Thermal 2 Errorcode: [02334] The laser power is unstable

Thermal2 Errorcode: [02334] The laser power is unstable

Thermal2 Errorcode


Service Information	The "Power" and "Retrace" laser diode control modes will attempt to maintain the laser power by adjusting the laser current. This error indicates the laser power is unstable.
	Note that this error code is also returned to the host as an unsolicited warning fault.
Operator Action	Call service.
Causes	The laser power is unstable.
Related Documents	COMMAND: ldd mode (calibrate\|monitor\|power\|retrace\|suspend\|current\|simulate\|reset\|_standby\|off) [<setpoint>]


Possible cause		M8 is out by 2% or more.

Suggested action		If the fault is intermittent, run `shtrglitch.spt`. Check the nafion air line. Check the 48 V power supply to the write laser. If this error comes with one or more of the following other errors: 02333, 02332, or 02326, check the write laser current when the laser is on. Use the command `ldd info`. If the current value is close to or over the nominal current, try reducing head power. Check the bpd sensors by running `bpdnoise.spt`. If the warning persists, contact the RC.

Related Procedure(s)		Error 02334 occurs when the shutter opens or closes Humidity and oil in the air supply causes banding and error 02334 Laser Power Is Unstable Measuring Voltages on a TH2 head Th2 Write Laser and LDD Calibrate: Details and Troubleshooting