Summa D120 fuse place

[FaneDuru]

Our Summa D120 cannot be powered ON. The cable is OK, but something connected with the cutter itself looks to be.
So I am looking for its fuse and I cannot see it. I was expecting to be somewhere ease to see it but I do not see any.
I replaced the plastic cover on the power connector side and no fuse there also...

Thanks in advance!

 

[FrankW]

The fuse on a D120 is near to the power socket/power switch (see attached picture).

Unfortunately, if a SummaCUT can't be powered on, mostly the power supply itself is the reason. I'm nearly shure, if you measure the fuses, they will be ok.

 

[FaneDuru]

The fuse on a D120 is near to the power socket/power switch (see attached picture).

Unfortunately, if a SummaCUT can't be powered on, mostly the power supply itself is the reason. I'm nearly shure, if you measure the fuses, they will be ok.

Thank you!
I was not looking for such an appearance...
The fuse is not OK. It is burned but it is very improbable to be burned without o short-circuit after it...
I intend to solder a very thing wire just to see if it is immediately burned (or not...) and identify the power supply. If I can see any swollen capacitor or diodes I can measure maybe I will try to repair it. If not, (most probably) we must buy a new one.

Now, can you suggest a site selling such a device?

Tanks in advance!

 

[FaneDuru]

I did as I said and the fuse was immediately burned (with a small flame)...
So I need to check the power supply.
If somebody is able to recommend a site where such a device is sold, this will be much appreciated.

Thanks in advance!

 

[FrankW]

You you have a summa dealer around? They should have it on stock. Providers as www.digiprint-supplies.com have them too.

 

[FaneDuru]

You you have a summa dealer around? They should have it on stock. Providers as www.digiprint-supplies.com have them too.

No, we do not have a summa dealer around...
I tried to repair the damaged power supply device. I found a 2.0A ULTRA-FAST RECTIFIER in short-circuit and two resistors presenting signs of over heating.
I replaced the rectifier and the power supply works. I tested with (1.5 A) and without consumer.
Its output is 30V dc loaded or not. But I measured some times the overheated resistors and their values are different measuring it from time to time, meaning that I cannot count on them any more. Unfortunately they have been so burned that all the marking rings disappeared. The electrical drawing is complex and it is very difficult to deduce/calculate their initial value...
I took a power supply picture and if it happens somebody still have the damaged one or he is able to look at it on the machine I will very much appreciate to receive that resistors values or their marking ring colors...
I attach the relevant picture positioning the necessary resistors...

Thanks in advance!

 

[FaneDuru]

Not necessary information about resistors, any more.
I found on the board a Zener diode (5V) and I calibrated the two resistors to obtain on it that 5V.
I mounted the repaired power supply and our machine works perfectly.