Haier HL42XR1 1-3. How to read this Service Manual

1-2-6. Safety Check after Repairment

Confirm that the screws ,parts and wiring which were removed in order to service are put in the

original positions, or whether there are the portions 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. And be sure the safety of that.

Insuration Test

1. Unplug the plug from the AC outlet.

2. Remove the antenna terminal on TV and turn on the TV.

3. Insulation resistance between the cord plug terminals and the eternal exposure metal

should be more than M ohm by using the 500V insulation resistance meter

4. If the insulation resistance is less than M ohm, the inspection repair should be required.

If you have not the 500V insulation resistance meter, use a Tester.

External exposure metal: Antenna terminal Headphone jack

1-2-7. Ordering Spare Parts

Please include the following informations when you order parts. (Particularly the Version

letter)

1. Model number and Version letter

The model number can be found on the back of each product and the Version letter can

be found at the end of the serial number.

2. Part No. and Description

You can find them in your service manual

1-2-8. 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.

1-3. How to read this Service Manual

1-4-1. Using Icons

Icons are used to attract the attention ofthe reader tospecific information. Themeaning of each icon is

described in the table below:

Note:

A "note" provides information that is not indispensable, but may nevertheless be valuable to the

reader, such as tips and tricks.

Caution:

A "caution" is used when there is danger that the reader, through incorrect manipulation,

5

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 !