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Hitachi L32A02A - User Manual

Hitachi L32A02A
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SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LCD Television
May 2008 Digital Media Systems Group, Hitachi Asia Ltd.
Caution
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury harmful radiation
and materials, various measures are provided in this Hitachi LCD TV.
Be sure to read the cautionary items described in the manual to maintain safety before servicing.
Service warning
1. Do not attempt to modify this product in any way and never perform customized installations without manu-
facturer's approval. Unauthorized modifications will not only void the warranty, but may lead to your being
liable for any resulting property damage or user injury.
Service work should be performed only after you are thoroughly familiar with all of the following safety che-
cks and servicing guidelines. To do otherwise, increase the risk of potential hazards and injury to the user.
While servicing, use an isolation transformer for protection from A.C. line shock.
2.
3.
Contents
* SAFETY NOTICE................................................... 2
*
PRODUCT SPECIFICATIONS................................ 3
*
FUNCTION OVERVIEW....................................... 4-7
*
PCB DIAGRAMS...........................................................8-9
*
BLOCK DIAGRAM................................................10
* SCHEMATIC DIAGRAMS.....................................11-24
*
IC BLOCK DIAGRAMS.....................................25-30
*
TROUBLESHOOTING.........................................31-33.
*
REPLACEMENT PART LIST.............................................34
*
PART LIST (FOR REFERENCE ONLY)..................35-44
No. 0025E
L32S02A
L32A02A
L32S02A, L32A02A,
L32E200, L32R200,
L32E100S,
L32E101B, L32R100

Questions and Answers

Summary

Safety Notice

Cautionary Flags

Explains warning and caution symbols for potential hazards.

Cautionary Icons

Explains icons for "CAUTION" and "MUST" for safety.

Servicing Instructions

Emphasizes following manual instructions to prevent injury.

Electric Shock Prevention

Advises caution with high-voltage parts and disconnecting power.

Component Usage Guidelines

Stresses using specified components for safety and reliability.

Component & Wire Specification

Highlights using identical components/wires for safety.

Post-Service Safety Check

Ensures all parts are restored and checked for safety after service.

Product Specifications

Function Overview

Front Panel Controls

Describes the controls and indicators on the front of the TV.

Side Panel Connections

Details the ports and buttons on the side of the TV.

Rear Panel Connections

Identifies all inputs and outputs on the rear of the TV.

Remote Control Functions

Input Source Selection

Describes selecting different input sources like TV, AV, HDMI.

Remote Control Functions (Continued)

Direct Input Selection

Allows direct selection of input sources.

External Device Connections

Schematic Diagrams

SVP-CX32 CPU Interface

Details the CPU interface and digital output sections of the SVP-CX32.

Analog I;O and LVDS

Covers analog input/output and LVDS connections.

SVP-CX32 Digital Output

Focuses on the digital output aspects of the SVP-CX32 chip.

SVP-CX32 SDRAM Interface

Details the interface to the SDRAM memory.

SVP-CX32 Power and Ground

Shows the power supply and ground connections for SVP-CX32.

Microcontroller Interface (T5 BS4-9999)

Details the interface for the T5BS4-9999 microcontroller.

Audio Amplifier IC (STV831 xF)

Schematic for the STV831xF audio amplifier.

Analog Multiplexer IC (HEF4052 BT)

Schematic for the HEF4052BT analog multiplexer.

Audio Processor IC (TDA9886)

Schematic for the TDA9886 audio processing IC.

3.3 V Power Regulator (AP1084-33)

Schematic for the AP1084-33 3.3V voltage regulator.

1.8 V Power Regulator (AP1117 E18)

Schematic for the AP1117E18 1.8V voltage regulator.

Sil9011 1.8 V Power Circuit

Power circuitry for the Sil9011 component.

Sil9011 3.3 V Power Circuit

Power circuitry for the Sil9011 component.

Schematic Diagrams (Continued)

SVP-CX32 I;O Interface

Details various input/output interfaces for the SVP-CX32 chip.

