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Related Manuals for Haier DTA21F98
Summary of Contents for Haier DTA21F98
- Page 1 Colour Television SERVICE MANUAL Haier model: DTA21F98 Customer model: DTA21F98 l FEATURES DVD-TV 21” COMBO AUTO TUNE/218 CHANNES DVD/VCD/SVCD/CD/CD-R/CD-RW/JPEG/MP3 COMPATIBLE PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
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Page 2: Table Of Contents
CONTENTS Safety precautions……………………………………………………………..……………3 TV block diagram……………………………………………………………………..…….4 Replacement of memory IC………………………………………………………….……5 Service adjustment……………………………………………………………..…………...5 ICs functional description…………………………………………………………………8 Test point waveform………………………………………………………………………10 All ICs voltages……………………………..……………………………………………….10 Purity / convergence adjustment………………………………………………………11 DVD maintenance…………………………………………………………………………13 10. List of Parts ………………………………………………………………………….…….14 11. Circuit diagram………………………………………………………………………Attached 12. Exploded view…………………………………………………………………Attached PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn... -
Page 3: Safety Precautions
1. SAFETY PRECAUTIONS The design of this product contains special hardware, many Isolation Check circuits and components especially for safety purposes. For (Safety for Electrical Shock Hazard) continued protection, no changes should be made to the After re-assembling the product, always perform an isolation original design unless authorized in writing by the check on the exposed metal parts of the cabinet (antenna manufacturer. -
Page 4: Tv Block Diagram
Block diagram TDA9361PS/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: Replacement Of Memory Ic
3. REPLACEMENT OF MEMORY IC 1. MEMORY IC. This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection circuits. 2. PROCEDURE FOR REPLACING MEMORY IC (1) Power off Switch the power off and unplug the power cord from AC outlet. (2) Replace IC Be sure to use memory IC written with the initial data values. - Page 6 Adjustable Items Direct access key Items Description Preset Remark “1” 5/6HSH Horizontal shift “2” 5/6VSL Vertical slop 5/6VAM Vertical amplitude 5/6SCL S-correction 5/6VSH Vertical shift 5/6VOF OSD Vertical offset HOF* OSD Horizontal offset “3” Black level offset R Black level offset G White point R White point G White point B...
- Page 7 2. OP2 Function Description Preset Remark Bit 7 1=21dBμV 0=26dBμV Bit 6 1=Enable Bit 5 ARABIC_SET 1=Enable Bit 4 FARSI_SET 1=Enable Bit 3 CYRILLIC_SET Bit 2 EUROUP_SET 1=Enable Bit 1 AUTO_SOUND Bit 0 1=Enable 3. OP3 Function Description Preset Remark Bit 7 RUSSIA 1=Enable...
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Page 8: Ics Functional Description
7. OP7 Function Description Preset Remark Bit 7 FMWS 1=Enable Bit 6 HOTEL 1=Enable Bit 5 PROG_ID 1=Enable Bit 4 1=Enable Bit 3 TWIST 1=Enable Bit 2 BYELORUSSIAN 1=Enable Bit 1 UKRANIAN 1=Enable Bit 0 1=Enable 8. OP8 Function Description Preset Remark Bit 6... - Page 9 IREF Reference current input Vertical sawtooth capacitor TUNER AGC Tuner AGC output AUDEEM/SIFIN1 *1 Audio deemphasize or SIF input DECSDEM/SIFIN2 Decoupling sound demodulator GND2 Ground 2 for TV processor SNDPLL/SIFAGC *1 Narrow band PLL filter Automatic Volume Levelling HOUT Horizontal output FBISO Flyback input/sandcastle output AUDEXT...
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Page 10: Test Point Waveform
In 1 Ch 1 input Out 2 (+) Ch 2 output (+) 4. N301: Vertical output (TDA8357A) Symbol Function Symbol Function INV IN Input PUMP UP Pump up power INV IN Input V OUT Vertical output Pump up power V PRO Vertical protection V OUT Vertical output... -
Page 11: Purity / Convergence Adjustment
TDA9361 0.18 0.17 TDA8357 AN 7522N 2.75 0.35 24C08/PCF8598 8. PURITY / CONVERGENCE ADJUSTMENT PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn... - Page 12 PURITY ADJUSTMENT WEDGE Demagnetize CRT with the demagnetizer. DEFLECTION YOKE Loosen the retainer screw of the deflection yoke. Remove the wedges. Input a green raster signal from the signal generator, and turn the screen to green raster. Move the deflection yoke backward. P/C MAGNETS Bring the long lug of the purity magnets on the short P: PURITY MAGNET...
