Olivetti d-Copia 163MF - Fax Control PWB (D-Copia164 Mf Only)

2-3-4 Fax control PWB (d-Copia164MF only)
Figure 2-3-8 Fax control PWB block diagram
Figure 2-3-9 Fax control PWB silk-screen diagram
5 V DC
VCC33
FAX_GND
Network
interface
circuit
(NCU)
Crystal
ID setup
circuit
Active
filter
circuit
+12 V DC
Main
PWB
SYSADR0 - 3
SYSDATA0 - 7
SYS_RD
SYS_WR
FAX_CS2
ID_CS3
FAXINT
PHONE_LINE
SPKR
FAX_RING_DET
/RESET
RIN
TAX1
TAX2
/OH
Telephone
line
/TALK
RINGD
Fax control PWB
Fax
modem
module
J1
1
30
D7
2-3-10 Service Manual Y107330-8