Haier 75UF5550, Service Manual

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Service Manual
Model
Model Model
Model No.:
No.: No.:
No.:
75UF5550
75UF5550 75UF5550
75UF5550
CONTENTS
CONTENTS CONTENTS
CONTENTS
Chapter
Chapter Chapter
Chapter 1.
1. 1.
1. General
General General
General Information
Information Information
Information
1-1. 1-1. 1-1. 1-1. Document Document Document Document Information Information Information Information ............................................................ ............................................................ ............................................................ .............................................................. .. .. ..3 3 3 3
1-2. 1-2. 1-2. 1-2. General General General General Guidelines................................................................... Guidelines................................................................... Guidelines................................................................... Guidelines..................................................................... .. .. ..3 3 3 3
1-3. 1-3. 1-3. 1-3. Important Important Important Important Notice....................................................................... Notice....................................................................... Notice....................................................................... Notice......................................................................... .. .. ..3 3 3 3
1-3-1. Follow the regulations and warnings ..................................................... 3
1-3-2. Be careful to the electrical shock ............................................................3
1-3-3. Electro static discharge (ESD)............................................................... .3
1-3-4. About lead free solder (PbF)...................................................................4
1-3-5. Use the genewing parts (specified parts) .............................................. 4
1-3-6 Safety check after repairment................................................................. 4
1-3-7. Ordering Spare Parts............................................................................. 6
1-3-8. Photo used in this manual .....................................................................6
1-4. 1-4. 1-4. 1-4. How How How How to to to to Read Read Read Read this this this this Service Service Service Service Manual Manual Manual Manual ........................................... ........................................... ........................................... ...............................................6 6 6 6
Using icons ...............................................................................................................6
Chapter
Chapter Chapter
Chapter 2.
2. 2.
2. Speci
Speci Speci
Specifi
fi fi
fication
cation cation
cation
2-1.
2-1. 2-1.
2-1. Speci
Speci Speci
Specifi
fi fi
fication
cation cation
cation list.......................................................................
list....................................................................... list.......................................................................
list.........................................................................
.. ..
..8
8 8
8
2-2.
2-2. 2-2.
2-2. External
External External
External pictures
pictures pictures
pictures (four
(four (four
(four faces).................................................
faces)................................................. faces).................................................
faces)....................................................
... ...
...9
9 9
9
Chapter
Chapter Chapter
Chapter 3.
3. 3.
3. Disassemble
Disassemble Disassemble
Disassemble and
and and
and Assemble
Assemble Assemble
Assemble
3-1.
3-1.
3-1. 3-1. 75UF5550
75UF5550
75UF5550 75UF5550 .................................................................................11
.................................................................................11
.................................................................................11 .................................................................................11
3-1-1. Remove the Stand.................................................................................11
3-1-2. Remove the Back Cabinet ....................................................................11
3-1-3. Remove the Mainboard.........................................................................11
3-1-4. Remove the Power Supply Module ......................................................11
3-1-5. Remove the Speaker.............................................................................11
3-1-6. Remove the Remote Control Board .....................................................12
3-1-7. Remove the Key Board.........................................................................12
Chapter
Chapter Chapter
Chapter 4.
4. 4.
4. Location
Location Location
Location of
of of
of Controls
Controls Controls
Controls and
and and
and Components
Components Components
Components
4-1. 4-1. 4-1. 4-1. Board Board Board Board Location Location Location Location ....................................................................... ....................................................................... ....................................................................... ......................................................................... .. .. ..13 13 13 13
4-2. 4-2. 4-2. 4-2. Mainboard Mainboard Mainboard Mainboard ............................................................................... ............................................................................... ............................................................................... ................................................................................. .. .. ..14 14 14 14
4-2-1. Function Description .............................................................................14
4-2-2. Connector definition ..............................................................................14
4-3. 4-3. 4-3. 4-3. Power Power Power Power Supply Supply Supply Supply Module Module Module Module ............................................................ ............................................................ ............................................................ .............................................................. .. .. ..15 15 15 15
4-3-1. Function Description .............................................................................15
1
1
1 1