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DAEWOO ELECTRONICS CO., LTD.

http : //svc.dwe.co.kr MAY, 2000

Service Manual

XGA COLOR MONITOR

Model : 902D/903Ds/904DF

Содержание 902D

Страница 1: ...DAEWOO ELECTRONICS CO LTD Service Manual XGA COLOR MONITOR Model 902D 903Ds 904DF...

Страница 2: ...g lead on the circuit board 4 Securely crimp each connection and solder it 5 Inspect the solder joints of the two original leads on the circuit board copper side If they are not shiny reheat them and...

Страница 3: ...rom 50Hz to 160Hz This color monitor supports IBM PC PC XT PC AT personal System 2 PS 2 Apple Macintosh and compatible users crisp text and vivid color graphics display when using the following graphi...

Страница 4: ...tment procedure described in the service manual is made by a visual check Allow 20 minutes warm up time for the display before checking or adjusting only electrical specification or function Reform th...

Страница 5: ...function Move cursor to the left window on the OSD window Decrease the value of any selected function Launch OSD On Screen Display MENU window Move cursor to the high window on the OSD window Increas...

Страница 6: ...Key Process When you choose the icon on the OSD window you can exit the OSD screen Hot Key BRIGHTNESS CONTRAST DEUTSCH ENGL SH ESPA OL FRANCA S TAL ANO Start MENU...

Страница 7: ...ENTER Choose different preset color temperatures or set your own customized color parameters Adjust the red gain Adjust the green gain Adjust the blue gain COLOR TEMP RED GAIN GREEN GAIN BLUE GAIN Adj...

Страница 8: ...wards left or right PIN BALANCE TRAPEZOID Adjust the pin W control when the sides of the screen are in a W shape PIN W Control Degauss the display and restore image quality DEGAUSS Reset the screen to...

Страница 9: ...ol to Maximum b Receive all H character pattern of 91KHz mode signal c Adjust the Static Focus VR to obtain best H Focus d Adjust the Dynamic Focus VR to obtain best V Focus e If the H V Focus is not...

Страница 10: ...the brightness to the desired condition c Vertical red and blue lines are converged by varying the angles between the two tabs of the 4 pole magnets d Horizontal red and blue lines are converged by va...

Страница 11: ...15 TROUBLESHOOTING HINTS 1 No Character...

Страница 12: ...16 2 No Raster...

Страница 13: ...17 3 A Missing Color...

Страница 14: ...18 4 Abnormal OSD Font...

Страница 15: ...19 5 Horizontal Output Circuit MODE SCAN B VGA 31 5KHz 45V S VGA 37 8KHz 60V XGA 46K 72V CAD 68K 109V 79KHz 125V 93KHz 135V...

Страница 16: ...20 6 Unstable Picture 6 1 Horizontal...

Страница 17: ...21 6 2 Vertical...

Страница 18: ...22 7 Focus...

Страница 19: ...23 7 1 Dynamic Focus SAMSUNG CRT FvH Fvv 902D 320V 180V 903Ds 400V 200V 904DF 350V 180V...

Страница 20: ...24 8 Convergence...

Страница 21: ...25 9 Abnormal Picture 9 1 Horizontal Size At first adjust controls in the OSD Menu MODE Scan B VGA 45V S VGA 60V XGA 46K 72V CAD 68K 109V 79K 125V 93K 135V The B are as follows...

Страница 22: ...26 9 2 Vertical Size...

Страница 23: ...27 10 High Voltage Output Circuit Test mode 91KHz...

Страница 24: ...28 11 Side Pincushion Circuit...

Страница 25: ...29 12 Power Supply Unit P S U...

Страница 26: ...30...

Страница 27: ...PC1884BCT NEC V Driver TDA8172 SGS Thompson PWM D A IIC Control Auto H Linearity OP Amp H Def Output TR Damper C S Switching 2SC5411 DD54RC Toshiba IIC Control B PWM EUT Geometrical Compensation H V M...

Страница 28: ...41 DIAGRAM on Refer to the Electrical Parts List for 903Ds 904DF...

Страница 29: ...42 Refer to the Electrical Parts List for 903Ds 904DF...

Страница 30: ...43 he Electrical Parts List for 903Ds 904DF...

Страница 31: ...44 CAL PARTS LIST...

Страница 32: ...45...

Страница 33: ...46...

Страница 34: ...25pF D 0 5 F 1pF J 5 K 10 P 100 0 Z 80 Fig Part No Description Index R101 Resistors RD 4Z820J Carbon 82J R102 RD 4Z201J Carbon1 4W 200J Allowance F 1 J 5 K 10 M 20 G 2 INFORMATION OF PART DESCRIPTION...

Страница 35: ...EXF1E101V C ELECTRO 25V RSS 100MF 6 3X11 TP C025 CEXF2C220V C ELECTRO 160V RSS 22MF 10X20 TP C026 CCXB3D331K C CERA 2KV B 330PF K TAPPING C027 CCXB2H471K C CERA 500V B 470PF K TAPPING C029 CMXM2A104J...

Страница 36: ...C ELECTRO 16V RND 47MF 8X11 5 TP C223 CCXF1H103Z C CERA 50V F 0 01MF Z TAPPING C224 CCXE3D103P C CERA HIKE 2KV 0 01MF P C231 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP C232 CEXF1H470V C ELECTRO 50V RS...

