Haier L32R1, L40R1, L42R1, Service Manual

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CONTENT
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 .................................................................................................................................. 10
3.3.1 Function Description .......................................................................................................... 10
3.3.2 Connector definition.............................................................................................................. 11
3.4 LCD PANEL. ................................................................................................................................ 12
3.4.1 Function Description: ............................................................................................................ 12
3.4.2 Connector definition.............................................................................................................. 12
4. INSTALLATION INSTRUCTIONS.......................................................................................................... 13
4.1 External Equipment Connections ..................................................................................................... 13
4.2 HDMI CINNECTIONS.................................................................................................................... 19
5. OPERATION INSTRUCTIONS ................................................................................................................ 22
5.1 Front panel controls.......................................................................................................................... 22
5.2 Back panel controls .......................................................................................................................... 23
5.3 Setting Up Your Remote Control................................................................................................... 24
6. DISASSEMBLY INSTRUCTIONS ........................................................................................................... 25
6.1 whole machine.................................................................................................................................. 26
6.2 Base subassembly............................................................................................................................. 27
6.3 Back cover subassembly ............................................................................................................... 28
6.4 Screen bracket subassembly .......................................................................................................... 28
6.5 Front-frame subassembly .............................................................................................................. 29
6.6 Wire subassembly---- Connection Sketch Interpretat.................................................................... 30
6.6.1. Wire Photo............................................................................................................................ 30
6.6.2 Components List.................................................................................................................... 30
7. MEASUREMENTS AND ADJUSTMENTS............................................................................................. 31
8. BLOCK DIAGRAM AND CIRCUIT DIAGRAM .................................................................................... 34
8.1 BLOCK DIAGRAM ........................................................................................................................ 34
8.2 CIRCUIT DIAGRAM ...................................................................................................................... 34
9. WIRING CONNECTION DIAGRAM ...................................................................................................... 50
10. TROUBLE SHOOTING GUIDE............................................................................................................. 51
10.1. Simple check ................................................................................................................................. 51
10.1.1 LCD is not bright................................................................................................................. 51
10.1.2 No picture ............................................................................................................................ 51
10.1.3 No sound.............................................................................................................................. 52
10.2 PSU failure check ........................................................................................................................ 52
10.3 Panel failure................................................................................................................................. 53