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Haier
LCD TV
48DR3505
Haier 48DR3505 User Manual
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SERVI
CE
MANUAL
LED
TV
Model
No.
MSD3393LU
Chassis
WARNING
This
service
information
is
designed
for
experienced
repair
technicians
only
and
is
not
designed
for
use
by
the
general
public.
It
does
not
contain
warnings
or
c
autions
to
advise
non-technical
individu
als
of
potential
dangers
in
attempting
to
service
a
product.
Products
powe
red
by
electricity
should
be
s
erviced
or
repaired
only
by
experienced
professional
technicians
.
Any
attempt
to
service
or
repair
the
product
or
products
dealt
with
in
t
his
service
information
by
anyone
else
could
result
in
s
erious
injury
or
death.
©2014
Qingdao
Haier
Electronics
Co.,
Ltd.
All
rights
reserved.
Unauthorized
copying
and
distribution
is
a
v
iolation
of
law.
48DR3505
2
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
2
Chapter 1. General Information
4
Document Information
4
General Guidelines
4
Important Notice
4
Follow the Regulations and Warnings
4
Be Careful to the Electrical Shock
4
Electro Static Discharge (ESD)
4
About Lead Free Solder (Pbf)
5
Use the Genewing Parts (SpeciEd Parts)
5
Safety Check after Repairment
5
Ordering Spare Parts
7
Photo Used in this Manual
7
How to Read this Service Manual
7
Using Icons
7
Chapter 2. SpeciCation
9
SpeciCation List
9
External Pictures (Four Faces)
10
Chapter 3. Disassemble and Assemble
12
Remove the Stand
12
Remove the Back Cabinet
12
Remove the Mainboard
12
Remove the Speaker
12
Remove the Remote Control Board
13
Chapter 4. Location of Controls and Components
14
Board Location
14
Mainboard
15
Function Description
15
Connector DeNition
16
LCD Panel
16
Chapter 5. Installation Instructions
18
Accessories
18
External Equipment Connections
19
Chapter 6. Operation Instructions
20
Front Panel Controls
20
Back Panel Controls
21
Setting up Your Remote Control
22
Chapter 7. Electrical Parts
23
Circuit Diagram
23
Chapter 8. Measurements and Adjustments
31
Service Mode
31
8-1-1.How to Enter into Service Mode
31
8-1-2.How to Exit
31
Measurements and Adjustments
31
The Main Menu
31
General Setting
32
Picture
32
Sound
33
Software Update
34
Chapter 9. Trouble Shooting
35
Simple Check
35
Mainboard IC Introduction
36
Mainboard Failure Check
39
Pannel Failure
45
4
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Haier 48DR3505 Specifications
General
Display Technology
LCD
Screen Size
48 inches
Refresh Rate
60 Hz
HDMI Ports
3
USB Ports
1
Smart TV
No
Built-in Wi-Fi
No
Resolution
1920 x 1080
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