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S/M No. : DSC150BEF0
Service Manual
Color Television
CHASSIS : SC-150
Model : DSC-3220E/3220L
DAEWOO ELECTRONICS Corp.
http : //svc.dwe.co.kr DEC . 2002
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Service manual SC-150 Contents 1 - Main features ........................................................................................................................................................ 4 1-1 Specifications .................................................................................................................................................. 4 1-2 Channel table ............................................................................................................
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Service manual SC-150 4-5-2 TDA8358J .............................................................................................................................................. 33 4-6 TDA6107Q .......................................................................................................................................................... 33 4-7 24C16 - 16 Kb EEPROM .........................................................................................................................
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Service manual SC-150 5-3-17 Analogue RGB Insertion .....................................................................................................................50 5-3-18 Fast-Blank Monitor ..................................................................................................... ........................... 50 5-3-19 Vertical and East/West Deflection .................................................................................... ................... 50 5-3-20 EHT Com
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Service manual SC-150 1- Main Features 1-1 Specifications TV standard PAL - SECAM B/G D/K, PAL I/I, SECAM L/L' Sound system NICAM B/G, I, D/K, L, FM 2Carrier B/G, D/K Power consumption 32" 16:9 Real Flat : 110W approx. o er Sound Output P w 7W x2 (at 1KHz, 60% mod, 10% THD) Speaker 10W(Normal) 8 ohm X 2 Teletext system 10 pages memory FASTEXT (FLOF or TOP) Aerial input 75 ohm unbalanced Channel coverage Off-air channels, S-cable channels and hyperband Tuning system frequency synthesiser t
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Service manual SC-150 Specification matrix Chassis Name SC-150 Model Name DSC-3220E DSC-3220L 3834 VCT Version Software Version A Remote Control R46G22 PCB Serial Number 4859812224(MAIN)/ 4959812324(Union) Tube 16:9 Real Flat SVHS 3 "Picture Improvements, Comb Filter, Horizontal Scaler" Teletext Split Screen Auto / 4:3 / 14:9 / Zoom 14:9 /Zoom Formats Available in Video Mode 16:9 / Full Screen AV2 Monitor Output MSP Version 3410G 3411G Sound Dffects Off / Spatial Off / Spatial / Panorama / Dolb
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Service manual SC-150 21 Pin EURO-SCART 1 : Pin Signal Description Matching value 1 Audio Output Right 0.5 Vrms, Impedance < 1 , ( RF 54% Mod ) 2 Audio Input Right 0.5 Vrms, Impedance > 10 3 Audio Output Left 0.5 Vrms, Impedance < 1 , ( RF 54% Mod ) 4 Audio Earth 5 Blue Earth 6 Audio Input Left 0.5 Vrms, Impedance > 10 7 Blue Input 0.7 Vpp ±0.1V, Impedance 75 8 Slow Switching TV : 0 to 2V, AV 16/9 : 4.5 to 7V, AV 4/3 : 9.5 to 12V , Impedance > 10 9 Green Earth 10 N.C. 11 Green Input 0.7 Vp
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Service manual SC-150 19 Video Output 1 Vpp 3dB, Impedance 75 ( Monitor output ) - Not available for cp885 20 Video Input, Y In. 1 Vpp 3dB, Impedance 75 21 Common Earth -7-
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Service manual SC-150 1-2 Channel table FREQUENCY TABLE CH EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT C01 46.25 - 47.75 49.75 C02 48.25 55.75 (L’) 53.75 59.25 C03 55.25 60.5 (L’) 61.75 77.25 C04 62.25 63.75 (L’) 175.25 85.25 C05 175.25 176.00 183.25 93.25 C06 182.25 184.00 191.25 175.25 C07 189.25 192.00 199.25 183.25 C08 196.25 200.00 207.25 191.25 C09 203.25 208.00 215.25 199.25 C10 210.25 216.00 223.25 207.25 C11 217.25 189.25 (LUX) 231.25 215.25 C12 224.25 69.25 (L’) 239.25 223.25 C13 53.75 7
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Service manual SC-150 CH EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT C42 639.25 639.25 639.25 639.25 C43 647.25 647.25 647.25 647.25 C44 655.25 655.25 655.25 655.25 C45 663.25 663.25 663.25 663.25 C46 671.25 671.25 671.25 671.25 C47 679.25 679.25 679.25 679.25 C48 687.25 687.25 687.25 687.25 C49 695.25 695.25 695.25 695.25 C50 703.25 703.25 703.25 703.25 C51 711.25 711.25 711.25 711.25 C52 719.25 719.25 719.25 719.25 C53 727.25 727.25 727.25 727.25 C54 735.25 735.25 735.25 735.25 C55 743.25 743.25
