Need help on Jadis JP80MC preamp

0 Members and 1 Guest are viewing this topic. Read 2059 times.

marknoir

Need help on Jadis JP80MC preamp
« on: 26 Jan 2020, 03:38 pm »
Looking for Jadis JP80NC schematic diagrams or even for a picture of power supply view with bottom cover removed. Need clear pictures to see values and components. Was sold a unit with a totally burnt power supply components. Surprisingly, unit is working somehow. Seller refused to take it back and return my money, so I'm stuck. Have fixed a lot of equipment, but here I do need some help. Thank you, Mark



marknoir

Re: Need help on Jadis JP80MC preamp
« Reply #2 on: 26 Jan 2020, 07:46 pm »
Hi. Seen all of them. Only one picture of the underside of the PS and it's the wrong vintage. Thx.

FullRangeMan

  • Volunteer
  • Posts: 19926
  • To whom more was given more will be required.
    • Never go to a psychiatrist, adopt a straycat or dog. On the street they live only two years average.
Re: Need help on Jadis JP80MC preamp
« Reply #3 on: 26 Jan 2020, 08:11 pm »
Do you have tried Jadis?

marknoir

Re: Need help on Jadis JP80MC preamp
« Reply #4 on: 27 Jan 2020, 02:44 pm »
Hi. Obviously not. Needs repair.

FullRangeMan

  • Volunteer
  • Posts: 19926
  • To whom more was given more will be required.
    • Never go to a psychiatrist, adopt a straycat or dog. On the street they live only two years average.
Re: Need help on Jadis JP80MC preamp
« Reply #5 on: 27 Jan 2020, 02:48 pm »
I think they may have interest in help you.
When a friend Almarro broke the Japan factory gently send us the schematic.

marknoir

Re: Need help on Jadis JP80MC preamp
« Reply #6 on: 27 Jan 2020, 03:03 pm »
I did contact their US distributor. So far nothing. From what I have heard they do not give out schematics, they want you to send the unit to them, and repairs are not cheap...

marknoir

Re: Need help on Jadis JP80MC preamp
« Reply #7 on: 31 Jan 2020, 06:31 pm »
All fixed! Works like new! This thing sounds great. I’m very proud of myself )))




Tyson

  • Full Member
  • Posts: 11112
  • Audio - It's all a big fake.
Re: Need help on Jadis JP80MC preamp
« Reply #8 on: 31 Jan 2020, 06:44 pm »
All fixed! Works like new! This thing sounds great. I’m very proud of myself )))


Nice.  What was the issue?  Just a cap that needed replacing?  Or?

marknoir

Re: Need help on Jadis JP80MC preamp
« Reply #9 on: 31 Jan 2020, 07:23 pm »
Just this cap. But it took some research to figure out the value/voltage. Then I had to rebuild the board, install posts etc. Checked all components, especially electrolytes. It has now a clean bill of health from me.  Replaced a few tubes as well. Amazingly quiet all tube MC phono.