DSC-W620 - Sony Digital Camera Service Manual (repair manual). Page 23

DSC-W620

3-15

 

To Tele, apply a positive supply voltage (+) 
of DC2.5 V here. 

To retract, apply a positive supply voltage (+) 
of DC2.5 V here.  

22. Install the two screws.

23. Solder the connection.  

24. To test the assembly, apply a voltage of 2.5 V for DC to the zoom motor.

Mirror

Dust check

1. Viewing from the front lens 

No visible dust inside the lens. 

2. Shooting check 

2-1. Shoot the object with following conditions 

- Object should be perfect white high brightness object. (Example; PTB1450 clear chart, etc)  
- Shoot above object from a few centimeters with Pixel; Maximum size and Tele end. 

2-2. Check the image on PC. Image should have no dust. 

Focus Check 

1. Preparation 

- Camera installed re-assemble lens 
- Test camera for comparing  
- Chart (Printed PDF file at the same magnification) 
- Tripod 
- Mirror (ex. CD) 
- Memory Stick 
- PC

2. Setting up to shoot 

2-1. Paste the chart. 

- Chart should be on the flat wall.
- Illuminance level in the chart should be the same.  
- Make the tripod’s height and the center of the chart to the same
  height. 
- Enough space needed for shooting 

2-2. Set up the camera as follows;  

- [P] mode  
- [Maximum] size   
- ISO lowest level  
- Steady Shot [OFF]   
- Flash [OFF]  

2-3. Attach the camera on a tripod.  

2-4. Align the positions of the camera and the chart as follows; 

2-4-1. Set the zoom position of the camera at Wide end.  
2-4-2. Attach the mirror(*) onto the center of the chart.  

(*) The mirror should not tilt on the chart.