Hi!
The patient is BDM-030 with three blinks of death. There is evidence of one analog sensor being replaced, since its casing is black, not orange, and there’s remnants of a bad solder job on the back side, as if I myself did it. The caps near the analogs are intact, not shorted either, there are no shorts to be found in any obvious other spot, like across the + and - of the analogs, or near the charge IC. The device does not charge, however, and even though the battery is around 3,6v, that voltage is there at the entry of the component in question. On its output it drops to 1,33v though. When I check for continuity, there is none, both ways. I’d assume there is a fuse and a diode in this area, but I can’t be sure which is which. Any help or links to relevant schematics would be appreciated. Thanks!
Hello, no diode or fuse here. Normally, when the controller flashes orange 3 times, it means the battery is not connected. If you plug it in normally, the controller works.
But the thing is the controller blinks with the battery connected, and there is battery voltage on the output of the Dialog chip. When connected to USB, the battery is not charging, and the dialog’s output voltage is at most around 4V, where it should be a nice clean 5V from what I gather.