Last week I bought a second hand Panasonic AG-7500 SVHS Hi-Fi Video Cassette Recorder. It is a professional machine with many video and audio options. I feared it would be a huge quest to find a manual. I was delighted when I found owner-manuals.com. After payment I received the file to download the next day already. The quality is great. I am very happy. Thanks!
The owner's manual/operating instructions that I purchased was the original factory document and it was in at least three and maybe more languages. I no longer have it because I sold the tape recorder and included the owner's manual/operating instructions and a service/repair manual that I bought on ebay for the new owner.
Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
Text excerpt from page 27 (click to view)
21
Power of the received RF signal
In display panel , the power of the received RF signal (in μV) and the level control of the AF signal (in %) � i.e. the modulation of the RF signal � are shown. Both displays have an overmodulation display. If the signal is too high, �PEAK� lights up briefly. Short overmodulation is not critical. Where longer overmodulation occurs, the modulation of the corresponding transmitter must be reduced. For the AF signal, �peak hold� is also shown, which means that short peaks remain visible for some time.
Note If, with multi-channel systems (more than tree channels), the overmodulation display (�PEAK�) for the AF signal lights up during normal operation, the RF level should be reduced at the receivers in order to avoid intermodulation interference. In this case, increase the distance between receiving antennæ and transmitters or use attenuators in the antenna inputs.
