Manuals
/
Daewoo
/
TV and Video
/
CRT Television
Daewoo
20T2, 21Q2, 21Q1, 14T2, 21Q4, 14Q2, 20Q1, 14Q1, 21T2, 20Q3, 14T1, 21T1, 14Q3, 20Q2, 20T1
service manual
Models:
14Q3
20T2
21Q2
21Q1
21T2
14Q1
21Q4
20T1
20Q1
14T2
20Q2
21T1
14Q2
14T1
20Q3
1
70
77
77
Download
77 pages
32.74 Kb
67
68
69
70
71
72
73
74
Troubleshooting
Specs
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
Page 70
Image 70
Page 69
Page 71
Page 70
Image 70
Page 69
Page 71
Contents
Chassis CP-370
Contents
Specifications
Safety Instruction
RAY Radiation Precaution
White Balance
Alignment Instructions
Screen
Focus
Vertical Slope
Geometry Vertical Center
Vertical Size
Vertical S-CORRECTION
Page
IC Description
Cmos Compatible I/O Pins
Plastic 42 Ysdp Pins Package Block Diagram
Display
Feature Acquisition
Synchronization
Sdip 52 package Supply voltage Block Diagram
Controller
Pin Name Symbol Description
Pin Description
Cvbs
Features
PIN Symbol Description
Audio
RGB
Block Diagram
Pin Description Name
Sound if Input
Vertical Guard
Name Description
Beam current limitinq
Luminance
EAST-WEST Drive
3Block Diagram Pin Description
TDA4665Base Band Delay Line
PIN Description
Symbol PIN Description
TDA8395 Secam Decoder
Block Diagram Pin Description
TDA6106Q Video Output Amplifier
I802 PC817
Veco
TDA8356 DC-coupled vertical deflection circuit
3Block Diagram 4Pin Description
TDA7056 BTL Audio Output Amplifier 1 Speaker Model
STR-S5707 Hybrid IC for a Switching Regulator
PIN Name Symbol Description
Ta=25 Description Terminal
Symbol Rating Unit
MIN TYP MAX
Rating Unit
TDA8138 5.1V+12V regulator with Disable and Reset
TDA 1519BAUDIO Output Amplifier 2 Speaker Model
PIN Signal Description
PCA84C 122AIC Remocon
Circuit Description
Geometry processing
Vertical synchronization
Colour decoder
Integrated video filters
Tuning
RGB output and black current stabilization
Base band delay line TDA4665
TDA8356 vertical deflection
Horizontal deflection
VIN terminal, start-up circuit
Power Supply STR-S5707
Video amplifiers
Oscillator, F/B terminal voltage Pin
Latch circuit
Drive circuit
OCP over-current protection function
Thermal shutdown circuit
Trouble Shooting Charts
No Raster
No Pictureraster OK
No Vertical Scaningone Horizontal Line on Screen
No Color
No Soundpicture OK
Abnormal Normal
No External A/VRF OK
No ON-SCREEN Displaypicture OK
Remote Control Unit Troublelocal Control OK
User’s control condition
IC DC Voltage Charts
Input signal
Line Voltage
I502TDA4665
I501TDA8374A
I301TDA8356
I503TDA8395
Electrical Parts List
LOC PART-CODE PART-NAME Part Type Remark
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
Difference Part List
LOC Part Name
CP-370 Inch Difference Part List
LOC Part Name Model Remark
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Top
Page
Image
Contents