I wood like purchase macki mixer consoles

I've found Mackie to be quite helpful when problems arrise. Their consumer support link is-

Contact Support Mackie

The transformer itself will have the codes you need to replace it either printed on it or on a label stuck to it. Mouser should have what you need.

well depending upon the mixer and windows version you may have issues. Windows 8 is a 64bit platform, your mixer may only have 32bit drivers (x86). Try visiting the mackie forum for your mixer.

You'll find it here http://www.mackie.com/products/profxseries/pdf/ProFX-OM.pdf

Please view videos on YouTube. Search for "mixer setup". There are a bunch, and the information and techniqes are the same for almost any of the analog mixers. You might refine the search to Mackie mixers.

use the xlr (3 prong) main left and right outputs of the board. get xlr to 1/4 inch cables. one end will be 3 prong, to plug into the mixer, then the other end will be a mono 1/4 inch plug, like a big headphone plug. Then you have to get a dual mono 1/4 inch to stereo 1/8 inch adapter and plug it noto the line in. if there is no lone in, but a microphone jack instead, you will get a mono signal instead of a stereo signal. in this case, just use 1 channel of the mixer, instead of both of the stereo outs, and use a single mono 1/4 inch to mono 1/8 inch adapter.

the xlr to 1/4 inch cables can be purchased at a music store. the 1/4 inch to 1/8 inch adapters will probably need to be purchased at radio shack.

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how u hook up a mixer

If you are looking for the service information for a Mackie 1202VLZ, contact Mackie. I believe that you can purchase it directly. They have contact information on-line.

Dan

If all other functions work for those channels, the most likely problem is the fader itself. These can fail and operate more like switches rather than faders. Without witnessing the behavior, I can not state that for sure. While these mixers are not the hardest to work on, they are time consuming. The faders can be purchased from Mackie directly. If you need to have this repaired, any shop that repairs audio gear should be able to erpair this for you. Where are you located?

Dan