I Have The SPL-4425 And The On Screen Display (OSD) Shows

Last Update date : Apr 09. 2018
To unlock the Panel Lock, follow these steps:
  1. Turn on your TV.
  2. On the remote, press the Menu button. The Set-Up Menu appears.
  3. Scroll to the Key Lock function and set function to off.
  4. Press the Exit button to exit.

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