Daewoo DSC-3270E, Service Manual

Page 1: ...TSC130BEF0 September...

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Page 4: ...Vrms Imp 10 k RF 60 MOD 7 Blue in 0 7Vpp 2dB Imp 75 8 Slow Function Switching TV 0 2V PERI 9 5 12V Imp 10 k 9 Green Earth 10 NC 11 Green In 0 7Vpp 2dB Imp 75 12 NC 13 Red Earth 14 Rapid Blanking Switc...

Page 5: ...4 3 Circuit Block Diagram...

Page 6: ...ER PR PAGE NUMBER NUMBER 0 9 0 9 SLEEP Not used Not used CANCEL Not used HOLD RECALL SUBPAGE STILL REVEAL Not used R Not used G PR UP PAGE UP VOLUME UP VOLUME UP CURSOR RIGHT NORMAL Not used AV Not us...

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Page 9: ...with the select H Center by volume UP DOWN keys 4 7 EW 4 7 1 WIDTH 1 Apply a RETMA PATTERN Signal 2 Adjust the horizontal width to make a perfect circle with the select H Width by volume UP DOWN keys...

Page 10: ...o be on the center position 4 9 SUB BRIGHT 4 9 1 Pattern Retma 4 9 2 Adjust the SUB BRIGHT with the select Sub Bri by volume UP DOWN keys so that only H Center parts of picture can be seen 4 10 DOUBLE...

Page 11: ...rupt controller keep running at a frequency programmable via the CCU In this mode the power consumption of the device can be reduced by more than 95 LP WFI Wait For Interrupt Mode The Wait For Inter r...

Page 12: ...text and Display RAM 56 lead Shrink DIP package 28 fully programmable I O pins Serial Peripheral Interface Flexible Clock controller for OSD Data Slicer and Core clocks running from one single low fre...

Page 13: ...12 3 Block Diagram IC description...

Page 14: ...put of the oscilltor inverter and internal clock generator OSCOUT is the output of the oscillator inverter VSYNC Vertical Sync Vertical video synchronisation input to OSD Positive or negative polarity...

Page 15: ...processing VPC 3215 submicron CMOS technology Pin 1 Ground Analog Front End GND Pin 2 Ground Analog Front End GND Pin 3 CCU 5 MHz Clock Output CLK5 This pin provides a clock frequency for the TV micro...

Page 16: ...tal switching of up to 8 sources to the back end processor Switching for different sources is prioritized and can be on a per pixel basis Pin 51 Ground Output Pad Circuitry GND Pin 52 VGAV Input This...

Page 17: ...obtained 2 Feature analog input for RGB or YUV and Fast Blank triple 8 bit analog to digital converters for RGB YUV with internal programmable clamping single 6 bit analog to digital converter for Fas...

Page 18: ...C4 carry the halfbyte nibble multiplex format In a stand alone application where the CIP 3250A serces as an AD converter these are the outputs for the digital Red sig nal pure binary or the digital ch...

Page 19: ...te All ground pins of the chip i e 18 52 58 60 62 64 66 and 68 must be connected together low resistive The layout of the PCB must take into consideration the need for a low noise ground Pin 59 ADREF...

Page 20: ...d together low rresistive The layout of the PCB must take into consideration the need for a low noise ground Pin 67 RV Analog Red V Chroma Input This input pin takes the AC coupled analog component si...

Page 21: ...write control clock can be halted high or low for any duration as long as the power is on Internal conflicts of memory access and refreshing operations are prevented by special arbitration logic The M...

Page 22: ...Out operation High speed asynchronous serial access Read write cycle time 25 ns 30 ns Access time 23 ns 25 ns Direct cascading capability Write mask function Input enable control Data skipping functio...

Page 23: ...te Enable 25 RE Read Enable 21 IE Input Enable 24 OE Output Enable 18 RSTW Write Resert Clock 27 RSTR Read Reset Clock 2 3 5 6 7 8 10 11 12 13 15 16 Data Input 29 30 32 33 34 35 37 38 39 40 42 43 Data...

Page 24: ...ng soft limiter gamma correction color transient improvement programmable RGB matrix picture frame generator two analog RGB Fast Blank inputs Deflection processing scan velocity modulation output high...

Page 25: ...ture tube from burn in in the event of a malfunction of the vertical deflection stage If the peak to peak value of the vertical sawtooth signal is too small the RGB output signals are blanked Pin 12 H...

Page 26: ...ctance is required Pin 30 34 Fast Blank Input FBLIN1 2 These pins are used to switch the RGB outputs to the external analog RGB inputs FBLIN1 switches the RIN1 GIN1 and BIN1 inputs FBLIN2 switches the...

Page 27: ...the vertical sync informatoion Either single or double vertical frequency or VGA vertical sync signal Pin 65 66 Crystal Output Input XTAL2 XTAL1 These pins are connectecd to an 5 MHz crystal oscillat...

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Page 30: ...6X31 5 C857 CEYF1V332C C ELECTRO 35V RUS 3300MF 18 35 5 C863 CH1FFF472M C CERA AC AC400V 4700PF F DE7150F D850 DR2KY DIODE AVALANCHE R 2 KY TAPPING LOC PART CODE PART NAME PART DESC LOC PART CODE PART...

Page 31: ...CHIP CERA 50V X7R 1000PF K 2012 CC717 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CC718 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC719 HCFK224ZCA C CHIP CERA 50V Y5V 0 22MF Z 2012 CC720 HCBK473KC...

