Haier 21F7A-P Service Manual Download Page 1

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Colour Television

SERVICE MANUAL

Haier model:

21F7A-P

Customer model:MT2024

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Summary of Contents for 21F7A-P

Page 1: ...21 Colour Television SERVICE MANUAL Haier model 21F7A P Customer model MT2024 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint com cn ...

Page 2: ... 4 Service adjustment 5 5 ICs functional description 8 6 Test point waveform 10 7 All ICs voltages 10 8 Purity convergence adjustment 11 9 DVD maintenance 13 10 List of Parts 14 11 Exploded view Attached 12 Circulate diagram Attached PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint com cn ...

Page 3: ...drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button 8 When service is required observe the original lead dress Extra precaution should be given to assure correct lead dress in the ...

Page 4: ... 4 2 Block diagram TDA8377PS N2 series with mono intercarrier sound demodulator PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint com cn ...

Page 5: ...onding factory menus Press EXIT key to exit factory mode Focus adjustment 1 Receive a crosshatch signal 2 While watching the screen adjust the FOCUS VR on the FBT to make the vertical and horizontal lines as fine and sharp as possible Geometrical adjustment Receive PAL standard complete pattern signal Adjustment steps a Adjust VSL to the centre horizontal line just appears from half bottom shadow ...

Page 6: ...ness 0 A 0COL Listen Colour 50 A 0SHP Listen Sharpness 50 A 1CON Soft Contrast 45 A 1BRI Soft Brightness 45 A 1COL Soft Colour 50 A 1SHP Soft Sharpness 50 A 6 Picture preset 2 2CON Standard Contrast 75 A 2BRI Standard Brightness 50 A 2COL Standard Colour 50 A 2SHP Standard Sharpness 60 A 3CON Dynamic Contrast 85 A 3BRI Dynamic Brightness 60 A 3COL Dynamic Colour 60 A 3SHP Dynamic Sharpness 80 A NO...

Page 7: ...it 5 RESERVE 0 EA Bit 4 Soft program change 1 Enable 0 EA Bit 3 RESERVE 0 EA Bit 2 RESERVE 0 EA Bit 1 RESERVE 0 EA Bit 0 RESERVE 0 EA 5 OP5 Bit Function Description Preset Remark Bit 7 AUTO CHARACTER 1 Enable 1 EA Bit 6 FREQ 1 Enable 1 EA Bit 5 AV AUDIO TRACK 1 Enable 0 EA Bit 4 PAL 1 Enable 0 EA Bit 3 Portuguese 1 Enable 0 EA Bit 2 Spanish 1 Enable 1 EA Bit 1 French 1 Enable With DVD select 1 1 E...

Page 8: ...TUNER AGC 27 Tuner AGC output AUDEEM SIFIN1 1 28 Audio deemphasize or SIF input DECSDEM SIFIN2 29 Decoupling sound demodulator GND2 30 Ground 2 for TV processor SNDPLL SIFAGC 1 31 Narrow band PLL filter AVL 32 Automatic Volume Levelling HOUT 33 Horizontal output FBISO 34 Flyback input sandcastle output AUDEXT 35 External audio output EHTO 36 EHT over voltage protection input PLL IF 37 IF PLL loop ...

Page 9: ...Out 1 2 Ch 1 output In 2 8 Ch 2 input GND out 1 3 Ch 1Ground VOL 9 Volume Control Out 1 4 Ch 1 output Out 2 10 Ch 2 output Standby 5 Mute input GND out 2 11 Ch 2 Ground In 1 6 Ch 1 input Out 2 12 Ch 2 output 4 N301 Vertical output TDA8357A Symbol PIN Function Symbol PIN Function INV IN 1 Input PUMP UP 6 Pump up power INV IN 2 Input V OUT 7 Vertical output Vcc 3 Pump up power V PRO 8 Vertical prote...

Page 10: ...59 60 61 62 63 64 V 1 9 5 0 2 4 2 4 2 4 3 1 0 3 2 0 1 8 1 7 0 3 2 5 1 3 3 5 TDA8357 PIN 1 2 3 4 5 6 7 8 9 V 0 8 0 7 16 6 9 0 43 7 2 0 3 7 2 AN 7522N PIN 1 2 3 4 5 6 7 8 9 10 11 12 V 10 4 4 0 4 4 2 75 1 4 0 1 4 0 35 4 4 0 4 4 24C08 PCF8598 PIN 1 2 3 4 5 6 7 8 V 0 0 5 1 0 3 2 0 0 5 1 5Vpp 0 9Vpp 1 3Vpp H H 1Vpp V CRT KB CRT KG CRT KR 95Vpp 95Vpp 95Vpp H H H TDA8377 PIN53 2 5Vpp 2 5Vpp 3 8Vpp H H H T...

