Sony Vaio VPCYB3V1E Płyta MBX-244 TUCANA-BR obraz tylko na zewnętrznym monitorze

Witam

Mam do naprawy komputer Sony Vaio VPCYB3V1E Płyta MBX-244 TUCANA-BR w której usterka polega na tym że obraz wyświetlany jest tylko na zewnętrznym monitorze. Brak jest napięcia zasilającego matrycę LCDVDD prawdopodobnie spowodowany brakiem sygnału na n1. U6 PCH_LCDVDD_ON. Posiłkuje się schematem od płyty na Intelu. Tam ten sygnał realizowany jest przez PCH. A jak sytuacja wygląda w konfiguracji AMD?

Reflow bridge PCH1.

Its AMD version of mobo, there is FCH1 218-0792006. I already replaced this IC, but still the same.

Measure the voltages on all pins of L2, U42.

U42: D-3,3V, S-3,3V, G-9V
I cant find L2, but found C167 and its 0V on it. On this schematic C168 should be connected to ground on one side, but in my board is no connection between C167 and ground. Maybe it is difference between Intel and AMD version?

You have to find L2 which is probably broken (should be the same size of a common resistance).

Unfortunately i can't find this coil on mobo. Whats more i can do?

It connects with a wire as the green line (insert protective coil with the same value L2).

I put this line across the coil, but still no picture on LCD

If C167 is 1.8V?
Check all power supply voltages PCH1 (uses capacitors to take measurements).

The customer took the computer. Faults did not fix. Thank you for your help.