Haier HL42XR1 I

9-3. Main board failure check

State: No Sound

No Sound

(All Mode)

ail

_Fail

Fail

Change Source input

Re-soldering orchange

IC U13

Re-soldering orchange

IC U55

Re-soldering orchange

IC U2

Change the Speaker

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 !