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Page 13: Dvd Maintenance
STATIC CONVERGENCE ADJUSTMENT 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets overlap the red and blue lines in the center of the screen (Fig. 1) and turn them to magenta (red/blue). (FRONT VIEW) 3. Using 6-pole convergence magnets overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white. - Page 14 9. DVD Part: Introduction of MTK1379 maintenance Under normal power supply conditions, the maintenance plan for MT1379 mono-chip is: first the reset circuit resets the MT1379, after the crystal oscillator circuit gave the clock signal to MT1379, MT1379 will start the initialization check for Flash、E PROM、SDRAM, after everything is checked to be normal, it will start initialization check for 7Audio DAC, MT1336 and motor Driver.
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Page 15: List Of Parts
10. List of Parts PART LOCATION DESCRIPTION NUMBER FRONT CABINET ASS’Y BCJ7008-----Q 90804172 LENS MTAA7011AA--Q 90204552 SCREW SJ2824-87 ST3X10F 90600011 KEYS MTAA7012AA--Q 90204553 SCREW SJ2824-87 ST3X10F 90600011 SCREW SJ2838-87 ST3x12F 90600200 90204554 SWITCH BUTTON MTAA7013AA--Q SPRING MTBH7004BC--Q 90100663 94008903 SPEAKER YDT0407-9AU-8W-8Ω... - Page 16 TELESCOPIC MAST 94501185 MAIN BAORD ASS’Y 94008724 N301B HEAT SINK HEAT SINK 90100450 N301C TDA8357J 94401409 N301D SCREW ST3X8F SJ2831-87 90600097 V401B SCREW ST3X8F SJ2831-87 90600097 V401A HEAT SINK QHS-30184A 90100017 V401 TRANSISTOR 2SD2499 94401401 N801A HEAT SINK QHS-30184A 90100765 N801C KA5Q0765RTH-YDTU 94401392...
- Page 17 C810 CERAMIC CAPACITOR CT1-B-500V-560pF-K-F05 94201449 C823 CERAMIC CAPACITOR CT81-400VAC-18B-2E4-332-M-10-C-A 94202412 C805 CAPACITOR CT1-B-1kV-1000pF-K-07-A 94201071 C849 CAPACITOR CL21X-63V-224-J------F 94201463 C216 CAPACITOR CL21X-63V-224-J------F 94201463 C414 CAPACITOR CL21X-400V-104-J-07-A-A 94200098 C227 CAPACITOR CBB13-50V-104-J-07-A-A 94200099 C416 CAPACITOR CBB21-400V-364-J-20-G-A 94200101 CBB81-1.6KV-752-J-20-A-A 94200104 C409 CAPACITOR C802A CAPACITOR MKT61-275V-104-M-15-G-A 94200105 C222...
- Page 18 GT502 CONNECTOR SOCKET TJC1-1A 94300090 C503 CERAMIC CAPACITOR CC1-B-500V-470PF-K-F05 94201264 C705 CAPACITOR CD71-50V-1uF-M-F05 94200994 C848 ELECT. CAPACITOR CD110X-25V-1000μF-M-05-A 94201011 CN702 WIRE ASS’Y 90401872 CN706 WIRE ASS’Y 90401670 CN703 CONNECTOR SOCKET TJC3-8A 94300106 WIRE ASS’Y 90401672 CN810 WIRE ASS’Y TJC3-4A 90400514 CN807-CN808 WIRE ASS’Y 90401671 WIRE ASS’Y...
- Page 19 R255 CARBON FILM RESISTOR RT13-1/6W-430-J------T 94100069 R106 CARBON FILM RESISTOR RT13-1/6W-470-J------T 94100020 R256 CARBON FILM RESISTOR RT13-1/6W-470-J------T 94100020 R242 CARBON FILM RESISTOR RT13-1/6W-1K-J------T 94100023 R243 CARBON FILM RESISTOR RT13-1/6W-1K-J------T 94100023 R258 CARBON FILM RESISTOR RT13-1/6W-1K-J------T 94100023 R840 CARBON FILM RESISTOR RT13-1/6W-510-J------T 94100070 R227...
