User Manuals: Daewoo DTF-2950GB-100D CRT TV Chassis

Manuals and User Guides for Daewoo DTF-2950GB-100D CRT TV Chassis. We have 1 Daewoo DTF-2950GB-100D CRT TV Chassis manual available for free PDF download: Service Manual

Daewoo DTF-2950GB-100D Service Manual

Daewoo DTF-2950GB-100D Service Manual (92 pages)

Brand: Daewoo | Category: TV | Size: 18 MB

Table of Contents

Service Manual
1
Table of Contents
2
Document History
6
1 Main Features

7
- Specifications
  7
  - General
    7
  - EURO-SCART 1 (21 Pin)
    7
  - EURO-SCART 2 (21 Pin)
    8
- Channel/Frequency Table
  9
- Atss Sorting Method
  12
  - General Case
    12
  - Special Case
    12
2 Safety Instruction

14
3 Alignment Instructions

15
- Microcontroller Configuration : Service Mode
  15
- Service Mode Navigation
  15
- Microcontroller Configuration : Option Bits
  15
- Option1
  15
- Option2
  15
- Option3
  15
- Tv Set Alignment
  17
- Local Oscillator Alignment
  17
- G2 Alignment
  17
- White Balance
  17
- Focus
  17
- Vertical Geometry
  17
- Horizontal Picture Centring
  17
- East / West Correction
  17
- Agc
  18
4 IC Description

19
- Teletext Decoder with Embedded 8-Bit Controller
  19
  - Block Diagram of the Sda55Xx
    19
  - Description
    19
  - IC Marking and Version
    20
  - Pinning
    20
- Vsp94X5B (Version C4)- Optimus Color Decoder and Scan-Rate Converter
  22
  - BLOCK DIAGRAM of the Vsp94X5B
    22
  - Feature Overview
    23
  - Pinning
    24
- Ddp 3315C - Display and Deflection Processor
  26
  - Block Diagram of the Ddp 3315C
    26
  - Description
    26
  - Pinning
    28
- Msp341X Multistandard Sound Processor
  30
- Tda4470 - Multistandard Video-If and Quasi Parallel Sound Processor
  34
  - Description
    34
  - Features
    34
  - Pinning
    34
  - Block Diagram
    35
- Tda8946J Stereo Audio Amplifier
  36
  - Features
    36
- Tda8358J Vertical Amplifier
  38
  - Features
    38
- Tda6108Jf
  40
- 24C16 - 16 Kb Eeprom
  41
- Str - W6754
  42
  - General Description
    42
  - Features
    42
  - Block Diagram
    42
  - Pin Description
    43
  - Mosfet Electrical Characteristics
    43
  - Electrical Characteristics
    44
5 Cp-850Fx Chassis Description

45
- Power Supply Block Diagram
  45
- Video & Stereo Audio Block Diagram
  46
- If Section
  47
  - Block Diagram
    47
  - Vision if Amplifier
    48
  - Tuner-And Vif-Agc
    48
  - Fpll, Vco and Afc
    48
  - Video Demodulation and Amplifier
    49
  - Sound if Amplifier and Sif-Agc
    49
  - Quasi-Parallel-Sound (Qps) Mixer
    49
  - Standard Switch
    49
  - L' Switch
    49
  - Internal Voltage Stabiliser
    49
- Video / Rgb
  49
  - Front End
    49
  - CVBS Front-End
    49
  - Input Selector
    50
  - Signal Levels and Gain Control
    50
  - Synchronization
    50
  - Chroma Decoder
    50
  - Luminance Processing
    50
  - RGB Front-End
    50
  - Signal Processing
    50
  - Horizontal Prescaler
    50
  - Noise Reduction
    51
  - Noise Measurement
    51
  - Operation Modes
    51
  - Digital 656 Output
    51
  - Back End
    51
  - Digital Input Interface
    51
  - Horizontal Scaler
    51
  - Luma Contrast and Brightness
    52
  - Black Level Expander/Compressor (BLEC)
    52
  - Luma Sharpness Enhancer (LSE)
    52
  - Dynamic Peaking
    52
  - Luma Transient Improvement (LTI)
    52
  - Mixing of Dynamic Peaking and LTI
    52
  - Chroma Transient Improvement
    52
  - Analog Back End
    54
  - Analog RGB Insertion
    54
  - CRT Measurement and Control
    54
  - Synchronization and Deflection
    55
  - EHT Compensation
    55
- Microntroller
  55
  - Microcontroller Features
    55
  - Acquisition Features
    55
  - Ports
    56
  - Μ-CONTROLLER I/O PIN CONFIGURATION and FUNCTION TABLE
    56
  - Tuning
    56
  - Automatic Picture Format Switching
    57
  - WSS Data
    57
  - SCART Pin 8 Data (Slow Switching)
    58
  - Picture Format Description
    58
  - 16:9 Crt
    58
  - 4:3 Crt
    59
  - External Source Control Logic
    60
  - Over Current Protection
    61
- Teletext Display
  61
- Sound Processing
  62
  - Analogue Sound if - Input Section
    62
  - Quadrature Mixers
    62
  - Phase and am Discrimination
    62
  - Nicam Decoder
    63
  - Dsp Section
    63
  - Sound Mode Switching
    63
- Sound Amplification
  63
  - Power Amplifier
    63
  - Mode Selection
    64
- Vertical Deflection
  64
  - Flyback Voltage
    64
  - Protection
    64
  - Guard Circuit
    64
  - Damping Resistor
    64
  - East-West Amplifier
    64
- Power Supply (Str-W6754) - Functions of each Terminal
  65
6 Service Parts List

78
- Dtf-2950
  78
7 Exploded View

86
- Dtf-2950
  86
8 Printed Circuit Board

87
- Main Pcb
  87
- Union Pcb
  88
- Crt Pcb
  89
9 Schematic Diagram

90
- Main
  90
- Union & Crt
  91

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