Clear CMOS S1 (1)
You can to clear CMOS. Clear CMOS procedure:
1. Disconnect all power source.
2. Move S1 (1) from OFF to ON for few seconds.
3. Move S1 (1) back to ON.
6 5 4 3 2 1
ON
Clear CMOS S1 (1)
Protect*
Clear CMOS
6 5 4 3 2 1
6 5 4 3 2 1
S1 (1)
ON
ON
*default
20 SBC-557 User Manual