Zaccaria / Hanatrex Power Supply

[Etienne MacGyver]

Its not having something connected ?  in that case it could be normal.

I can check the outputs of my spare PS tomorow as comparation.

[Etienne MacGyver]

Did the measurements for you today..

The connector has 6 pins:
1= -5V
2= +5V
3= +12V
4= unregulated - rectified output
5= Ground
6= Ground

Pin 1 & 5-6:



Pin 2 & 5-6:



Pin 3 & 5-6: (11,81)



Pin 4 & 5-6:



Depending on the game you want to power, you may need to replace the 7905.
i mean, if the board you want to run in there does not use any -5v, you can just leave it like this.

What happens if you put a load on the -5v line ?

[Etienne MacGyver]

Just stumbled over a pic that shows that the TO3 version of the 7812 is replaced by a TO220 version.

[Digimon]

I've read at CONRAD:

"Achtung! Es kann vorkommen, dass bei Negativ-Längsreglern ohne Last am Ausgang die gemessene Spannung vom Sollwert abweicht. Eine Belastung ab ca. 10 mA beseitigt diesen Effekt, und die gewünschte Ausgangsspannung stellt sich ein."

that means:
"Attention! It is possible that in negative controls without longitudinal load on the measured voltage output from the setpoint. A load from about 10 mA abolished this effect, and the desired output voltage is adjusted."

so I think when there is load it should be ok.

I am on cleaning the CAB right now, and fixing the Hantarex Chassis, (looks like the power supply).
I hope to put it together soon.

[ckong]

Thanks Digimon, for pointing me to this topic, I have totally missed it, but it is very useful for me. Thanks Etienn,e for the info and photo´s.

I´m a total electrical noob, so I hope that you don´t mind asking:

1. on reply #9, first photo: where is the ´rainbow´ cable for?
2. reply #20, first photo: how is this circuit board called (PD board?) an what does it do? It´s not present in my Vanguard cab.
3. I know what a transformer is, but what is an isolation transformer?

[Etienne MacGyver]

Thanks Digimon, for pointing me to this topic, I have totally missed it, but it is very useful for me. Thanks Etienn,e for the info and photo´s.

I´m a total electrical noob, so I hope that you don´t mind asking:

1. on reply #9, first photo: where is the ´rainbow´ cable for?
2. reply #20, first photo: how is this circuit board called (PD board?) an what does it do? It´s not present in my Vanguard cab.
3. I know what a transformer is, but what is an isolation transformer?

1. thats the powercable that goes to the MTC 900 Monitor
2. thats the powersupply board (the other is just the transformer and fuses)  

I suspect that it was 1. not sufficient for the use they wanted to use it for, 2. broken and removed for that reason.

As you look good, it only takes the 220 volts line to the new switcher that you have in there, and they cut the other wires.
another posibility is since also you rainbow cable was not connected, is that the transformer is dead, and they replaced it complete.

Anyway, as stated in the other thread, i got a complete spare set (harness, psu, transformer and fan) so if youre interested, you can have it.
I would like to have the harness that is inside there now to rebuild though.

3. An isolation transformer is nothing more than a normal transformer but it does not transformate, it just separates the power from the mains.
so you have 220 going in and 220 going out. mainly used for safety reasons.

http://nl.wikipedia.org/wiki/Scheidingstransformator

[ckong]

Thanks Etienne, I gladly accept your offer for the spare set.  Maybe we can exchange it for my harness during our next Eurocade meeting.

[PaulSwan]

This is a great thread - did you spot the lovely unconnected 110V input tap on the transformer 
Paul.

[Etienne MacGyver]

I guess you are reffering to this pic:



Because if you look at the side where the wires are at the transformer, they dont show.

The voltage selector in there is only connected to the 200-245 range
so if you make a 100 range selection, its not working  

it could be rewired ofcourse if there are indeed tabs on the transformer, but mine just has the wires comming out instead of tabs..
and i dont see any 110 volts input wires..

[PaulSwan]

I'm hoping it's in there somewhere...

[Etienne MacGyver]

I hope that too for you, otherwise you need some step up transformers 

[PaulSwan]

My warehouse here has a 240V commercial supply 
But yes, outside of my own place I'll have to figure something out. I have a few step ups to start with.
Paul.