Panasonic DMR-E55P Service Manual page 9

The Switching ON width responds to change of F/B Voltage.
Standby Function
When Z/C Voltage becomes less than 3V, the unit changes to Standby mode.
IC1150 Block Diagram
Signal name
Pin No.
1 Zero Current Det.
2 Feed back
3 GND
4 Vcc
5 Drain
8. Taking out the Disc from RAM-Drive Unit when the
Name
Z/C
F/B
GND
Vcc
Drain
Symbol
9