Acer AT3720A Service Manual page 39

to enable this feature:
Setting a personal PIN
1
2
3
4
Locking your TV
1
2
3
Chapter 1
Use the directional keys to navigate to the
(see note)
Enter a four-digit password. Type it again and press OK to reconfirm.
Press MENU to exit.
Use the directional keys to navigate to the
Enter your PIN. Type it again and press OK to reconfirm. (see page 16 note)
Press the MENU key on the remote
control to bring up the OSD.
Settings menu. Then select Set PIN.
Press the MENU key on the remote
control to bring up the OSD.
Settings menu. Then select Lock TV.
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