Page 32: ...5X11 TP C120 CEXF1C470V C ELECTRO 16V RSS 47MF 5X11 TP C603 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C613 CEXF1H339V C ELECTRO 50V RSS 3 3MF 5X11 TP C616 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C6...

Page 33: ...PPER AWG22 1 0 65 TIN COATING J039 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J040 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J041 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J042 858010...

Page 34: ...AWG22 1 0 65 TIN COATING J139 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J140 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J141 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J142 85801065GY...

Page 35: ...6 8 OHM J R853 RD 4Z471J R CARBON FILM 1 4 470 OHM J R854 RD 4Z133J R CARBON FILM 1 4 13K OHM J R855 RD 4Z202J R CARBON FILM 1 4 2K OHM J R856 RC 2Z565KP R CARBON COMP 1 2 5 6M OHM K Z101 5PMKT40MA FI...

Page 36: ...PCB POWER RHU AS DSC 3270E CF405 CMXE2J333J C MYLAR 630V PU 0 033MF J TP CF406 CMXE2J333J C MYLAR 630V PU 0 033MF J TP CF407 CMXE2J333J C MYLAR 630V PU 0 033MF J TP CF408 CMXE2J333J C MYLAR 630V PU 0...

Page 37: ...T0 2 R1 6 E95 4856310300 EYE LET BSR T0 2 R1 6 E96 4856310300 EYE LET BSR T0 2 R1 6 N10 4857417500 TERM PIN DA IB0214 D2 3 DY PIN N2 4857417500 TERM PIN DA IB0214 D2 3 DY PIN N3 4857417500 TERM PIN DA...

Page 38: ...301 D1N4937G DIODE 1N4937G TAPPING D302 DUZ5R1BM DIODE ZENER UZ 5 1BM D404 DUZ5R6BM DIODE ZENER UZ 5 6BM TAPPING D406 DRF1 DIODE RF1 D407 DRF1 DIODE RF1 D409 D1N4937G DIODE 1N4937G TAPPING D410 DUZ12B...

Page 39: ...K OHM J RF407 RD AZ103J R CARBON FILM 1 6 10K OHM J RF408 RD AZ223J R CARBON FILM 1 6 22K OHM J RF409 RD AZ182J R CARBON FILM 1 6 1 8K OHM J RF410 RD AZ221J R CARBON FILM 1 6 220 OHM J RF411 RD AZ183J...

Page 40: ...A 25V Y5V 1MF Z 2012 CCD25 HCFH105ZCA C CHIP CERA 25V Y5V 1MF Z 2012 CCD26 HCFH105ZCA C CHIP CERA 25V Y5V 1MF Z 2012 CCD27 HCFH105ZCA C CHIP CERA 25V Y5V 1MF Z 2012 CCD30 HCBK104KCA C CHIP CERA 50V X7...

Page 41: ...A6111Q IC AMP VIDEO TDA6111Q I902A 4857018902 HEAT SINK A1050P H24 I902B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN I903 1TDA6111Q IC AMP VIDEO TDA6111Q I903A 4857018902 HEAT SINK A1050P H24 I903B 717...

Page 42: ...801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J917 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J919 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J932 85801065GY WIRE COPPER AWG22 1 0 65 TIN COA...

Page 43: ...7R 0 1MF K 2012 DC901 DZ02W5R6VA DIODE CHIP ZENER Z02W5 6V DC902 DZ02W5R6VA DIODE CHIP ZENER Z02W5 6V DC903 DZ02W5R6VA DIODE CHIP ZENER Z02W5 6V DC904 DZ02W5R6VA DIODE CHIP ZENER Z02W5 6V DC905 DZ02W5...

Page 44: ...RC981 HRFT750JCA R CHIP 1 10 75 OHM J 2012 RC982 HRFT224JCA R CHIP 1 10 220K OHM J 2012 RC983 HRFT224JCA R CHIP 1 10 220K OHM J 2012 RC984 HRFT750JCA R CHIP 1 10 75 OHM J 2012 RC986 HRFT101JCA R CHIP...

Page 45: ...BK FELT 300X20X0 7 4 CLOTH BLACK 4857817610 7128301212 SCREW TAPP ING T2S WAS 3X12 MFZN BK 7121301212 SCREW TAPP ING T2S PAN 3X12 MFZN BK 47 9 49 4957900400 TUBE 2 GSHS 1625 t0 3 13 7122401612 SCREW...

Page 46: ...CE CH EC KED BY 49 50002200 1 1 mm DESIGNED BY PART CODE EXTERNAL VIEW NA M E M ODEL INSPECTED BY PART NA M E EXTERNAL VIEW M ATERIAL PART NA M E N D Q TY DSC 3270 E LIST O F M ODIFICATION 3 4 5 3 2 1...

Page 47: ...46 Mechanical Exploded View...

Page 48: ...47 9 Printed Circuit Board POWER PCB FRONT...

Page 49: ...48 Printed Circuit Board POWER PCB REAR...

Page 50: ...49 Printed Circuit Board MANI PCB FRONT...

Page 51: ...50 Printed Circuit Board MANI PCB REAR...

Page 52: ...51 Printed Circuit Board UNION PCB FRONT UNION PCB REAR...

Page 53: ...52 10 Schematic Diagram...

Page 54: ...53 Schematic Diagram...

Page 55: ...54 Schematic Diagram...

Page 56: ...55 Schematic Diagram...

Page 57: ...56 Schematic Diagram...

Page 58: ...57 Schematic Diagram...

Page 59: ...Schematic Diagram 58...

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