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Service Manual

Model No.:

4-2. Mainboard

4-2-1. Function Description

Process signal which incept from exterior equipment then translate into signal that panel can

display.

4-2-2. Connector denition

CN18

CN6

14

IR & Key Interface

CN6

Pin number

Signal name

1

5V

2

RED

3

GRE

4

IR

5

GND

6

K0

7

K1

8

K2

9

K3

10

K4

11

K5

12

K6

13

K7

14

GND

Speaker connector CN18

Pin number

Signal name

1

ROUT+

2

ROUT-

3

LOUT-

4

LOUT+

48DR3505

Summary of Contents for 48DR3505

Page 1: ...ndividuals 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 2014 Qingdao Haier Electronics Co Ltd All rights reserved Unauthorized cop...

Page 2: ...s manual 6 1 4 How to Read this Service Manual 6 Using icons 6 Chapter 2 Speci cation 2 1 Speci cation list 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 3 1 48D3505 11 3 1 1 Remove the Stand 11 3 1 2 Remove the Back Cabinet 11 3 1 3 Remove the Mainboard 11 3 1 4 Remove the Power Supply Module 11 3 1 5 Remove the Speaker 11 3 1 6 Remove the Remote Control Board 12 3 1 7 R...

Page 3: ... 7 Electrical Parts 7 1 Block Diagram 23 7 2 Circuit Diagram 30 Chapter 8 Measurements and Adjustments 8 1 Service Mode 31 8 1 1 How to enter into Service Mode 31 8 1 2 How to exit 31 8 2 Measurements and Adjustments 31 8 2 1 The Main Menu 31 8 2 2 General Setting 32 8 2 3 Picture 32 8 2 4 Sound 33 8 2 5 Debug 33 8 3 Software Update 34 8 3 1 software update 34 Chapter 9 Trouble shooting 9 1 Simple...

Page 4: ...list up the potential hazard or risk for the service personnel to open the units and disassemble the units For example we need to describe properly how to avoid the possibility to get electrical shock from the live power supply or charged electrical parts even the power is off This symbol indicates that high voltage is present inside It is dangerous to make any king of contact with any inside part...

Page 5: ... removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 1 3 4 About lead free solder PbF This product is manufactured using lead free solder as a part of a movement within the consumer products industry at large to be environmentally responsible Lead free solder mu...

Page 6: ...trength CAUTION This is a ammable mixture Unless speci ed otherwise in this service manual lubrication of contacts is not required Capacitors may result in an explosion hazard 5 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped 6 Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid s...

Page 7: ...ize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted oor can generate static electricity suf cient to damage an ES device 1 3 7 Ordering Spare Parts Please include the following informations when you order parts Particularly the Version letter 1 Model number seri...

Page 8: ...y damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other places in this binder or in this manual where he she will nd additional information on a speci c topic 7 48DR3505 ...

Page 9: ...SC Audio System MN Audio Output Power Built in W 8W 2 Audio Output Power outer W No Total Power Input W 140W Voltage Range V AC100V 240V Power Frequency Hz 50 60Hz Time of Sleep Timer MINS 240Min Net Weight KG 22 7 lbs Gross Weight KG 21 8 lbs Dimensions with Stand 42 7 x 26 2 x 9 8 Dimensions without Stand 42 7 x 24 8 x 3 0 Service Manual Model No Chapter 2 Speci cation 2 1 Speci cation list 8 48...

Page 10: ...Service Manual Model No 2 2 External pictures four faces Front Side Up Side 9 48DR3505 ...

Page 11: ...Service Manual Model No Right Side Back Side 10 48DR3505 ...

Page 12: ...e Mainbord 1 Lay down the TV set 2 Remove the four screws from the stand which in the picture above 3 Remove the stand 3 1 2 Remove the Back Cabinet 3 1 5 Remove the Speaker Remove the Speaker indicated by red circle in below picture 1 Remove the screws indicated with red circles 2 Flip machine panel side up 3 Carefully raise the Front shell from bottom 11 48DR3505 48DR3505 ...

Page 13: ...Service Manual Model No 3 1 6 Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated by red circle in below picture 12 48DR3505 ...

Page 14: ...Service Manual Model No Chapter 4 Location of Controls and Components 4 1 Board Location 13 B Panel A Board No Model Description A Board TP MS3393 PC821 Mainboard B Panel ST4761B01 5 LCD Panel 48DR3505 ...

