Quoted from Pin_Guy:
Sorry, I meant to attach a picture...This is where you would connect a muti-meter to measure frequency.
Thanks. And where does the other probe go? On the ASIC pin?
Sorry for the dumb questions.
Quoted from zaza:
Now a scope would come handy to see if there is actual a 100/120 Hz signal.
Another continuity test than : )
With machine'OFF' and J101 connected.
On Powerdriverboard, measure continuity between anode D38 and anode D3.
Should be close to ZERO Ohm.
Just did this on my TZ and my multimeter buzzes when I touch a probe on D3 and D38, per the image posted above.
Does that mean the BR2 etc traces are ok?
Next test is one probe on TP4, other one on that pin in the ASIC? (U9-71?)
Yup, that's already set to YES. I'd realised that this can be a common mistake to make
A single incandescent bulb in the GI also doesn't dim. I don't know if it should when all of the other bulbs are LED?
Will try and get an oscilloscope/freq meter. Thanks again for your help.
Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside