Daewoo DTH-29U3 Manuals

Manuals and User Guides for Daewoo DTH-29U3. We have 1 Daewoo DTH-29U3 manual available for free PDF download: Service Manual

Daewoo DTH-29U3 Service Manual

Daewoo DTH-29U3 Service Manual (82 pages)

Color television Daewoo DTH-29U3

Brand: Daewoo | Category: TV | Size: 2.43 MB

Table of Contents

Table of Contents
2
Document History

6
- Specifications
  6
  - General
    6
  - EURO-SCART 1 (21 Pin)
    6
  - EURO-SCART 2 (21 Pin)
    7
- Channel/Frequency Table
  8
- Atss Sorting Method
  11
  - General Case
    11
  - Special Case
    11
1 Main Features

6
2 Safety Instruction

13
3 Alignment Instructions

14
- Microcontroller Configuration : Service Mode
  14
- Service Mode Navigation
  14
- Microcontroller Configuration : Option Bits
  14
- Tv Set Alignment
  15
  - Local Oscillator Alignment
    15
  - G2 Alignment
    15
  - Option 1
    15
  - White Balance
    16
  - Focus
    16
  - Vertical Geometry
    16
  - Horizontal Picture Centring
    16
  - East / West Correction
    16
  - Agc
    17
4 IC Description

18
- Teletext Decoder with Embedded 8-Bit Controller
  18
  - Block Diagram of the Sda55Xx
    18
  - Description
    18
  - IC Marking and Version
    19
  - Pinning
    19
- Vsp9412A - Scan Rate Converter Including Multistandard Colour Decoder
  20
  - Block Diagram of the Vsp9412A
    21
  - Description
    21
  - Pinning
    23
- Ddp 3315C - Display and Deflection Processor
  24
  - Block Diagram of the Ddp 3315C
    25
  - Description
    25
  - Pinning
    27
- Msp341X Multistandard Sound Processor
  29
  - Basic Features of the Msp 341X
    29
    
    Demodulator & NICAM Decoder Section
    29
    
    Analogue Section
    30
    
    DSP-Section (Audio Baseband Processing)
    30
    
    German 2-Carrier System (DUAL FM System)
    30
    
    NICAM & FM/AM-Mono
    30
- Tda4470 - Multistandard Video-If and Quasi Parallel Sound Processor
  33
  - Description
    33
  - Features
    33
  - Pinning
    33
  - Block Diagram
    34
- Tda894Xj Stereo Audio Amplifier
  35
  - Features
    35
- Tda835Xj Vertical Amplifier
  36
  - Tda8357J
    36
  - Tda8358J
    38
- Tda6107Q
  40
- 24C16 - 16 Kb Eeprom
  41
- Str - F6654
  42
  - General Description
    42
  - Features
    42
  - Block Diagram
    42
  - Pin Description
    43
  - Control Part - Electrical Characteristics
    43
  - Mosfet Electrical Characteristics
    44
5 Cp830 Chassis Description

45
- Block Diagram
  45
- If Section
  46
  - Block Diagram
    46
  - Vision if Amplifier
    47
  - Tuner-And Vif-Agc
    47
  - Fpll, Vco and Afc
    47
  - Video Demodulation and Amplifier
    48
  - Sound if Amplifier and Sif-Agc
    48
  - Quasi-Parallel-Sound (Qps) Mixer
    48
  - Standard Switch
    48
  - L Switch
    48
  - Internal Voltage Stabiliser
    48
- Video / Rgb
  48
  - Front End
    48
    
    CVBS Front-End
    48
    
    Chroma Decoder
    49
    
    Horizontal Prescaler
    49
    
    Input Selector
    49
    
    Luminance Processing
    49
    
    RGB Front-End
    49
    
    Signal Levels and Gain Control
    49
    
    Signal Processing
    49
    
    Synchronization
    49
    
    Digital 656 Output
    50
    
    Noise Measurement
    50
    
    Noise Reduction
    50
    
    Operation Modes
    50
  - Back End
    50
    
    Black Level Expander/Compressor (BLEC)
    50
    
    Digital Input Interface
    50
    
    Horizontal Scaler
    50
    
    Luma Contrast and Brightness
    50
    
    Chroma Transient Improvement
    51
    
    Dynamic Peaking
    51
    
    Luma Sharpness Enhancer (LSE)
    51
    
    Luma Transient Improvement (LTI)
    51
    
    Mixing of Dynamic Peaking and LTI
    51
    
    Analog Back End
    52
    
    Analog RGB Insertion
    52
    
    CRT Measurement and Control
    52
    
    EHT Compensation
    53
    
    Synchronization and Deflection
    53
- Microcontroller Features
  53
  - Acquisition Features
    54
  - Ports
    54
  - Controller I/O Pin Configuration and Function Table
    54
  - Tuning
    55
  - Automatic Picture Format Switching
    55
    
    WSS Data
    55
    
    16:9 Crt
    56
    
    Picture Format Description
    56
    
    SCART Pin 8 Data (Slow Switching)
    56
    
    4:3 Crt
    57
  - External Source Control Logic
    58
  - Over Current Protection
    59
- Teletext Display
  59
- Sound Processing
  60
  - Analogue Sound if - Input Section
    60
  - Quadrature Mixers
    60
  - Phase and am Discrimination
    60
  - Nicam Decoder
    61
  - Dsp Section
    61
  - Sound Mode Switching
    61
- Sound Amplification
  61
  - Power Amplifier
    61
  - Mode Selection
    61
- Vertical Deflection
  62
  - Flyback Voltage
    62
  - Protection
    62
  - Guard Circuit
    62
  - Damping Resistor
    62
  - East-West Amplifier (Tda8358J Only)
    62
- Power Supply (Str F6654)
  62
  - Str-F6654 General Description
    62
  - Power Supply Primary Part Operations
    62
    
    Start -Up Circuit: VIN
    63
    
    STR-F6654 Oscillating Operation
    64
    
    STR-F6654 Protection Circuits
    65
- Tv Start-Up, Tv Normal Run and Stand by Mode Operations
  66
  - Tv Start-Up Operations
    66
    
    Schematic Diagram for Start-Up Operations
    66
    
    TV Start-Up and Microcontroller Initialisation
    66
  - Tv Normal Run and Stand-By Mode Operations
    68
    
    TV on Normal Run Mode
    68
    
    TV Set on Stand-By Mode
    71
6 Service Parts List

73
- Dth-29U7Zl
  73
7 Exploded View

81
- Dth-29U7
  81
9 Schematic Diagram

82

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