Sharp LC-32LE440U Schematic

SERVICE MANUAL

LCD COLOR TELEVISION

MODEL:

LC-32LE440U

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...............................................................................................................6

CHAPTER 3. ADJUSTMENT PROCEDURE

[1] ADJUSTMENT PROCEDURE................................................................................................................14

[2] SERVICE MODE.....................................................................................................................................19

[3] SOFTWARE UPGRADE PROCEDURE .....................................................................................................20

CHAPTER 4. TROUBLESHOOTING TABLE

[1] TROUBLESHOOTING TABLE......................................................................................................................... 21

CHAPTER 5. MAJOR IC INFORMATIONS

[1] MAJOR IC INFORMATIONS ........................................................................................................................37

CHAPTER 6. BLOCK DIAGRAM/WIRING DIAGRAM

[1] BLOCK DIAGRAM ................................................................................................................................ ….. 41

[2] POWER MANAGEMENT BLOCK DIAGRAM.................................................................................................... 42

[3] WIRING DIAGRAM .......................................................................................................................................... 42

CHAPTER 7. PRINTED WIRING BOARD

[1] MAIN UNIT PRINTED WIRING BOARD ..........................................................................................................43

[2] POWER UNIT PRINTED WIRING BOARD ....................................................................................................... 45

[3] KEY UNIT PRINTED WIRING BOARD .............................................................................................................47

[4] IR UNIT PRINTED WIRING BOARD................................................................................................................. 47

CHAPTER 8. SCHEMATIC DIAGRAM

[1] MAIN SCHEMATIC DIAGRAM ............................................................................................................................... 48

[2] POWER SCHEMATIC DIAGRAM ......................................................................................................................... 58

[3] KEY SCHEMATIC DIAGRAM................................................................................................................................. 64

[4] IR SCHEMATIC DIAGRAM .................................................................................................................................... 64

CHAPTER 9. Parts Guide

[1]SPARE PARTS LIST.............................................................................................................................................. 65

[1] CABINET PARTS ................................................................................................................................................... 67

[2] SUPPLIED ACCESSORIES ................................................................................................................................... 69

[3] PACKING PARTS................................................................................................................................................... 70

CHAPTER 1. OPERATION MANUAL

[1] SPECIFICATIONS

Item Model: LC-32LE440U

LCD screen size 32 inches diagonal

Resolution 1366 x 768

TV-standard American TV Standard ATSC/NTSC System

VHF/UHF VHF 2-13ch, UHF 14-69ch

CATV 1-125ch (non-scrambled channel only)

TV function

Receiving

channel

Digital Terrestrial

2-69ch

Broadcast (8VSB)

Digital cable*1

1-135ch (non-scrambled channel only)

(64/256 QAM)

Audio multiplex BTSC System

Audio out 5W*2

75 Ω Unbalance ,F Type x 1 for Analog (VHF/UHF/CATV) and

ANT./CABLE

Digital(AIR/CABLE)

INPUT2 HDMI in with HDCP

Rear

INPUT3 HDMI in with HDCP

Audio PC/HDMI Audio in (Ø 3.5mm jack)

Terminal

PC IN Analog RGB (PC) in (15-pin mini D-sub female connector)

Headphone out Ø 3.5mm jack (Audio output)

SPDIF HDMI in with HDCP

Side

RS-232C D-sub 9 pin for service & Hotel mode using

INPUT1 HDMI in with HDCP

USB Photo/Music/Video mode, Software update

OSD language English/French/Spanish

Power Requirement AC 120V ~60Hz

Power Consumption ≤75W (0.7 W Standby with AC 120 V)

TV + stand 18.7 lbs. /8.5 kg

Weight

TV only 16.7 lbs./7.6kg

(W/H/D)

TV + stand 30

TV only 30

25/64

× 21

× 19

8/128

18/32

× 7

× 2

96 /128

10 /16

inch Dimension

inch

Operating temperature +32°F to + 104°F (0°C to + 40°C)

Response time 6ms

[2]DIMENSIONS

CHAPTER 2. Removing of Major Parts

1. Assy/Panel Removal

Notes: Please put your machine on soft material to avoid scrape panel when you

disassemble it.

Front view

Back view

Fig.1

Step1. Remove the Base Assy.

1. Remove the 4 screws as Fig.3 and pull out the base .

Fig.2

Fig.3

Step 2. Remove the REAR COVER Assy.

1. Remove the 13 screws, around the REAR COVER as Fig.4.

Fig.4

2. Remove the 4 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

Step3. Remove the Main, Power, IR board, Key Pad ASSY, and the Speakers.

Fig.8

1. Remove the 5 screws and disconnect 4 cables .Detach the Main board ASSY

as Fig.9

Fig.9

2. Remove the 4 screws and 2 Cables. Detach the Power board as Fig.10.

Fig.10

3. Remove the 1screws. Detach the IR board as Fig.11.

Fig.11

4. Remove the 1screws.Detach the Key Pad ASSY as Fig.12.

Fig.12

5. Detach the Speakers as Fig.13. Fig.14.

Fig.13

Fig.14

Step4. Remove BASE SUPPORT.

Remove the 4 screws and 2 cable clamps. Detach the BASE SUPPORT as Fig.15

Fig.15

Step5. Remove PANEL module.

1. Remove the 4 screws. Detach the PANEL HOLDER as Fig.16, Fig.17, Fig.18

Fig.16

Fig.17 Fig.18

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

OPC

Backlight

Contrast

Brightness

Color

Tint

Sharpness

Advanced

User/ Standard/

Movie/ Game/ PC/

Dynamic/

Dynamic(Fixed)

Off/ On 0~100 (100) 0~100 (50) 0~100 (50) 0~100 (50)

-50 ~ 50 (0) 0~20 (10)

Color Temp.

