The Prology DVD-515U is a car audio system designed to enhance the in-car entertainment experience. This aftermarket unit integrates DVD and CD playback with modern digital media support, including USB and SD card inputs, and Bluetooth connectivity for hands-free calling and audio streaming. It features an AM/FM tuner, an AUX input, and RCA pre-outs for connecting external amplifiers, offering a versatile solution for vehicle audio upgrades. The Prology brand is recognized for providing feature-rich car audio products at competitive price points, and the DVD-515U represents a blend of established media playback and essential connectivity features for a wide range of vehicles.

This service repair manual provides comprehensive guidance for the maintenance, troubleshooting, and repair of the Prology DVD-515U car audio system. It covers critical areas such as the DVD mechanism, audio amplifier circuits, display unit, control board, power supply, tuner module, and various connectivity ports. Detailed procedures for disassembly, reassembly, component-level troubleshooting, and repair are included, alongside diagnostic flowcharts, error code interpretation, and wiring and schematic diagrams. This manual is intended for owners, technicians, and mechanics seeking to understand and maintain the functionality of their Prology DVD-515U system, addressing common faults and ensuring optimal performance.