CHAPTER 5
TROUBLESHOOTING THE INTERACTIVE WHITEBOARD SYSTEM
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Lamp state
Power LED
Projector
Service light
Diagnostic
Indicator
Description
Remedy
On
Solid green
Solid red
Lh
Lh = Lamp hours reminder
After the projector starts, a message
appears on-screen telling the user to
replace the lamp soon. The message
disappears after a moment. The Lh
code remains.
Order a new lamp soon.
Off
Flashing red
Flashing
amber
LH
LH = Lamp voltage too high
The projector has detected that the
lamp voltage is too high for safe
operation.
Replace the lamp.
Off after
failing to
turn on
Flashing
amber
Flashing
amber
LF
LF = Lamp failure
The lamp failed to turn on after
several attempts.
Wait 20 minutes, and then try to
turn the projector on again.
If the condition persists, replace the
lamp.
Off
Flashing red
Flashing red
OH
OH = Thermal sensor overheat
The projector has over-heated and
shut down automatically. The
system can be restarted to resume
normal operation.
The projector may require cleaning,
or the operating environment is too
hot. It may be possible to resume
normal operation if the lamp has
been turned off for at least 30
minutes and operating environment
has cooled down.
Off
Flashing red
Flashing red
dH
dH = Lamp driver overheat
The projector has over-heated and
shut down automatically. The
system can be restarted to resume
normal operation.
The projector may require cleaning,
or the operating environment is too
hot. It may be possible to resume
normal operation if the lamp has
been turned off for at least 30
minutes and operating environment
has cooled down.
Off
Solid red
Solid red
LF
LF = Lamp failure
If the condition persists, replace the
lamp.
LH
LH = Lamp voltage too high
Replace the lamp.
F1
F1 = System fan 1 failure
Contact SMART Support.
F2
F2 = System fan 2 failure
F3
F3 = System fan 3 failure
F4
F4 = Blower fan failure
FC
FC = Color wheel failure
PS
PS = 12 VDC failure
FP
FP = DDP processor failure
Fd
Fd = DmD failure
Fb
Fb = Lamp driver (ballast) failure
