UX-B20U/UX-B20C/B25C
8 – 6
1*: Connect one end of RS-232C cable to the COM port of the PC and the other end to RS-232C DSUB 9PIN of Program loader BOX.
2*: Press and hold down the keys 1 and 3 simultaneously while turning on the FAX machine and until “DOWNLOAD MODE” appears.
3*: Perform the procedure (3) before (4). (Turn on the Program loader BOX and the FAX machine before connecting Main cable and the FAX
machine.)
Connect one end of Main cable to the connector of the Control PWB connector for the FAX machine (CNPRG) (refer to Fig. 3), and the other end
to CN1 of Program loader BOX.
Fig. 2. Program loader BOX
(1) Before connecting the PC
and Program loader BOX
with RS-232C cable.
(2) After connecting the PC
and Program loader BOX
with RS-232C cable. (1*)
(3) Power supply to the FAX
machine.
(4) Connect Program loader
BOX and the
Control PWB of the FAX
machine (CNPRG) with
Main cable. (3*)
FAX PWB rewriting
Set the switches of Program
loader BOX as follows.
(a) MAIN SW OFF (down)
(b) CALIBRATION OFF
(down)
(c) BATSW OFF (down)
(d) PARK SW OFF (down)
(e) IC Voltage to 3.3V (down)
(f) MODE to DOWNLOAD
(down)
Set the switch of Program
loader BOX as follows.
(g) MAIN SW ON (up)
Plug the power cable of the
FAX machine to the outlet.
(2*)
—
Table 2. Program loader BOX connection procedures
Fig. 3. Connection of Main cable
FRONT PANEL
BACK PANEL
AC
CORD
FUSE
MAIN SW
IC
Voltage
ON
OFF
5V
3.3V
PARK SW
ON
OFF
RS-232C
DSUB 9PN
BAT SW
ON
OFF
CALIBRATION
ON
OFF
MODE
CALIBRATION
Cordless
DOWNLOAD
CN1
CN2
MAIN
CALIBRATION
DOWNLOAD
Control
PWB
FAX machine
Download cover
CNPRG
Main Cable
QCNW-306BSCZZ
From
Program Loader BOX
(CN1)
