CDP-X5000 - Sony Audio Service Manual (repair manual). Page 18

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— 18 —
• Main Ports
 SPINDLE MUTE
The disc must not move nor sway when the disc lid opens. These
problems however occur in the actual case due to the offset volt-
age generated and the voltage generated because of the positional
relation between the BSL coil and Hall element.
The BSL (IC104, IC105) driver is therefore muted while the lid is
open.
 BLANK
This port is required because the display tube in this set static-
lights up and a dedicated screwdriver is required.
It is basically a RESET pin. But as problems will occur if used
also as RESET , timings are specially provided using the micro-
processor.
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