- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Some things I would check are do you have blue tooth in operation. Do you have any form of michrophone in the cab as it sounds like a feed back problem coming through your speakers. Talk to a radio techie to see what he thinks
I have a Opel Astra 1.6 2005 , when I switch off the car , switch off the radio the power or radio comes on by itself , the dash lights up the cabin light comes on including the radio , then i switch it off 20 minutes later all comes on by them selves leaving me with a flat battery in the morning , while driving I drive switch off the radio then 15 minutes later radio comes on by itself why anyone know how to fix
THANK YOU Guest (4/10/08)!!! That was exactly what I needed! We have had our system for 4.5 years and suddenly, the FM feedback on everything, but DVD and Radio! Your fix helped. Once I set all my presets (at least the current one) to a clear station, the feedback stopped. Hallelujah!! We can enjoy this piece of junk once again! ;) Amanda - San Antonio, TX
A high pitch sound while connected in the house is either a problem with the reciever or you are picking up interference from somewhere. However, the high pitched noise when using the unit in a car (especially through an aux. connection), is caused by the alternator of the car. This can be eliminated by connecting a filter in-line with the aux wire (much like filters are installed on the radio power line). The filter is essentially a low pass filter that filters out noise above a certain frequency. You may have to get creative and modify your aux. input cable (i.e. - splice it into the aux cable) in order for this to work, or you can just turn the volume down a bit - it should be less noticeable at lower volumes.
This sounds like a line timebase failure. The line timebase works at about 15 thousand cycles per second (15KHz) which may be audible to some people due to the iron-ferrite materials used (magnetostrictive).
The line output transformer is highly stressed and also has the rectifier diodes in the outside if the windings. It is all very well insulated to guard against moisture and dust but if it breaks down due to the high voltages (25Kv) the arc produced makes this squealing noise, and of course it burns out, and breaks down. This may not blow the fuse if there is not a short circuit. So get an engineer if you are not sure about changing the line output transformer.