Those are from the era of the MD series consoles - they used common building block subassemblies so you'll see that EQ in several console variants with similar looking modules and controls... the EQ's and amplifiers sound pretty good. The electrolytic caps may need to be changed out... need being defined by either not making original performance spec so you NEED to replace parts, or by just wanting better performance in which case it's a choice rather than a need... as far as changing out film caps, resistors, amplifiers and so on - unless they are failed or broken all that is optional. I have some docs for these consoles at...
http://technicalaudio.com/pdf/Philips/I do not repackage or service these much any more... partly because I have other things to do and partly because "I charge too much" whatever that means... as in "I don't know how many real people you deal with but no one will pay that much for..." or "I'm not Mutt Lange so what do you charge normal people" ... it's pretty funny... and sad... but my plumber charges me more than my rate and I don't make those kind of statements to him... so anyway - go to the link, there are some docs that might be close, find a tech and have fun