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Jura Imprassa Xs9 Does not turn on

MoF

April 24, 2023 03:55 pm

Unregistered

Hello,

my Jura no longer goes on.
The red LED is lit but when pressing the switch, the LED flashes 5 times it makes 2 times clack and nothing happens, on the display is shown nothing.
Had anyone an idea where I can start troubleshooting? I have already disassembled and reassembled everything, at the thermo fuses after the first clack 230v come on and after the second the voltage is gone again.
The clack comes somewhere behind the circuit board.

LG, Mo

Guest

April 26, 2023 04:41 pm

Unregistered

Hello again.
I had before I created this thread a new Traffo ordered because I read somewhere that it can be.
Have it just exchanged and the machine runs again.
Now I have out of curiosity the old Traffo times connected to a power supply and measured, it came neither 9v nor 15v through.

In another forum I got the tip that a few components can be kaput, I still give a short explanation even if that was not the error.

For information for all who have the same problem and are looking for the right components.
Please correct me if I am wrong somewhere!
There are 4 diodes and 2 film capacitors which are not so easy to order, because firstly one of them is coded and I could not find out the capacitance, but I assume it is 100nF, and secondly the other is a MP capacitor. As far as I found out, they don't make them like that anymore, you can only find MKP capacitors. I don't know if this makes any difference, because I'm not an electrical engineer but just a hobbyist.

Replace the diodes 1N4004 with the better 1N4007, these sit as far as I'm right directly on the 9V connector that comes out of the transformer, 4 pieces.
The FoKos are the following:
(c9-u1) x2 MKT 100nF 305v +-10% -40°/105°/56/B
MP (or MKP) x2 150nF +-10% -40°/105°/56/B
These sit on the second smaller board the 100 was blue and the other gray with me. I do but really hard to find the right because always a factor is not right.

However, I do not guarantee the correctness of my statement, so tinker at your own risk.

LG to all.