Sharp LC-50LE442U User manual

SERVICE MANUAL
LED COLOR TELEVISION
MODEL:
LC-50LE442U

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CONTENTS
SAFETY PRECAUTION
IMPORTANT SERVICE SAFETY PRECAUTION.............................................................................………………………2
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS .........................................................................................................................................4
[2] DIMENSIONS .................................................................................................................................................5
CHAPTER 2. REMOVING OF MAJOR PARTS
[1] REMOVING OF MAJOR PARTS ...............................................................................................................8
CHAPTER 3. ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE................................................................................................................24
[2] SERVICE MODE.....................................................................................................................................29
[3] FACTORY MODE AUTOMATION BEHAVIOR............................................................................................30
[4] SOFTWARE UPGRADE PROCEDURE .....................................................................................................30
CHAPTER 4. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE......................................................................................................................... 31
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS ........................................................................................................................47
CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM
[1] BLOCK DIAGRAM ................................................................................................................................ ….. 51
[2] POWER MANAGEMENT BLOCK DIAGRAM .................................................................................................... 52
[3] WIRING DIAGRAM .......................................................................................................................................... 53
CHAPTER 7. PRINTED WIRING BOARD
[1] MAIN UNIT PRINTED WIRING BOARD .......................................................................................................... 54
[2] POWER UNIT PRINTED WIRING BOARD ....................................................................................................... 56
[3] KEY UNIT PRINTED WIRING BOARD ............................................................................................................. 58
[4] IR UNIT PRINTED WIRING BOARD................................................................................................................. 58
CHAPTER 8. SCHEMATIC DIAGRAM
[1] MAIN SCHEMATIC DIAGRAM ............................................................................................................................... 59
[2] POWER SCHEMATIC DIAGRAM ......................................................................................................................... 69
[3] KEY SCHEMATIC DIAGRAM................................................................................................................................. 73
[4] IR SCHEMATIC DIAGRAM .................................................................................................................................... 73
CHAPTER 9. Parts Guide
[1]SPARE PARTS LIST.............................................................................................................................................. 74
[1] CABINET PARTS ................................................................................................................................................... 80
[2] SUPPLIED ACCESSORIES ................................................................................................................................... 84
[3] PACKING PARTS .......................................................................... 85

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CHAPTER 1. OPERATION MANUAL
[1]SPECIFICATIONS

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[2]DIMENSIONS
LC-50LE442U
TV screen size (Inches) VESA-compatible wall
bracket (millimeters)(W*H) Screw type

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50'' 400*400mm Metric 8*14mm
Setting the TV on the wall (LC-50LE442U)

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CHAPTER 2. Removing of Major Parts
LC-50LE442U
1. Assy/Panel Removal
Notes: Please put your machine on soft material to avoid scrape panel when you
disassemble it.
Front view
Fig.1
Back view
Fig.2

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Step1. Remove the Base Assy.
Remove the 4 screws as Fig.3 and pull out the base.
Fig.3
Step 2. Remove the REAR COVER Assy.
1. Remove the 19 screws, around the REAR COVER as Fig.4.
Fig.4

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2. Remove the 3 screws at the IO area as Fig.5.
Fig.5
3. Remove the 3 screws to release AC cable as Fig.6 .Fig.7
Fig.6 Fig.7

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Step3. Remove the Main, Power, IR board, Key Pad ASSY, and the Speakers.
Fig.8
1. Remove the 8 screws and disconnect 4 cables .Detach the Main board ASSY
as Fig.9
Fig.9

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2. Remove the 4 screws and 3 Cables. Detach the Power board as Fig.10.
Fig.10
3. Remove the 1screws. Detach the IR board as Fig.11.
Fig.11

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4. Remove the 2screws.Detach the Key Pad ASSY as Fig.12.
Fig.12
5. Detach the Speakers as Fig.13. Fig.14.
Fig.13
Fig.14

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Step4. Remove BASE SUPPORT.
Remove the 8 screws. Detach the BASE SUPPORT as Fig.15
Fig.15
Step5. Remove PANEL module.
1. Detach the PANEL HOLDER (9 pcs) as Fig .16
Fig.16

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CHAPTER 3. ADJUSTMENT PROCEDURE
[1]ADJUSTMENT PROCEDURE
1. Main Menu (The default value is marked in red)
Level 1 Level 2 Level 3 Level 4 Level 5 Level 6
Picture Settings AV Mode User/ Standard/
Movie/ Game/ PC/
Dynamic/
Dynamic(Fixed)
OPC Off/ On Disable when
AV mode is
Dynamic(Fixe
d).
Backlight 0~100 (100)
Contrast 0~100 (50)
Brightness 0~100 (50)
Color 0~100 (50)
Tint -50 ~ 50 (0)
Sharpness 0~20 (10)
Advanced Color Temp. Color Temp. User/Cool/
Standard/Warm
R Gain 0~255
G Gain 0~255
B Gain 0~255
Reset Yes/No
Active Contrast Off/ On
DI Film Mode Off/ Auto
Digital Noise Reduction Off/ Low/
Medium/ High/
Auto
Reset
(Only reset
currect AV
mode settings.)
Yes/No
Audio Settings Treble 0~100 (50) Disable when
AV mode is
Dynamic(Fixe
d).
Bass 0~100 (50)
Balance -50 ~ 50 (0)
Surround Off/ On

