Service manual

6. MAINTENANCE
Service Manual BSM-4100 6.7
Operation
Item Check Procedure Action
Key function on the
operation panel
Check that the function of each key on the
control panel works correctly.
Remove the cause if the key function is
wrong.
Touch screen key
function
Check that the function of each key on the
screen works correctly.
Remove the cause if the key function is
wrong.
Display
Item Check Procedure Action
Crack, scratch or dirt Check that there is no crack, scratch or dirt
on the touch screen.
If there is a crack or scratch on the screen,
replace it with a new one. If the screen is dirty,
clean it with a soft cloth moistened with water.
Display control
settings
Check that the control settings such as
brightness work correctly.
If one of the control settings has no function,
remove the cause.
Minimum brightness
control
Check that the waveforms and data do not
disappear when the brightness is set to
minimum on the screen.
Remove the cause if the waveforms or data
disappear from the screen.
CRTC check
Check that there is no error on the screen
when performing the CRTC checks on the
Manual Check Menu screen.
Remove the cause if an error occurs.
Recorder
Item Check Procedure Action
Waveform and character
data on paper
Check that the waveform and character
data on the paper are clear.
If the waveform or character data is not
clear, clean the thermal array head. Refer
to the operator’s manual.
Recording paper
Check that Nihon Kohden recording paper
is used.
If unspecified paper is used, replace it with
Nihon Kohden specified paper.
Paper drive check
Check that the paper moves at a preset
paper speed without snaking.
Remove the cause if the paper moves
abnormally.
Abnormal sound
Check that the motor and gears do not
generate abnormal sound.
Remove the cause if there is abnormal
sound.
Mark detection
Check that the mark detection works
correctly.
Remove the cause if the mark detection
does not work.
Recorder check in WS
Check mode
Check that there is no error on the paper
when performing the recorder check in the
WS Check mode. Refer to Section 3.
Replace the MAIN board or other
component with a new one according to
the WS Check Mode section.
Printed date and time
check
Check that the correct date and time are
printed on the paper.
Remove the cause if the date and time is
wrong or not printed.