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DDT-21H9ZDF(21")
Daewoo DDT-21H9ZDF(21") TV Combination Manuals
Manuals and User Guides for Daewoo DDT-21H9ZDF(21") TV Combination. We have
1
Daewoo DDT-21H9ZDF(21") TV Combination manual available for free PDF download: Service Manual
Daewoo DDT-21H9ZDF(21") Service Manual (116 pages)
tv/dvd combination
Brand:
Daewoo
| Category:
TV
| Size: 8 MB
Table of Contents
Service Manual
1
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
Microcontroller Configuration : Service Mode
11
Service Mode Navigation
11
Microcontroller Configuration : Option Bits
12
TV Set Alignment
12
The Adjustment of Screen
12
The Adjustment of Focus
12
The Adjustment of White Balance
12
The Adjustment of Geometry
12
The Adjustment of Vertical Center
12
The Adjustment of Vertical Size
13
The Adjustment of Vertical Slope
13
The Adjustment of S-Correction
13
The Adjustment of Horizontal Center
13
The Adjustment of Horizontal Width
14
The Adjustment of Pincusion
14
The Adjustment of Parabola
14
The Adjustment of Corner
14
The Adjustment of H.parabola
14
The Adjustment of H.bow
15
The Adjustment of EW TRAPEZIUM
15
The Adjustment of RF AGC
15
Setting the Conditions for Finished Products
15
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
MSP341 X Multistandard Sound Processor
22
Basic Features of the Msp341X
22
Demodulator and NICAM Decoder Section
22
DSP-Section (Audio Baseband Processing)
23
Analogue Section
23
NICAM Plus FM/AM-Mono
23
German 2-Carrier System (DUAL FM System)
23
TDA9859 Universal Hi-Fi Audio Processor for TV-(14")
26
Features
26
General Description
26
Quick Reference Data
26
Block Diagram
27
Pinning
28
Functional Description
29
Source Select Switches Block
29
Loudspeaker Channel
29
Effect Controls
29
C-Bus Conrol
29
TDA9886 IIC-Bus Controlled Single/Multi Standard Algnment-Free IF-PLL
30
Features
30
Pinning
30
Description
32
Tda894Xj Stereo Audio Amplifier
32
Feature
32
TDA8357J Vertical Amplifier
34
Features
34
General Description
34
Quick Reference Data
34
Stv5109
35
24C16-16Kb EEPROM
37
Str - F6654(21"), Str-F6653(14")
37
General Description
37
Features
37
Block Diagram
38
Pins Description
38
Control Part Electrical Characteristics
39
MOSFET Electrical Chatacteristics
39
5 Circult Description
40
Block Diagram
40
If Section
42
Picture if Amplifier
42
Tuner and VIF-AGC
42
VIF-AGC Detector
42
Frequency Phase-Locked Loop(FPLL) Detector
42
VCO and Divider
42
Digital Acquisition Help and AFC
43
Video Demodulator and Amplifier
43
Sound Carrier Trap
43
SIF Amplifier
43
AGC Detector
43
Single Reference QSS Mixer
44
AM Demodulator
44
FM Demodulator and Acquisition Help
44
Audio Amplifier and Mute Time Constant
44
I 2 C-Bus Transceiver and MAD (Module Address)
45
Internal Voltage Stabilizer
45
Video - VCT Description
45
Introduction
45
Video Front-End
45
Input Selector
45
Clamping
45
Automatic Gain Control
45
Digitally Controlled Clock Oscillator
45
Analogue Video Output
45
Adaptive Comb Filter (VCT3834A Only)
46
Color Decoder
46
Horizontal Scaler (VCT3834A Only)
46
Video Sync Processing
46
Display Processing
47
Chroma Transient Improvement
47
Video Back-End
47
CRT Measurement and Control
47
Average Beam Current Limiter
47
Analogue RGB Insertion
47
Fast-Blank Monitor
47
Vertical and East/West Deflection
48
EHT Compensation
48
Reset Function
48
Standby and Power-On
48
Microcontroller
48
Introduction
48
Cpu
48
Controller I/O Pin Configuration and Function
48
Tuning
49
Over Current Protection
49
Teletext Display
49
Sound Processing
50
Analogue Sound if - Input Section
50
Quadrature Mixers
50
Phase and am Discrimination
50
NICAM Decoder
50
DSP Section
50
Sound Mode Switching
50
Audio Processing
51
Mono Audio Signal from if IC-Input Section
51
Source Select Switching Block
51
Effect Controls
51
Loudspeaker Channel
51
Sound System Selection
51
Sound Amplification
52
Power Amplifier
52
Mode Selection
52
Vertical Deflection
52
Fyback Voltage
52
Protection
52
Guide Circuit
53
Damping Resustir
53
EAST-WAST Amplifier(TDA8357J)
53
Power Supply(STR-F6654:CP-099FS, F6653:CP-099)
53
STR-F6654 General Description
53
Power Supply Primary Part Operations
53
Start-Up Circit:V
53
STR-F6654 Oscillating Operation
54
STR-F6654 Protection Circuits
55
TV Start-Up, TV Normal Run and Stand by Mode Operations
56
TV Start-Up Operations
56
TV Normal Run and Stand-By Mode Operations
56
DVD
60
Electirical Troubleshooting Guide
60
Circuit Diagram
62
Troubleshooting
62
Circuit Operational Description
72
6 Service Parts List
85
7 Different Parts List by CRT
104
8 Exploded View
105
9 Printed Circuit Board
108
10 Schematic Diagram
112
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