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SERVICE MANUAL

DT1900-C

Design and specifications are subject to change without notice.

COLOR TELEVISION RECEIVER

ORIGINAL

MFR'S VERSION A

Summary of Contents for DT1900-C

Page 1: ...SERVICE MANUAL DT1900 C Design and specifications are subject to change without notice COLOR TELEVISION RECEIVER ORIGINAL MFR S VERSION A...

Page 2: ...is replaced should be used the part which has the same character Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark the designate...

Page 3: ...FICATIONS DISASSEMBLY INSTRUCTIONS 1 REMOVAL OF ANODE CAP 2 REMOVAL AND INSTALLATION OF FLAT PACKAGE IC SERVICE MODE LIST CONFIRMATION OF HOURS USED WHEN REPLACING EEPROM MEMORY IC ELECTRICAL ADJUSTME...

Page 4: ...e 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 Protector Power Fuse Yes Safety Circuit Yes IC Protector Micro Fuse No G 4 Re...

Page 5: ...e x pcs UM 4 x 2 pcs Total Keys 23 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 Down Yes TV Caption Text Yes CH1 CH...

Page 6: ...t No Important Safeguard No Dew AHC Caution Sheet No AC Plug Adapter No Quick Set up Sheet No Battery No UM size x pcs OEM Brand No AC Cord No AV Cord 2Pin 1Pin No Registration Card No PTB Sheet No 30...

Page 7: ...Carton No Content Sets Material Dimensions W x D x H mm x x Description of Origin No Gift Box Yes Material Double Full Color Dimensions W x D x H mm 596 x 575 x 580 Design As per Buyer s Description o...

Page 8: ...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 9: ...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 10: ...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 11: ...al 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 ADDRESS DATA INIT 00 00 CRT ON 0010 WHEN REPLACING EEPROM MEMORY IC If a service rep...

Page 12: ...DRIVE 10 B DRIVE 10 R BIAS 64 G BIAS 64 B BIAS 64 BRI CENT 115 CONT MAX 65 Place the set with Aging Test for more than 15 minutes Activate the adjustment mode display of Fig 1 1 and press the channel...

Page 13: ...uantity of the OVER SCAN on right and left becomes minimum 2 8 VERTICAL SHIFT 1 2 3 Receive the monoscope pattern Activate the adjustment mode display of Fig 1 1 and press the channel button 07 on the...

Page 14: ...the picture is normal Press the TV VIDEO button on the remote control to set to the AV mode Activate the adjustment mode display of Fig 1 1 and press the channel button 17 on the remote control to se...

Page 15: ...the 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 magn...

Page 16: ...CP802B FB401 TU001 CP601 J704 CP803A TP001 CP802A J701 J702 J703 J1001 S501B S501A AC IN CRT DY CP401 MAIN PCB CP502 L503 DEGAUSS COIL CRT PCB CD803 CD802 CD2001 CP101 OPERATION PCB J1151 S1152 S1153...

Page 17: ...MP FEEDBACK MCU RESET 30 RESET 30 Y SW OUT 22 CVIN 31 REMOCON 15 OS2001 1 POWER LINE KEY1 8 CH UP VOL DOWN CH DOWN MENU VOL UP KEY2 9 X602 3 579545MHz 34 X TAL AC IN F501 9 6 T501 L503 DEGAUSS COIL TH...

Page 18: ...W048 C645 W059 L601 R613 C624 Q603 C601_1 CP802A W037 W034 W033 W036 Q606 W051 R145 R144 W049 IC101 W022 W061 Q610 W042 W038 W041 R604 W021 Q601 W003 CP101 W007 W008 W009 W005 W039 W029 W031 W025 W026...

Page 19: ...21 R120 R153 R151 R118 R152 R102 R103 R104 R124 R150 R116 R132 R105 R106 R149 C136 C139 C141 C101 R127 C119 C114 C113 R125 C138 R134 R129 C124 C102 C103 R138 C121 R130 R135 R136 R148 R147 R140 C140 R1...

Page 20: ...3uH L001 47uH 0305 SW2001 EVQ21505R POWER SW2007 EVQ21505R LINE SW2006 EVQ21505R CH UP SW2003 EVQ21505R MENU SW2002 EVQ21505R VOL DOWN SW2005 EVQ21505R VOL UP SW2004 EVQ21505R CH DOWN TU001 TECC1040P...

Page 21: ...OTE 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 LES PIECES REPAREES PAR UN ETANT ATTENTION SINCE...

Page 22: ...PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED C510 0 0039 B C514_1 0 001 2KV R C518 470P 500V B C503 0 001 500V B C506 0 0047 250V KX...

Page 23: ...W R446 470 1 2W R423 100 1 4W R804 2 7K 1 2W R422 1 8 1 2W R427 100 1 4W R403 22K 1 4W R448 680 1 2W R449 680 1 2W R816 330 R419 560 R806 2 7K 1 4W R813 330 R815 330 R811 4 7K 1 4W R809 4 7K 1 4W R814...

Page 24: ...0 R711 75 R1003 68K 1 4W R1001 47K R701 75 R704 47K R706 47K R705 820 R1010 220K R1006 47K R1005 270K R1004 47K R1011 220K R708 820 R1008 47 1 2W R714 100 R716 100 R717 100 OF PRINTING AND SUBJECT TO...

Page 25: ...d at the point of the corresponding balloon number in the schematic diagram CHROMA 1 1V 0 1 s div 200mV 20 s div 7 9 200mV 20 s div 0 5V 5ms div 10 8 20V 20 s div 11 1V 20 s div 12 1V 20 s div 1V 20 s...

Page 26: ...number in the schematic diagram 0 5V 1ms div 24 23 200mV 1ms div 10V 5ms div 19 200V 20 s div 17 50V 20 s div 20 22 50V 20 s div 21 50V 20 s div 25 200mV 1ms div 0 5V 1ms div 26 200mV 500 s div 27 200...

Page 27: ...1G 202 202 113 101 101A 202 202 101K 202 101J 120A 120B 120 SP1001 120D 202 202 120C 202 120E 205 120F 120F 205 109 106 119B 119A SP1002 119C 202 119 118 202 119D 119E 205 202 119F 119F 205 110 102D 2...

Page 28: ...CRT T 0 5 116 800WR0A011 SHEET CRT SUPPORT D 117 899HV3T000 HOLDER ANODE WIRE 118 A3R703QX30 SPEAKER CABI ASSY 119 7A701A274A SPEAKER CABI L ASS Y 119A 701WPAA632 CABINET FRONT SP L 119B 701WPAA633 RI...

Page 29: ...77 J801 066F120018 SOCKET CATHODE RAY TUBE ISMS01S D103 D97U05R61B DIODE ZENER MTZJ5 6B T 77 J1001 060J131016 HEADPHONE JACK MSJ 2000_AG D104 D97U05R61B DIODE ZENER MTZJ5 6B T 77 J1150 060J421037 RCA...

Page 30: ...REMOTE RECEIVER PIC 37143TH5 SP1001 070W132024 SPEAKER NP 300W L RCA 115 SP1002 070W132024 SPEAKER NP 300W L RCA 115 TH501 D8EE0B1400 DEGAUSS ELEMENT B59203 S1060 B14 TM101 076N0JK010 TRANSMITTER RC J...

Page 31: ...M3R7 03Q O R NO SPEC NO K483071...

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