LDme wrote:i also have Quiesent Current check - 0mA
Blown fuse in your meter?
LDme wrote:oh crap, another problem
one of my mini3 is broken
i'v accidentally touched battery to wrong side on battery contacts - someone can tell me - what did i blow?
amb wrote:Do you mean you had the battery connected in reverse-polarity? If so, usually the D4 zener diode would fry.
LDme wrote:how can i check it? i have 2 mini3 assembl pcb - but i forget where it was happend
(& what it for (D4)?) in couple words.
amb wrote:LDme wrote:how can i check it? i have 2 mini3 assembl pcb - but i forget where it was happend
Measure the resistance of D4 (while battery is removed) in both directions. You should not read a short circuit, or very low resistance readings.(& what it for (D4)?) in couple words.
amb wrote:Are you sure those readings are 84K and 100K ohms rather than 84 ohms and 100 ohms? Typically when a zener dies from being driven backwards with too much current it goes low resistance.
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