Blinking Temp Led - Samsung HLS5087WX/XAA Service Manual

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