6 hours ago
Hi guys. Have a Pine A64 LTS (ver 1.2) board that won't turn on.
If I apply 5V to the barrel jack - it takes nothing at all as if contact is broken somewhere though I have 5V on both GPIO rows and quite a few components around the pcb.
Tried replacing AXP803 and even the CPU (I solder well) with known good ones from other Pine64 LTS - nothing changed.
If I apply 3V3 to GPIO 3V3 pin - power LED lighs up and board takes around 180 mA.
No shorts were detected on the board anywhere and seemingly no components are missing.
It looks like there is a fuse on a 5V rail that is blown, but I can't figure it out, so any ideas are greatly appreciated ?
If I apply 5V to the barrel jack - it takes nothing at all as if contact is broken somewhere though I have 5V on both GPIO rows and quite a few components around the pcb.
Tried replacing AXP803 and even the CPU (I solder well) with known good ones from other Pine64 LTS - nothing changed.
If I apply 3V3 to GPIO 3V3 pin - power LED lighs up and board takes around 180 mA.
No shorts were detected on the board anywhere and seemingly no components are missing.
It looks like there is a fuse on a 5V rail that is blown, but I can't figure it out, so any ideas are greatly appreciated ?