Sony amp TA-F417R no sound, when device on temp it may work

Sony TA V715T Manual Stereo Integrated Amplifier HiFi Engine Here's the service manual. Hope it helps.

Search Ebay. They have them.

Have you check your sound configuration at front panel?

Assuming that your TV has a headphone socket, the easiest way is to connect a lead from the headphone socket on your TV to a spare line (or auxiliary) input on the Sony amp. You will need a 3.5mm stereo plug to twin RCA plug cable, long enough to reach both pieces of equipment. Most electrical stores should have a suitable cable available at modest cost :o)

Does the deck light-up at all, or is it completely dead? I've found that in aging tape decks, the belts will deteriorate, and change into tar. I've repaired several of the TA series Sony systems, and that's usually the case. If the deck is just 'dead,' I would recommend retrofitting standard RCA jacks on the back of the amplifier. The pins on the ribbon cable are clearly marked on the PC board inside the amp. Then, you could use any deck you want, or even a CD recorder. Hope this helps. :)

If you are trying to connect a ribbon cable tuner to a conventional RCA input terminal amplifier, it won't work because the ribbon cable carries the signal output as well as the data for frequency synthesis which is determined by the processor located in the amplifier ( that is supposed to work with that type of tuner), and the data buss for the buttons on the front of the tuner.

For the time and effort to put into a workaround, it is cheaper by far to get a tuner that will work with your amp. If cosmetics are not an issue, brand of tuner will not matter as their outputs are "Line Level" or nominally 1 volt peak to peak..

Power Amplifier Failed, Safty is on to protect your speakers from DC voltages

FM-TUNER out connect into tuner in your amplifier

When the amplifier will turn on but not produce any sound that is usually an indication of either the high voltage power supply inside the amplifier is not working, or the amplifier IC or amplifier circuit is damaged. It is not something that can be repaired unless you have experience working on electronics.

Your in luck there is a user guide online that has all you need to know.Here is the link