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820-00165 No Image

tlough75

tlough75

Member
Happy Saturday! I got in an 820-00165 with what I thought was no backlight, turns out there is no image. Looks like I am missing EDP_PANEL_PWR which is at 0 volts. This board had some corrosion around the SMC as well as broken traces. Wouldn't Power on at all until I repaired all of the damage. When I plug in a USB Pen drive I get a solid light and nothing else. also nothing from external monitor via TB.
 
Last edited:
2informaticos

2informaticos

Administrator
Staff member
Reball SMC if corrosion near it.
USB mouse still gets light if disconnect/reconnect it?
Always better to test with pendrive OSX; if flashes, there is USB activity for sure.

3V3 must appears in the first seconds at pins 18/19 of J8300; even without LCD connected.
If LCD is connected, DP_INT_HPD must go high.
 
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