Missing diodes near the HDMI port. Can anyone ID them?
I have some missing (what looks like) diodes under the HDMI port.
They are small, black rectangles. There is a line on them like a diode. There is a small marking on them that looks like a "7"
There are 8 of them in total on the board. They are on pin 1, 3, 4, 6, 7, 9, 10 and 12.
I am missing the ones on 1, 3, 7, and 9, although I think all 8 of them are the same.
They are marked "EG###" on the silkscreen.
Can someone ID?
EDIT: I found the schematics and they show part number M1015860-001 but Googling the part number returns nothing useful.
I would rather not have to buy a whole broken motherboard to salvage these parts if I can help it.
Are you certain there are supposed to be diodes there in the first place? I've seen perfectly working motherboards with seemingly missing components.
由 Yves Lauwereyns 完成的
Yes, these are TVS (Transient Voltage Supression) avalanche diodes that are for clamping incoming ESD surges from the HDMI port, dumping excess current to ground in the event of an ESD hitting the HDMI port. They are protection diodes.
由 Chris Meilleur 完成的