ViewSonic Va703b3 Service Manual

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  Confidential - Do Not Copy  VA703b-3_VA703m-3 
 
(2). Select “Connect”, auto connect for ISP. 
 
(3). Select “Run”, start ISP. 
 
(4). When the picture show  “Verify OK”, ISP finished.  

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After repair, to ensure the qualit y you should do the following test and 
adjustment 
 
Item Content Equipment 
Test OSD function  1.Signal is set as 1280x1024@60Hz   
2. LCM button are from left to right, checking whether each single 
function key and compound function key can be worked.  Chroma 
Signal Generator 
Contrast Check 1. Set input mode to 1280x1024@60Hz 
2. Set Pattern to 32 gray shades 
3. Set contrast to the max....

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Disassembly Block 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
PCBA PWR& Inv/B*1 
Cable Power&I/F *1 
(SCREW PW,M3*5,Ni)*3   
SCREW ,Spr/Washer,M3*6,Zn*1
Keypad*1 
Keypad Cable*1 
 ASSY PANEL*1  
TAPE,ACE(PC=10x45mm)*1 
SPEAKER*1  
 
Chassis*1 
INNOLUX Panel*1 
(SCREW  PW,M3*5,Ni)*4  
Mylar,
 22x20x12X0.3mm*1 
 
SCREW,P,M4*6,Black*4 
SCREW,P,M4*8,Zn*2 
HIGNE COVER*1 
ASSY STAND*1 
Assy  Bezel*1 
ASSY...

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ViewSonic Corporation
  Confidential - Do Not Copy  VA703b-3_VA703m-3 
Assembly Block 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 

 
PCBA PWR& Inv/B*1 
Cable Power&I/F *1 
(SCREW PW,M3*5,Ni)*3   
SCREW ,Spr/Washer,M3*6,Zn*1  
 
Keypad*1 
Keypad Cable*1   
ASSY PANEL*1  
TAPE,ACE(PC=10x45mm)*1 
SPEAKER*1  
 
 
Chassis*1 
INNOLUX Panel*1 
(SCREW  PW,M3*5,Ni)*4 
Mylar,
 22x20x12X0.3mm*1 
 
SCREW,P,M4*6,Black*4 
SCREW,P,M4*8,Zn*2 
HIGNE COVER*1 
ASSY STAND*1 
Assy  Bezel*1...

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5.  Packing for Shipping  and Disassembly Procedure 
5.1 Packing for Shipping 
5.1.1 Packing Procedure 
z   Paste protection film to protect the monitor. (Figure 1) 
z   Put the monitor in the PE bag and se al the bag with tape. (Figure 2) 
                         ZZZ 
Figure 1                            Figure 2 
z   Disassemble the base by pushing the button.(Figure 3) 
z   Put the cushions on the monitor. (Figure 4) 
z...

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5.2 Disassembly Procedure 
           
 
 
 
 
           
 
 
 
 
 
          
 
 
  

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ViewSonic Corporation
  Confidential - Do Not Copy  VA703b-3_VA703m-3 
6. Troubleshooting Flow Chart 
 
   
1. Common Acknowledge
 
z   If you change the interface board, be sure that  the U103, U105, U106 and U108 these three 
components also changed to the new I/F board becaus e there was program inside. If not, please 
re-write EDID and upload firmwar e into U106 via VGA Cable. 
z   If you adjust clock and phase, please do it at the condition of Windows shut down pattern. 
z   If you confirm the...