Daewoo DDT-21H9ZZF Manuals

Manuals and User Guides for Daewoo DDT-21H9ZZF. We have 1 Daewoo DDT-21H9ZZF manual available for free PDF download: Service Manual

Daewoo DDT-21H9ZZF Service Manual

Daewoo DDT-21H9ZZF Service Manual (83 pages)

Daewoo TV/DVD Combination Service manual

Brand: Daewoo | Category: TV DVD Combo | Size: 7.44 MB

Table of Contents

Table of Contents
2
1 Main Features

5
- Specifications
  5
- Channel Table
  7
- ATSS Sorting Method
  9
2 Safety Instruction

10
3 Alignment Instructions

11
4 IC Description

16
- VCT383XA TV Signal Processor - Teletext Decoder with Embedded 8 Bit - Controller
  16
  - Block Diagram of the VCT
    16
  - TV-Signal Processor
    16
  - Controller
    17
  - Teletext Features
    17
  - Display OSD Features
    18
  - Audio Features
    18
  - General Features
    18
  - Data Capture
    18
  - Data Capture Features
    18
  - TV Processor Version and -Controller Capacity
    19
  - IC Marking and Version
    19
  - Pinning
    19
- Msp341X Multistandard Sound Processor
  22
- Analogue Section
  23
- NICAM Plus FM/AM-Mono
  23
- German 2-Carrier System (DUAL FM System)
  23
- TDA9886 IIC-Bus Controlled Single/Multi Standard Algnment-Free IF-PLL
  26
  - Discription
    26
  - Features
    26
  - Pinning
    26
- Tda894Xj Stereo Audio Amplifer
  28
  - Features
    28
- Tda835Xj Vertical Amplifier
  30
  - Tda8358J
    30
- Tea5101B
  31
- 24C16 - 16 Kb EEPROM
  33
- Str - F6654
  33
  - General Description
    33
  - Features
    33
  - Block Diagram
    34
  - Pins Description
    34
  - Control Part Electrical Characteristics
    35
  - MOSFET Electrical Chatacteristics
    35
5 Circuit Description

36
- Block Diagram
  36
- IF Section
  37
  - Picture if Amplifier
    37
  - Tuner and VIF-AGC
    37
  - VIF-AGC Detector
    37
  - Frequency Phase-Locked Loop(FPLL) Detector
    37
  - VCO and Divider
    37
  - Digital Acquisition Help and AFC
    38
  - Video Demodulator and Amplifier
    38
  - Sound Carrier Trap
    38
  - SIF Amplifier
    38
  - AGC Detector
    38
  - Single Reference QSS Mixer
    39
  - AM Demodulator
    39
  - FM Demodulator and Acquisition Help
    39
  - Audio Amplifier and Mute Time Constant
    39
  - I 2 C-Bus Transceiver and MAD (Module Address)
    40
  - Internal Voltage Stabilizer
    40
- Video - VCT Description
  40
  - Introduction
    40
  - Video Front-End
    40
  - Input Selector
    40
  - Clamping
    40
  - Automatic Gain Control
    40
  - Digitally Controlled Clock Oscillator
    40
  - Analogue Video Output
    40
  - Adaptive Comb Filter (VCT3834A Only)
    41
  - Color Decoder
    41
  - Horizontal Scaler (VCT3834A Only)
    41
  - Video Sync Processing
    41
  - Display Processing
    42
  - Chroma Transient Improvement
    42
    
    Video Back-End
    42
    
    CRT Measurement and Control
    42
    
    Average Beam Current Limiter
    42
    
    Analogue RGB Insertion
    42
    
    Fast-Blank Monitor
    42
    
    Vertical and East/West Deflection
    43
    
    EHT Compensation
    43
    
    Reset Function
    43
    
    Standby and Power-On
    43
  - Microcontroller
    43
    
    Introduction
    43
    
    Cpu
    43
    
    Controller I/O Pin Configuration and Function
    43
    
    Tuning
    44
    
    Over Current Protection
    44
  - Teletext Display
    44
  - Sound Processing
    45
    
    Analogue Sound if - Input Section
    45
    
    Quadrature Mixers
    45
    
    Phase and am Discrimination
    45
    
    NICAM Decoder
    45
    
    DSP Section
    45
    
    Sound Mode Switching
    45
  - Sound Amplification
    46
    
    Power Amplifier
    46
    
    Mode Selection
    46
  - Vertical Deflection
    46
    
    Flyback Voltage
    46
    
    Protection
    46
    
    Guard Circuit
    47
    
    Damping Resistor
    47
    
    EAST-WEST Amplifier (TDA8358J)
    47
  - Power Supply (STR F6654)
    47
    
    STR-F6654 General Desctrption
    47
    
    Power Supply Primary Part Operations
    47
  - TV Start-Up, TV Normal Run and Stand by Mode Operations
    50
    
    TV Start-Up Operations
    50
    
    TV Normal Run and Stand-By Mode Operations
    51
  - DVD Loder
    54
    
    Mechanism
    54
    
    Electirical Troubleshooting Guide
    58
    
    Circuit
    60
6 Service Parts List

65
7 Different Parts List by CRT

74
8 Exploded View

75
9 Printed Circuit Board

77
10 Schematic Diagram

81

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