Getaway HS2 Lamps not working, Assistance needed

[flippnaussie]

I have a been playing with my HS2 and noticed that the upper and lower green traffic light aren't working.

I have think I have checked everything but can't seem to get them going.
-changed globe.
-checked wiring contacts.

help...?

Simon.

[MartyJ]

Are these in playfield inserts or the traffic light assembly ones?
In the lamp test there should be specific test for the lamps.  Could be a row or column but simple things first.  Try a working globe with working socket in them and rerun test.

[flippnaussie]

Update,
I am stupid.....
I was checking the lamps with a broken LED, so thats two faulty LED's in my play field. Swapped with good ones and everything is ok again.

Note to self check things properly
Simon.

[Homepin]

Update,
I am stupid.....
I was checking the lamps with a broken LED, so thats two faulty LED's in my play field. Swapped with good ones and everything is ok again.

Note to self check things properly
Simon.

....are the LEDs "direction sensitive" IE  - will work only one way around?

[flippnaussie]

Good thinking Homepin,
But no, I have the pinball center no-flix type, they have a large type LED, which I have never seen before, a rectifier circuit and capacitors.
I was going to disassemble and check them out.
This makes it three that have failed. They do have a life time guarantee, so I will have them replaced as well as order some spares.

I'll post some pics when its in bits. The first one was a burnt out PCB, I think that was my fault.... power supplies can be fun.

Simon.

[Retropin]

Is that your lifetime, lifetime of an ant or lifetime of the LED guarantee?

[flippnaussie]

Well the LED is a pretty simple assembly.
A pair of SOT-23 diodes act as a rectifier, the resistors stop the high current from blowing up the lower voltage LED. The capacitors smooth the
input  to make the DC voltage on the LED look more like a globe (as they turn on and off quicker, Globes glow).

Jut need to do some calculations and buzz out the circuit and see what causes the failure.