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Summary of Contents for Proview SH970I
- Page 1 SH970I Service Manual...
- Page 2 TABLE OF CONTENTS SERVICE WARNING · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · A.
- Page 3 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 this product.
- Page 4 If the product exhibits a distinct change in performance,indicating a need for service. B. SPECIFICATIONS 1. Maximum Resolution 1280*1024 @ 75Hz 2. Recommend Resolution 1280*1024 @ 60Hz 3. Synchronization Range Horizontal 30 – 81 KHz 56– 75 Hz Vertical 4. Active Display Area 337.9mm (H) x 270.3mm (V) 0.264(H) x 0.264(V) mm 5.
- Page 5 C.TIMING CHART Video A: Period B: Active C: Sync Width Sync. D: Back Porch E: Front porch VESA VESA VESA *MAC Preset *VGA VESA VESA VESA 640X480 640X480 800X600 800X600 832X624 Modes 640X480 640X480 720X400 800X600 800X600 Dot Rate 25.175MHz 31.340MHz 31.500MHz 31.500MHz 28.322MHz 36.000MHz 40.000MHz 50.000MHz 49.500MHz 55.000MHz 31.469KHz 34.978KHz 37.861KHz 37.500KHz 31.469KHz 35.156KHz 37.879KHz 48.077KHz 46.875KHz 49.107KHz A-period 31.778us...
- Page 6 Preset VESA VESA VESA VESA VESA Modes 1024X768 1024X768 1024X768 1280X1024 1280X1024 Dot Rate 75.000MH 65.000MHz 78.750MHz 108.00MhZ 135.00MHz 56.476KH 48.363KHz 60.023KHz 63.98KHz 79.976KHz A-period 20.677us 17.707us 16.660us 15.630us 12.504us B-Active 15.754us 13.653us 13.003us 11.852us 9.481us C-Sync.width 2.092us 1.813us 1.219us 1.037us 1.067us D-Back...
- Page 7 D. CONTROL LOCATION Font control panel...
- Page 9 1. Power Button 2. 2. LED (Power Display) 3. Menu Button 4. Select Button 5. Auto Button...
- Page 10 E. CONDUCTION VIEW MAIN BOARD (Component Side)
- Page 11 MAIN BOARD (Component Side)
- Page 14 MAIN BOARD (Solid Side)
- Page 16 F. ADJUSTMENT PROCEDURE ﹟ Test Meter Check ITEM ﹡ Test Point Operation Value Program Menu. ﹫ Pattern 12.0V ﹟ Digital Voltmeter 1. Plug power cable into the adapter, check adapter ±0.2V Check power indicator light up green. ﹡ CN7 2. Make sure the voltage of the power plug ( ﹫...
- Page 17 Power Saving ﹟ Wattmeter 1. Unplug the signal cable into the monitor. Check 2. Turn the power switch of the monitor ﹟ PC or Pattern 3. Check monitor power indicator light up orange. generator ‹ 2.5W 4. Make sure the wattmeter value shown at right. ﹫...
- Page 18 LED Color Back light To Step 2 change ? Check main Check the /Pin1 board U2/Pin2 of Inverter High Voltage ! Make sure the Hi / Lo under +12V ? connection of push power Inverter is fine To Step 2 Display ? Check F1(Fuse) of inverter...
- Page 19 Check the connection of Change the Hi / Lo under cable push power main board Display ? Change the Inverter Nice Job ! Display ? Nice Job ! Change the main board To Step 2...
- Page 20 Step 2 Check the main Check board F1,D5 Check +5.0 V ? U10,U11,TR1 Check the main Check board Pin 5 Change H/V input Signal ? Check H/V Signal Change Display ? Signal Cable Nice Job !
- Page 21 No display (White) Check the main Check board U10,U11,TR1 Check +3.3V ? U8,U13 Check the main Check board U9/Pin3 3.3V Circuit Change H/V Input Signal ? Check H/V Signal Change Display ? Signal Cable Nice Job !
- Page 23 H. BLOCK DIAGRAM VSYNC HSYNC LVDS LCD PANEL(LVDS) SCALER VGA-IN 10 EVEN 8 RA0~RA7 12PIN 8 R0~R7 8 GA0~GA7 3 {R.G.B} 8 G0~G7 8 BA0~BA7 DDC-SDA DDC-SCL 8 B0~B7 D-DE LVDS 8 RB0~RB7 D.D.C 24C21 8 GB0~GB7 EEPROM CRYSTAL 10 ODD 8 BB0~BB7 HI VOLTAGE 24C16...
- Page 24 I.SCHEMATIC DIAGRA...
- Page 30 Memu.
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