Hamamatsu ENERGETIQ LDTLS TLS-EQ-77H, Operation Manual

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Located on the EQ-77 Controller front panel are LED system status indicators. The function of these
indicators is described below in Table 3.
LED Label Meaning (when lit)
POWER OK AC power is connected to the EQ-77 Power Supply Controller
LAMP ON UV Light is on
LASER ON Laser power is ON and laser light is being produced within the Lamp
CONTROLLER FAULT One of the following has occurred in the Power Supply Controller:

External interlock open

Controller internal temperature too high

Laser power not reaching setpoint

Laser temperature fault

Internal power supply voltage low
LAMP MODULE FAULT
One of the following has occurred in the Lamp House module:

Control Cable not connected properly

Lamphouse internal temperature too high

Ignition Failure
Table 3: Status Indicator LED Functions
3.2.2 Lamp House Assembly
The Lamp house assembly contains:

EQ-77 lamp

Monochromator

Optics

Interface connectors
Figure 3: TLS-EQ-77H Lamp (rear view)