Страница 37: ...74J C MYLAR MEU 100V 0 47MF J C506 CMXL2A683J C MYLAR MEU 100V 0 068MF J TP C507 CMXL2A334J C MYLAR MEU 100V 0 33MF J C508 CMXM2A104J C MYLAR 100V 0 1MF J TP C509 CCXF1H104Z C CERA 50V F 0 1MF Z C510...

Страница 38: ...00V 0 1MF J 903Ds only C578 CMXF2G124J C MYLAR MPP 400V 0 12MF J C579 CMXF2G124J C MYLAR MPP 400V 0 12MF J C580 CMXF2D124J C MYLAR MPP 200V 0 12MF J C581 CMXF2D224J C MYLAR MPP 200V 0 22MF J C582 CMYF...

Страница 39: ...O 100V RND 1MF 5 11 TP C867 HCFK103ZCA C CHIP CERA 50V Y5V 0 01MF Z 2012 C868 CMXM2A222J C MYLAR 100V 2200PF J TP C869 CMXM2A333J C MYLAR 100V 0 033MF J TP C873 CCXF1H104Z C CERA 50V F 0 1MF Z C874 CE...

Страница 40: ...9V1 D110 DRK36 DIODE RK36 D111 DRG4 DIODE RG4 D113 DRG4 DIODE RG4 D114 D1NS4 DIODE 1NS4 D160 DZN4148 DIODE 1N4148 AUTO 52MM D161 DZN4148 DIODE 1N4148 AUTO 52MM D162 DZN4148 DIODE 1N4148 AUTO 52MM D163...

Страница 41: ...AUTO 52MM D544 DS2L60 R DIODE S2L60 D545 DZN4148 DIODE 1N4148 AUTO 52MM D565 DZN4148 DIODE 1N4148 AUTO 52MM D571 DZN4148 DIODE 1N4148 AUTO 52MM D801 DZN4148 DIODE 1N4148 AUTO 52MM D802 DZN4148 DIODE...

Страница 42: ...OSC UPC1884BCT IC502 1DBL358 IC DBL358 DUAL OP AMP IC503 1K1A555P IC TIMER KIA555P 904DF only IC503 1UPC1555C IC UPC1555C IC601 1DBL358 IC DBL358 DUAL OP AMP IC801 1M52743BSP IC VIDEO PREAMP M52743BS...

Страница 43: ...R KTC3198Y 1815Y AUTO Q243 T2SC4632 TR 2SC4632 Q243 TKSC5042F TR KSC5042F 904DF only Q244 T2SC4632 TR 2SC4632 Q244 TKSC5042F TR KSC5042F 904DF only Q301 TZTC3198Y TR KTC3198Y 1815Y AUTO Q302 TZSR1006...

Страница 44: ...R CARBON FILM 1 6 3 9K OHM J R030 RS02Z202J R M OXIDE FILM 2W 2K OHM J TAPPING R031 RD 2Z334JS R CARBON FILM 1 2 330K OHM J SMALL R032 RD AZ473J R CARBON FILM 1 6 47K OHM J R103 RD 4Z224J R CARBON FI...

Страница 45: ...7K OHM J R210 RD AZ822J R CARBON FILM 1 6 8 2K OHM J R211 RD 4Z123J R CARBON FILM 1 4 12K OHM J R220 RD AZ103J R CARBON FILM 1 6 10K OHM J R221 RD 2Z229JS R CARBON FILM 1 2 2 2 OHM J SMALL R222 RD 2Z2...

Страница 46: ...OHM J R318 RD AZ472J R CARBON FILM 1 6 4 7K OHM J R319 RD AZ473J R CARBON FILM 1 6 47K OHM J R328 RD 4Z151J R CARBON FILM 1 4 150 OHM J R330 RD AZ122J R CARBON FILM 1 6 1 2K OHM J R331 RD AZ122J R CAR...

Страница 47: ...12 RS02Z369J R M OXIDE FILM 2W 3 6 OHM J TAPPING R413 RS02Z129J R M OXIDE FILM 2W 1 2 OHM J TAPPING R414 RD AZ223J R CARBON FILM 1 6 22K OHM J R415 RD AZ223J R CARBON FILM 1 6 22K OHM J R416 RD AZ103J...

Страница 48: ...10K OHM F 903Ds only R544 RN AZ8201F R METAL FILM 1 6 8 2K OHM F R545 RD AZ102J R CARBON FILM 1 6 1K OHM J R545 RD AZ202J R CARBON FILM 1 6 2K OHM J 904DF only R546 RD AZ103J R CARBON FILM 1 6 10K OHM...

Страница 49: ...M J R608 RD AZ101J R CARBON FILM 1 6 100 OHM J R702 RD AZ302J R CARBON FILM 1 6 3K OHM J R703 RD AZ273J R CARBON FILM 1 6 27K OHM J R704 RD AZ153J R CARBON FILM 1 6 15K OHM J R705 RD AZ682J R CARBON F...

Страница 50: ...AZ101J R CARBON FILM 1 6 100 OHM J R855 RD AZ101J R CARBON FILM 1 6 100 OHM J R856 RD AZ221J R CARBON FILM 1 6 220 OHM J R857 HRFT102JCA R CHIP 1 10 1K OHM J 2012 R858 HRFT242JCA R CHIP 1 10 2 4K OHM...

Страница 51: ...SP201M SURGE ABSORBER WSP 201M SG861 DWSP201M SURGE ABSORBER WSP 201M SW701 5S50101Z10 SW TACT KPT 1115AM SW702 5S50101Z10 SW TACT KPT 1115AM SW703 5S50101Z10 SW TACT KPT 1115AM SW704 5S50101Z10 SW TA...

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