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

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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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Contents Chassis CP-370 Contents Specifications RAY Radiation Precaution Safety InstructionScreen Alignment InstructionsWhite Balance FocusVertical Size Geometry Vertical CenterVertical Slope Vertical S-CORRECTIONPage IC Description Plastic 42 Ysdp Pins Package Block Diagram Cmos Compatible I/O PinsDisplay Feature AcquisitionSynchronization Controller Sdip 52 package Supply voltage Block DiagramPin Description Pin Name Symbol DescriptionCvbs PIN Symbol Description FeaturesRGB AudioBlock Diagram Sound if Input Pin Description NameVertical Guard Name DescriptionBeam current limitinq Luminance EAST-WEST Drive 3Block Diagram Pin Description TDA4665Base Band Delay LinePIN Description TDA8395 Secam Decoder Symbol PIN DescriptionTDA6106Q Video Output Amplifier Block Diagram Pin DescriptionVeco I802 PC817TDA8356 DC-coupled vertical deflection circuit TDA7056 BTL Audio Output Amplifier 1 Speaker Model 3Block Diagram 4Pin DescriptionPIN Name Symbol Description STR-S5707 Hybrid IC for a Switching RegulatorMIN TYP MAX Symbol Rating UnitTa=25 Description Terminal Rating UnitTDA8138 5.1V+12V regulator with Disable and Reset TDA 1519BAUDIO Output Amplifier 2 Speaker Model PCA84C 122AIC Remocon PIN Signal DescriptionCircuit Description Geometry processing Vertical synchronizationColour decoder Integrated video filters TuningRGB output and black current stabilization Base band delay line TDA4665 Horizontal deflection TDA8356 vertical deflectionVideo amplifiers Power Supply STR-S5707VIN terminal, start-up circuit Oscillator, F/B terminal voltage PinOCP over-current protection function Drive circuitLatch circuit Thermal shutdown circuitNo Raster Trouble Shooting ChartsNo Pictureraster OK No Vertical Scaningone Horizontal Line on Screen No Color Abnormal Normal No Soundpicture OKNo ON-SCREEN Displaypicture OK No External A/VRF OKRemote Control Unit Troublelocal Control OK Input signal IC DC Voltage ChartsUser’s control condition Line VoltageI301TDA8356 I501TDA8374AI502TDA4665 I503TDA8395LOC PART-CODE PART-NAME Part Type Remark Electrical Parts ListPTSPPWA499 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 ListLOC Part Name Model Remark CP-370 Inch Difference Part ListPage Page Page Page Page Page Page Page Page Page Page