -...
Page 48
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 49
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 53
Service Manual Model No.: 9-3. 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 54
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 55
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 56
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 57
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...