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Old 27th June 2019, 07:50 AM   #411
neno70 is offline neno70
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Default pcb

good morning someone to a set of pcb to sell me: x who is interested, I have some pcb of trigger v2b and VuV2 ..

Last edited by neno70; 27th June 2019 at 07:53 AM.
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Old 29th June 2019, 07:34 PM   #412
shonne is offline shonne  Serbia
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Old 29th June 2019, 09:14 PM   #413
Luke is offline Luke  New Zealand
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Hi Shonne, is this the modified boards for 200W amp?
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Old 29th June 2019, 09:38 PM   #414
shonne is offline shonne  Serbia
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Yes...psu is for 24VAC-32VDC. Front end is 40VDC.
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Old 16th July 2019, 04:42 PM   #415
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Default help

20190716_171144.jpgI ask for your help; they are in trouble with the soft start; I built and made the tests according to the guide, everything is fine, but at the moment of lighting it, nothing happens. I built 2, I replaced the built-in but nothing, both the pcb behaved the same way and do not work, if someone to ideas or suggestions ... thank you
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Old 17th July 2019, 10:58 AM   #416
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Originally Posted by neno70 View Post
Attachment 768636I ask for your help; they are in trouble with the soft start; I built and made the tests according to the guide, everything is fine, but at the moment of lighting it, nothing happens. I built 2, I replaced the built-in but nothing, both the pcb behaved the same way and do not work, if someone to ideas or suggestions ... thank you
I solved .. what a bad luck .. a lot of integrated 5 was broken .. thanks
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Old 7th September 2019, 11:07 AM   #417
neno70 is offline neno70
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good morning . I started testing the Sheikhs and I have a problem with one of them; when I measure the voltage on irf610 and irf9610, while on 610 I have 29v on 9610 I only have 5v, some idea why, suggestions? thank you
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Old 28th October 2019, 02:54 PM   #418
neno70 is offline neno70
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Default ugs-up help

hello everyone .. I arrived at the completion of my pcb UP the tests all went fine until ukltimo, when I have to adjust the current in mv; now I can't get the 100mv as described in the guide (see photo) ..in addition the ignition protection relay connects after 4/5 seconds but at power off, it remains connected. I double checked the components, the resistances and they are all in the right place. I ask for your help, what can it be.
I was wondering if it couldn't depend on 78l12 and 79l12, on the bom, by clicking on the code to do it, I bought ua78l12 and mc79l12, are they correct? I saw that there are other versions with reverse pinout ... thanks
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Old 6th November 2019, 08:16 PM   #419
Bensen is offline Bensen  Belgium
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Default External trigger

Hello there,

I'm looking for an external trigger circuit for my 2 monoblocks and found this nice circuit in this thread.
I'ts not directly clear to me how this external trigger, needs to be triggered?
It looks like the 3.5mm jack needs a short circuit to make the trigger, am I understanding this right?

Can someone confirm or explain how this trigger needs to be operated?
Don't find any info on this here.

Thanks
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Old 6th November 2019, 10:05 PM   #420
jacek_k_wawa is offline jacek_k_wawa  Poland
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It is a bit complicated but in essence this trigger circut operates not on the constant levels (as other triggers usually do, where e.g +12 makes power on and 0V powers off) but based on short impulses generated either by monostable switch on/off on the front of your amps or by connected controller (through central pin of jack). And subsequent pulses make on and off for this trigger.
Second pin of jack is to provide information to controller what is actual state of trigger. So when trigger is in 'on' state (e.g. manually switched on using this front on/off switch) controller knows that and would send pulse only when there is a need to put trigger in 'off' state. So this ensures that there is no accidental power off when intention was actually to power on trigger.

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