No
Yes
No
Yes
Check Temp Sensor
connector CN802
3&4PIN on DMD Board
Install jumper across
Temp Sensor Terminals
Does it work?
Replace Temp. Sensor
Re insert
the Connector
Replace
DMD board
Do fan(s) run?
Does color wheel run?
Replace color wheel assy'
Is lamp on?
Replace DMD Board
Check 220~410V DC to lamp ballast
(x1) Measure with DC meter
Does lamp
come on, then
shut off?
Replace Power Board Re-install lamp assy'
Check pin 1 on CN803
on DMD board
for 5V DC
Check 5Vpp at CN803
pin 1 on DMD Board
Replace lamp assy' or ballast Replace DMD Board Replace ballast or lamp assy'
Yes
No
No
No
No
Yes
Yes
Yes
Yes
No
No
Yes
No
No NoYes Yes
Temperature Sensor
Replace fan(s)?
Troubleshooting
6-2 Samsung Electronics
< Blinking Temp LED >
A blinking lamp LED is the most common failure indication. It can be caused by no lamp, no color wheel, no fan(s), or other
defective components.
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