Page 11: ... Fig 3 8 Move the deflection yoke forward and fix the position of the deflection yoke so that the whole screen will become green 9 Insert the wedge to the top side of the deflection yoke so that it will not move 10 Input a crosshatch signal 11 Verify that the screen is horizontal 12 Input red and blue raster signals and make sure that purity is properly adjusted CRT WEDGE DEFLECTION YOKE P 4 6 P P...

Page 12: ...ERGENCE ADJUSTMENT 1 Move the deflection yoke up and down and overlap lines in the periphery Fig 2 2 Move the deflection yoke left to right and overlap the lines in the periphery Fig 3 3 Repeat 1 and 2 above and make the best convergence After adjustment fix the wedge at the original position Fasten the retainer screw of the deflection yoke Fix the 6 magnets with glue FRONT VIEW Fig 1 FRONT VIEW R...

Page 13: ...1 2W 1 5K J T 1 0094100736 R514 OXIDATION FILM RESISTOR RY15 1 2W 1 8KΩ J 10 D A 1 0094100736 R524 OXIDATION FILM RESISTOR RY15 1 2W 1 8KΩ J 10 D A 1 0094100736 R534 OXIDATION FILM RESISTOR RY15 1 2W 1 8KΩ J 10 D A 1 0094102587 R820 FUSIBLE RESISTOR RF10 2W 24Ω J 05 C 1 0094100125 R821 FUSIBLE RESISTOR RF10 2W 1Ω J 05 C 1 0094102583 R824 FUSIBLE RESISTOR RF10 1 2W 1 J 05 E A 1 0094102583 R415 FUSI...

Page 14: ...094400503 N702 I C HEF4053 1 0094400791 N808 I C MC7805CT 1 0094600198 X201 CRYTAL JA12D 12MHZ 20PF 1 0094600015 Z203 CERAMIC TRAP FILTER XT4 5B 1 0094600292 SF101 SAW FILTER D1510C 1 0094000137 F801 FUSE TSG 3 15A 250V 1 0090100021 F801A FUSE CLIP FC503 1 0090100021 F801B FUSE CLIP FC503 1 0094501053 L401 HORIZONTAL LINEARITY COIL LX034 1 0094500346 L801 POWER FILTER LCL 04 1 0094501339 T444 FBT ...

Page 15: ...RESISTOR RT13 1 6W 100 J T 1 0094100017 R235 CARBON FILM RESISTOR RT13 1 6W 100 J T 1 0094100017 R236 CARBON FILM RESISTOR RT13 1 6W 100 J T 1 0094100017 R237 CARBON FILM RESISTOR RT13 1 6W 100 J T 1 0094100017 R245 CARBON FILM RESISTOR RT13 1 6W 100 J T 1 0094100017 R252 CARBON FILM RESISTOR RT13 1 6W 100 J T 1 0094100017 R740 CARBON FILM RESISTOR RT13 1 6W 100 J T 1 0094100017 R741 CARBON FILM R...

Page 16: ...218 CARBON FILM RESISTOR RT13 1 6W 10K J T 1 0094100033 R279 CARBON FILM RESISTOR RT13 1 6W 10K J T 1 0094100033 R620 CARBON FILM RESISTOR RT13 1 6W 10K J T 1 0094100033 R622 CARBON FILM RESISTOR RT13 1 6W 10K J T 1 0094100033 R849 CARBON FILM RESISTOR RT13 1 6W 10K J T 1 0094100023 R238 CARBON FILM RESISTOR RT13 1 6W 1K J T 1 0094100073 R311 CARBON FILM RESISTOR RT13 1 6W 12K J T 1 0094100034 R21...

Page 17: ... K F05 1 0094200715 C249 CERAMIC CAPACITOR CC1 CH 63V 150PF J F05 1 0094202373 C232 CERAMIC CAPACITOR CC1 CH 63V 330PF J F05 1 0094200981 C231 CERAMIC CAPACITOR CT1 B 63V 1000pF K F05 1 0094200981 C234 CERAMIC CAPACITOR CT1 B 63V 1000pF K F05 1 0094200981 C110 CERAMIC CAPACITOR CT1 B 63V 1000pF K F05 1 0094201039 C221 CERAMIC CAPACITOR CT1 B 63V 4700PF K F05 1 0094201039 C603 CERAMIC CAPACITOR CT1...

Page 18: ...ELECTROLYSE CAPACITOR CD110X 50V 1μF M F05 1 0094200043 C750 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50V 1μF M F05 1 0094200043 C621 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50V 1μF M F05 1 0094200043 C740 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50V 1μF M F05 1 0094200044 C224 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50V 2 2μF M F05 1 0094200044 C258 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50V 2 2μF M F0...

Page 19: ...1H CARBON FILM RESISTOR RT13 1 6W 47 J T 1 0094100066 R502 CARBON FILM RESISTOR RT13 1 6W 47 J T 1 0094100066 R503 CARBON FILM RESISTOR RT13 1 6W 47 J T 1 0094100019 R512 CARBON FILM RESISTOR RT13 1 6W 220 J T 1 0094100019 R522 CARBON FILM RESISTOR RT13 1 6W 220 J T 1 0094100019 R532 CARBON FILM RESISTOR RT13 1 6W 220 J T 1 0094101370 R516 CARBON FILM RESISTOR RT13 1 6W 270 J T 1 0094101370 R526 C...

