Vehicle power windows and other electronic switch problems

you may have a bad squelch pot on the radio. try turning it fully in one direction an back in the other direction. it also could be that the Pot is dirty get some contact cleaner and open up the radio and squirt a very little cleaner into the open spot of the Pot. then rotate the know several times. if you do not have something like CRC QD Contact Cleaner you can get it in a good hardwood store like ACE or TrueValue, and even Home Depot. you can use only 91-99% Electronic Grade Isopropyl Alcohol, do not use the 70% Isopropyl Alcohol.

try a spray can of tuner cleaner, test it first on a small part of the piece first with a rag if it doesn't eat the plastic yer good 2 go, now for the majic show simply set item on floor and from about 2 feet away gig the item a 3-5 second blast. i used to do this trick when i fix a car radio or heater control. I would tell the customer it's going to cost $20, i would spay it and tell them it's fixed and thats $20 please '' you didnt do noth'n'' hop in your car and see ?
now this only works about 80% of the time but it's a real crowd pleaser when it dos.Jay the pool pump motor repair guy longwood fl 32750
CRC Lectra Motive Electrical Degreaser Cleaner 19 oz Size Aerosol Can CRC QD Electrical Contact Cleaner 11 oz Size Aerosol Can RadioShack Control Contact Cleaner and Lubricant CRC 11 Ounce Aerosol Contact Cleaner

The volume knob is dirty. Behind the face of receiver the "pot", (as they are called) needs sprayed with contact cleaner. I use CRC QD contact cleaner. If the volume is a slider your can use the straw type devise for pin point spraying in the slider slot with receiver off and unplugged. After spraying work the slider back and forth to distribute the cleaner inside. If you have to remove the cover for a rotary "pot"spray while working the dial. Hope that helps..

Most likely the mode switch in the VCR has either gone high resistance, and will need to be replaced, or it is probably dirty, thus it can be cleaned using electronic cleaner (assuming the mode switch is a rotary type encapsulated in a plastic casing (some VCRs incorporated a sliding mode switch - such as National in the early 1980s) - a spray cleaner/lubricant may do the job - not expensive - this cleaner should be available from most leading electronics/hobby stores off the shelf).

The downside is the cleaning of the switch (which should be under the VCR mechanism and soldered to the motherboard) cannot guarantee long-term reliability, so the switch will have to be replaced (this could be tricky being Philips/Magnavox) - but try cleaning it first - this is cheaper and you don't go without a unit for a long time. I hope there are no tapes stuck inside the unit.

In this case, I strongly recommend that you try and clean the mode switch with electronic switch cleaner - it comes in an aerosol spray can and is not expensive. You may need to look around for the appropriate type of cleaner as there is more than one available. CRC is the best bet according to technicians. CRC is a spray electronic cleaner/lubricant - so it will also lubricate the switch contacts as well as clean and remove oxides. Do not use supermarket sprays such as WD-40, or automotive sprays such as ArmorAll.

I do not recommend removal and disassembly of the switch itself to clean it unless you are tech. savvy with several years' experience, and you have some understanding of its alignment in relation to the mechanism. If you are careful, and with the unit unplugged from the wall, you can remove the VCR deck to gain access to the switch on the board and carefully apply the abovementioned cleaner, rotating the switch in both directions gently, to work the cleaner into its contacts. Let it sit for a few minutes, then re-fit the VCR deck, and reassemble the rest of the unit. Plug into power, and test a tape. This simple method should work (you won't need to remove the motherboard to do this, just the front panel and VCR deck) and it only cost you a can or two of contact cleaner at most.

You should not need a new unit.

buy CRC electronic contact cleaner that is plastic safe from home depot in their lighting/electronics dept. spray into female steroe jack holding camera upside down with straw slightly inserted. Do not spray a whole lot. Then let dry a few seconds and then spray the CRC plastic safe multi purpose precision lubricant. just a little and then plug the male end into jack. You might want to hold camera upside as well since you do not want oily residue inside tape transport. Push in a couple times then remove. Wipe male end with clean paper towel and spray that end then re-insert. Put on headphones and check to see if the problem got fixed. Check that little round bolt that holds it (female stereo jack) into place and tighten if needed