The BBK DV939S is a versatile DVD player designed for home entertainment, offering compatibility with a wide range of disc and digital formats. It supports DVD, CD, and MP3 discs, as well as video playback for MPEG-1, MPEG-2, MPEG-4, and AVI files. Audio playback extends to MP3 and WMA formats. Connectivity options include a USB port for media playback, composite, component, and S-Video outputs, and an HDMI output for high-definition viewing. The unit is powered by a standard AC input of 100-240V, 50/60Hz, and includes a remote control for convenient operation.

This service manual provides comprehensive guidance for the maintenance and repair of the BBK DV939S DVD player. It covers essential service and repair procedures, technical specifications, and operational details necessary for ensuring optimal performance and longevity. The manual is intended for owners, technicians, and service professionals, offering detailed instructions and information to facilitate effective troubleshooting and upkeep of the device.