Page 15: ...or equipment then translate into signal that panel can display 4 2 2 Connector de nition CN18 CN6 14 IR Key Interface CN6 Pin number Signal name 1 5V 2 RED 3 GRE 4 IR 5 GND 6 K0 7 K1 8 K2 9 K3 10 K4 11 K5 12 K6 13 K7 14 GND Speaker connector CN18 Pin number Signal name 1 ROUT 2 ROUT 3 LOUT 4 LOUT 48DR3505 ...

Page 16: ...Service Manual Model No 4 4 LCD Panel Backlight Unit LVDS CONNECTOR CN1 Connector De nition 16 48DR3505 ...

Page 17: ...Service Manual Model No 17 48DR3505 ...

Page 18: ...Service Manual Model No Chapter 5 Installation Instructions 5 1 Accessories Remote Control 18 Batteries 48DR3505 ...

Page 19: ...ct HDMI mode Refer to the HDMI device user guide for how to operate C Connect a D type 15 pin VGA interface cable to the VGA video interface connector on the PC Connect the other end of the cable to the PC interface connector on the TV Tighten the screws on the D E VGA connectors and connect the audio cable not supplied to the audio input socket on the back of the TV Turn on the TV rstly and then ...

Page 20: ...V channel up 4 VOL Press to decrease the volume 5 VOL Press to increase the volume 6 MENU Press to select the main menu 7 INPUT Toggles between all the vailable input sources Service Manual Model No Chapter 6 Operation Instructions 6 1 Front Panel Controls 20 48DR3505 ...

Page 21: ... 4 Service Manual Model No 6 2 Back Panel Controls 21 1 Optical output 2 AV input 3 YPbPr intput 4 HDMI3 input 5 HDMI2 MHL input 6 HDMI2 input 7 VGA input 8 PC Audio input 9 RF input 10 Line out output 11 USB input 48DR3505 ...

Page 22: ...3 14 15 16 17 18 19 20 21 22 23 24 25 26 POWER INPUT USB Shortcut button CC HOME Program Number Channel selection RECALL button VOL VOL Volume selection CH CH Channel selection Mute Menu button Back button Exit button DISPLAY button SAP button Sleep button Wide button Audio button Picture Mode OK button Channel List Favorite program Play Pause button only for USB EPG button Fast Reverse only for U...

Page 23: ...ICN401 PICN402 PICN403 PICN404 PICN405 PICN406 PICN407 PICN408 PICN409 PICN4010 COCN4 PIE101 PIE102 COE1 PIE201 PIE202 COE2 PIH100 PIH101 PIH102 PIH103 PIH104 PIH105 PIH106 COH1 PIH200 PIH201 PIH202 PIH203 PIH204 PIH205 PIH206 COH2 PIH300 PIH301 PIH302 PIH303 PIH304 PIH305 PIH306 COH3 PIH400 PIH401 PIH402 PIH403 PIH404 PIH405 PIH406 COH4 PIH500 PIH501 PIH502 PIH503 PIH504 PIH505 PIH506 COH5 PIH600...

Page 24: ...OCL16 PICL1701 PICL1702 COCL17 PICL1801 PICL1802 COCL18 PICL1901 PICL1902 COCL19 PICL2001 PICL2002 COCL20 PICVBS10OUT01 COCVBS10OUT PIFB101 PIFB102 COFB1 PIFB201 PIFB202 COFB2 PIFB301 PIFB302 COFB3 PIFB401 PIFB402 COFB4 PIQF10B PIQF10C PIQF10E COQF1 PIR101 PIR102 COR1 PIR201 PIR202 COR2 PIR301 PIR302 COR3 PIR401 PIR402 COR4 PIR501 PIR502 COR5 PIR601 PIR602 COR6 PIR9901 PIR9902 COR99 PIRF301 PIRF30...

Page 25: ...PICN6010 PICN6011 PICN6012 PICN6013 PICN6014 COCN6 P I D K 1 0 A P I D K 1 0 K CODK1 PIQK20B P I Q K 2 0 C P I Q K 2 0 E COQK2 P I R F 5 0 1 P I R F 5 0 2 CORF5 P I R F 6 0 1 P I R F 6 0 2 CORF6 P I R F 7 0 1 P I R F 7 0 2 CORF7 P I R F 8 0 1 P I R F 8 0 2 CORF8 PIRF6501 PIRF6502 CORF65 PIRK101 PIRK102 CORK1 PIRK201 PIRK202 CORK2 PIRK301 PIRK302 CORK3 PIRK401 PIRK402 CORK4 PIRK501 PIRK502 CORK5 PI...

