One of the reasons I deploy a rack with free access at the back. Once a while, I just disconnect all items, remove them, clean them and reconnect. I also use that opportunity to clean the floor and walls where dust and dirt would invariably have accumulated. Maids are a complete no, no.
There are a couple of items that may be of interest to members.
1. 3M India makes something called Scratch Proof Wipe. This is a small piece of micro-fibre made of polyster and polyamide. Good for 100 washes and pick up dirt very well. This is to be used dry.
2. All paints shops will have something called Gada cloth. This is a cotton cloth that comes with large weaves. This could be used inside racks that hold the equipment. You can use a small amount of cleaning spray. If you racks are made of wood, the best is to use wood polish.
3. Waxpol makes something called 'Silicon Liquid Polish'. This will be available from shops that sell parts for automobiles. I started using this for cleaning water taps, but later found a better liquid for that purpose.
Very tiny amounts of this can be used on top of players and amplifiers for a good clean. This should be poured on the body under any circumstance. Rather wet the cleaning cloth with a few drops of the polish, and carefully wipe the body. Make sure you go nowhere near vents in the body.
4. In Chennai at least, all electronics repair shops use something called MaxClean. This is a white liquid and is quite good at removing stains on top of bodies. The thing stinks a lot, and I don't have much belief in the product. The Waxpol polish is more dependable.
5. You can use IsoPropyl Alcohol (of the best kind) in, again, small quantities to clean contacts. Just ensure that you use a branded variety. The best I have come across is made by
Qualigens Fine Chemicals and the product has a trade name that is Porpan 2-OL.
There has been a lengthy discussion on this before and please search the forum for details.
Inside the amplifier, TV and other items, the boards will actually have a fine dust settled. I heard one TV repair man say that the dust is good as it protects the circuitry. Not sure how true this is.
Cheers