Manuals
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Daewoo
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TV and Video
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CRT Television
Daewoo
21Q2, 21Q1, 14T2, 21Q4, 14Q2, 20Q1, 14Q1, 21T2, 20Q3, 14T1, 20T2, 21T1, 14Q3, 20Q2, 20T1
service manual
Models:
14Q3
20T2
21Q2
21Q1
21T2
14Q1
21Q4
20T1
20Q1
14T2
20Q2
21T1
14Q2
14T1
20Q3
1
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Troubleshooting
Specification
Parts list
3Block Diagram Pin Description
PIN Signal Description
Base band delay line TDA4665
Pin Name Symbol Description
Cmos Compatible I/O Pins
Tuning
RAY Radiation Precaution
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Contents
Chassis CP-370
Contents
Specifications
RAY Radiation Precaution
Safety Instruction
Focus
Alignment Instructions
Screen
White Balance
Vertical S-CORRECTION
Geometry Vertical Center
Vertical Size
Vertical Slope
Page
IC Description
Plastic 42 Ysdp Pins Package Block Diagram
Cmos Compatible I/O Pins
Feature Acquisition
Display
Synchronization
Controller
Sdip 52 package Supply voltage Block Diagram
Pin Description
Pin Name Symbol Description
Cvbs
PIN Symbol Description
Features
RGB
Audio
Block Diagram
Sound if Input
Pin Description Name
Name Description
Vertical Guard
Beam current limitinq
Luminance
EAST-WEST Drive
TDA4665Base Band Delay Line
3Block Diagram Pin Description
PIN Description
TDA8395 Secam Decoder
Symbol PIN Description
TDA6106Q Video Output Amplifier
Block Diagram Pin Description
Veco
I802 PC817
TDA8356 DC-coupled vertical deflection circuit
TDA7056 BTL Audio Output Amplifier 1 Speaker Model
3Block Diagram 4Pin Description
PIN Name Symbol Description
STR-S5707 Hybrid IC for a Switching Regulator
Rating Unit
Symbol Rating Unit
MIN TYP MAX
Ta=25 Description Terminal
TDA8138 5.1V+12V regulator with Disable and Reset
TDA 1519BAUDIO Output Amplifier 2 Speaker Model
PCA84C 122AIC Remocon
PIN Signal Description
Circuit Description
Vertical synchronization
Geometry processing
Colour decoder
Tuning
Integrated video filters
RGB output and black current stabilization
Base band delay line TDA4665
Horizontal deflection
TDA8356 vertical deflection
Oscillator, F/B terminal voltage Pin
Power Supply STR-S5707
Video amplifiers
VIN terminal, start-up circuit
Thermal shutdown circuit
Drive circuit
OCP over-current protection function
Latch circuit
No Raster
Trouble Shooting Charts
No Pictureraster OK
No Vertical Scaningone Horizontal Line on Screen
No Color
Abnormal Normal
No Soundpicture OK
No ON-SCREEN Displaypicture OK
No External A/VRF OK
Remote Control Unit Troublelocal Control OK
Line Voltage
IC DC Voltage Charts
Input signal
User’s control condition
I503TDA8395
I501TDA8374A
I301TDA8356
I502TDA4665
LOC PART-CODE PART-NAME Part Type Remark
Electrical Parts List
PTSPPWA499 Speaker AS DTC-14Q1VM
IC AMP
5PTPS60MB Filter Cera TPS 6.0MBEFC-S6ROME3
CEXF1H229V Electro
CEXF1H470V Electro
5PXPS45MB Filter Cera TPS-4.5MB Trap Tapping
CCZB1H181K Cera
DUZ5R1BM Diode Zener
Coil Peaking
Wire Copper AWG22 1/0.65 TIN Coating
R530 RD-AZ203J
R703 RD-AZ272J
# Front A/V Part List Option
Conn ASS’Y
LOC Part Name
Difference Part List
LOC Part Name Model Remark
CP-370 Inch Difference Part List
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Contents