Teaching Samsung,iPhone, and Smartphones repairing courses online Published many free Books on Repairing of Cell phones, Android phones, Apple iPhone,ipad and others.Get trained today for build your career in android smartphones and tablets repairing contact: +92-312-2906096 email mobilerepairingonline@gmail.com


Search This Blog

Showing posts with label check mobile components with digital multimeter. Show all posts
Showing posts with label check mobile components with digital multimeter. Show all posts

How to Check Polar Capacitor in Smartphone Circuit

7 Dec 2017
All smartphone non polar and polar Capacitor finding and Checking method are same.you can use Digital and Analog Multimeter both to Check Capacitors in smartphone motherboards.

The Tantalum Polarized Capacitor

Tantalum polar capacitors are used in latest smartphone circuits. Tantalum Polarized Capacitors are typically used in large voltage mobile phone situations, such as Direct Current line filtering to reduce noise related to uneven DC voltage levels. Mainly value measured in microfarads. Polarity is critical to mobile devices.
Polar Capacitor Checking method is listed below with Digital Multimeter. Set Digital multi-meter on CONTINUITY Scenior1: Connect Black probe to Capacitor +VE print. and Red probe to Polar Capacitor -VE print shows some reading.


Note: Check Polar Capacitor with a Digital multimeter on Buzzer Mode. If it is good then the Digital multimeter will NOT give any Beep or Buzz sound. If there is the buzzer sound on Digital multimeter form both +VE and -VE side then the polar capacitor is faulty. Replace it with a new one.

Why Polarized Capacitor Short Lead

Polar capacitors can have an internal shorted terminals, excessive leakage, and degradation of capacitance meter. short the terminal capacitor to discharge it prior to testing.
for more free smartphone video tutorials in English and Urdu language go to my youtube channel visit now mobile repairing online
Read more ...