Panasonic PV-4601 A Service Manual page 17

Fig. 4
3.2.7. VCR Lock Feature
This feature prohibits all operations except for timer recording, and tape eject. This is
useful to prevent misoperation and protect your VCR.
To set the VCR Lock Feature:
Press STOP/EJECT button on VCR for 7 seconds during Stop, or Power OFF mode.
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