Lenovo power on no display solved 

Excellent explanation. The only problem is the clarity of the video

more video please you guys is awesome!!! i learn a lot

Great job! But why is the display working, when you have removed the supply coil and mosfet?

thank you

Sir, what is q70 next to the screen Cable? Mine seems burned

Hello sir I need your help same problem with my laptop as well as same Lenovo model

Hello I’m repairing an no display also for Lenovo G400 part no. LA 9632P. I followed your voltage checking steps and all the voltage is present even the ram coil and graphic. So jumped to Lcd connector, 3vs_cmos and 3vs is present, only the lcdvdd_conn is not present. I traced back and locate at U72 Vout (lcdvdd_conn) also no voltage 0.00. U72 has input voltage 3vs. Is U72 defective no vout and I don’t know what should be the vout voltage. Can you help me? Or there is a remedy for this? Thanks you.

Hey Adi I m Jayganesh I have same motherboard here But problem is no charge no power What can I do?

Is this graphic conversion?

Can we remove coil of gfx in all mobo to eliminate it ?

how can test MCU through multimeter ?

This seems to me an easy UMA conversion... the only gpu working is now the integrated intel HD

Even need to change board id