Haier HL42XR1 !

Flashing Bright and dark

display alternately

3.Pannel and vsc connect bad

Failure Mode

Part Name

White

Screen

Black

Screen

Circuit

Flicker

Abnormal

Color

Abnormal

Color

Description

B/L normal, only

white screen

display

B/L normal, only

Black screen

display

Crosstatk

Only color

abormal

Only color

abnormal

Phenomena

!Failure cause

Maybe caused by surge current and EDS

LCD Vcom imbalance

Capacitance improper bring crosstalk inside LCD

pannel

1.Chip lose action

2. IC short or jointion bad

3.Pannel and vsc connect bad

Failure Mode

Part Name Description Phenomena Failure cause

When turn

Mechanical Caused by Mechanica noise of backlight

panel,appear

Noise unit

cacophony

Ripple

B/L off

B/L dark

B/L wire

damaged

Connectric circle

B/L lose action

B/L brightness

darker than normal

B/L wire damaged

Causeed by between mechanism and

pannel

*Connect badness between

electrode

*Connectbadness

Shortbetween wire and electrode

Operation abnormal or systemic noise

wire and

Contents

Main MSERVICE MANUAL COLOR TV Customer Model: HL42XR1 Service Model: HL42XR1a CHASSIS: MTK5380L WARNING CONTENTS 4. Disassemble and assemble .............................................12 Installation Instructions 6. Operation Instructions ...................................................... 23 Page 1. General Information 1-1 General Guidelines 1-2 Important notice 1-3. How to read this Service Manual 2. Specification 3. LOCATION OF CONTROLS AND COMPONENTS Page Page Page Page 3-4. LCD Panel 3-4-1 Function Description: Display the signal. 3-4-2 Connector definition Page Page 4-5 Remove the power module 4-8 Remove the keypad control 4-6 Remove the Main board 4-7 Remove the remote control 5.installationinstruction Externa| Equipment Connections -p-p 'v.--qF_ 88 5.1 External Equipment Connections Choose Your Connection 0@ "@',o @@ @@ n [] External A/V Source Setup Connecting a DVD player # Connecting a DTV(digitai TV) Digital Set=top Box Connecting a digital audio output @ @@ 5.2 HDNll and DVI Connection 2O Cable sample Connecting Headphones Power source 6. Operation Instructions Basal information HL26K1/HL32K1/HL32XK1/HL42XK1 i iili.................... i o @ o@ @ oo o @ 6-3 Setting Up Your Remote Control @-- Function introduction @ --@ 7. Electrical parts 7-1. Block diagram 7-2. Circuit Diagram 26 MT8292 L o T ....../ f.....4 d......... _oo_o I,. 5 ouTI.... t __ ,O--OA ..... C0402/SMD 0.8 X(1+1_2K) = 1.2V I i!, A 1 1 1_,_o,o_o,1 1f__000_,_yO2200F10V_,000F10V,O_._oF _%.10F T tq ,ov) 1,9,15+12v <<>> 14+9v _ ,N_OUT_ A 9v I I 033sMDrER ! 1 / / J <<>> POWER DOWN RESET# CIRCUIT DV33 ............. .............T .T Tc'.T' ..... .... ....>./ J_ J_ F_ TS F2,s DT. oF,S T. oF/SMDT oF,SoT oF,SoT oF,So o ;o IvD o Ly88.3v7_oFTloF-- oF-- oFTloF o.1oF O0 0 ,SMO' DDR#1 ? ToH402,sMTo0402,s_To0402,s_To0402,s_080_,s_o * 2_ U ICE mode O O i t 10_4 iD4_It_81 t_82 t_83 t_84 t_88 1_8_ t_80 t_88 1_8_ //lf...... R212G ____ _ ,_1_-_- AV33_OM_ _ VERTICAL MOUNT ............. ll LVDS OUT ........ 1 ...... TT '_4.... .....D12:I......... _,....Ii@4 il.... :_...............il.... II ................ II .......... DI:III:...... soG vo so oporto1 104 04t EEP OM24002L ] r ] r d vBs3I s_o GND_UNEm m_ GNOTUNEm ql_l GNO TUNER ............................A..... ....... T.........T.... T ........._ .... T ........._-.... ...... II ............ T lF elco17o ADCOUTR 7 HPOL n HPGND a & //// / .... ...v .......... = ..... II.........A...... TO:AMP ....._UT...._i A_OUT.... . _A_. <<>> _AR. All capacitor must be >=35V 7-3 .Wiring Connection Diagram Pov,,,,pp modoi J J Wr k .;_i \._ <i 8. Measurements and Adjustments Page Page Page Page Page Remark: Thedate ofthe chart onlyis a example,pleasedon'tadjustthe factorymodebase onit. 9. Trouble shooting 9-1. Simple check Horiaontal/vertical pictureshaking Televisionoutof control I bars ]i check. ,47 I I] _ J Y ] I State= No picture I 9-4. Pannel failure TCP (C) Panel or Polarizer Bladder between Polarizer and top glass Tine or rigidity arose !