Control Electronics; Configuration - Brother FAX-170 Service Manual

3. CONTROL ELECTRONICS

3.1

Configuration

The hardware configuration of the facsimile equipment is shown below.
Handset
Speaker
*
2
Motor
Solenoid
Drive unit
Recording head
Line
External
telephone
J1
J2
2-pin 2-pin
J3 4-pin
NCU PCB
(Note)
P2
P1 2-pin
P4 6-pin
FAX
Main PCB
P3 2-pin
engine
P8 12-pin
2-pin 6-pin
P12 P10
Cutter HP
sensor
Power supply PCB
*1 On the main PCB are these sensors:
*2 On the drive unit is the cutter HP sensor.
Configuration of Facsimile Equipment
III – 17
*
1
5-pin
P6
CIS unit
P7 7-pin
• PE sensor (SW1)
• Cover sensor (SW2)
• Hook switch sensor (SW3) (This sensor serves no
function in those versions equipped with a Binatone
handset.)
• Document front sensor (PH1)
• Document rear sensor (PH2)
(Note)
12-pin: U.S.A. versions
18-pin: European versions
Control
panel PCB
LCD
13-pin
FPC key