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Service manual SC-150 CH EUROPE CCIR FRANCE GB(IRELAND) EAST OIRT S10 168.25 212.75 - 168.25 S11 231.25 224.75 - 231.25 S12 238.25 236.75 - 238.25 S13 245.25 248.75 255.25 245.25 S14 252.25 260.75 263.25 252.25 S15 259.25 272.75 271.25 259.25 S16 266.25 284.75 279.25 266.25 S17 273.25 296.75 287.25 273.25 S18 280.25 136.00 295.25 280.25 S19 287.25 160.00 303.25 287.25 S20 294.25 - - 294.25 S21 303.25 303.25 - 303.25 S22 311.25 311.25 311.25 311.25 S23 319.25 319.25 319.25 319.25 S24 327.25 327.2
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Service manual SC-150 1-3 ATSS sorting method The TV set sweeps all the TV bands from beginning of VHF to end of UHF. The TV controlling software for each program checks if a VPS CNI code is transmitted ( this system exists for German, Swiss and Austrian transmissions). If no VPS CNI code is found, then the system check if a CNI code is transmitted as part of the teletext transmission ( Packet 8/30 format 1 ). If such a code ( VPS or teletext ) is found and if this code is in the ATSS list, the
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Service manual SC-150 The sor ting order within group II, III, and IV is based on the channel frequency. The Pro gram with the lo west frequency is allocated the first rank in its group, and so f orth until the last program of the group which has the highest fr equency. Special case : France If France is selected, the TV controlling softw are f irst swe eps all TV bands with Fr ance system selected ( positive video modulation) and the a second time with Europe system selected ( negative
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Service manual SC-150 2 - Safety instruction WARNING: Only competent service personnel may carry out work involving the testing or repair of this equipment. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not exceed the specified limit. The nominal value of the high voltage of this receiver is 26 KV (25” - 28”) at max beam current. The high voltage must not, under any circumstances, exceed 29.5
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Service manual SC-150 3 - Alignment instructions 3-1 Microcontroller configuration : Service mode To switch the TV set into service mode please see instruction below. 1 - Select pr. number 91 2 - Adjust sharpness to minimum and exit all menu. 3 - Quickly press the key sequence : RED - GREEN - menu To software version is displayed beside the word Service, e.g. “ SERVICE V2.00A”. To exit SERVICE men u press men u key or Std By key. 3-2 Service mode navigation Pr Up / Down remote keys : cycle thro
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Service manual SC-150 3-3 Microcontroller configuration : Option bits These option bits are available from Service mode. First find the OPTION control, and then use keys 0...7 on the remote keypad to control bits 0 to 7 respectively. The table below shows the options a vailable ; OPTION 1 B7 B6 B5 B4 B3 B2 B1 B0 Tuner options AUTO 4:3 TOP text FASTEXT SVHS3 1 TUBE 4:3 switch to off FLOF off disable 00=Philips PANORAMA X 01=ALPS FASTEXT TOP text 10=Philips (AGC intern) AUTO 4:3 SVHS3 0 TUBE 16:9
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Service manual SC-150 3-4-6- Horizontal picture centring Adjust HOR CEN(Horizontal center) to have the picture in the center of the screen. 3-4-7- Eau/West comection Adjust the PARABOLA, HOR WIDTH, CORNER, HOR PARAL, EW TRAPEZ, H BOW, to compensate for geometrical distorrin, HOR PARAL H BOW For HOR WIDTH, adjust for 91% overscan. HOR WIDTH PARAROLA -16-
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Service manual SC-150 CORNER EW TRAPEZ 3-4-8- AGC - Adjust the antenna signal level at 70 dB V 2 - Tune a colour bar pattern. - Find the AG “ C” item in service mode. - Adjust AGC volume ( RB10 ) to bring the cursor to central position : 32. -17-
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Service manual SC-150 4 - IC description 4-1 VCT383XA TV signal processor - Teletext decoder with embedded 8 bit - Controller. 4-1-1- Block diagram of the VCT VCT 38xx 22 2 4 3 VIN Display RGBOUT Video Comb Color Panorama Processor Video 3 CIN SVM Front-end Filter Decoder Scaler Back-end 4 Pict. Improv RGBIN VOUT VSUPAB GNDAB 2 2 AOUT I C 3 Audio AIN MSync 8 Color, Prio VSync 2 2 I C Master 2 I C BE TPU DMA CPU RDY 8-bit PWM 24 kB ROM 14-bit PWM 15:1 Mux RESQ 10-bit ACD 3 kB 1 kB Reset OSD RA
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Service manual SC-150 Horizontal scaling ( 0.25 to 4 ) Panoramavision Black-level expander Dynamic peaking Soft limiter (gamma cor rection) Colour transient improvement Programmable RGB matrix Analogu e RGB/Fastblank input Half-contrast switch Picture frame generator Scan velocity modulation output High-performance H/V deflection Angle and bow correction Separate ADC for tube measurements EHT compensation 4-1-3- -Controller 8-bit, 10-Mhz CPU (65C02) 96 kB prog
