Daewoo 14T2, 21Q2, 21Q1, 21Q4, 14Q2, 20Q1, 14Q1, 21T2, 20Q3, 14T1, 20T2, 21T1, 14Q3, 20Q2, 20T1 Contents

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CONTENTS
Specifications	1
Safety Instruction	2
Circuit block Diagram	3
Alignment Instructions	4
IC Description	7
Circuit Description	31
PCB Layouts
PRINTED CIRCUIT BOARDS	38
SCHEMATIC DIAGRAM	39
Trouble Shooting Charis	40
Important IC Voltage Charts	47
Electrical Part List	49
Q Model T Model Difference Part List	64
Inch difference Part List	65
Mechanical Exploded View and Part List	66

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Contents Chassis CP-370 Contents Specifications Safety Instruction RAY Radiation PrecautionWhite Balance Alignment InstructionsScreen FocusVertical Slope Geometry Vertical CenterVertical Size Vertical S-CORRECTIONPage IC Description Cmos Compatible I/O Pins Plastic 42 Ysdp Pins Package Block DiagramSynchronization Feature AcquisitionDisplay Sdip 52 package Supply voltage Block Diagram ControllerPin Name Symbol Description Pin DescriptionCvbs Features PIN Symbol DescriptionAudio RGBBlock Diagram Pin Description Name Sound if InputBeam current limitinq Name DescriptionVertical Guard Luminance EAST-WEST Drive PIN Description TDA4665Base Band Delay Line3Block Diagram Pin Description Symbol PIN Description TDA8395 Secam DecoderBlock Diagram Pin Description TDA6106Q Video Output AmplifierI802 PC817 VecoTDA8356 DC-coupled vertical deflection circuit 3Block Diagram 4Pin Description TDA7056 BTL Audio Output Amplifier 1 Speaker ModelSTR-S5707 Hybrid IC for a Switching Regulator PIN Name Symbol DescriptionTa=25 Description Terminal Symbol Rating UnitMIN TYP MAX Rating UnitTDA8138 5.1V+12V regulator with Disable and Reset TDA 1519BAUDIO Output Amplifier 2 Speaker Model PIN Signal Description PCA84C 122AIC RemoconCircuit Description Colour decoder Vertical synchronizationGeometry processing RGB output and black current stabilization TuningIntegrated video filters Base band delay line TDA4665 TDA8356 vertical deflection Horizontal deflectionVIN terminal, start-up circuit Power Supply STR-S5707Video amplifiers Oscillator, F/B terminal voltage PinLatch circuit Drive circuitOCP over-current protection function Thermal shutdown circuitTrouble Shooting Charts No RasterNo Pictureraster OK No Vertical Scaningone Horizontal Line on Screen No Color No Soundpicture OK Abnormal NormalNo External A/VRF OK No ON-SCREEN Displaypicture OKRemote Control Unit Troublelocal Control OK User’s control condition IC DC Voltage ChartsInput signal Line VoltageI502TDA4665 I501TDA8374AI301TDA8356 I503TDA8395Electrical Parts List LOC PART-CODE PART-NAME Part Type RemarkPTSPPWA499 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 NameCP-370 Inch Difference Part List LOC Part Name Model RemarkPage Page Page Page Page Page Page Page Page Page Page