Service manual
UX-22oocMu/cMC
F0215ocMu/cMc
2. Description
2-1. Extension board unit
1. Remove the TEULIU PWB, control PWB and Power Supply PWB
from this unit, and mount the extension board unit instead.
l Before connecting the wiring to the extension board unit, set the
test PWB switches to the fixed position.
2. The setting is as follows.
(1). Check Control PWB only
/
\
EXTENSION
CONTROL
PWB
TPl
L/
CNLIU
f
TP2
CHECK
TELMU
PWB
(2). Check Printer PWB only
’ A set with a mounted
extension board unit
q- EXTENSION CONTROL PWB
Connected to (PWB)
CNPW
CNLIUA
CNPRT
CHECK
CONTROL
PWB
QCNW-4778AXZ
I-
CONTROL
PWB
The paper-in sensor (PCI) is operated by OR of the mechanical unit
switch and the test PWB switch.
When performing installation in the machine unit, set the test PWB switch
to the fixed position.
Mechanical unit PWB to be tested
Actual operation with
mechanical unit
I
Paper in sensor
ON/OFF operation OFF (Photo interrupter
is interrupted.)
1
I
PWB sensor check
Paper in sensor
OFF
ON/OFF operation
I
I
* Recording paper in: ON
Not recording paper in: OFF
I
EXTENSION
PRINTER
PWB
POWER
SUPPLY
PWB
I I
Extension Printer Cable + EXTENSION PRINTER PWS