Optoma EP720 Family Service Manual page 84

Appendix B
I. Serial Number System Definition
Serial Number Format for EP720
Q 89U 8 23 AAAAA C 0001
1 2
:
1
2 :
3
:
:
4
:
5
6 :
:
7
EX: Q89U823AAAAAC0001
This label represents the serial number of EP720, which is produced at CPC on the
twenty-third week of 2008. Its serial code is 0001. week of 2008. Its serial code is 0001.
3
4
Q = Customer Code (ex: Q = Optoma)
Product Code (ex: 89U = EP720)
Last number of the manufactured year (ex:2008- 8)
Week of the manufactured year (ex: 23= the twenty-third week of the
manufactured year)
Code
Manufactory Location (ex: C = China)
Serial code (from 0001~)
5 6 7
EP720 Family/EP726 Family
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