Panasonic DP-C321 Service Handbook page 247

[Operation Description]:
Open
On: High
[Reference BSD]: CH11.1
104.012-302
Docking Interlock Sensor
[PSW Display]: Docking Interlock Sensor
[Display]: H/L
[Operation Description]:
Docking release
On: High
[Reference BSD]: CH11.1
105.012-305
H-Tra Interlock Sensor
[PSW Display]: H-Tra Interlock Sensor
[Display]: H/L
[Operation Description]:
Open
On: High
[Reference BSD]: CH11.4
3-173
Chapter 3 Troubleshooting