Hitachi 26LD6600 - User Manual

CAUTION:
Before servicing this chassis, it is important that the service technician read the “Safety
Precautions” and “Product Safety Notices” in this service manual.
ATTENTION:
Avant d’effectuer l’entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise“ und „Hinweise
zur Produktsicherheit“ in diesem Wartungshandbuch zu lesen.
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d’entretien peuvent faire l’objet
de modifications en vue de perfectionner
le produit.
Die in diesem Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
Colour Television
August 2005
No. 0209
26LD6600
32LD6600A
26LD6600A
32LD6600
32LD6600B
37LD6600
37LD6600A

Summary

Introduction and System Overview

Introduction

Details system capabilities, inputs, outputs, and audio output.

Tuner System

Covers tuner features, compatibility, and pin configuration.

IF Part (TDA9886)

Alignment-free vision and sound IF signal PLL.

Core IC Components

Sound Processor (MSP3411 G)

Handles analog and NICAM digital TV sound standards.

Video Switch (TEA6415 C)

Switches 8 video input sources to 6 outputs with gain control.

Audio Amplifier (TPA3002 D2)

9W/Ch Class-D amplifier for stereo speakers.

Microcontroller (SDA55 XX)

Single-chip teletext decoder with 8051-compatible MCU.

EEPROM (24 LC02)

2 Kbit Electrically Erasable PROM with 2-wire serial interface.

Detailed IC Descriptions

TEA6415 C Video Switch

Switches 8 video inputs to 6 outputs, supports cascaded operation.

MAD4868 A Audio Delay IC

Audio delay line for synchronizing audio/video, supports multiple channels.

TCET1102 G Optocoupler

Optocoupler with phototransistor and infrared LED for isolation.

NCP1014 Power Supply Controller

Integrates controller and 700V MOSFET for power supplies.

Service Menu and System Diagrams

Service Menu Settings

Accesses Picture Adjust, Sound Settings, Options, TV Norm, Teletext, Source.

Block Diagram

High-level view of system components and their interconnections.

Circuit Diagrams

Detailed schematics for various sections like Tuner, Video, MCU, Power Supply.

Hitachi 26LD6600 Specifications