Ricoh FACSIMILE FAX77 - Page 177

CN2 - Video Signal Test Points
CN6 - Cutter
Pin
Name
Function
V
1 XVIDEO Analog video
0
2 VIDADJ Video adjustment signal
2
3 5LYNSC Line sync (factory use)
0
4
COM1 Ground
0
CN3 - ADF Clutch
Pin Name Function
V
1 5TXCLU Drive signal (active L)
24
2 + 24VA Power
24
CN4 - Tx Motor
Pin
Name
Function V
1
OUTBB Stepper motor drive phase 1
2
OUTB Stepper motor drive phase 1
3 OUTAA Stepper motor drive phase 0
4
OUTA Stepper motor drive phase 0
CN5 - Not used
Pin
Name Function V
1 1DCMT0 Cutter motor drive
1
2 1DCMT1 Cutter motor drive 1
3 5SB7 SB-7 status (Standby = L) 0
4
COM1 Ground 0
CN7 - Thermal Head
Pin Name Function V
1 THMOD Not connected
2 1PRDAT Data signal (Black = H)
5
3 5THLAT Latch signal (active L)
5
4 PRCK Data transfer clock
5
5
5STB0 Strobe signal
5
6
5STB1 Strobe signal
5
7
5STB2 Strobe signal 5
8 5STB3 Strobe signal
5
9 COM1 Ground
0
10
+ 5V Supply to thermal head
5
11 THSEN Thermistor output
CN8 - Xenon Lamp Driver
Pin Name Function
V
1 5XLMPON Lamp drive (L = On) 0
2
+ 24VA Power for lamp 24
7-3