Sony P-700
A model number that shows up in service documentation for a different manufacturer's cassette deck. That tells you almost nothing about the Sony, and it explains why this one is hard to pin down.
Overview
The Sony P-700 shows up in the archive as a puzzle more than a product. The research file for this page is, at the time of writing, empty. There is no confirmed identity, no specifications, no production years, and no documentation that names a Sony consumer component called the P-700. What the archive does hold is a set of service-manual excerpts where "P700" appears repeatedly, but as a printed-circuit-board designation, not a model number: terminals board P700, rear circuit board P700, "Terminals Assembly P700 Component Locations."
Those excerpts come from service literature for the Marantz Model 5025 Stereo Cassette Deck, not from anything Sony published. In that Marantz manual, the chassis is split into numbered units: Pre-Amp on P100, Power Supply on P400, Switch on P500, Volume on P600, Lamp on P650, Terminals on P700, Dolby on P800. P700 is simply the board that carries the rear-panel terminals. That is a plausible reason the string "P-700" keeps turning up in searches, and it is a false lead that a model-number index has to flag. The archive cannot confirm that Sony ever shipped a component called the P-700, and it won't make up a page of specifications to fill the gap.
What can be said with confidence is narrow. The fact sheet supplied for this entry contains no identity data, no specifications, no design notes, no history, no product-family relationships, no reception notes, and no collectibility information. Every category reads the same: nothing to extract, no sources provided. Under the archive's sourcing rules, missing documentation is not evidence that something doesn't exist. It is simply unknown, and unknown is what gets printed. No year appears in the heading above because no year is documented. No price, power rating, frequency response, weight, dimensions or production run is stated here, because none of those values exist in the source material.
The service-manual fragments that mention P700 are the only concrete artifacts in the file, and they are easy to misread. In the Marantz 5025 literature, P700 is the terminals board. Its parts list includes a 220 kΩ ±5% quarter-watt resistor, a 47 kΩ ±5% quarter-watt resistor, a terminal, a jack, several plugs, and a slide switch, along with board assemblies carrying part numbers in the YF and ZZ ranges. A separate Marantz manual, for the Model 5020, lists the same board layout: Pre-Amp on P100, Power Supply on P400, Switch on P500, Volume on P600, Lamp on P650, Terminals on P700, Dolby on P800. So P700 as a board designator was a house convention at Marantz, not a Sony model name. None of this belongs to a Sony product, and none of it is a Sony specification. It is here only to explain why the P-700 designation appears in the archive's indexed material at all.
The magazine corpus attached to this entry doesn't help. Its four chunks are period pages from HiFi-Stereo, High Fidelity, and Mix, and none of them discusses a Sony P-700. One 1982 High Fidelity (September 1982, p.36) page covers vertical-tracking turntables from other brands, including an Optonica model with twin linear-tracking tonearms. A 1983 Mix page is a studio directory listing. The remaining chunks are retail and classified matter. There is no review, no measurement, no price, and no editorial mention of this model anywhere in the supplied period sources. Readers hoping for a contemporary verdict on a Sony P-700 won't find one, and the archive won't pass off an unrelated turntable paragraph as being about this unit.
For collectors, the practical guidance is just as plain. Until documentation naming a Sony P-700 surfaces - an owner's manual, a catalog page, a dealer sheet, a review - there is nothing to value, nothing to service, and nothing to compare against sibling models. Anyone who finds a "P-700" label should first check whether it is a board designation inside a piece of equipment rather than a model number on the front panel, because that is the pattern the available evidence supports. If a genuine Sony P-700 turns up with documentation attached, this page will be rewritten around it.
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