3DB
1-1-3 Mechanical construction
PSPCB
MPCB
The fax system consists of the fax control PCB (FCPCB), NCU PCB (NCUPCB), auxiliary power source PCB (APSPCB),
speaker (SP), backup battery (BUBAT) and optional memory module DIMM.
1-1-8
CN8
MSW
RELAY IN
TB1
APSPCB
NEUTRAL IN
TB3
CN31
LINE
TEL
Figure 1-1-5
YC8
6
5
3
1
7
8
9
YC7
SPEAKER
1
A.GND
2
YC6
BATT
1
G(5V)
2