Table Of Contents - Haier HL42T Service Manual

1 .Warning ........................................................................................................................................................4
2. Specification.................................................................................................................................................6
3. LOCATION OF CONTROLS AND COMPONENTS ................................................................................7
3.1.Board Location ...................................................................................................................................7
3.2. Main Board.....................................................................................................................................7
3.2.1 Function Description ...............................................................................................................7
3.2.2 Connector definition................................................................................................................8
3.3 Power Board .................................................................................................................................. 11
3.3.1 Function Description: ......................................................................................................... 11
3.3.2 Connector definition.............................................................................................................. 11
3.4 LCD PANEL. ................................................................................................................................12
3.4.1 Function Description: ............................................................................................................12
3.4.2 Connector definition..............................................................................................................12
4. IN STALLATION INSTRUCTIONS.........................................................................................................14
4.1 External Equipment Connections .....................................................................................................14
4.2 HDMI CINNECTIONS....................................................................................................................20
5. OPERATION INSTRUCTIONS ................................................................................................................23
5.1 Front panel controls..........................................................................................................................23
5.2 Back panel controls ..........................................................................................................................24
5.3 Setting Up Your Remote Control...................................................................................................25
6. DISASSEMBLY INSTRUCTIONS ...........................................................................................................26
Remove the two screws, take out the remote control board .......................................................................26
6.1 whole machine..................................................................................................................................27
6.2 Back cover subassembly ...............................................................................................................27
6.3 Screen bracket subassembly ..........................................................................................................28
6.4 Front-frame subassembly ..............................................................................................................28
6.5 Wire subassembly---- Connection Sketch Interpretat....................................................................29
6.5.1. Wire Photo............................................................................................................................29
6.5.2 Components List....................................................................................................................29
7. MEASUREMENTS AND ADJUSTMENTS.............................................................................................29
8. BLOCK DIAGRAM AND CIRCUIT DIAGRAM ....................................................................................32
8.1 BLOCK DIAGRAM ........................................................................................................................32
8.2 CIRCUIT DIAGRAM ......................................................................................................................32
9. WIRING CONNECTION DIAGRAM ......................................................................................................48
10. TROUBLE SHOOTING GUIDE.............................................................................................................49
10.1. Simple check .................................................................................................................................49
10.1.1 LCD is not bright.................................................................................................................49
10.1.2 No picture ............................................................................................................................49
10.1.3 No sound..............................................................................................................................50
10.2 PSU failure check........................................................................................................................50
10.3 Panel failure.................................................................................................................................51
CONTENT
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