Daewoo DSJ-4720CRU, Service Manual

Page 1: ...mance without notice in the parts list So if you need the latest parts information please refer to PPL Parts Price List in Service Information Center http svc dwe co kr DAEWOO ELECTRONICS Corp Service...

Page 2: ...list 36 8 Schematic Diagram 1 Block Diagram 51 2 Power 52 3 Convergence Amp 53 4 Convergence Module 54 5 CRT Amp 55 6 IF Module 56 7 AV Main 57 8 Micom Module 58 9 Control Union 59 9 PRINTED CIRCUIT...

Page 3: ...of this manual when a part needs to be replaced Because some electronic parts and appliances have safety related features an electric shock file or X RAY radiation can be caused if no equal rated par...

Page 4: ...gh voltage cable 1 How to remove a high voltage cable a Make a discharger to discharge a high voltage b Remove the power cord and wait for 30 sec c Remove the anode cable after discharging as the meth...

Page 5: ...nnel Cable Band S1 S3 S1 S20 UHF Hyper Band S21 S41 Band IV V CH21 CH69 Screen Size 119cm 47 Signal Method PAL B G I I SECAM B G D K L L Speaker Output 10W ch Main L R Power 220 240V 50 60Hz Power Con...

Page 6: ...ch time the button is pressed it rotates from Normal News Music Movie Favorite Still Menu Use it to make picture adjustment screen format sound adjustment function install Zoom Off Zoom1 Zoom2 Program...

Page 7: ...fer to Figure 1 2 Adjust the slant and position of DY so that the rectangle projections of DY are shown in front of the set Figure 1 Front part of CRT assembly Step 2 Fixation of VM coil 1 Tighten the...

Page 8: ...al line appears and fix it when the line disappears completely 3 Control Red VR Green VR and Blue VR in the order 4 Fix the VR by lock paint after the control is completed Note This control should be...

Page 9: ...een Note 2 Perform the focus readjustment or correction if the entire screen isn t focused even after the completion of focus control 3 Project R G B signal only by one color using a lens cover and co...

Page 10: ...e center of R and B to the horizon of G 5 In the center of screen locate the vertical line of R approx 20 to 30mm to the left on the basis of G and the vertical line of G approx 20 to 30mm to the righ...

Page 11: ...trol PC 5 When OSD of OK appears on the monitor of control PC the control is completed Measuring unit Multimedia Display Tester 3298 YOKOGAYA Measuring signal White Balance Control Pattern Intra offic...

Page 12: ...rightness control mode Screen mode Standard 1 Receive RETMA pattern intra office signal cable broadcasting 96 CH 2 Press the S8 key 3 Control the Sub Brightness so that 18 gradation can be identified...

Page 13: ...Pin Connections and Short Descriptions for VSPB For VSP 941x 4x the pin connections differ for pins 1 2 3 75 76 77 78 79 80 see Section 5 1 2 on page 210 5 1 1 Common Pin Connections and Short Descrip...

Page 14: ...13 IC Description...

Page 15: ...14 IC Description...

Page 16: ...15 IC Description...

Page 17: ...16 IC Description...

Page 18: ...17 IC Description 5 1 2 Differing Pin Connections and Short Descriptions for VSP 941xB and VSP 944xB...

Page 19: ...18 IC Description 5 2 Pin Circuits VSP94X5B VSP94X7B...

Page 20: ...19 IC Description 5 3 Application Circuit 5 3 1 Application Example for QFP80 package...

Page 21: ...20 IC Description 5 4 Pin Description CXA2150AQ...

Page 22: ...21 IC Description...

Page 23: ...22 IC Description...

Page 24: ...23 IC Description...

Page 25: ...24 IC Description...

Page 26: ...25 IC Description...

Page 27: ...26 IC Description...

Page 28: ...27 IC Description...

Page 29: ...28 IC Description...

Page 30: ...29 IC Description...

Page 31: ...A13 RA15 RA16 RA10 RA11 Check C120 C122 LA18 LA19 CCA18 CCA19 RA34 RA35 RA2 RA3 Check C106 C107 LA14 LA15 CCA14 CCA15 RA12 RA5 RA27 RA28 Check C125 C127 Z120 Z121 RC134 RC135 RC136 RC137 Check C107 C1...

Page 32: ...l in Q422 base Check H drive signal input in Q430 base Check H driver B voltage in T802 5 Check IIC bus communication between main assy and ICM2 Check ICM2 40 H drive output 5Vp p 0 7Vp p 12Vp p 2Vp p...

Page 33: ...been destroyed Replace the TR Check R445 Check F401 High Voltage Generator font Check F401 7 OVP high voltage control oscillating waveform Check R447 Replace I421 No No Yes Q891 Base 0V Horizontal Def...

Page 34: ...01 4 vertical SAW waveform Check I301 5 voltage waveform Check I301 2 vertical deflection waveform Check ICM2 Check vertical B 15V 15V I301 6 I301 1 Check R442 R417 D441 R416 R451 D440 END 50Hz 60Hz 6...

Page 35: ...nd by power IS802 Stand by power LED isn t red NO YES YES YES Check IS801 1 DC 7 10V Replace IS801 NO NO Check IS801 1 0V Check DS810 0V Check RS801 is open Replace DS810 YES Check F801 Replace FUSE Y...

Page 36: ...Check I804 is high NO Check Stand by circuit Replace QS802 Replace I804 or check DS815 NO Check I801 3 DC 20V Check QS801 DS807 works nomally Check QS801 DS807 works nomally NO Check 2nd power ass y Y...

Page 37: ...RNER PET 50X30XT0 25 WH M561 4855624200 MARK BRAND AL T1 0 DIA CUTTING LOC PARTCODE PARTNAME DESCRIPTION REMARK ZZ210 PTEGPWG041 ENGINE AS DSJ 4710CRU M961 485961064R PRT P16LSG03RJA M962 485961064G P...

