Signals checking with Oscilloscope – DSO

DSO checking

Digital Storage Oscilloscope 

Oscilloscope in Smartphone Repairing

How to use Oscilloscope

I2C signal checking

SPI signals checking

MIPI signal checking

Display clock data reset signals checking

all sections signals identification and complaint prediction.

—–

if you are searching for how to use dso / DSO basic information / DSO basics / DSO options / DSO buttons / DSO menu and basic functions and how to use DSO Click here:

https://odoxinstitute.com/blog/f/dso-basics—explaining-menu-and-options

—–

I2C SIGNAL CHECKING

FULL TIME COMING WHEN SLAVE IS WORKING

BOOTING TIME AT THE TIME OF SECOND LOGO STARTING I2C SIGNAL COMES THEN GOES

I2C DECODING

IC2 PROTOCOL CAN BE DECODED BY DSO

WE CAN PREDICT READ WRITING ARE OK

GOTO MATH = DECODE1 à 

DECODER = I2C

DECODE = ON

CLK = CH2

DATA = CH1

IF NO DECODING EXCHANGE DATA & CLK

SPI SIGNAL CHECKING

DISPLAY PWM SIGNAL CHECKING

USED FOR BRIGHTNESS CONTROL

IT IS SIGNAL FROM DISPLAY TO BACKLIGHT CONTROLLING IC

IT IS A FULL TIME SIGNAL WHEN DISPLAY IS ON

IT BECOMES OFF WHEN DISPLAY BECOMES OFF

DISPLAY MIPI CLOCK SIGNAL CHECKING

CLOCK COMING FULL TIME WHEN DISPLAY ON

BECOMESS OFF WHEN DISPLAY OFF

DISPLAY MIPI DATA SIGNAL CHECKING

DISPLAY RESET SIGNAL CHECKING

COMING ONLY ONE NEGATIVE PULSE AT THE INSTANT WHEN DISPLAY BECOMES ON

NO SIGNAL COMING AT THE INSTANT WHEN DISPLAY BECOMES OFF

DURING ON TIME AND OFF TIME NO SIGNAL COMING 

WIFI WCN CLOCK

OFF WHEN WIFI IS OFF

WIFI ON, BUT NOT CONNECTED àGENERATES IN 8 SECOND INTERVALS

Wifi IC Working there will be clock signal in 8 second intervals 

WIFI CONNECTED – FULL TIME GENERATES

EMMC DATA SIGNAL

CHARGING TIME VPH COIL LX SIGNAL

MIPI CLOCK SIGNAL

BACKLIGHT LX SWITCHING

BACKLIGHT LX VS BACKLIGHT OUTPUT VOLTAGE

GRAPHICS IC COIL LX 

If you are interested, Feel free to contact us 

Contact our R&D team, They will help you

https://odoxinstitute.com/support