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File name daewoo_tv_ch_cp370.pdf

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 PP @@ ,, DAEWOO ELECTRONICS CO., LTD. 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 Specifications Q : 1SPEAKER MODEL, T : 2SPEAKER MODEL VM : WITHOUT TXT. MODEL, TM : WITH TXT. MODEL TV Standard Mains Voltage Power Consumption PAL/SECAM-B/G, D/K, I, H, NTSC-3.58/4.43 100~250V AC, 50/60Hz 14"Q = 69W, 14"T = 74W 20"Q = 79W, 20"T = 84W 21"Q = 79W, 21"T = 84W Sound output . 1 Speaker : 3W( at 80% MOD. 10% THD) . 2 Speaker : 4W + 4W( at 80% MOD. 10% THD) Speaker . 1 Speaker : 3W, 16 ohm . 2 Speaker : 7.5W, 8 ohm(2EA) Antenna Impedance Tuning system Memory channel Reception channel Unit 75 ohm unbalanced 300 ohm balanced with supplied balun Voltage Synthesize Tuning System VM : 100 channels, TM : 70 channels VHF - L : CH2 - CH4 VHF - H : CH5 - CH12 Cable Band : CHS1' - CHS3', CHS1 - CHS20 Hyper Band : CHS21 - CHS40(option) UHF : CH21 - CH69 Remote control Screen size VM : R-28B04, TM : R-28B03 14" : 34cm (A34JLL 90 02) 20" : 48cm (A48JLL 90 02) 21" : 51cm (A51JLL 90 02) Weight 14" : 9.5Kg(set) 20" : 16.5Kg(set) 21" : 20.5Kg(set) Indication On-Screen Display - MENU Picture(Bright, Color, Contrast, Sharpness, TIN