Hi,
Toshiba sat P300 displays on external monitor but not on Lcd Panel.
Checked LVDS connector (pins 2 & 4), found LCDVCC=0volt.
Traced supply voltage of LCDVCC, found INT_LVDS_DIGON(i.e L_VDD_EN) signal absent, which is issued by NB to Q36 (see attached file).
Supplied 3.2V directly to LCDVCC pin, got white screen but after reflowing graphic card and northbridge, retried with 3.2V shunt and display came on Lcd Pannel.

Need help on the following questions :
1*-Is there any risk to use a regular shunt to supply LCDVCC pin with 3.2V, and solve display problem ?
2*-Is there any way to fix L_VDD_EN signal fail, as reflowing didn't help ?

Platform : DABL5MMB6E0 REV:E

Thanks for a prompt reply.

Still waiting for suggestions or confirmation from any of the 27 viewers of this topic or masters , whether any risk exists when supplying LCDVCC pin with a regular 3.2VS shunt s to solve display problem?

Thank you

You can it; LCDVCC need to cut off (L28) from circuit, but more correct change NB (not reflow)