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Daewoo 21Q1, 21Q2, 14T2, 21Q4, 14Q2, 20Q1, 14Q1, 21T2, 20Q3, 14T1, 20T2, 21T1 service manual Chassis CP-370

Models: 14Q3 20T2 21Q2 21Q1 21T2 14Q1 21Q4 20T1 20Q1 14T2 20Q2 21T1 14Q2 14T1 20Q3

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Service Manual

38 / 48 / 51 Cm Mono Colour Television

CHASSIS : CP-370

MODEL : 14Q1/20Q1/21Q1 14Q2/20Q2/21Q2 14Q3/20Q3/21Q4 14T1/20T1/21T1 14T2/20T2/21T2 14T3/20T3

DAEWOO ELECTRONICS CO., LTD.

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Daewoo 21Q1, 21Q2, 14T2, 21Q4, 14Q2, 20Q1, 14Q1, 21T2, 20Q3, 14T1, 20T2, 21T1, 14Q3, 20Q2, 20T1 service manual Chassis CP-370

Contents

Chassis CP-370 Contents Specifications RAY Radiation Precaution Safety Instruction Screen Alignment InstructionsWhite Balance Focus Vertical Size Geometry Vertical CenterVertical Slope Vertical S-CORRECTIONPage IC Description Plastic 42 Ysdp Pins Package Block Diagram Cmos Compatible I/O Pins Display Feature AcquisitionSynchronization 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 Vertical Guard Name DescriptionBeam current limitinq Luminance EAST-WEST Drive 3Block Diagram Pin Description TDA4665Base Band Delay LinePIN 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 MIN TYP MAX Symbol Rating UnitTa=25 Description Terminal Rating Unit TDA8138 5.1V+12V regulator with Disable and Reset TDA 1519BAUDIO Output Amplifier 2 Speaker Model PCA84C 122AIC Remocon PIN Signal Description Circuit Description Geometry processing Vertical synchronizationColour decoder Integrated video filters TuningRGB output and black current stabilization Base band delay line TDA4665 Horizontal deflection TDA8356 vertical deflection Video amplifiers Power Supply STR-S5707VIN terminal, start-up circuit Oscillator, F/B terminal voltage Pin OCP over-current protection function Drive circuitLatch circuit Thermal shutdown 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 Input signal IC DC Voltage ChartsUser’s control condition Line Voltage I301TDA8356 I501TDA8374AI502TDA4665 I503TDA8395 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 ListPage Page Page Page Page Page Page Page Page Page Page