Durabrand DBTV1901 Service Manual Download Page 35 | Manualshive

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RISK

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IC199

X602

SW101

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FH501

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CP502

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COL

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R808

C614

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PRINTED CIRCUIT BOARDS

MAIN/CRT (INSERTED PARTS)

SOLDER SIDE

F-1

F-2

CP806_1

TP023

TP022

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Summary of Contents for DBTV1901

Page 1: ...SERVICE MANUAL COLOR TELEVISION RECEIVER ORIGINAL MFR S VERSION A DBTV1901 Design and specifications are subject to change without notice...

Page 2: ...SERVICE MANUAL REVISION 1 MFR S VERSION C Please file this revision with the original version COLOR TELEVISION RECEIVER DBTV1901 C A MFR S VERSION PCB010 PCB110 TMX494A TMX494B TCX352A TCX352B...

Page 3: ...SION A TMX494A A3J907A010 MAIN PCB ASS Y VERSION C TMX494B PCB110 A3J907A11A CRT PCB ASS Y VERSION A TCX352A A3J907A110 CRT PCB ASS Y VERSION C TCX352B MAIN PCB s and CRT PCB s are not interchangeable...

Page 4: ...IC401 ADD R416 C422 DEFLECTION CRT SCHEMATIC DIAGRAM MAIN PCB VERSION C...

Page 5: ...M3J9 07A W163007 SPEC NO O R NO...

Page 6: ...5 L101 3 3uH SW101 SKHVBED010 CH UP SW102 SKHVBED010 CH DOWN SW103 SKHVBED010 VOL UP SW104 SKHVBED010 VOL DOWN SW105 SKHVBED010 POWER TU001 ENV56DB6G3 1 10 11 12 13 14 15 2 3 4 5 6 7 8 9 C118 330 6 3V...

Page 7: ...ENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE ETANT LES PIECES REPAREES PAR UN ATTENTION DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY USE ONES ARE SINCE T...

Page 8: ...6 2W R542 0 47 1W R508 220 1W THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL NOTE C505 0 1 275V PHE840...

Page 9: ...4 7K R419 560 R815 330 R813 330 R421 100K 1 4W R445 120K 1 4W R806 2 7K 1 4W R410 330 1 2W R415 1 8K 1 2W R416 1 1 2W R816 330 R413 2 2K 1 2W R403 22K 1 4W R427 100 1 4W R422 1 8 1 2W R417 12K 1 4W R4...

Page 10: ...BJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE ETANT LES PIECES...

Page 11: ...200mV 20 s div 7 9 200mV 20 s div CHROMA 0 5V 5ms div 10 11 1V 20 s div 12 1V 20 s div 1V 20 s div 13 8 20V 20 s div 3 200mV 20 s div DEFLECTION CRT 14 0 5V 5ms div 15 20V 20 s div H 1 NOTE The follow...

Page 12: ...s div SOUND AV 0 5V 1ms div 23 10V 5ms div 18 10V 5ms div 19 1V 1ms div 24 50V 20 s div 20 NOTE The following waveforms were measured at the point of the corresponding balloon number in the schematic...

Page 13: ...MECHANICAL EXPLODED VIEW I 1 107 108 202 202 202 202 202 103 SP1001 105 104 203 110 111 101 201 201 201 201 L503 106 J801 PCB110 CRT PCB V801 102 109 FB401 204 PCB010 MAIN PCB 205 204 TU001...

Page 14: ...1119 SHEET CSA WARNING 110 7220001107 SHEET HWC 111 7230006818 SHEET CAUTION 201 8121F50B84 SCREW TAPPING BO FAI20 FLAT 5x28 202 8117540A64 SCREW TAPPING B0 TRUSS 4x16 203 8110630A04 SCREW TAP TITE P...

Page 15: ...000 UF 16V L607 021LA6150K COIL 15 UH C517 C0PLRR7Q2K CC 470 PF 2KV RR or T401 045009003J TRANS HORIZONTAL DRIVE ETH09K14BZ C01BBP7Q2K CC 470 PF 2KV BP or T502 048129092S TRANSFORMER SWITCHING 8129092...

