Tally Dascom DL-210 Maintenance Manual page 56

1.1.5 power error
Phenomen
Possible Cause
on
AC/DC
adapter
unplugged.
Faulty
power adapter.
The power
Faulty
LED is OFF.
switch
connector.
Faulty
supply circuit in
main board.
1.1.6 Communications error
Sympto
Possible Cause
m
Unsecured connection
between
communication cable
and printer.
The
cable is wrong.
The
printer There is something
does not wrong
print. communication cable
or connector.
The
interface
damaged.
The
interface
main board is faulty.
Inspection
power
is Check the power adapter.
in AC/DC Check the power circuit with
multitester.
in power
Check the power switch or
or
connector with multitester.
in power
Check the power supply
circuit with multitester.
communication
with
communication
board is
extending
circuit on
Inspection
Check
communication cable.
Check
communication cable.
Check the conducting
performance of
cable and connector
with multitester.
Replace another
communication
interface board for test.
Replace another
communication
interface board for test.
50
Recovery
Re-connect
power adapter.
Replace the power
adapter.
Replace the power
switch
connector.
Replace the main
board.
Recovery
Re-connect
the
communication
cable.
Use
the prescribed
communication
cable.
Replace
the communication
cable
connector.
Replace
communication
interface board.
Replace
board.
the
or
the
the
the
or
the
main