- Page 20 R226 CARBON FILM RESISTOR RT13-1/6W-15K-J------T 94100034 R249 CARBON FILM RESISTOR RT13-1/6W-20K-J------T 94100074 R274 CARBON FILM RESISTOR RT13-1/6W-22K-J------T 94100779 R276 CARBON FILM RESISTOR RT13-1/6W-27K-J------T 94100780 W610 CARBON FILM RESISTOR RT13-1/6W-56K-J------T 94100038 R275 CARBON FILM RESISTOR RT13-1/6W-270K-J------T 94100943 R273 CARBON FILM RESISTOR RT13-1/6W-33K-J------T 94100036 R621...
- Page 21 C611 CERAMIC CAPACITOR CT1-B-63V-4700PF-K-F05 94201039 C111 CERAMIC CAPACITOR CT1-2F4-63V-0.01μF-Z------F 94201040 C207 CERAMIC CAPACITOR CT1-B-63V-0.01μF-K-F05 94201040 C225 CERAMIC CAPACITOR CT1-B-63V-0.01μF-K-F05 94201040 C226 CERAMIC CAPACITOR CT1-B-63V-0.01μF-K-F05 94201040 C228 CERAMIC CAPACITOR CT1-F-63V-0.022μF-Z-F05 94201448 C254 CERAMIC CAPACITOR CT1-F-63V-0.022μF-Z-F05 94201448 C101 CERAMIC CAPACITOR CS1-F-63V-0.1μF-Z-F05 94201617 C202 CERAMIC CAPACITOR CS1-F-63V-0.1μF-Z-F05...
- Page 22 C750 ELECT. CAPACITOR CD110X-50V-1μF-M-F05 94200043 C621 ELECT. CAPACITOR CD110X-50V-1μF-M-F05 94200043 C740 ELECT. CAPACITOR CD110X-50V-1μF-M-F05 94200043 C224 ELECT. CAPACITOR CD110X-50V-2.2μF-M-F05 94200044 C258 ELECT. CAPACITOR CD110X-50V-2.2μF-M-F05 94200044 C201 ELECT. CAPACITOR CD110X-50V-10μF-M-F05 94200046 C802 ELECT. CAPACITOR CD110X-50V-47μF-M-F05 94200858 C404 ELECT. CAPACITOR CD263-25V-470uF-M-F05 94200729 C415 ELECT.
- Page 23 V620 TRANSISTOR KSA539-YTA------F 94400203 V622 TRANSISTOR KSA539-YTA------F 94400203 V402 TRANSISTOR KSC2331-YTA------F 94400204 V206 TRANSISTOR KSC815-YTA------F 94400192 V208 TRANSISTOR KSC815-YTA------F 94400192 V212 TRANSISTOR KSC815-YTA------F 94400192 V213 TRANSISTOR KSC815-YTA------F 94400192 V621 TRANSISTOR KSC815-YTA------F 94400192 V801 TRANSISTOR KSC815-YTA------F 94400192 V802 TRANSISTOR KSC815-YTA------F 94400192 V803 TRANSISTOR KSC815-YTA------F...
- Page 24 WIRE ASS’Y 90401735 COAXIAL PCB 91801448 DVD INPUT PCB 0091800828V1.0 91800828 R001 RT13-1/6W-120-J------T 94100942 CARBON FILM RESISTOR R002 RT13-1/6W-200-J------T 94100133 CARBON FILM RESISTOR R003 RT13-1/6W-100-J------T 94100017 CARBON FILM RESISTOR C001 CD110-16V-10uF±20%------F 94200008 ELECT. CAPACITOR C002 CD110-16V-10uF±20%------F 94200008 ELECT. CAPACITOR C003 CD110-16V-10uF±20%------F 94200008 ELECT.
- Page 25 11、Exploed view PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
- Page 26 Exploded view part list Exploded view part list MATERIAL CODE PARTS NAME Q’TY REMARK 0090503696 Switch batton 0090204519 Front frame 0090204556 Dvd stand 0094010705 Main board 0090204546 stand 0094010705 Main board 0094004133 0094008903 Speaker 0090204557 Rear cover PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...
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Page 27: Circuit Diagram
数量 更改单号 签 名 日期 更改 数量 更改单号 签 名 标记 标记 标记 底图总号 拟 制 审 核 W90DL-206---Q DTA21F98 签 名 日期 标准化 等级标记 第 张 共 张 Circuit Theory Ddrawing 批 准 格式 制图 ： 描图 ： 幅面... - Page 28 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn...