SERVICE MANUAL LCD TV Model No. LT32C360 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.
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.
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 LT32C360 Screen Size 31.5 inch Aspect Ratio 16:9 Resolution 1920x1080 6.5 (GRAY TO Response Time (ms) GRAY) Angel of View 176o Color Display 16777216 No. of Preset Channels 99 OSD Language English Color System...
Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location B Board A Board Description A Board Main Board DC1JQ0M0100M B Board Power Board 514C3201M22 3-2 Main Board & AV Board - 08 -...
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 (J25, J2) high voltage Notes: J25-Pin 2: Backlight on/off: The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path.
Page 11
Service Manual Model No.: remote connector (J21) Keypad and connector (J22) - 10 -...
Service Manual Model No.: Speaker connectorJ26 Pin number Signal name Description RSPK+ RSPK+ RSPK- RSPK- LSPK- LSPK- LSPK+ LSPK+ 3-3. Power Board 3-3-1 Function Description: Supply power for Main board, Panel. &RQQHFWRUGH¿QLWLRQ - 11 -...
Service Manual Model No.: 3-4. LCD Panel - 12 -...
Page 14
Service Manual Model No.: 3-4-1 Function Description: Display the signal. &RQQHFWRU GH¿QLWLRQ Pin No. Symbol Description Note Power supply: +12V Power supply: +12V Power supply: +12V Power supply: +12V Ground Ground Ground Ground SELLVDS Select LVDS data format ODSEL Overdrive Lookup Table Selection Ground RX0-...
Page 15
Service Manual Model No.: Ground RXCLK- Negative of clock RXCLK+ Positive of clock Ground RX3- Negative transmission data of pixel 3 RX3+ Positive transmission data of pixel 3 Ground TST_AGE Aging Mode No connection Ground Ground - 14 -...
Service Manual Model No.: 4. Disassemble and assemble 4-1 Remove the Pedestal 4-3. Remove the adhesive tape (The location of the adhesive tape as follows) Remove the adhesive tape indicated on the ¿JXUH DERYH /D\ GRZQ WKH XQLW VR WKDW UHDU FRYHU faces upward 5HPRYH WKH IRXU VFUHZ IURP WKH UHDU FRYHU LQGLFDWHG ZLWK...
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 board - 17 -...
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 20
Service Manual Model No.: CHOOSE YOUR CONNECTION There are several ways to connect your television, depending on the components you want to connect and the quality of the signal you want to achieve. The following are examples of some different ways to connect your TV with different input sources. Choose the connection which is best for you.
Page 21
Service Manual Model No.: 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. This sequence is very important. - 20 -...
Service Manual Model No.: 5-2 HDMI Connections When the source device 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. No separated audio connection is necessary. How To Use If the source device supports Auto HDMI function, the output resolution of the source device will be automatically...
Page 23
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 24
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 1.SOURCE Display the input source menu. 2.MENUDisplay main MENU. 3.CH+/CH-:In TV mode press“CH+”or“CH-”to change the channel up and down.In MENU mode, press “CH+”or“CH-”to select items .In standby mode, press“CH+”or“CH-”to turn on the TV.
Service Manual Model No.: 6-3 Setting Up Your Remote Control 1:POWER:To set the TV to standby or power on. 2:NUMERIC KEY:For direct access to channels. 3:TV MENU:To display TV menu. POWER MUTE 4:CURSOR:To move within the menu. TV AUDIO 6:VOL+/- :To adjust sound level. 7:PIC:To switch picture mode.
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!
Service Manual Model No.: 9-2. Main board failure check 1) Black creen Is power LCD normal? Check QS,Q6 and the 2) White screen on VCC pins of CJ20 Check if Q1is working Signal on CJ20 Check if CJ20 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 CJ26 speakers Check if the power supply...
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 TUU2 Check if there is I2C signal at PIN4 &...
Page 50
Service Manual Model No.: 6) HDMI no picture or picture abnormal If J3 is R111,R112,R113,R114,R116, R117 Q11,Q12 - 49-...
Page 51
Service Manual Model No.: 7) PC no picture or picture abnormal - 50 -...
Page 52
Service Manual Model No.: 8) YPBPR, AV, SCART no picture or picture abnormal Check Y - 51 -...
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...
Page 58
Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com Printed in China...