Produced: 1985-1990
Horizontal resolution:
SP mode: 300 lines (colour/monochrome)
Conventional mode: 260 lines (colour/monochrome)
The BVU-870P offers excellent video and audio performance by the adoption of Superior Performance (SP) circuits,
Dolby C noise reduction, a redesigned audio head block, Dynamic Tracking to provide broadcast quality pictures from -1 to +3 times normal speed.
HANDLING METHOD OF THE DYNAMIC TRACKING HEAD (BIMORPH HEAD) AND HEAD CLEANING METHOD
When replacing the upper drum ass’y, never make the dynamic tracking heads to touch to anything. The Dynamic Tracking Heads are mounted on the upper drum through a bimorph (ceramic). If the bimorph is given a strong force, it is possible to be distorted. Therefore it is recommended not to clean the DT heads except only when it’s clogged.
CLEANING METHOD
With the power OFF. Press the cleaning piece moistened with the cleaning fluid and turn the drum slowly with hand, cleaning the video heads and the rotary erase heads. (Do not exert too much pressure.)
Note: Never move the cleaning piece in the vertical direction of the head tip in the cleaning. It may damage the head tips.
SONY CORPORATION