Page 16: ...H501 DF20A3R0Q0 DEGAUSS ELEMENT PTDAA1BF3R0Q100 TM101 076N0DW010 TRANSMITTER RC DW010 TU001 0145100059 TUNER VHF UHF ENV56DB6G3 V801 098Y200480 COLOR PICTURE TUBE W DY A48LGS30X19N45 X602 100CT3R505 C...

Page 17: ...M3L2 11C O R NO SPEC NO W223003...

Page 18: ...SERVICE MANUAL DBTV1901 Series B Design and specifications are subject to change without notice COLOR TELEVISION RECEIVER ORIGINAL MFR S VERSION B...

Page 19: ...f the SERIAL NUMBER 2 PART NO and DESCRIPTION You can find it in your SERVICE MANUAL HOW TO ORDER PARTS PERFORM A SAFETY CHECK AFTER SERVICING 7 Confirm that the screws parts and wiring which were rem...

Page 20: ...S USED WHEN REPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTMENTS BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON TUNER CHROMA POWER DEFLECTION CRT SOUND AV WAVEFORMS MECHANICAL EXP...

Page 21: ...set CH No Stereo Dual TV Sound No Tuner Sound Muting Yes G 3 Power Power Source AC 120V AC 60Hz DC Power Consumption at AC 73 W at AC 120 V 60 Hz Stand by at AC 5 W at AC 120 V 60 Hz Per Year kWh Year...

Page 22: ...Off Tim No Wake Up Timer No Timer Back up at Power Off Mode more than Min Sec G 10 Remote Unit RC DW Control Glow in Dark Remocon No Format NEC Custom Code 86 05 h Power Source Voltage D C 3V UM size...

Page 23: ...remiere No Comb Filter No Lines Auto CH Memory Yes Hotel Lock No Closed Caption Yes Stable Sound No Energy Star No Favorite CH No G 12 Accessories Owner s Manual Language English French w Guarantee Ca...

Page 24: ...put Rear2 No Video Output No Audio Output No Euro Scart No Color Stream No Diversity No Ext Speaker No DC Jack 12V Center No VHF UHF Antenna Input F Type AC Outlet No G 14 Set Size Approx W x D x H mm...

Page 25: ...p up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 1 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT...

Page 26: ...sing a blower type IC desoldering machine Refer to Fig 2 2 2 Fig 2 2 NOTE Do not add the rotating and the back and forth directions force on the IC until IC can move back and forth easily after desold...

Page 27: ...8 Thin tip Soldering Iron NOTE When the IC leads are bent during soldering and or repairing do not repair the bending of leads If the bending of leads are repaired the pattern may be damaged So be al...

Page 28: ...After the confirmation of using hours turn off the power INIT 00 83 0010 CRTON ADDRESS DATA FIG 1 Initial setting content of MEMORY IC POWER ON total hours 16 x 16 x 16 x thousands digit value 16 x 16...

Page 29: ...l to select the options shown in Fig 1 2 Press the MENU button on the remote control to end the adjustments 2 3 Prepare the following measurement tools for electrical adjustments FUNCTION OSD H CUT OF...

Page 30: ...control until the contrast step No becomes 66 Press the TV AV button on the remote to set to the AV mode Then perform the above adjustment 2 3 1 2 3 4 2 11 SUB CONTRAST MANUAL Receive an 70dB monosco...

Page 31: ...referring below NO 04 14 15 16 18 20 21 23 24 25 26 27 28 29 FUNCTION H VCO BRIGHT MAX BRIGHT MIN CONT CENT CONT MIN COLOR MAX COLOR MIN SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO T...

Page 32: ...color bar generator from the green raster pattern to the crosshatch pattern Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets...

Page 33: ...MENT PARTS LOCATION GUIDE WIRING CONNECTION TU001 FB401 S501B S501A AC IN CP601 CP502 T502 CD101B CD101A W043 CRT CP401 SPEAKER TP023 TP022 R807 R803 J801 CP806_1 C P 8 0 1 _ 1 CP802B C P 8 0 2 A C D...

