IV - 5
[ 3 ] No printing is performed.
Y
N
N
Y
N
Y
Tape feed is normal but cannot print.
Is the print head
cable connected correctly?
Is the head cable of
the correct color
connected?
Is VH in the stand-by
status or printing 25V 1.5V?
Is the signal for
thermal head normal?
The thermal head is defective.
Replace the thermal head ASSY.
Correct the connection.
Set the roll in the correct
direction.
Any devices on the main PCB are
defective or soldering is defective.
Replace the main PCB ASSY.
N
Y
Is the direction
of the roll correctly?
The power supply PCB is defective.
Replace the power supply PCB.
Summary of Contents for TD-4000
Page 1: ...SERVICE MANUAL MODEL TD 4000 TD 4100N ...
Page 139: ...Dec 2009 SM PT031 1 ...