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Tovis MTG-2902SN/SE, Руководство по эксплуатации и обслуживанию

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10 

 

 

 

TROUBLE SHOOTING CHART

 

 

NO RASTER

 

 

CONTRAST

 

 

BRIGHTNESS

 

 

 

BRIGHTNESS 

CHECK 

G1 VOLTAGE 

CHECK &   

REPLACEMENT 

Q411, D414

 

NO 

NO

 

CHECK &   

REPLACEMENT 

R126, IC101

CHECK C115 

VOLTAGE 

YES 

CHECK &   

REPLACEMENT 

SG201~204 VOLTAGE 

 

CONTRAST  

CHECK IC201 

#12 VOLTAGE 

CHECK &   

REPLACEMENT 

IC201, R903, ZD901

NO 

NO

 

CHECK &   

REPLACEMENT 

IC101

CHECK IC201 

#18 WAVEFORM 

YES 

CHECK &   

REPLACEMENT 

IC101 

YES

 

 NO RASTER  

YES 

CHECK & 

REPLACEMENT 

 Q425, Q407

 

CHECK 

H/V & G2 

CHECK Q425 

WAVEFORM 

CHECK  

G1 & DC 170V

 

CHECK BD404 

DC 170V 

CHECK & 

REPLACEMENT 

BD404, R854

CHECK & 

REPLACEMENT 

G1 CIRCUIT

 

NO

YES

NO

NO

NO 

CHECK & 

REPLACEMENT 

FBT, CRT 

YES

YES

Содержание MTG-2902SN/SE

Страница 1: ...2003 Information subject to change as display technology advance This publication produced by TOVIS Engineering Division This monitor has been designed and manufactured to deliver high performance vid...

Страница 2: ...ission NEVER attempt to modify these circuits 2 Periodically check the high voltage with a reliably calibrated meter for values not in excess of Manufacturer s recommendations See high voltage Shut do...

Страница 3: ...Current To chassis ground at 220VAC 50Hz Line Neutral in common 0 195mA Maximum 7 High Pot Line Neutral in common to secondary chassis 1500VAC 60Hz for 1 second 2 0mA Maximum No Breakdown 8 Implosion...

Страница 4: ...38 FST 530V 600V 450V 10V Brightness 29 FST 33 FST 38 FST 0 4FL 0 5FL 0 7FL 0 3FL Contrast 10 Window Box 29 FST 33 FST 38 FST 60 0FL 47 0FL 40 0FL 5FL White Balance 9300 X 0 281 Y 0 311 0 015 0 015 W...

Страница 5: ...OSD come out as below Figure 2 Search BRIGHTNESS sub menu using UP DOWN key on the Main Menu OSD 3 Select the BRIGHTNESS by pressing SEL key Then the BRIGHTNESS Sub Menu OSD comes out as below figure...

Страница 6: ...erased and covered by factory adjustment value At first stage without any user s adjustment The monitor set upped by factory adjustment value Factory control On Screen Display This monitor has two adj...

Страница 7: ...BIAS adjustment 9 If you want to adjust other GAIN or BIAS Repeat from item C Color Adjustment 10 Press MODE key again to finish the COLOR Adjustment 11 If you want to finish factory adjustment Selec...

Страница 8: ...2 S Corection H V Pro KB2147 Ver Out STV9379 FBT SMPS KA3842 2SK2676 260V 160V 32V 15V 6 3V 5V Doubler STR83145 AC Input Video Output Video Pre AMP KA2500 OSD KS2508 BIAS Video In G1 G2 G4 Deflection...

Страница 9: ...CK Q802 D WAVEFORM YES NO CHECK REPLACEMENT BD801 IC801 NO CHECK REPLACEMENT IC802 CHECK SIGNAL CABLE CHECK REPLACEMENT SIGNAL CABLE NO YES NO VIDEO CHECK IC201 21 24 26 PULSE CHECK IC201 23 DC LEVEL...

Страница 10: ...G201 204 VOLTAGE CONTRAST CHECK IC201 12 VOLTAGE CHECK REPLACEMENT IC201 R903 ZD901 NO NO CHECK REPLACEMENT IC101 CHECK IC201 18 WAVEFORM YES CHECK REPLACEMENT IC101 YES NO RASTER YES CHECK REPLACEMEN...

Страница 11: ...11 SERVICE NOTICS...

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