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Sharp LC-22LE240E User Manual

Sharp LC-22LE240E
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LC-22LE240
SERVICE MANUAL
LED LCD COLOUR TELEVISION
160mm
125mm
100mm
80mm
63mm
50mm
40mm
31.5mm
25mm
20mm
A-data-1
sharp.
Corporate Trademark
DVB-T / DVB-C (HDTV), PAL B/G, I / SECAM B/G, D/K, L/L SYSTEM COLOUR TELEVISION
1st Edition
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identical
to those specied should be used.
CONTENTS
TABLE OF CONTENTS ....................................................................................................................... 2
ELECTRICAL SPECIFICATIONS ....................................................................................................... 5
IMPORTANT SERVICE SAFETY PRECAUTIONS ................................................................................ 6
OPERATION MANUAL ........................................................................................................................... 9
DIMENSIONS ..................................................................................................................................... 15
INTRODUCTION .................................................................................................................................. 16
CIRCUIT DESCRIPTIONS .................................................................................................................. 19
SERVICE MENU SETTINGS ........................................................................................................... 51
SOFTWARE UPDATE ............................................................................................................................ 56
TROUBLESHOOTING ..................................................................................................................... 57
OVERAL WIRING DIAGRAM ........................................................................................................... 65
SCHEMATIC DIAGRAMS ................................................................................................................ 66
PRINTED WIRING BOARD ....................................................................................................................... 76
REPLACEMENT PARTS LISTING ............................................................................................... 77
CABINET AND MECHANICAL PARTS LISTING ...................................................................... 86
Issued: 26 March 2012
MODEL
LC-22LE240E
LC-22LE240EV
LC-22LE240RU
This document has been published to
be used for after sales service only.
The contents are subject to change without notice.
LC-22LE240K
LCD COLOUR TELEVISION OPERATION MANUAL
ENGLISH
50200000
SHARP ELECTRONICS (UK) Limited
4 Furzeground Way, Stockley Park
Uxbridge, UB11 1EZ, UK
17MB62 CHASSIS
SHARP CORPORATION

Table of Contents

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Sharp LC-22LE240E Specifications

General IconGeneral
Screen shapeFlat
Response time8 ms
Display diagonal22 \
Display brightness250 cd/m²
LED backlighting typeEdge-LED
Supported video modes1080p
Contrast ratio (dynamic)-
Display diagonal (metric)55 cm
Supported graphics resolutions1920 x 1080 (HD 1080)
3DNo
Annual energy consumption32 kWh
Product colorBlack
Panel mounting interface75 x 75 mm
Analog signal format systemNTSC, PAL, SECAM
Digital signal format systemDVB-C, DVB-T
RMS rated power5 W
Number of speakers2
HDMI version1.3
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
S-Video inputs quantity0
Video formats supportedDIVX, H.264, MPEG2, MPEG4
Remote control typeRC1910
Power consumption (standby)0.5 W
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)135 mm
Height (with stand)379 mm
Weight (with stand)5000 g
Depth (without stand)36 mm
Width (without stand)535 mm
Height (without stand)347 mm
Weight (without stand)- g

Summary

Electrical Specifications

TV Specifications

Technical details for TV broadcasting, channels, audio, and panel dimensions.

Digital Reception (DVB-C)

Details on DVB-C transmission standards, demodulation, video, and audio.

Important Service Safety Precautions

Warning

Crucial safety warnings for service technicians, including circuit modification and power disconnection.

Safety Notice

Guidance on replacement parts and their safety characteristics, emphasizing using identical components.

Precautions for Using Lead-Free Solder

2 Soldering

Guidelines for soldering with lead-free solder, including temperature and tip maintenance.

End of Life Disposal

A. Information on Disposal for Users (private households)

Instructions for private users on disposing of electrical equipment in the EU and other countries.

Operation Manual

Remote Control Buttons

Detailed listing and description of all buttons on the remote control handset.

LCD TV and Operating Buttons

Explanation of the TV's physical buttons and their functions.

Viewing the Connections - Back Connectors

Details on various input/output ports located on the back of the TV.

Viewing the Connections - Side Connectors

Description of various input/output ports located on the side of the TV.

Power Connection

Important information regarding the TV's power requirements and connection.

Using USB Inputs

Instructions and precautions for connecting and using USB storage devices with the TV.

Connecting to a DVD Player via HDMI

Steps for connecting a DVD player using an HDMI cable for better quality.

Connecting the LCD TV to a PC

Guide on connecting a PC to the LCD TV for displaying computer screen images.

Switching On/Off

Steps for turning the TV on, switching to standby, and turning it off completely.

DIMENSIONS

Dimensional Drawings

Visual representation and measurements of the TV's physical dimensions.

INTRODUCTION

0. INTRODUCTION

General overview of the 17MB62 mainboard and its capabilities.

0.1 General Block Diagram

17MB62 Block Diagram

A detailed block diagram illustrating the internal connections and components of the 17MB62 chassis.

