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Серия Ремонт №76-Телевизоры LG
Uploaded: 10.03.2012
Content: text 247 symbols
Product description
Серия Ремонт №76-Телевизоры LG
Автор: Пьянов Г. И.
Издательство: СОЛОН-Пресс
Год издания: 2004
Страниц: 153
Язык: Русский
Формат: djvu
Качество: хорошее
Размер: 11,24 Mб
В данной книге рассмотрена работа телевизионных, приемников LG, выполненных на базе шасси МС-64А, МС-84А, МС-41А/В, МС-994А. Описаны принципы работы видеопроцессоров TDA8362A, TDA8842, ТВ1238, ТА8690, микроконтроллеров. Приведены таблицы назначений выводов микросхем, структурные схемы ряда узлов, поясняющие принципы обработки сигналов. Описаны принципы работы импульсных источников питания. На примере СХР86324 рассказано о применении микроконтроллеров в телевизионных приемниках.
Additional information
Contents:
References
Foreword
Chapter 1. Chassis MC-64A
Specifications TV
Technical parameters
Block diagram of the chassis MC-64A
Schematic diagram
RF Signal Processing
IF Signal Processing Image
Signal Processing IF sound
Work AGC APCHG
Processing of chrominance signals
Synchronization signals
Microcontroller
Power supply
Vertical sweep
Low-frequency amplifier
Karaoke system
System Teletext reception
The output stage horizontal
Electronic switches
The output video amplifiers
Protection in emergency situations
Adjustments
The main elements of the scheme chassis MC-64A
Chapter 2. Chassis MC-84A
Features circuits with different CRT
Technical parameters
Block diagram of the chassis MC-84A
Interaction of the components
The main functional units
Schematic diagram
Microcontroller
Tuner
The video processor TDA8842
The output stage is a vertical sweep
The output stage horizontal
Protection system in emergency situations
The output video amplifiers
Power supply
Base ULF. The system of UBB
Stereo engines
Dual ULF
Teletext signal processing unit
Adjustment in the service mode
Adjusting AGC (LINE SVCO - AGC)
Adjusting the geometry of the raster (SVC1 - VL, VS, VA, HS, SC)
White balance
Exit service mode
The main elements of the scheme chassis MC-84A
Chapter 3. Chassis MC-41 A / B
Specifications TV
Technical parameters
Block diagram of the chassis MC-41 A / B
Interaction of the components
The main functional units
Schematic diagram
RF Signal Processing
Signal Processing IF sound
Work AGC APCHG
Processing of chrominance signals
Synchronization signals
Microcontroller
Power supply
Vertical sweep
Low-frequency amplifier
Video amplifier output stage
The output stage horizontal
Electronic switches
Protection in emergency situations
Adjustments
The main elements of the scheme chassis MC-41 A / B
Features circuits with different CRT
Chapter 4 Chassis MC-994A
....
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