Page 20: ...V101 TRANSISTOR TRANSISTORBF370 1 0090100008 EY08 RIVET φ1 6 3 0 1 0090100008 EY09 RIVET φ1 6 3 0 1 0090100008 EY10 RIVET φ1 6 3 0 1 0090100008 EY11 RIVET φ1 6 3 0 1 0090100008 EY12 RIVET φ1 6 3 0 1 0090100008 EY13 RIVET φ1 6 3 0 1 0090100008 EY14 RIVET φ1 6 3 0 1 0090100008 EY15 RIVET φ1 6 3 0 1 0090100008 EY16 RIVET φ1 6 3 0 1 0090100008 EY17 RIVET φ1 6 3 0 1 0090100008 EY18 RIVET φ1 6 3 0 1 009...

Page 21: ... 5 1 0090100009 EL501 RIVET φ2 3 3 5 1 0090100009 EL502 RIVET φ2 3 3 5 1 0094101552 W217 WIRE φ0 58mm 5mm B 1 0094101553 R315 WIRE φ0 58mm 5mm B 1 0094101552 W226 WIRE φ0 58mm 5mm B 1 0094101552 W228 WIRE φ0 58mm 5mm B 1 0094101552 W266 WIRE φ0 58mm 5mm B 1 0094101552 W410 WIRE φ0 58mm 5mm B 1 0094101552 W602 WIRE φ0 58mm 5mm B 1 0094101552 W603 WIRE φ0 58mm 5mm B 1 0094101552 W607 WIRE φ0 58mm 5m...

Page 22: ...8mm 7 5mm B 1 0094101552 W284 WIRE φ0 58mm 7 5mm B 1 0094101552 W285 WIRE φ0 58mm 7 5mm B 1 0094101552 W286 WIRE φ0 58mm 7 5mm B 1 0094101552 W301 WIRE φ0 58mm 7 5mm B 1 0094101552 W303 WIRE φ0 58mm 7 5mm B 1 0094101552 W402 WIRE φ0 58mm 7 5mm B 1 0094101552 L810 WIRE φ0 58mm 7 5mm B 1 0094101552 L809 WIRE φ0 58mm 7 5mm B 1 0094101552 W404 WIRE φ0 58mm 7 5mm B 1 0094101552 W405 WIRE φ0 58mm 7 5mm ...

Page 23: ...10mm B 1 0094101552 W613 WIRE φ0 58mm 10mm B 1 0094101552 W728 WIRE φ0 58mm 10mm B 1 0094101552 W741 WIRE φ0 58mm 10mm B 1 0094101552 W805 WIRE φ0 58mm 10mm B 1 0094101552 W807 WIRE φ0 58mm 10mm B 1 0094101552 W808 WIRE φ0 58mm 10mm B 1 0094101552 W809 WIRE φ0 58mm 10mm B 1 0094101552 W812 WIRE φ0 58mm 10mm B 1 0094101552 DZ804 WIRE φ0 58mm 10mm B 1 0094101552 W222 WIRE φ0 58mm 10mm B 1 0094101552...

Page 24: ...4 J F 1 0094201463 CD29 PLASRIC FILM CAPACITOR CL21X 63V 224 J F 1 0094201465 CD28 PLASRIC FILM CAPACITOR CL21X 63V 474 J F 1 0094200747 CD27 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 16V 100μF M F05 1 0094200747 CD39 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 16V 100μF M F05 1 0094200043 CD47 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50V 1μF M F05 1 0094200043 CD48 ALUMINIUM ELECTROLYSE CAPACITOR CD110X 50...

Page 25: ...000440 SW1004 TOUCH SWITCH KFC A06 21050 1 0094000440 SW1005 TOUCH SWITCH KFC A06 21050 1 0094000440 SW1006 TOUCH SWITCH KFC A06 21050 1 0090400941 与 XZ1001 WIRE TJC3 3Y PH 3Y 1 0094300198 XZ1001 SOCKET PH 3A 90 1 0091801968 PCB 0091801968 V1 0 1 0094102591 RT06 OXIDATION FILM RESISTOR RY15 1 2W 330Ω J T52 1 0094102592 RT05 OXIDATION FILM RESISTOR RY15 1 2W 330Ω J T52 1 0094101552 WT01A WIRE φ0 58...

Page 26: ...SJ2824 87 ST4 12F 3 0090506507 CARTON 1 0090506312 PACKING BAG FOR USER MANNUAL 1 0090505495 SERVICE CARD 1 0090500018 PLASTIC BAG 240 160 1 0090206957 PVC 1 0094011232A REMOTE CONTROLLER 1 11 Exploded view PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint com cn ...

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