0.2 MB62 Placement of Blocks

MB62 Placement of Blocks

Diagram showing the physical placement of major ICs and connectors on the MB62 mainboard.

CIRCUIT DESCRIPTIONS

1. TUNER(TU3)

Description of the tuner module, its bands, and tuning mechanism.

1.1. General description of Sony RE216

Detailed description and features of the Sony RE216 tuner.

Application Block Diagram of Tuner

A block diagram illustrating the tuner's application and pinning.

2. AUDIO AMPLIFIER STAGE WITH AZAD2102(U163, U164)

2.1. General Description

Overview of the AZAD2102B audio amplifier, its power output, and technology.

2.2. Features

Key features of the AZAD2102B audio amplifier, including efficiency and protection.

2.3. Absolute Ratings

2.3.1. Electrical Characteristics

Electrical parameters and test conditions for the audio amplifier under specific ratings.

2.3.2. Operating Specifications

Pinning

Diagram and list of the pins for the audio amplifier package.

3. AUDIO AMPLIFIER STAGE WITH TPA3113(U168)

3.1. General Description

Description of the TPA3113D2 audio amplifier, its power, and protection features.

3.2. Features

Key features of the TPA3113D2 amplifier, including efficiency and protection.

3.3. Absolute Ratings

3.3.1. Electrical Characteristics

Electrical characteristics and test conditions for the TPA3113D2 amplifier.

3.4. Pinning

Pinout details for the TPA3113D2 audio amplifier IC.

4. POWER STAGE

Power Socket

Diagram showing the power socket connections and voltage outputs.

POWER BLOCK DIAGRAM

DC/DC

Details of DC/DC converter circuits within the power stage.

Short CCT Protection Circuit

ADAPTOR OVER VOLTAGE PROTECTION

Circuit for protecting against over-voltage when using an adaptor.

4.1. Power Management

---MB62 Power Management with Adaptor---

Power management scheme for the MB62 chassis when using an adaptor.

---MB62 Power Management with PW25/PW26---

Power management scheme for the MB62 chassis with PW25/PW26 power supplies.

---MB62 Power Management with IPS16/IPS17/IPS60/PW05---

Power management schemes for the MB62 chassis with different power supply units.

5. MICROCONTROLLER – MSTAR(U5)

5.1. Description

Detailed description of the MSTAR MSD9WB9PT-2 main IC and its modules.

MPEG-4 Video Decoder

Hardware JPEG

Features and capabilities of the hardware JPEG decoder.

NTSC/PAL/SECAM Video Decoder

Details on the NTSC/PAL/SECAM video decoding standards supported.

Analog RGB Compliant Input Port

DVI/HDCP/HDMI Compliant Input Port

Information on DVI, HDCP, and HDMI input ports, including specifications.

CVBS Video Encoder

2D Graphics Engine

Description of the 2D graphics engine and its capabilities.

VIF Demodulator

Details on the VIF demodulator and its supported standards.

5.2. MSTAR Block Diagram

5.3. Reset Circuit

The reset circuit used for initializing the main Mstar IC.

6. CI INTERFACE

CI Interface Power Switch

Circuit for controlling power supply to the CI module.

7. USB INTERFACE

USB interface

Description of the integrated USB 2.0 interface and its main parts.

8. DDR2 SDRAM K4T1G146QF (U155)

8.1 General Description

Description of the 1Gb DDR2 SDRAM organization and transfer rates.

8.2 Features

Key features of the DDR2 SDRAM, including voltage and speed.

8.3 Pinning

Ball Locations (x16)

Diagram showing the ball locations for the DDR2 SDRAM package.

9. SCALER AND LVDS SOCKETS

9.1. LVDS sockets Block Diagram

Block diagram of the scaler and LVDS sockets interface.

9.2. Panel Supply Switch Circuit

Circuit for controlling panel supply to the TCON, managed by the microcontroller.

10. SPI FLASH MEMORY - MX25L1005 (U158)

10.1. General Description

Description of the MX25L1005 serial Flash memory and its interface.

10.2. Features

Key features of the SPI Flash memory.

10.4. Pinning

Absolute Maximum Ratings

Absolute maximum ratings for the SPI Flash memory, including voltage and temperature.

11. NAND FLASH MEMORY – NAND512XXA2C (U162)

11.1. General Description

Description of the NAND flash memory family and its technology.

11.2. Features

Key features of the NAND flash memory, including interface and page/block sizes.

11.3. Pinning

Status register

Information about the status register in the NAND flash memory.

12. LM1117(U175, U180, U181)

12.1. General Description

Description of the LM1117 series of low dropout voltage regulators.

12.2. Features

Key features of the LM1117 regulators, including voltage options and current limit.

12.3. Applications

Common applications for the LM1117 voltage regulators.

12.5. Pinning

Absolute Maximum Ratings

Absolute maximum ratings for the LM1117 regulators.

13. MP2012 (U176)

13.1. General Description

Description of the MP2012 PWM step-down converter and its capabilities.

