Audio/Video 4-pole jack connector for camcorders and some other devices

pinout

Used on many modern Sony, Panasonic camcorders and some other devices

4 pin 3.5mm (2.5mm) JACK connector  at the cable (jacks other than 3.5mm may be used)

Trying to connect different camcorders and a/v equipment can become confusing when different manufacturers produce identical cables with different pinout connections. Pin Sony pinout Panasonic pinout Aiwa VCD player 1 Left Audio Right Audio video in-out 2 Composite Video A&V Ground left audio in-out 3 A&V Ground Composite Video right audio in-out 4 Right Audio Left Audio audio and video signal ground

Source:www.pinouts.ru