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P6NS SERIES
Service Manual
PROVIEW ELECTRONICS CO.,LTD
6F,No.1,Pau-Sheng Road,Yung-Ho City,Taipei 234,Taiwan
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Tel : (886-2) 2231-6789 , Fax :(886-2) 2231-5678 TABLE OF CONTENTS SERVICE WARNING····································· 1 A. IMPORTANT SAFETY INSTRUCTION····················· 1 B. SPECIFICATIONS 2 ···································· C. TIMING CHART······································ 5 D. CONTROL LOCATION································· 6 E. ADJUSTMENT CONTROL LOCATION················
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WARNING To prevent from fire or shock hazard,do not expose monitor to any rain or any form of water.High voltage is inside the monitor so please do not remove the back cover of the cabinet if you are not a qualified monitor engineer. Contact the local dealer or the nearest PROVIEW branch office if you need help. A. IMPORTANT SAFETY INSTRUCTION Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in the user's manual for t
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For Model 786NS,986NS Series WARNING : This product included critical components which are essential for X-Radiation safety. See service manual for proper replacement.Maximum 2nd anode voltage must not exceed 30KV at any operating conditions. To measure 2nd voltage use high impedance meter connect (-) chassis, use a high voltage lead from (+) to 2nd anode. For Model 572NS Series WARNING : This product included critical components which are essential for X
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B. SPECIFICATIONS 562NS,572NS Series 1. Screen 15 F&S 0.28mm,Antistatic coating 2. Visible Image Area 13.70 inches 3. Active Display Area 260 mm (H) × 190mm (V) 4. Synchronization Range Horizontal 30 – 70 KHz ----- (572NS Series) 30 – 55 KHz ----- (562NS Series) Vertical 50 – 160 Hz 5. Power Source 100 – 240 Vac , 60/50 Hz 6. Power Consumption 70W (max.) 7. Input Signal Video
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17” F&S 0.27mm,Antistatic coating (772NS) 1. Screen 17” F&S 0.25mm,Antistatic coating (786NS) 17” Pure flat screen,0.25mm,Antistatic coating(777NS,787NS) 15.7 inch ----- (772NS,786NS Series) 2. Visible Image Area 16.02 inch ----- (777NS,787NS Series) 3. Active Display Area 310mm (H) × 230mm (V) 4. Synchronization Range Horizontal 30 – 70 KHz ----- (772NS,777NS Series) 30 – 86 KHz ----- (786NS,986NS Series) Vertical 50 – 160 Hz
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1. Screen 19” F&S 0.25mm,Antistatic coating 2. Visible Image Area 17.9 inch 3. Active Display Area 360mm (H) × 270mm (V) 4. Synchronization Range Horizontal 30 – 86 KHz Vertical 50 – 160 Hz 5. Power Source 100 – 240 Vac , 60/50 Hz 6. Power Consumption 110W (max.) 7. Input Signal Video Analog R.G.B. , 0.7Vp-p / 75 Ohm
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C. TIMING CHART A : Period B : Active Video C : Sync Width
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D. CONTROL LOCATION Font control panel One key type Four key type a. Power Switch a. Power Switch b. Power Indicator b. Power Indicator c.Encoder c. Exit d. Enhance Key d. ＋Adjust e. －Adjust f. Menu 9
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E. ADJUSTMENT CONTROL LOCATION IC601 IC901 VR501 L705 Q703 T501 C504 Q504 FBT F501 10 VR601
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F. ADJUSTMENT PROCEDURE ﹟Test Meter ITEM Adjusting ﹡Test Point Operation Value Program Menu. ﹫ Pattern B+ ﹟ 1. Make the adjustment to the value shown at right 15.5V Digital Voltmeter Adjust by turning the VR501 on the main PCB. ±0.2V ﹡ D510 Negative A ﹫Crosshatch Pattern (31.5KHz,640x480) High Voltage ﹟Digital Voltmeter 1. Turn the power switch of the monitor OFF. 26.0KV Adjust 2. Co
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﹟Test Meter ITEM Adjusting ﹡Test Point Operation Value Program Menu. ﹫Pattern Four key model : Preset Other adj. : Step 1 : Press and relese the OSD control knob to Best Point Adjust activate the OSD menu. Step 2 : Press +/▲or -/▼key to highlight the desired option of OSD icon. C Step 3 : Press and release MENU key to acress the option.Th
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﹟Test Meter ITEM Adjusting ﹡ Test Point Operation Value Program Menu. ﹫ Pattern Dynamic ﹟Oscilloscope 1. Set the contrast to MAX.,and adjustment VF : Brightness to the raster just appear. 140(17”) Focus ﹡FBT Pin14 H Adjust 2. Make the adjustment to the value shown at right 150(19”) ﹫Full White by adjust the VF on the OSD menu. ±10VP-P (31.5KHz,640x480) 3. Make the check to the value shown at right by HF : adjust the HF
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G. BLOCK DIAGRAM 16 16
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