Hitachi CHROMASTER 5160 Instruction Manual page 307

Press numerical (month) key ([1] to [1][2]), and then
the [ENT] key.
Press numerical (day) key ([1] to [3][1]), and then the
[ENT] key.
Press numerical (year) keys ([2][0][0][0] to ([2][1][0][0]),
and then the [ENT] key.
For resetting of Hg lamp:
（MM
Hg LAMP CHANGE
<1 – 12> _9
Press numerical (month) key ([1] to [1][2]), and then
the [ENT] key.
Press numerical (day) key ([1] to [3][1]), and then the
[ENT] key.
Press numerical (year) keys ([2][0][0][0] to ([2][1][0][0]),
and then the [ENT] key.
3 - 25
DD YYYY）
15 2010
3.3.1