Page 38: ...CHIP CERA 50V CH 100PF J 1608 CC182 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 CC183 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 CC184 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 CC185 HCBK152KBA...

Page 39: ...ERA Y5V 16V 0 47MF Z 1608 CCM52 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CCM53 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CCM54 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CCM55 HCBH224KBA C CHIP...

Page 40: ...J 1608 RCM43 HRFT000JBA R CHIP 1 10 0 OHM J 1608 LOC PARTCODE PARTNAME DESCRIPTION REMARK RCM44 HRFT000JBA R CHIP 1 10 0 OHM J 1608 RCM45 HRFT102JBA R CHIP 1 10 1K OHM J 1608 RCM47 HRFT100JBA R CHIP 1...

Page 41: ...9V C ELECTRO 50V RSS 4 7MF 5X11 TP C608 CEXD1E100F C ELECTRO 25V RND 10MF 5X11 TP C609 CEXD1E100F C ELECTRO 25V RND 10MF 5X11 TP C610 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C650 CEXF1E221V C ELECTR...

Page 42: ...CERA 50V X7R 6800PF K 1608 CC666 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CCA10 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 LOC PARTCODE PARTNAME DESCRIPTION REMARK CCA11 HCBK103KBA C CHIP CERA 5...

Page 43: ...1 00001 1STK392 IC STK392 020 0000A 4957002001 HEAT SINK AL EX 0000B 7174301411 SCREW TAPPTITE TT2 RND 3X14 MFZN IA905 PTBASW2001 HEAT SINK ASS Y 1STK392 7174301411 LOC PARTCODE PARTNAME DESCRIPTION R...

Page 44: ...CERA 50V B 100PF K AXIAL CA156 CCZB1H101K C CERA 50V B 100PF K AXIAL DF419 DRGP15J DIODE RGP15J DO 204AC 600V 1 5A JA115 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JA116 85801065GY WIRE COPPER AW...

Page 45: ...B0214 D2 3 DY PIN PB905 4857417500 TERM PIN DA IB0214 D2 3 DY PIN PB906 4857417500 TERM PIN DA IB0214 D2 3 DY PIN LOC PARTCODE PARTNAME DESCRIPTION REMARK PB907 4857417500 TERM PIN DA IB0214 D2 3 DY P...

Page 46: ...J LOC PARTCODE PARTNAME DESCRIPTION REMARK R985 RD AZ303J R CARBON FILM 1 6 30K OHM J R986 RD AZ303J R CARBON FILM 1 6 30K OHM J R987 RD AZ224J R CARBON FILM 1 6 220K OHM J R988 RD AZ224J R CARBON FI...

Page 47: ...7R 0 01MF K 1608 CC558 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CC559 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 CC560 HCQK100JBA C CHIP CERA 50V CH 10PF J 1608 CC561 HCBK122KBA C CHIP CERA 50V X7...

Page 48: ...5 DDTV1500MD DIODE DTV1500MD TO 220AC D475 PTB3SW2000 HEAT SINK ASS Y DFMP3FU 7174300811 00001 DFMP3FU DIODE FMP3FU 0000A 4857032000 HEAT SINK AL PR T1 LOC PARTCODE PARTNAME DESCRIPTION REMARK 0000B 7...

Page 49: ...41 4856310300 EYE LET BSR T0 2 R1 6 E42 4856310300 EYE LET BSR T0 2 R1 6 E43 4856310300 EYE LET BSR T0 2 R1 6 E44 4856310300 EYE LET BSR T0 2 R1 6 E45 4856310300 EYE LET BSR T0 2 R1 6 E46 4856310300 E...

Page 50: ...MALL R432 RN02B101JS R METAL FILM 2W 100 OHM J SMALL R437 RN02B189JS R METAL FILM 2W 1 8 OHM J SMALL LOC PARTCODE PARTNAME DESCRIPTION REMARK R439 RN02B753JS R METAL FILM 2W 75K OHM J SMALL R440 RN02B...

Page 51: ...10 RD AZ432J R CARBON FILM 1 6 4 3K OHM J R411 RD 4Z272J R CARBON FILM 1 4 2 7K OHM J R412 RD 4Z152J R CARBON FILM 1 4 1 5K OHM J R414 RD 4Z202J R CARBON FILM 1 4 2K OHM J R415 RD 4Z103J R CARBON FILM...

Page 52: ...51 8 Schematic Diagram 1 Block Diagram...

Page 53: ...52 Schematic Diagram 2 Power...

Page 54: ...53 Schematic Diagram 3 Convergence AMP...

Page 55: ...54 Schematic Diagram 4 Convergence Module...

Page 56: ...55 5 CRT Amp Schematic Diagram...

Page 57: ...56 6 IF Module Schematic Diagram...

Page 58: ...57 7 AV Main Schematic Diagram...

Page 59: ...58 8 Micom Module Schematic Diagram...

Page 60: ...59 9 Control Union Schematic Diagram...

Page 61: ...60 1 Main PCB 9 PRINTED CIRCUIT BOARD...

Page 62: ...61 2 Power PCB PRINTED CIRCUIT BOARD...

Page 63: ...62 3 Convergence Module PCB PRINTED CIRCUIT BOARD...

Page 64: ...63 4 IF Module PCB PRINTED CIRCUIT BOARD...

Page 65: ...64 5 CRT PCB PRINTED CIRCUIT BOARD...

Page 66: ...65 6 UNION PCB PRINTED CIRCUIT BOARD...

Page 67: ...66 1 DSJ 4710CRU 10 EXPLODED VIEW...

Page 68: ...67 2 DSJ 4720CRU EXPLODED VIEW...

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