Canon FAX-L1000 - Manual (Page 39)

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FAX-L1000 Chapter 1: Safety and Precautions
2.3.6 Control boards
a) SCNT board
Jumper plug JP3 and J6 are for factory check only. Service technician must not remove it.
REFERENCE
SCNT board data
User data, service data are stored in memory on the SCNT board. Therefore,
these data must be printed out before replacing the SCNT board.
For details, see
this Chapter, 3. PRECAUTIONS FOR DATA
PROTECTION .
b) Power supply unit
The RV1 and RV2 are for factory adjustment only. Service technician must not change
these settings.
c) ECNT board
The VR601 is for factory adjustment only. Service technician must not change this setting.
d) Laser scanner unit
The VR501, VR502 and VR503 are for factory adjustment only. Service technician must
not change these settings.