13.3. Pinning

Pinout diagram and description for the MP2012 converter.

14. RTA8283A (U23, U173)

14.1. General Description

Description of the RT8283A DC/DC converter, its efficiency, and protection features.

14.3. Pinning

Pinning table for the RT8283A converter.

15. MP1583 (U174)

15.1. General Description

Description of the MP1583 step-down regulator and its features.

15.3. Pinning

Pinning table for the MP1583 regulator.

16. FDC642

16.1. General Description

Description of the FDC642 P-Channel MOSFET and its process.

16.3. Pinning

Pinning diagram for the FDC642 MOSFET.

17. FDC604P

17.1. General Description

Description of the FDC604P P-Channel MOSFET and its optimization.

17.3. Pinning

Pinning diagram for the FDC604P MOSFET.

18. CONNECTORS

18.1. SCART (SC1)

Pinout details for the SCART connector.

18.2. HDMI (CN707,CN708)

18.3. VGA (CN711)

Pinout details for the VGA connector.

19. SERVICE MENU SETTINGS

Video Settings

Settings for video parameters within the service menu.

Audio Settings

Settings for audio parameters within the service menu.

Options 1

General options settings within the service menu.

Options 2

Additional options settings within the service menu.

Tuning Settings

Settings related to TV tuning within the service menu.

Source Settings

Settings for selecting input sources within the service menu.

USB Operations

Information regarding USB operations within the service menu.

20. SOFTWARE UPDATE

Software Update Procedure

Step-by-step instructions for updating the TV's software.

21. TROUBLESHOOTING

21.1. No Backlight Problem

Troubleshooting steps for cases where the TV has no backlight or picture.

DIMMING CIRCUIT

Description of the dimming circuit and related checks.

21.2. CI Module Problem

CI Detect

Information related to CI detection and related circuit checks.

SHORT CCT PROTECTION

21.3. Led Blinking Problem

Troubleshooting steps for issues causing LED blinking without other operation.

21.4. IR Problem

LED SOCKET

Information about the LED socket and its role in IR functionality.

21.5. Keypad Touchpad Problems

21.6. USB Problems

Troubleshooting steps for USB not working or not being detected.

21.7. No Sound Problem

21.8. No Sound Problem at Headphone

Troubleshooting steps for no audio output at the headphone jack.

21.9. Standby On/Off Problem

21.10. No Signal Problem

Troubleshooting steps for when there is no signal in TV mode.

22. OVERALL WIRING DIAGRAM

MB62 MAIN BOARD

Wiring diagram connecting the main board to other components.

SCHEMATIC DIAGRAMS

Tuner & T2 Demodulator Diagram

Schematic diagram for the tuner and T2 demodulator.

Peripherals Diagram

SCART

Schematic diagram for the SCART connector and associated circuits.

PC INPUT

Schematic diagram for the PC input port.

SAV RCA INPUT

Schematic diagram for SAV RCA inputs.

YPbPr Slim INPUT

Schematic diagram for YPbPr Slim input.

Audio IO & HDMI Inputs Diagram

AUDIO OUTPUTS

Schematic of audio output circuits.

AUDIO INPUTS

Schematic of audio input circuits.

Audio AMP & HP AMP Diagram

AUDIO AMP for 16" to 24"

Schematic of the audio amplifier for 16" to 24" TVs.

AUDIO AMP for 26" to 32"

Schematic of the audio amplifier for 26" to 32" TVs.

GPIOS & USB & LVDS_OUT Diagram

SINGLE LVDS FFC OPTIONS

Diagram for single LVDS FFC connections.

DOUBLE LVDS FFC OPTIONS

Diagram for double LVDS FFC connections.

POWER_1 & LNBP Diagram

POWER SOCKET

Diagram of the power socket and related circuits.

DIMMING CIRCUIT

Diagram of the dimming circuit.

SHORT CCT PROTECTION

Diagram of the short circuit protection circuit.

POWER_2 Diagram

ADAPTER SOCKET

Diagram of the adapter socket.

W/ADAPTOR POWER BLOCK DIAGRAM

Power block diagram for adapter configuration.

POWER SUPPLY Diagram

SMPS Group

Diagram related to the SMPS group within the power supply.

Led Converter Diagram

STEP UP CONVERTER

Schematic of the step-up converter for LED backlighting.

24. PRINTED WIRING BOARD

PRINTED WIRING BOARD

Layout diagram of the printed wiring board for the main unit.

PARTS LISTING

INTEGRATED CIRCUITS

List of integrated circuits used in the TV.

TRANSISTORS

List of transistors used in the TV.

CAPACITORS

RESISTORS

List of resistors used in the TV.

CABINET AND MECHANICAL PART LISTING

FRONT 22942 LED (SHARP/S)(VO) (Front Cabinet)

Part number and description for the front LED assembly.

ACCESORIES PARTS LISTING

List of accessories provided with the TV.

PACKING PART LISTING

List of packing materials for the TV.

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