Sorry, I was confirming all is correct, but was querying because if all is right why isn't it working!
Let me clarify.
The original problem was, the unit didn't work at all.
I repaired a burnt out, track it still didn't function, I replaced Q1, Q2, U1 and U2.
The unit began to work but LED1 would dim and the issue where you could trigger it over and over without pressing reset would occur.
When Q2 was replaced I think it was fitted backwards because LED1 wouldn't switch off completely, after turning round LED1 now turns off completely when S2 (trigger) is pressed. (With Q2 the middle pin (base) was tucked under so I just replaced like for like, see attached picture for clarification, this picture is off a different unit which I have successfully repaired, hopefully this will show how Q1/2 are fitted, when I fit them to the 2nd non working board in the same orientation I still have the multiple triggering problem.).
Q2 is currently disconnected, but the circuit still doesn't work correctly, S2 (trigger) can be pressed multiple times which trips the LED2 and Relay without the need for S1 (reset) to be pressed.
I have replaced Q2 a couple of times, 90% correctly orientated. But isn't Q1 and R3 just for illuminating LED1?
I have uploaded a video to Youtube to show the problem.http://youtu.be/K0afvM59X04
Let me clarify.
The original problem was, the unit didn't work at all.
I repaired a burnt out, track it still didn't function, I replaced Q1, Q2, U1 and U2.
The unit began to work but LED1 would dim and the issue where you could trigger it over and over without pressing reset would occur.
When Q2 was replaced I think it was fitted backwards because LED1 wouldn't switch off completely, after turning round LED1 now turns off completely when S2 (trigger) is pressed. (With Q2 the middle pin (base) was tucked under so I just replaced like for like, see attached picture for clarification, this picture is off a different unit which I have successfully repaired, hopefully this will show how Q1/2 are fitted, when I fit them to the 2nd non working board in the same orientation I still have the multiple triggering problem.).
Q2 is currently disconnected, but the circuit still doesn't work correctly, S2 (trigger) can be pressed multiple times which trips the LED2 and Relay without the need for S1 (reset) to be pressed.
I have replaced Q2 a couple of times, 90% correctly orientated. But isn't Q1 and R3 just for illuminating LED1?
I have uploaded a video to Youtube to show the problem.http://youtu.be/K0afvM59X04
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