User guide
Service and display messages  35
Service and display messages
The MAC Viper Profile gives service and maintenance information by displaying a large 3- or 4-character 
short code and a smaller full-text message in the fixture’s display. The short code is visible at a distance, 
allowing easier reading with the fixture still in the rig, for example, while the full-text message gives more 
detailed information.
Warning messages
Warning messages indicate that either:
• problems might appear in the future if no action is taken, or
• the user needs to pay special attention to a function or procedure when working with the fixture.
The MAC Viper Profile communicates warnings as follows:
• Warning codes are shown continuously in the display and disappear when the user reacts to the warning. 
• If more than one warning is detected, all warnings are displayed in sequence.
• If the display is inactive, the fixture’s status LED (see Figure 4 on page 11) flashes orange to indicate that 
there is a warning. Activating the display will show the warning.
The possible warning messages are listed in Table 3 below
:
Short code
Long message and explanation
BANK
BANK NO ACCESS
Error unpacking firmware bank during/after software upload. Fixture will continue to operate on 
existing firmware. Warning message is cleared by a successful software upload or at the next 
power off/on cycle.
BATW
BAL TEMP HIGH
Ballast PCB sensor detects that normal operating temperature is exceeded.**
CMTW
CMY TEMP HIGH
CMY PCB sensor detects that normal operating temperature is exceeded.**
DINA
DIMMER ADJUST
No dimmer adjustment data in EEPROM. Dimmer may be incorrectly adjusted*.
EFTW
EFF TEMP HIGH
Effects PCB sensor detects that normal operating temperature is exceeded.**
GxyM
GOBO x-y MISSING
Gobo x on gobo wheel y not detected at last reset. If no gobos are detected, an RxER message 
is also displayed.
HOT
LAMP HOT
Lamp is too hot to restrike. Pan and tilt are disabled for 8 minutes to reduce the risk of falling 
fragments if the lamp has exploded. Fixture will attempt to restrike at one-minute intervals. If 
lamp still refuses to strike after eight attempts, an LAER (Lamp Error) message is displayed.
INLK
INVALID LICENSE KEY
Invalid license key entered. Warning is displayed and it is impossible to enter a license key for 
10 seconds.
NFWR
NEW FW REQUIRED
Fixture has detected a software problem and is requesting new firmware. There may be some 
loss of fixture functionality.
PANA
PAN ADJUST
No pan adjustment data in EEPROM. Pan may be incorrectly adjusted.*
PTTW
PT TEMP HIGH
Pan/tilt PCB sensor detects that normal operating temperature is exceeded.**
PUTW
PSU TEMP HIGH
Power supply unit PCB sensor detects that normal operating temperature is exceeded.**
SERV
SERVICE MODE
Pan and tilt disabled to allow service access. Power must be cycled off and on to re-enable pan 
and tilt.
Table 3: Warning messages










