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PCBs (manufactured) using lead free solder will have a PbF printing on the PCB.

(Please refer to figures.)

Caution:

Pb free solder has a higher melting point than standard solder;

Typically the melting point is 86°F~104°F(30°C~40°C) higher.

Please use a soldering iron with temperature control and adjust it to 650°F ± 20°F (350°C ± 10°C).

In case of using high temperature soldering iron, please be careful not to heat too long.

Pb free solder will tend to splash when heated too high (about 1100°F/ 600°C).

All products with the printed circuit board with PbF printing must be serviced with lead free solder.

When soldering or unsoldering, completely remove all of the solder from the pins or solder area,

and be sure to heat the soldering points with the lead free solder until it melts sufficiently.

Distinction of PbF PCB:

Recommendations

Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.

ABOUT LEAD FREE SOLDER (PbF)


A1-2

Содержание DT1900-P-A

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

Страница 2: ...cuit diagram or the table of parts as a mark the designated parts must be used PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING 4 There are parts which use the insulation materi...

Страница 3: ...ure soldering iron please be careful not to heat too long Pb free solder will tend to splash when heated too high about 1100 F 600 C All products with the printed circuit board with PbF printing must...

Страница 4: ...TS GENERAL SPECIFICATIONS 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 ELE...

Страница 5: ...n at AC 73 W at AC 120 V 60 Hz Stand by at AC 3 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 Regulation Safety UL CSA Radiation FCC...

Страница 6: ...Voltage D C 3V UM size 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 Ca...

Страница 7: ...g Sheet No Circuit Diagram No Antenna Change Plug No Service Facility List 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 Bran...

Страница 8: ...17 0 kg 37 4lbs Gross Approx 21 3kg 46 9lbs G 16 Carton Master Carton No Content Sets Material Dimensions W x D x H mm x x Description of Origin No Gift Box Material Double Full Color Dimensions W x...

Страница 9: ...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...

Страница 10: ...the IC leads using a blower type IC desoldering machine Refer to Fig 2 2 2 Fig 2 2 NOTE Do not rotate or move the IC back and forth until IC can move back and forth easily after desoldering the leads...

Страница 11: ...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...

Страница 12: ...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 repair is undertaken where it has been required to change the MEMOR...

Страница 13: ...tings R DRV 10 B DRV 10 R BIAS 64 G BIAS 64 B BIAS 64 BRI CENT 115 CONT MAX 65 Place the set in Aging Test for more than 15 minutes Activate the adjustment mode display of Fig 1 1 and press the channe...

Страница 14: ...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...

Страница 15: ...roadcast and check if the picture is normal Press the TV VIDEO button on the remote control to set to the AV mode Then perform the above adjustment 1 3 NO 04 14 15 16 18 20 21 23 24 28 RF 04 150 50 34...

Страница 16: ...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...

Страница 17: ...CP803B CP802B FB401 TU001 CP601 J704 CP803A TP001 CP802A J701 J702 J703 S501B S501A AC IN CRT DY CP401 MAIN PCB CP502 L503 DEGAUSS COIL CRT PCB CD803 CD802 CD2001 CP101 OPERATION PCB J1151 S1152 S1153...

Страница 18: ...T 6 V RAMP 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 4 P FAIL AC IN F501 9 6 T502 L50...

Страница 19: ...10 W020 W040 W024 W046 CC001 W055 CF001 S1150 S1151 S1152 S1153 SW2001 OS2001 SW2005 SW2002 SW2003 SW2004 SW2006 SW2007 C2001 R2009 R2008 J801 CP803B CP806 CP802B R811 CP801_1 TP023 TP022 TP024 C819 D...

Страница 20: ...R813 R816 R103 R104 R124 R102 R122 R121 R120 R123 R152 R118 R131 R151 R153 R116 R132 R105 R106 R150 R133 R1005 R140 R147 R148 R135 R130 R136 R139 R138 R134 R129 R149 R127 R125 R711 R633 R638 R642 R62...

Страница 21: ...EIC W814 TP001 L001 47uH 0305 L101 3 3uH SW2001 EVQ21505R POWER SW2007 EVQ21505R LINE SW2006 EVQ21505R CH UP SW2003 EVQ21505R MENU SW2002 EVQ21505R VOL DOWN SW2005 EVQ21505R VOL UP SW2004 EVQ21505R C...

Страница 22: ...S 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 THESE PARTS MARKED BY CAUTI...

Страница 23: ...DITION AND PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART WAS MEASURED C501 0 0015 B C502 0 001 500V B C505 0 33 275V ECQUL C506 0 0047 250V KX C50...

Страница 24: ...W R410 390 1 2W R415 6 8K 1 2W R416 1 1 2W R446 470 1 2W R423 100 1 4W R427 100 1 4W R407 1 8 1 2W R403 22K 1 4W R445 180K 1 4W R418 33K R417 15K R816 330 R419 560 R806 2 7K 1 4W R814 4 7K 1 4W R802 2...

Страница 25: ...R703 2 2K R702 47K R707 47K R704 47K R706 47K R709 820 R705 2 2K R1010 220K R1006 47K R1004 47K R1011 220K R708 820 R1008 47 1 2W R711 150 R1005 270K OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE N...

Страница 26: ...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...

Страница 27: ...number in the schematic diagram 0 5V 1ms div 24 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 200mV 500 s div 28 2...

Страница 28: ...A 102 206 112 112 112 113 113 113 117 117 112 113 PCB110 CRT PCB ASS Y 206 206 L503 103 206 113 112 110 205 PCB260B FRONT JACK PCB ASS Y 111 116 115 PCB260A FRONT JACK PCB ASS Y 202 101J 202 101K PCB2...

Страница 29: ...T000 HOLDER ANODE WIRE 115 704WPA0049 LEG PRINCESS L 116 704WPA0050 LEG PRINCESS R 117 8994201000 HOLDER CRT WIRE 118 726000A078 SHEET CRT SERVICEMAN 119 7A701A246A SPEAKER CABI ASS Y 119A 702WPBA199...

Страница 30: ...V L101 021LA63R3K COIL 3 3 UH C819 C0JBB0713K CC 0 001 UF 2KV B L501 029X000416 COIL LINE FILTER SS24H 10100 DIODES L503 028R200037 COIL DEGAUSS 8R200037 D001 D9WU03302B DIODE ZENER MTZJ33B EIC L601 0...

Страница 31: ...U005049 WIRE HOLDER B2013H02 5P CP803A 067U004029 WIRE HOLDER B2013H02 4P CP803B 067U004029 WIRE HOLDER B2013H02 4P F501 081PC04005 FUSE 51MS040L FB401 043219026Y TRANSFORMER FLYBACK BSC23 N0188 FH501...

Страница 32: ...M3X4 02Q SPEC NO O R NO K633037...

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