Canon IR2200, IR3300, IR2800 manual SP1 FAX-CON, Ncu Pcb, Dimm

CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS

6.6.1 Others

Electrical signal (target)	Reference to general	I/O address	Remarks
Name	circuit diagram	I/O indication
SP1 (FAX-CON)	A3-1-E
Speaker

6.6.2 PCBs

Ref.	Description	Remarks
Name
[1]	Controls the fax system.
G3 FAX control PCB
[2]	Serves as an interface between	100V and 120V models use
NCU PCB	telephone line and fax system.	different interfaces.
[3]	Connects a modular cable.	100V and 120V models use
G3 modular PCB		different interfaces.
[4]	Stores firmware for the fax	16M bit
DIMM	system.
[5]	Generates a pseudo CI signal.	100V
Pseudo CI PCB
[6]	Detects off-hook state of the	120V
Off-hook detection PCB	telephone

COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001 4-77 T