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Q1 and Q3 are a two-transistor relaxation oscillator. Q2 kills the oscillation when the solar panel voltage is high.
It would help a lot if you rotated the whole circuit 180 degrees, so the negative (0V) rail is along the bottom and the battery is on the left.
Can you redraw the circuit like that, and mark the voltages on the collector and base of Q2 in darkness (with the battery charged) and under a bright light, measured relative to the 0V rail (Q2 emitter, etc). Also upload a photo of the board.
Q1 and Q3 are a two-transistor relaxation oscillator. Q2 kills the oscillation when the solar panel voltage is high.
It would help a lot if you rotated the whole circuit 180 degrees, so the negative (0V) rail is along the bottom and the battery is on the left.
Can you redraw the circuit like that, and mark the voltages on the collector and base of Q2 in darkness (with the battery charged) and under a bright light, measured relative to the 0V rail (Q2 emitter, etc). Also upload a photo of the board.
So is it working now?
Bob
I have found that the cheap $1 garden lights at walmart usually stop working because of this. But for some reason I continue to purchase them...I've fixed a loose connection on the solar panel,...