How to modify Mackie Onyx 1640 (modif pre fader)
By Larsen sharp 29/01/2008
Many are the owners of this table who said "damage not to be able to record with the inserts the EQ Perkins and the filter crosses low". And well here how to make.
Matos necessary:
* a good soldering iron
* cutting pliers
* flat-nose pliers (small)
* a grip to be stripped
* a Phillips screwdriver
* good conducting mono cable (16 pieces of 70 cm min)
* sandpaper
* retractable sheath thermo
As a preliminary, it is necessary to unscrew all the screws below and on the side like on chart DB25 (behind)
1 - The modif one will consist to cut the arrivals of signal on chart DB25 and to recover the signal right before the fader using our cables (which one will weld onto the cut cables, cable stripped on the photograph). On this image one sees that it is slightly necessary to raise exit DB25 you can now cut out about on the level of the red scissors (keep a good length of cable on the basis of the top). You can cut of right-hand side on the left the first group of 8 wire, the first on the basis of the line will be the arrival of way 1 and so on until sixteenth as indicated on the image
2 - Now you will be able to weld your cables on both sides. See where to weld onto the printed circuit on the photograph. The small diagram him, shows you on which stud to fix the cable. CAUTION: to slightly sandpaper the stud before welding, because a product is deposited to prevent the welding from taking. Now, you can weld onto the cables which you cut while having put the sheath thermo as a preliminary. Attention, it is necessary to pass your 16 cables in the small space by which all the tablecloths pass in order to be able to give the cap.
3 - You finished the modification, see on the image what your console must resemble and test the ways now one by one to see whether all is well in contact if possible with the dismounted caps if...
Once that you are sure, reassemble the caps and that is there, your Onyx is perfect!
