Harrison type "K4000" (K 4000) MKII 2x1000W/4ohm

[tiefbassuebertr]

Hello Andreas,

I have my own drawn schematic of the MK-II version.
This means the limiters and drivers are no longer ceramic boards.
These gave many problems.

But the MK-I and MK-II schematics are the same.
When I'm at home I will sent you this schematic.

I'm new here on this forum. I I can help somebody else
with this schematis I will post it here.

Greetings, Roland Huisman

I guess, that only the schematic topology between MK-I version and MK-II version is the same. But the values of the discrete devices on the ceramic carrier board-module is different. Befor I make new developement, I want to test the MK-II modules.
Where I can get the newer driver modules ?

 

[tiefbassuebertr]

new driver modules still wanted.

 

[tiefbassuebertr]

now news about the second version of driver modules?

 

[tiefbassuebertr]

Supplier of the second driver module version still want to know.

 

[tiefbassuebertr]

Front end modules without ceramic carrier board still needed.

 

[tiefbassuebertr]

From where I cxan get front end modules of the MK-II version?

 

[tiefbassuebertr]

any news?

 

[fnhcel11]

Thanks to provide!!!!!!!!!!! Thank you very much!

 

[fnhcel11]

Thanks to provide!!!!!!!!!!! Thank you very much!

any news?

 

[fnhcel11]

any news?

Thanks to provide!!!!!!!!!!! Thank you very much!

 

[dtek]

Thank you.

 

[SubSoniks]

Harrison K Series Schematics

Harrison K Series Schematics.
Not included are the original Hybrid card schematics listing the IC types, Roland has them listed as TL072, can anybody confirm these are the right ones, ie not ne5532?

 

[SubSoniks]

Harrison K Series Schematics

A few more:

 

[SubSoniks]

Looks like the driver chip on the hybrid is most likely a tl071, due to power being supplied on pins 4 and 7.

 

[enl]

HARRISON K2000 module

Hi, I have a HARRISON K2000 amplifier that I think has the photo module broken. Someone can tell me which module this is and where I can buy it because I can not find it anywhere.

Thanks in advance

 

[SubSoniks]

Sorry to say that the modules were only made by Harrison for this amp and production stopped when they went bust, your only real option is to try and repair the module, but not easy as there is no reliable info as to what the components actually are.