Lm495 Mb 11269-2 Schematic Download |link| Fixed -

Check the power button pin on the keyboard connector. The voltage should drop from 3.3V to 0V when pressed, then return to 3.3V. Step 3: Analyze the Power-Up Sequence (S5 to S0 States)

: Find the SPI Flash ROM chips (usually an 8MB or 4MB SOIC-8 chip). Check pin 8 for Lm495 Mb 11269-2 Schematic Download Fixed