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Service Manual

Nocolorforsomechannelprogram(blackandwhite)

Nocolorforsomechann
elprogram(blackandw
hite)

Verifyifthesame
problemexistsinother
channels

Yes

checkoutofpicture
andsoundsystem

No

No

Checkoutofpictureandsound
systemofthischannel

Changethechanneltotherightsound
system(PALBGSECAM/L)

Yes

Refertorelative
instructionsinthe
Manualforcoloradjust

Updatathesoftwareand

Stillhaving
problems

43

makethereboot;or
changethemaiboard

Model No.: 55DA5550

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Содержание 55DA5550

Страница 1: ...echnical 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...

Страница 2: ...his manual 6 1 4 How to Read this Service Manual 6 Using icons 6 Chapter 2 Specification 2 1 Specification list 8 2 2 External pictures four faces 9 Chapter 3 Disassemble and Assemble 3 1 LE55M7000 55...

Страница 3: ...22 Chapter 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 Me...

Страница 4: ...he 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...

Страница 5: ...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 fr...

Страница 6: ...UTION 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...

Страница 7: ...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 sta...

Страница 8: ...quipment 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 pl...

Страница 9: ...System NTSC ATSC Audio System MN Audio Output Power Built in W 2x1 0W 10W subwoofer Audio Output Power outer W No Total Power Input W 150W Voltage Range V AC 100V 240V Power Frequency Hz 50 60Hz Time...

Страница 10: ...Service Manual 2 2 External pictures four faces Front Side Up Side 9 Model No 55DA5550...

Страница 11: ...Service Manual Right Side Back Side 10 Model No 55DA5550...

Страница 12: ...which in the picture above 4 Remove the stand 3 1 4 Remove the Power Supply Module 3 1 2 Remove the Back Cabinet 3 1 4 Remove the Speaker 1 Remove the screws indicated by red circle in below picture 1...

Страница 13: ...Service Manual 3 1 6 Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated byred circle in below picture 12 Model No 55DA5550...

Страница 14: ...Location of Controls and Components 4 1 Board Location 13 B Board A Board C Panel No Parts number Description A Board main board B Board power board C Panel 712 55085 V0320 LCD Panel Model No 55DA5550...

Страница 15: ...display 4 2 2 Connector definition 14 IR Key Interface CN6 Pin number Signal name 1 GND 2 K7 3 K6 4 K5 5 K4 6 K3 7 K2 8 K1 9 K0 10 GND 11 IR 12 GRE 13 RED 14 5V LED Backlight control interface CN2 Pi...

Страница 16: ...Service Manual 15 Model No 55DA5550...

Страница 17: ...Service Manual 4 3 LCD Panel Backlight Unit LVDS CONNECTOR 16 Model No 55DA5550...

Страница 18: ...Service Manual 17 Model No 55DA5550...

Страница 19: ...Service Chapt 5 1 Acc 18 e Manual 0 er 5 In cessories Remo nstallat s ote Contro tion Ins l structio ons Ba atteries Model No 55DA5550...

Страница 20: ...de 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 inte...

Страница 21: ...3 CH TV 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 Press to select the input source Service Manual Chapter 6 Operatio...

Страница 22: ...al 6 2 Back Panel Controls 21 1 Earphone output 2 Coax output 3 Audio in input 4 Video Y in input 5 PbPr IN input 6 PC Audio input 7 VGA input 8 RF input 9 HDMI1 input 10 HDMI2 MHL input 11 HDMI3 ARC...

Страница 23: ...Service Manual 6 3 Setting Up Your Remote Control When using the remote control aim it towards the remote sensor on the TV Model No 55DA5550...

Страница 24: ...Service Manual Chapter 7 Electrical Parts 7 1 Circuit Diagram Model No 55DA5550...

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Страница 32: ...Service Manual 7 2 Wiring Connection Diagram 30 Model No 55DA5550...

Страница 33: ...main factory menu you can see the edition of the software like this BUILD TIME 2014 01 21 23 17 21 VERSION v1 0 8 1 2 How to exit If you want to exit this factory menu please press the button Exit on...

Страница 34: ...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...

Страница 35: ...VDS 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...

Страница 36: ...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 di...

Страница 37: ...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 instructi...

Страница 38: ...Service Manual 9 2 Mainboard IC Introduction Top view 36 2 1 3 4 5 6 7 8 9 Model No 55DA5550...

Страница 39: ...Service Manual Bottom view 37 Model No 55DA5550...

Страница 40: ...4 Audio Ampli er for subwoofer YAMAHA YDA164B 5 voltage convertor 5V to 3 3V LC1117CLTR33 U3 6 voltage convertor 5V to 1 8V_STB LC1117CLTRAD UL2 7 Main Flash Memory GD25Q32BSIG UF1 8 Mainchip MSD3393L...

Страница 41: ...Board Yes Check the CN2 BLON 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...

Страница 42: ...e main board has the right input according to the source TV COMPONENT AV VGA HDMI etc Yes Verify if UA4 has the right output Yes Check CN7 input is right No No Check the corresponding audio input circ...

Страница 43: ...upply 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 correspondin...

Страница 44: ...d 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...

Страница 45: ...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 relativ...

Страница 46: ...f 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 M...

Страница 47: ...D 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...

Страница 48: ...ch 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 conn...

Страница 49: ...S 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...

Страница 50: ...ire 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 sys...

Страница 51: ...eakage 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 s...

Страница 52: ...Sincere Forever Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China...

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