Tunable Semiconductor Laser TSL-710
12-1
Troubleshooting
12
Fault condition
Cause
Action
No power
Cord is unconnected.
Connect cord properly.
No fuse or fuse is blown out
Open the fuse box lid and replace
fuse.
The unit is not turn off. Some electrical faults occur.
Keep pressing the Power ON/OFF
key at least 10 seconds.
No light output
LD drive key is not turned on.
Press LD button to turn LD ON.
(see section 5-2)
Target output power is not set
or too low.
Set target out put power (see
section 5-4).
surface of connector is dirty
Clean the surface of connector.
(see section 10-2)
Internal shutter is closed.
Open the shutter. (see section 6-11)
Interlock circuit is open.
Short the interlock circuit.
Optical output power
adjustment is not possible
Power control is manual.
Switch to Auto control. (see section
6-3)
Power setting mode is not
selected.
Select the power setting mode. (see
section 5-4)
Optical output power is
too low
Attenuator setting is not proper.
Set the attenuator properly. (see
section 6-3)
surface of connector is dirty.
Clean the surface of connector.
(see section 10-2)
“TempErr” is displayed
on the screen while LD is
illuminated.
The ambient temperature may
have exceeded the operating
temperature range.
“Turn off LD output immediately. If the
ambient illuminated. temperature is
not within the operating temperature
range, turn LD output back on after the
ambient temperature returns to within
the operating temperature range.
Please contact our office if “TempErr”
continues to be displayed.
“WL.Err” status is
displayed,
The closed-loop wavelength
control using the built-in
wavelength monitor is not working
properly.
Please restart the product and turn on
the LD. If "WL.Err" is still displayed,
please contact us.
“TempErr” is displayed
while LD output is OFF.
LD output was turned off
automatically because the LD
temperature continued to rise
due to abnormal LD temperature
control. The ambient temperature
may have exceeded the
operating temperature range.
Set the ambient temperature to within
the operating temperature range and
then turn on LD output. Please contact
our office if “TempErr” continues to be
displayed.
GP-IB communication is
not possible
GP-IB address is not set correctly. Set GPIB address correctly. (see section
7-1-2)
Delimiter setting is incorrect. Check the delimiter setting. (see section
7-1-2)
Cable is not connected properly. Check the connection of the cable. (see
section 7-1-2)
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