Sharp AR-250, Service Manual

Page: 75 / 196

(Other models)
2) Select each sensor and press the EXECUTE key, and the adjust-
ment will be performed automatically.
RESIST (DFD): Resist sensor
TIMING (DTD): Timing sensor
REVERSE (RDD): Reverse sensor
*
1
*1: Only when the AR-RF1 is installed.
(3) Test mode with DIP switch
The RADF (ADF) single unit operation can be checked with the DIP
switch on the control PWB shown below.
(Control PWB view)
(DIP switch view)
(Operating procedure)
1) Remove the control PWB cover.
2) Disconnect the connector from the CN9 on the control PWB, and
connect the short connector (OCW4074K526//) instead.
3) Remove the ADF/RADF top cover, and set the DIP switch on the
control PWB to the desired test mode. While pressing the push
switch ON, turn on the power of the machine.
(With the above operation, the machine enters the test mode.)
4) Turn on the push switch on the control PWB.
(Test operation is started.)
(To switch to another test mode, set the DIP switch on the control
PWB to the desired test mode, and open/close the ADF/RADF paper
feed section cover (microswitch FGOS it turned OFF and ON).
·
DIP switch 3 meaning
ON OFF
DIP switch 3 For AB series For inch series
·
Kinds of test modes and setting of DIP switch
No. Test mode name DIP switch
a Single paper pass mode All OFF
b
Duplex paper pass mode (AR-RF1
only) 1 ON,
the others OFF
c
Single aging mode 1, 3 ON,
2, 4, 5 OFF
d
Duplex aging mode (AR-RF1 only) 4 ON,
the others OFF
e
Load check mode 1, 5 ON,
2, 3, 4, OFF
f
EEPROM initializing mode + all
sensors adjustment mode 3, 5 ON,
1, 2, 4, OFF
g
Resist sensor adjustment mode 4, 5 ON,
1, 2, 3, OFF
h
Timing sensor adjustment mode 1, 4, 5, ON,
2, 3, OFF
i
Paper exit sensor adjustment mode
(AR-RF1 only) 3, 4, 5, ON,
1, 2, OFF
DIP switch
CPU
EEP ROM
G/A
Push switch
OFF
ON
SW No.1 2 3 4 5
Control PWB
Remove
CN9
Short connector (0CW4074K526//)
DIP switch
Control PWB (Back)
Push switch
6 – 25 7/13/2000