The OPA690 was chosen due to the high bandwidth and single-rail supply (allowing the Domesday Duplicator to be powered using only the 5V VBUS supply from the USB host).įor the Sony LDP-1500P laserdisc player R5 is set at 1K2 and R4 at 220R. A high-bandwidth OPA690 single-rail opamp is then used to add gain to the RF signal to ensure the amplitude of the RF is suitable for the 2V peak-to-peak range of the ADC. The RF front-end takes the raw RF output from the laserdisc player, decouples the DC offset and then applies a DC offset of 2.5V required for the ADC (note that the offset is provided by the ADC's reference signal generator (REFT and REFB)). The RF front-end design can be seen in the following schematic diagram: Domesday Duplicator 2_2 Front-end schematic What's your Laserdisc players worth in 2022? Here are some recently sold items with prices.Electronics design and schematics RF Front-end LinksĬonnect with the global laserdisc community and join the Laserdisc Forever! Facebook group. There was a also a laserdisc game console to arcade games at home, the LaserActive. There were many LD players made, and according to the internet, the most popular players are these Pioneer laserdisc player models: Production of LaserDisc players continued until January 14, 2009, when Pioneer stopped making them. The last title released in North America was Paramount's Bringing Out the Dead on October 3, 2000. The first LaserDisc title marketed in North America was the MCA DiscoVision release of Jaws on December 15, 1978. In Japan, one of the last models to be produced even had the ability to play DVDs as well as CDs and Laserdiscs. Some of the later Laserdisc players made were ones that could play Audio CDs as well as Laserdiscs. These problems were fixed in later models. The first units that were made with the infrared laser had some problems such as skipping, strange colors spots, and fuzziness. The early Laserdisc players used a Helium-Neon laser to read the disc, but the later models used infrared lasers. There are no home video formats comparable to 35mm or 70mm film. LD image quality is roughly comparable to standard 16mm film, VHS is roughly comparable to 8mm film. Pioneer pitched LD as '60% sharper' than VHS. LD was first demonstrated by Philips and MCA in 1972, and has been on the market since 1978, or about as long as VCR and six years longer than CD. The players are also sometimes referred to as VDPs (Video Disc Players) and Sony calls them MDPs. During its life, the format has also been known as LV (LaserVision) and CDV (Compact Disc Video). LD stands for LaserDisc, the industry-wide term for consumer laser video.

Pioneer Ld S2 User Manual