Page 26: ...01 PICH1802 COCH18 PICN101 PICN102 PICN103 PICN104 PICN105 PICN106 PICN107 PICN108 PICN109 PICN1010 PICN1011 PICN1012 PICN1013 PICN1014 PICN1015 PICN1016 PICN1017 PICN1018 PICN1019 PICN1020 COCN1 PIDC101 PIDC102 PIDC103 CODC1 PIQH10B P I Q H 1 0 C P I Q H 1 0 E COQH1 PIQH20B P I Q H 2 0 C P I Q H 2 0 E COQH2 PIQH50B P I Q H 5 0 C P I Q H 5 0 E COQH5 PIQH60B P I Q H 6 0 C P I Q H 6 0 E COQH6 P I R ...

Page 27: ...3 PICN904 PICN905 PICN906 PICN907 PICN908 COCN9 PICN1001 PICN1002 PICN1003 PICN1004 PICN1005 PICN1006 PICN1007 PICN1008 COCN10 PICN1501 PICN1502 PICN1503 PICN1504 COCN15 P I C V 1 0 1 P I C V 1 0 2 COCV1 P I C V 2 0 1 P I C V 2 0 2 COCV2 P I C V 3 0 1 P I C V 3 0 2 COCV3 PICV401 PICV402 COCV4 P I C V 5 0 1 P I C V 5 0 2 COCV5 PICV601 PICV602 COCV6 PICV701 PICV702 COCV7 PICV801 PICV802 COCV8 P I C ...

Page 28: ... C T 2 4 0 2 COCT24 P I C T 2 5 0 1 P I C T 2 5 0 2 COCT25 PICT2701 PICT2702 COCT27 PICT2801 PICT2802 COCT28 PICT3201 PICT3202 COCT32 P I C T 3 3 0 1 P I C T 3 3 0 2 COCT33 P I C T 3 4 0 1 P I C T 3 4 0 2 COCT34 P I D T 1 0 1 P I D T 1 0 2 P I D T 1 0 3 CODT1 PILT101 PILT102 COLT1 PILT201 PILT202 COLT2 P I L T 3 0 1 P I L T 3 0 2 COLT3 P I L T 4 0 1 P I L T 4 0 2 COLT4 PILT601 PILT602 COLT6 PILT70...

Page 29: ...2 COCA22 PICA2401 PICA2402 COCA24 PICA2501 PICA2502 COCA25 PICA2701 PICA2702 COCA27 PICA2801 PICA2802 COCA28 PICA2901 PICA2902 COCA29 PICA3001 PICA3002 COCA30 PICA3201 PICA3202 COCA32 PICA3301 PICA3302 COCA33 PICA3401 PICA3402 COCA34 PICN1701 PICN1702 PICN1703 PICN1704 COCN17 PICN1801 PICN1802 PICN1803 PICN1804 COCN18 PICNA201 PICNA202 PICNA203 PICNA204 PICNA205 PICNA206 PICNA207 COCNA2 PIDA10A PI...

Page 30: ...Service Manual Model No 7 2 Wiring Connection Diagram 30 48DR3505 ...

Page 31: ...end of the main factory menu you can see the edition of the software like this BUILD TIME 2014 09 15 23 45 32 VERSION v1 0 8 1 2 How to exit If you want to exit this factory menu please press the button Exit on the remote system will be out the factory mode menu 8 2 Measurements and Adjustments 8 2 1 The Main Menu In factory mode menu press up down button to choose the up down item press right or ...

Page 32: ...oose on or off in Dynamic Contrast 6 Power On Mode Choose on or off in Power On Mode 7 Mirror Control Choose on or off in Mirror Control 8 Front End Status 9 Timer Test 10 SSC 11 Erase Flash 12 PQ Advance Debug Choose on or off in PQ Advance Debug 13 Factory remote Open or close the Factory remote 14 Factory CH Export 8 2 3 PICTURE Adjust the Picture Mode Picture Curve White Balance and OverScan i...

Page 33: ...etting 1 LVDS Bit Mode choose the Bit 2 LVDS MAP choose the MAP 3 LVDS ODD Even choose ODD or Even 4 Bcaklight Adiust the value of backlight 5 Reset Panel Setting Date 6 6MX0 LVDS Map choose the 6MX0 LVDS MAP 7 6MX0 Channel choose the 6MX0 Channel 8 6MX0 Mirror choose the 6MX0 Mirror 9 6MX0 Demo choose the 6MX0 Demo 10 6MX0 Update 33 48DR3505 ...

