Specifications

CHAPTER 4 SERVICE MODE

4-48

1999 CANON INC. CANON SUPER G3 FAX BOARD-F1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

(3) LINE DETECT 3

Press ‘LINE DETECT 3’ on the Line Test Menu screen to bring up the following screen:

Use this item to check CNG signals by PLL.

When this item is executed, a direct current is supplied between L1 and L2, and the extension

telephone is put off hook; signals are then introduced from the line or the extension telephone at 1100

Hz (CNG). Upon detection of a signal, the screen will indicate ‘ON’.

CNG=OFF

Report

Sssw Menu Num Ncu

Type

Genesis

Print Clear Test