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Quoted from Pin_Guy:Sorry, I meant to attach a picture...This is where you would connect a muti-meter to measure frequency.
[quoted image]
Thanks. And where does the other probe go? On the ASIC pin?
Sorry for the dumb questions.
(Topic ID: 199022)
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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.
[quoted image]
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?)
Quoted from Durzel:Does that mean the BR2 etc traces are ok?
It means that the path from transformer to the 2 diodes is ok.
The same advice as mentioned earlier in this topic, you will need an oscilloscope or freq.meter for this.
Check also settings for GI in menu at A.1 25 'allow dim illumination'
Quoted from zaza:It means that the path from transformer to the 2 diodes is ok.
The same advice as mentioned earlier in this topic, you will need an oscilloscope or freq.meter for this.
Check also settings for GI in menu at A.1 25 'allow dim illumination'
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.
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