Page 34: ...NT H OUT X TAL RF AGC OUT VIF IN 1 VIF IN 2 V PULSE OUT SCL SDA MCU RESET KEY2 7 SDA SCL 19 INV FBP OUT 38 H SYNC 24 33 BLANK FAST BLK 21 B IN 36 BLUE B 22 35 GREEN G G IN 23 R IN 34 RED R 26 CVIN 31...

Page 35: ...601 D602 W017 C625 Q603 C638 W818 W018 W019 C635 R635 C612 D610 D611 D612 W022 R614 C603 Q610 Q609 R627 R631 R630 R629 W023 W024 W025 R606 W026 D605 W027 C519 W030 W031 CP802B C P 8 0 1 _ 1 Q803_1 Q80...

Page 36: ...R123 R103 R121 R120 R106 R105 R130 C121 C138 R134 R601 R602 R609 R622 R615 C655 R628 R639 R632 R633 R646 R642 C140_1 R619 R605 R617 R141 R142 R811 R809 R814 R815 R813 R816 R129 R638 R626 R1001 R133 R6...

Page 37: ...H UP SW102 SKHVBED010 CH DOWN SW103 SKHVBED010 VOL UP SW104 SKHVBED010 VOL DOWN SW105 SKHVBED010 POWER TU001 ENV56D66G3 1 10 11 12 13 14 15 2 3 4 5 6 7 8 9 C118 470 6 3V YK IC199 S 24C02BDP 1A MEMORY...

Page 38: ...ITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE ETANT LES PIECES REPAREES PAR UN...

Page 39: ...TH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL NOTE C514_1 680P 2KV YR C503 0 001 500V B C502 0 001 500V B C517_2 470P 2KV YR C505 0 1 250V ECQUL C...

Page 40: ...21_1 100K 1 2W R404_1 68 1 4W R402 6 8 1 2W R446 4 7K 1 2W R419 470 R423 6 8K R814 330 R811 330 R809 330 R802_1 2 7K 1 4W R804 2 7K 1 4W R815 4 7K R813 4 7K R414 100 1 4W R420 3 3K R445 120K 1 4W R806...

Page 41: ...HANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DANS LA NOMENCLATURE DES PIECES N UTILISER QUE CELLS DECRITES DANGEREUSES AN POINT DE VUE SECURITE ETANT LES PIECES REPAREES...

Page 42: ...200mV 20 s div 7 9 200mV 20 s div CHROMA 0 5V 5ms div 10 11 1V 20 s div 12 1V 20 s div 1V 20 s div 13 8 20V 20 s div 3 200mV 20 s div DEFLECTION CRT 14 0 5V 5ms div 15 20V 20 s div H 1 NOTE The follow...

Page 43: ...s div SOUND AV 0 5V 1ms div 23 10V 5ms div 18 10V 5ms div 19 1V 1ms div 24 50V 20 s div 20 NOTE The following waveforms were measured at the point of the corresponding balloon number in the schematic...

Page 44: ...MECHANICAL EXPLODED VIEW I 1 101 105 106 203 SP351 107 108 203 109 110 202 202 202 202 202 113 111 201 201 201 201 L503 V801 102 J801 PCB110 CRT PCB 112 104 103 204 FB401 PCB010 MAIN PCB TU001 204 204...

Page 45: ...9 702WPA0557 CABINET BACK 110 722552A007 SHEET RATING 111 723000B325 FILM DECORATION 112 7230006818 SHEET CAUTION 113 726000A019 SHEET CRT SERVICEMAN 201 8121F50B84 SCREW TAPPING B0 GW20 FLAT 5x28 202...

Page 46: ...82H CMPP 0 0068UF 1 25KV TC5T021204 TRANSISTOR SILICON 2SC2120Y TPE2 C446 E02LT5220M CE 22 UF 50V Q606 TCAT032034 TRANSISTOR SILICON KTC3203_Y AT or C448 E5EZTC220M CE 22 UF 200V TC5T021204 TRANSISTOR...

Page 47: ...BACK 3220052F FH501 06710T0006 HOLDER FUSE EYF 52BC FH502 06710T0006 HOLDER FUSE EYF 52BC OS101 077Q014003 REMOTE RECEIVER PIC 28143SY 2 SP351 070Y132018 SPEAKER S08F21 TH501 DF5EL3R0A0 DEGAUSS ELEMEN...

Page 48: ...M3J9 07A SPEC NO O R NO W133021...

Page 49: ...ock while the electric current is flowing 3 USE THE DESIGNATED PARTS The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety Therefore the part wh...

Page 50: ...L ADJUSTMENTS MAJOR COMPONENTS LOCATION GUIDE BLOCK DIAGRAM PRINTED CIRCUIT BOARDS MAIN CRT SCHEMATIC DIAGRAMS MICON TUNER CHROMA TV POWER DEFLECTION CRT SOUND AV WAVEFORMS MECHANICAL EXPLODED VIEW ME...

Page 51: ...AC 73 W at AC 120 V 60 Hz Stand by at AC 5 W at AC 120 V 60 Hz Per Year kWh Year Protector Power Fuse Yes G 4 Regulation Safety UL CSA Radiation FCC DOC X Radiation DHHS HWC G 5 Temperature Operation...

Page 52: ...h Power Source Voltage D C 3V UM size x pcs UM 4 x 2 pcs Total Keys 27 Keys Keys Power Yes 1 Yes 2 Yes 3 Yes 4 Yes 5 Yes 6 Yes 7 Yes 8 Yes 9 Yes 0 Yes 100 No CH Up Yes CH Down Yes Volume Up Yes Volume...

Page 53: ...Lock No Closed Caption Yes Stable Sound No Favorite CH No G 12 Accessories Owner s Manual Language English French w Guarantee Card Yes Remote Control Unit Yes Rod Antenna No Poles Terminal Loop Antenn...

Page 54: ...Video Output No Audio Output No Euro Scart No Color Stream No Diversity No Ext Speaker No DC Jack 12V Center No VHF UHF Antenna Input F Type AC Outlet No G 14 Set Size Approx W x D x H mm 488 x 465 x...

Page 55: ...ip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 1 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CR...

Page 56: ...83 0010 CRTON ADDRESS DATA FIG 1 Initial setting content of MEMORY IC POWER ON total hours 16 x 16 x 16 x thousands digit value 16 x 16 x hundreds digit value 16 x tens digit value ones digit value N...

Page 57: ...until the digital voltmeter is 2 15 0 05V 1 2 3 4 5 BEFORE MAKING ELECTRICAL ADJUSTMENTS 2 2 CUT OFF 1 2 3 4 Adjust the unit to the following settings R DRIVE 10 B DRIVE 10 R BIAS 64 G BIAS 64 B BIAS...

Page 58: ...HASE Press the VOL UP DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum 2 7 VERTICAL SIZE NOTE Adjust after performing adjustments in sectio...

Page 59: ...color bar generator from the green raster pattern to the crosshatch pattern Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets C...

Page 60: ...MAJOR COMPONENTS LOCATION GUIDE D3 1 MAIN PCB FOCUS VOLUME SCREEN VOLUME FB401 CP601 TU001 CRT PCB J801 TP023 TP022 R606...

Page 61: ...6 5 MEMORY IC IC199 S 24C02BDP 1A 2 5 10 17 UNREG 12V 7 3 8 7V REG OUT R OUT G OUT B OUT START UP VCC H OUT X TAL RF AGC OUT VIF IN 1 VIF IN 2 V PULSE OUT SCL SDA MCU RESET V OUT AD6 KEY2 26 3 SDA SC...

Page 62: ...AFC GND ABL 180V 8V 12V 25V B COL W049 D602 D601 C647 W831 W803 C519_1 C642 W051 W052 D518 W053 R 6 2 9 W054 W058 W061 W062 CP802B L801_1 CP801_1 R8 05 R807 Q803_1 Q801_1 Q802_1 J 8 0 1 _ 1 R804 R802...

Page 63: ...34 R615 R622 R635 R639 R633 R114 R625 R103 C626 R603 R602 R128 R101 R126 R406 R419 R420 R354 R359 R111 R636 R702 R353 R628 R512 R519 R513 R632 C805_1 R811 C804_1 R809 C806_1 R814 R813 R815 R816 R357 R...

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