This was a hard to find manual. When I did find it , some sites wanted way too much for the file.
Owner-manual .com had it for a really reasonable price. Not only that but it was sent very quickly and was a quality scanned document, unlike some others I purchased from a different site.
Good job guys!!
Larry
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.
This manual is very useful. Because pioneer sx-q180 is unhandy to use without manual.
Text excerpt from page 50 (click to view)
Circuit Diagram
26.6. FM Demodulation
The receiving signal, FM signal which is despread at IC611, is input to Pin 16 of IC613. The signal of 10.24MHz output from Pin 11 of IC601 is increased by 4 times to become the 2nd local signal of 40.96MHz, and input to Pin 2 of IC613. IC613 makes the 2nd local signal of 10.8MHz from the input signals of Pin 2 and Pin 16, and outputs it from Pin 7. Then the FM demodulated signal, voice signal is output from Pin 14.
Circuit Diagram
26.7. RSSI (Receiving Signal Strength)
IC613 detects the 2nd IF signal (10.8MHz), and converts the receiving signal level to DC voltage, then outputs from Pin 10. This level modulation of RSSI indicates a level modulation of reception signal. In this system, this modulation takes a periodic of SS (PN), and returns extended signal by PN to original signal that is not extended. Output (Pin 10 )of RSSI is connected to CPU, IC702 and Q602. CPU predicts the distance between handset and base by this level change and changes transmission output. IC702 takes the periodic of SS (PN) that is referred above. Q602 controls Gain of Reception Amp between handset and base unit.