Power Supply Unit Schematics

Power Supply Unit Block Diagram

Overall block diagram of the power supply section.

IC Block Diagrams

CPU Block Diagram (T5 BS4-9999)

Block diagram of the TLCS-900/L1 CPU.

Audio Amplifier IC (MP7722 DF)

Package reference and ratings for the MP7722DF audio amplifier.

Troubleshooting

Troubleshooting: No Power LED Light

Flowchart for diagnosing no power LED indication.

Troubleshooting: Red Power LED Light

Flowchart for diagnosing only red power LED indication.

Troubleshooting: Picture No Sound

Flowchart for diagnosing no sound with a picture.

Troubleshooting: Sound No Picture

Flowchart for diagnosing no picture with sound.

Replacement Part List

Summary

Safety Notice

Cautionary Flags

Explains warning and caution symbols for potential hazards.

Cautionary Icons

Explains icons for "CAUTION" and "MUST" for safety.

Servicing Instructions

Emphasizes following manual instructions to prevent injury.

Electric Shock Prevention

Advises caution with high-voltage parts and disconnecting power.

Component Usage Guidelines

Stresses using specified components for safety and reliability.

Component & Wire Specification

Highlights using identical components/wires for safety.

Post-Service Safety Check

Ensures all parts are restored and checked for safety after service.

Product Specifications

Function Overview

Front Panel Controls

Describes the controls and indicators on the front of the TV.

Side Panel Connections

Details the ports and buttons on the side of the TV.

Rear Panel Connections

Identifies all inputs and outputs on the rear of the TV.

Remote Control Functions

Input Source Selection

Describes selecting different input sources like TV, AV, HDMI.

Remote Control Functions (Continued)

Direct Input Selection

Allows direct selection of input sources.

External Device Connections

Schematic Diagrams

SVP-CX32 CPU Interface

Details the CPU interface and digital output sections of the SVP-CX32.

Analog I;O and LVDS

Covers analog input/output and LVDS connections.

SVP-CX32 Digital Output

Focuses on the digital output aspects of the SVP-CX32 chip.

SVP-CX32 SDRAM Interface

Details the interface to the SDRAM memory.

SVP-CX32 Power and Ground

Shows the power supply and ground connections for SVP-CX32.

Microcontroller Interface (T5 BS4-9999)

Details the interface for the T5BS4-9999 microcontroller.

Audio Amplifier IC (STV831 xF)

Schematic for the STV831xF audio amplifier.

Analog Multiplexer IC (HEF4052 BT)

Schematic for the HEF4052BT analog multiplexer.

Audio Processor IC (TDA9886)

Schematic for the TDA9886 audio processing IC.

3.3 V Power Regulator (AP1084-33)

Schematic for the AP1084-33 3.3V voltage regulator.

1.8 V Power Regulator (AP1117 E18)

Schematic for the AP1117E18 1.8V voltage regulator.

Sil9011 1.8 V Power Circuit

Power circuitry for the Sil9011 component.

Sil9011 3.3 V Power Circuit

Power circuitry for the Sil9011 component.

Schematic Diagrams (Continued)

SVP-CX32 I;O Interface

Details various input/output interfaces for the SVP-CX32 chip.

Power Supply Unit Schematics

Power Supply Unit Block Diagram

Overall block diagram of the power supply section.

IC Block Diagrams

CPU Block Diagram (T5 BS4-9999)

Block diagram of the TLCS-900/L1 CPU.

Audio Amplifier IC (MP7722 DF)

Package reference and ratings for the MP7722DF audio amplifier.

Troubleshooting

Troubleshooting: No Power LED Light

Flowchart for diagnosing no power LED indication.

Troubleshooting: Red Power LED Light

Flowchart for diagnosing only red power LED indication.

Troubleshooting: Picture No Sound

Flowchart for diagnosing no sound with a picture.

Troubleshooting: Sound No Picture

Flowchart for diagnosing no picture with sound.

Replacement Part List

Hitachi L32A02A Specifications

General IconGeneral
BrandHitachi
ModelL32A02A
CategoryLCD TV
LanguageEnglish

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