Panasonic DMP-BD45EB Service Manual page 18

7.2.2. Privately Mode 1 (Remote Cont. Buttons: [6] [7] [Yellow])
When pressing the 3 buttons, [6], [7] and [Yellow] simultaneously for 5 seconds, "50 RET" is displayed on FL display.
7.2.3. Privately Mode 2 (Remote Cont. Buttons: [5] [9] [Red])
When pressing the 3 buttons, [5], [9] and [Red] simultaneously for 5 seconds, "70 RET" is displayed on FL display.
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