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Reset
(Only reset
currect AV
mode settings.)
Yes/No
Power Control No Signal Off Enable/ Disable
Power Saving Off/ On Disable when
AV mode is
Dynamic(Fixe
d).
System Options View Option View Mode
Freeze
Change Audio MTS Mono/ Stereo/
SAP
Audio
Language
English/
Spanish/ French
Change CC Analog Closed
Caption
Off/ CC1/ CC2
/CC3 /CC4/
TEXT1/ TEXT2/
TEXT3/ TEXT4
Digital Closed
Caption
Off/ Service1/
Service2/
Service3/
Service4/
Service5/
Service6
Input Terminal
Setting
Audio Setup Off/ Dolby
Digital/ PCM
PC input
(For PC only)
Auto Sync.
Fine Sync. H-Pos.
V-Pos.
Clock
Phase
Audio Select
(For PC only)
Video/
Video+Audio
Audio Select
(For HDMI only)
Auto/
HDMI(Digital)/
HDMI+Analog

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HDMI Setup
(For HDMI only)
HDMI Mode Auto/ Graphic/
Video
Speaker On/ Off
Caption setup
(For TV & AV
only)
Caption Style Default/
Custom
Caption Size Small/
Standard/
Large
Foreground Color Black/ White/
Green/ Blue/
Red/ Cyan/
Yellow/
Magenta
Foreground Opacity Solid/
Translucent/
Transparent
Background Color Black/ White/
Green/ Blue/
Red/ Cyan/
Yellow/
Magenta
Background Opacity Solid/
Translucent/
Transparent
Window Color Black/ White/
Green/ Blue/
Red/ Cyan/
Yellow/
Magenta
Window Opacity Solid/
Translucent/
Transparent
Initial Setup EZ Setup
Broadcasting
Setup
(For TV only)
CH Setup Air/Cable Air/ Cable
CH Search
CH Memory
Favorite CH A
B

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C
D
All Data Clear Yes/No
Language English/ Español/
Français
Individaul Setup
(Input Secret
No.)
(For TV & AV
only)
Secret No. New Secret No.
Confirm Secret
No.
Parental CTRL V-Chip MPAA G/ PG/
PG-13/ R/
NC-17/ X/
NONE
TV Guidelines TV-Y/ TV-Y7/
TV-G/ TV-PG/
TV-14/
TV-MA/
NONE
D, L, S, V, FV
Can.English
Ratings
E/ C/ C8+/ G/
PG/ 14+/ 18+/
NONE
Can.French
Ratings
E/ G/ 8ans+/
13ans+/
16ans+/
18ans+/
NONE
V-Chip(DTV
Only)
Status No/ Yes
Reset Yes/No
Information Identification

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2. Display adjustment
Only adjust HDMI Mode and copy to all of input source
General set-up:
Equipment Requirements: Minolta CA-210 or Equivalent Color analyzer or
equivalent instrument.
Input Signal Type:
1. Internal full white pattern.
2. Select Picture mode to Standard mode and check the x, y data.
Input Injection Point: HDMI cable
Alignment method:
Initial Set-up:
1. Select source as “INPUT 1” (HDMI 1).
2. Set AV mode as “Standard”.
3. Enter factory mode menu: press MENU + Numeric keys “3481” .
Alignment:
1. Press MENU key enter factory mode page.
2. Set VideoÆWhite Pattern to “Medium”.
3. Enter VideoÆColor Temperature adjust.
Color temperature adjusts:
1. Set color temperature to “Cool”
2. Adjust R Gain/G Gain values to meet “Cool” color coordinates.(Keep B Gain set “128”)
3. Adjust R Offset/G Offset values to meet “Cool” color coordinates.(Keep B Offset set “128”)
4. Repeat step 2, 3, 4 twice to meet “Cool” color coordinates specification below.
5. Set color temperature to “Warm”、”Standard” then Repeat 2,3,4 step adjusting.
6. Set color temperature “User” mode then set all values to “128”
Mode Chromaticity Coordinate
x y
COOL 0.272 ± 0.008 0.277 ± 0.008
STANDARD 0.285 ± 0.008 0.293 ± 0.008
WARM 0.313 ± 0.008 0.323 ± 0.008
Customer Color Panel Native Color Temperature
Check the 16 gray scale patterns should be distinguished and color bar is correct

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Note:
1. Use Minolta CA-210 for color coordinates and luminance check.
2. Before adjusting, all color analyzers (CA-210) should be coordinates with a
same reference TV set.
3. Luminance>=240 cd/m2 in the center of screen when Brightness control at
100,Contrast control at 100,Backlight control at 100.(For LC-50LE442U ,Test
color mode: User mode)
[2] SERVICE MODE
Enter factory mode menu: press MENU + Numeric keys “3481” to enter factory
mode.
You can press “RETURN” key to back to normal main menu.
[3] FACTORY MODE AUTOMATION BEHAVIOR
For factory checking channels convenient, so entered factory mode will auto install
factory pre-channels to instead of user’s channels table, after exited Factory mode,
the pre-channels will be cleared.