Color Temp. User/Cool/

Standard/Warm

R Gain 0~255

G Gain 0~255

B Gain 0~255

Disable when

AV mode is

Dynamic(Fixe

d).

Audio Settings

Reset

(Only reset

currect AV

mode settings.)

Treble

Bass

Balance

Surround

Reset Yes/No

Active Contrast

DI Film Mode

Digital Noise Reduction Off/ Low/

Yes/No

0~100 (50) 0~100 (50)

-50 ~ 50 (0) Off/ On

Off/ On Off/ Auto

Middle/ High/

Auto

Disable when

AV mode is

Dynamic(Fixe

d).

Reset

(Only reset

currect AV

mode settings.)

Yes/No

System Options

No Signal Off

Power Saving

View Option

Enable/ Disable Off/ On

Power Control

Disable when

AV mode is

Dynamic(Fixe

d).

View Mode

Freeze

Change CC

MTS

Audio

Language

Analog Closed

Caption

Mono/ Stereo/ SAP English/ Spanish/ French Off/ CC1/ CC2

CC3 /CC4/ TEXT1/

Change Audio

TEXT2/ TEXT3/

TEXT4

Digital Closed

Caption

Off/ Service1/

Service2/ Service3/

Input Terminal

Setting

Audio Setup Off/ Dolby

Digital/ PCM

PC input

(For PC only)

Audio Select

(For PC only)

Audio Select

(For HDMI only)

Auto Sync.

Fine Sync.

Video/

Video+Audio Auto/

HDMI(Digital)/

HDMI+Analog

HDMI Setup

HDMI Mode

(For HDMI only)

Service4/ Service5/

Service6

H-Pos.

V-Pos.

Clock

Phase

Auto/ Graphic/ Video

Speaker

Caption setup Caption Style

On/ Off Default/

(For TV & AV

Custom

only)

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/

Initial Setup

Translucent/

Transparent

Window Color

Black/ White/

Green/ Blue/

Red/ Cyan/

Yellow/

Magenta

Window Opacity Solid/

Translucent/

Transparent

EZ Setup

Broadcasting

Setup

(For TV only)

CH Setup

Favorite CH

Air/Cable

Air/ Cable

CH Search

CH Memory

All Data Clear Yes/No

Language

English/ Español/ Français

Individaul Setup

(Input Secret

No.)

(For TV & AV

only)

Parental CTRL

New Secret No. Secret No.

Confirm Secret

No.

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

V-Chip(DTV

Only)

Status

Reset Yes/No

Information Identification

No/ Yes

E/ G/ 8ans+/

13ans+/

16ans+/

18ans+/

NONE

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 adjust:

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

x y

COOL 0.272 ± 0.015 0.277 ± 0.015

STANDARD 0.285 ± 0.015 0.293 ± 0.015

WARM 0.313 ± 0.015 0.323 ± 0.015

Customer Color Panel Native Color Temperature

Chromaticity Coordinate

Check the 16 grayscale pattern should be distinguished and color bar is correct

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 > =320 cd/m2 in the center of the screen when Brightness control at

100, Contrast control at 100, Backlight control at 100. (Test Color mode:

Standard)

[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] SOFTWARE UPGRADE PROCEDURE

1. Connect to TV USB port to upgrade the software firmware

Please follow the following steps to upgrade the firmware.

I. Turn on TV.

II. Press MENU, select InformationÆIdentification to check "Version"

III. Copy the correct software firmware (*.pkg) to USB disk.

Ex: Version: V2.0, copy NAS2_89.pkg to USB disk.

IV. Insert the USB disk to TV USB port.

V. TV AC power off -> AC power on

VI. TV will upgrade by itself after detect the USB disk condition and the content of the

pkg file.

Note: TV's LED will flash during upgrade process

VII. After finish upgrade process, TV will reboot by itself.

VIII. Remove USB disk from TV.

IX. Press MENU, select InformationÆIdentification.

X. Check the software version is correct or not.

CHAPTER 4.TROUBLESHOOTING TABLE

[1]TROUBLE SHOOTING TABLE

The sound is not emitted from the speaker though the picture has come out.

No sound output in all models?

TEREMINAL

Is the audio signal output of pin (96) (AOSDATA0), pin (95) (AOBCK), pin (94)

Check IC U2102 and its peripheral circuits. (AOLRCK) and pin (93) (AOMCLK) of IC U2102 normal?

YES

Is audio signal input to pin (6) (AOSDATA0), pin (7) (AOBCLK), pin (8) (AOLRCK) and pin (5) (AOMCLK) of IC U6101 (AMP)?

Check the line between IC U2102 and IC

U6101.

YES

Is MUTE circuit [YDA_MUTE] normal ? Check the PD#. (R6130, Q6101, R6134, etc.)

YES

Is the audio signal output of pin (1, 2) (L-ch) and pin (3, 4) (R-ch) of CN6101 (AOUDIO-CONNECTOR) normal?

YES

Check Speaker Box (right and left) and wire harness.

Check IC U6101 and its peripheral circuits.

No sound (during the reception of TV broadcasting)

Does not the sound go out though the picture has come out when UHF/VHF is received?

MAIN UNIT:

Is the DIF signal output from pin (10) and pin (11) of

TUNER(TU9101)?

Check the tuner and its peripheral circuits. Replace as

required.

Is the DIF signal sent to pin (58) and pin (59) of IC

YES

Check IC U2102 its peripheral circuits.

U2102?

Refer to “No sound output in all modes”.

YES

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