OPERATION |
3.4OPERATIONAL FIELD STRAPPING CHANGES
Access inside the equipment is only permitted to authorized service personnel.
If it becomes necessary to reconfigure the
CAUTION Do not open the top cover for strap changes before removing the AC power from the unit.
3.5FAULT ISOLATION PROCEDURE
WARNING These service instructions should be used by qualified personnel only.
Access inside the equipment is only permitted to authorized service personnel.
3.5.1 Power Supply
If AC power has been applied to the
a)Verify that the 110/220 selector is set correctly.
b)Verify that the power switch light is on.
c)Unplug the AC cord and then pull out the fuse (located above
d)Remove the top cover of the unit and check that the
3.5.2 RSD Malfunction
If the Power LED is ON but the
a)Unplug the AC cord and remove the top cover.
b)Verify that all the DCE/DTE switches are set according to the data system requirements.*
c)Verify that the strap settings are correct.
d)Check the three large LSI chips
*In the V.35 option, check that main and
3.3