Page 34: ... to a USB disk on the root directory 2 Insert the USB disk when the AC power is off 3 Turn on the AC power in turn to begin 4 Turn off the AC power until the indicator light fast twinkling 5 Pull out the USB disk and power on the television Note Do not turn off the TV while it is updating 34 48DR3505 ...

Page 35: ... by Fine Tune and MANUAL Scan No color for some channel program black and white Verify that the same problem exists on other channels Check the picture and sound systems Refer to the relevant instructions in the manual to adjust the colour Spots with some or all pictures Verify if the antennal is correctly connected Verify if the antennal is in good condition Make ne adjustment of channel Televisi...

Page 36: ...Service Manual Model No 9 2 Mainboard IC Introduction Top view 36 1 2 3 4 5 6 7 8 48DR3505 ...

Page 37: ...Service Manual Model No Bottom view 37 48DR3505 ...

Page 38: ... DC DC convertor 5V 1 8V for MSD3393LU U1 LC1117CLTRAD UL2 5 voltage convertor 5V to 3 3V_STB LC1117CLTR33 UL1 6 voltage convertor 5V to 1 15V_STB LC3406CB5TR UD1 7 voltage convertor 5V to 3V for tuner LC1117CLTR33 UT1 8 Tuner SDCL1005CR33JTDF RFT1 Please check the Schematic Diagram for the particular support 38 48DR3505 ...

Page 39: ...the Power Board Yes Check the CN2 BLO Backlight on off Yes No There s something wrong with FRC Verify if the DC DC convertor can output the right Voltage No Change the corresponding DC DC QB3 output 5V Yes No Verify if QM1 output Change the QM1 Yes Still having problems Change Panel Change LVDS wire 39 48DR3505 ...

Page 40: ...ify if the main board has the right input according to the source TV COMPONENT AV VGA HDMI etc Yes Verify if UA1 has the right output Yes Check CN17 input is right No No Check the corresponding audio input circuit you connect Verify if UA1 has the right power in No Change UA1 Still having problems Change Mainboard 40 48DR3505 ...

Page 41: ...he Power supply Verify if CN4 Pin3 4 has 5V input Yes Verify if CN2 Pin1 has 12V input Yes Verify if DC DC convertors have the right output Yes No No No Change Power board Change Power board Change corresponding DC DC convertor Still having Change Change the software 41 Problems Mainboard 48DR3505 ...

Page 42: ...fy if sound system is correct No Change sound system For ease of use recommend that customer format the picture and sound settings in the automatic option Still having problems Updata the software and make the reboot or change the maiboard 42 48DR3505 ...

Page 43: ...em exists in other channels Yes check out of picture and sound system No No Check out of picture and sound system of this channel Change the channel to the right sound system PAL BG SECAM L Yes Refer to relative instructions in the Manual for color adjust Updata the software and Still having problems 43 make the reboot or change the maiboard 48DR3505 ...

Page 44: ...en Check if the power cord co nnect well Yes Check if the Power board output 5V and 12V No No Reconnect the power cord with the outlet or Power board Replace the Power board pls Still having problems Check if Main board LVDS wire Panel are in good condition 44 48DR3505 ...

Page 45: ...CD Mis align between TCP and Panel Panel failure TCP failure Name Description Phenomena Failure cause V B D Vertical bar V Dim Vertal gray line V L D Vertical color line light or dark forever TCP H B D Horizontal bar H Dim Horizontal gary line H L D Horizontal line light or dark forever Service Manual Model No 9 4 Pannel Failure Failure Mode 45 48DR3505 ...

Page 46: ...tch Tine or rigidity arose Eyewinker inside Polarizer Eyewinker inside Polarizer Abnormal Display Bright and dark display alternately 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Part Name Dot Defect Polarizer Bubble Panel or Polarlzer Polarizer Scratch F inside Polarizer Abnormal Display Circuit Flashing Service Manual Model No 46 48DR3505 ...

Page 47: ...DS Black Screen B L normal only Black screen display Circuit Crosstalk FIIcker LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 IC short or jointion bad 3 Pannel and vsc connect bad Service Manual Model No 47 48DR3505 ...

Page 48: ...wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged Without backlight B L wire damaged B L wire open Operation abnormal or systemic noise Operation abnormal or systemic noise Short bitween lamp housing and wire Because consume power too much B L shut down B L shutdown in sometime F M F M inB L white balck Rotundity or wirel...

Page 49: ...leakage B L unit badness Brightness at bottom of LCM brighter than normal Mechanlcal or B L B L brightness asymmetric Uniformity Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage Service Manual Model No 49 48DR3505 ...

Page 50: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China ...

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