Sony Xperia ST18i display မီးမလာ တာတို႔ မွိန္တာတို႕ display နဲ႕ပါတ္သက္လို႕

1.emi filter နဲ႕ Circuits pcb ေတြကို အပူေပး (သို႕) သန္႕ရွင္းေရး (သို႕)ေပါင္းစက္နဲ႕ေပါင္းၾကည္႔ပါ/

2.Display ကႀကိဳး pin 5 ခုခ်င္း  ဆက္ပါ…  /

3. L7600 and V7601 ေတြကို ခဲေဆာ္ (သို႕)အပူေပး (တုန္ၾကည္႔ပါ)/

4. L7600 and V7601 အစားထိုးလဲႀကည့္ပါ/

5.ပံုမွျပထားတဲ့ surface mount resistor ေလးကို jumper (သို႕) အစႏွစ္ဘက္ကို join လိုက္ပါ။

 What is emi =electromagnetic interference?

Electromagnetic interference, EMI, is any undesirable electromagnetic emission or any electrical or electronic disturbance, man-made or natural, which causes an undesirable response, malfunctioning or degradation in the performance of electrical equipment. 

How does an EMI filter work?

An EMI filter has a high reactive component to its impedance.  That means the filter looks like a much higher resistance to higher frequency signals.  This high impedances attenuates or reduced the strength of these signals so they will have less of an effect on other devices. 

 http://www.jmkfilters.com/faq.htm 

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TELEMOBILE(ပခုကၠဴ)
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