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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
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Fast and courteous service. Product delivered as described. Thank you.
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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!
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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.
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This manual is very useful. Because pioneer sx-q180 is unhandy to use without manual.
6.6.2. MODEM CIRCUIT OPERATION
The modem (IC505) has all the hardware satisfying the CCITT standards mentioned previously. When the ASIC IC501 (77) is brought to a low level, the modem (IC505) is chip-selected and the resistors inside IC are selected by the select signals from ASIC (IC501) ADR0-ADR4(pin 107~111). Commands are written through the data bus, and all processing is controlled by the ASIC (IC501) according to CCITT procedures. Here, the INT signal dispatched from IRQ (pin 52 of IC505) to the ASIC (IC501) implements post processing. This modem (IC505) has an automatic application equalizer. With training signal 1 or 2 at the time of G3 reception, it can automatically establish the optimum equalizer. The modem (IC505) clock is supplied by pin 70 of ASIC (IC501).
1. Facsimile Transmission/DTMF Line Send The digital image data on the data bus is modulated in the modem (IC505), and sent from pin 44 via amplifier IC511 (24 25), and the NCU section to the telephone line. Refer to 2.3.3.5. Analog Board Section. 2. Facsimile Reception The analog image data which is received from the telephone line passes through the NCU section and enters pin 45 of the modem (IC505). The signals that enter pin 45 of the modem (IC505) are demodulated in the board to digital image signals, then placed on the data bus. In this case, the image signals from the telephone line are transmitted serially. Hence, they are placed on the bus in 8 bit units. Here, the internal equalizer circuit reduces the image signals
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