What Cause a Laptop LCD Screen to Go Dim?.Most Common Issue everyone facing with The laptop LCD screen.

For another article Click Here.

THERE IS  2 SECTION 

ONE IS INVERTER SECTION.

SECOND IS DISPLAY SECTION.

PIN DETAILS OF INVERTER 

PIN 1    –     INVERTER   VIN   VOLTAGE 

PIN 2     –  Von  INVERTER ON OR CCFL ON VOLTAGE. (CCFL- COLD CATHOD FLUOROSCENT LAMP) 3.3V SHOULD PRESENT AT INVERTER BOARD ONLY WHEN DISPLAY IS PRESENT IN THE SCREEN.

PIN 3     –  Vadj   – BRIGHTNESS ADJUSTMENT = 2.5VTO 3.3V SIGNAL IS COMMING FROM I/O CONTROLLER.

PIN  4     – GROUND

This article Question – What Cause a Laptop LCD Screen to Go Dim?

FAULT FINDING What Cause a Laptop LCD Screen to Go Dim?

IF INVERTER SECTION IS FAULTY, CONDITON IS   DIM   DISPLAY   OR DULL DISPLAY.

ISOLATING SCREEN

REMOVE   CCFL   CABLE    FROM THE   INVERTER BOARD. THEN CONNECT TESTING SCREEN CCFL TO INVERTER   BY KEEPING DISPLAY CABLE UNIT WITH ORIHGINAL SCREEN ONLY. THEN SWITCH ON THE LAPTOP. WAIT TILL DIM DISPLAY   IS PRESENT IN ORIGINAL SCREEN. NOW IF TESTING CCFL IS GETS ON MEANS ORIGINAL SCREEN CCFL IS BAD. THEN REPLACE SCREEN OR CCFL OF THE ORIGINAL SCREEN.

14,0 LED ALTERATION METHOD USING IN LAPTOP SCREEN Video Bellow

NOTE — If all people want Free bios get hold of You want to need Free registration first. Form individual establish and e mail deal with. You may Get one hyperlink on mail . Click on on on hyperlink and Set a New Password.When You get hold of the Free file comment there then i am going to confirm You are the energetic individual. In some other case unknown individual i am going to Delete. Or when You register the e-mail ship me your individual establish and e mail on Wtsapp no+919015823748. and Instructed me Don’t Delete this Email correspondence id individual.

For My Youtube video Click Here