Flow Chart For Malfunction - Samsung HLT6187SX Service Manual

Troubleshooting

6-1-2 Flow Chart for Malfunction

If the DLP turns on
No
Check the Power Cord
LED assy array off?
Yes
Check input power
(CN9002)
Yes
12V OK?(Pin8)
Yes
16V OK?(Pin2or 4or 6)
Yes
Is indicating LED on a driver
blinking?
(OP9000-OP9004)
Yes
Count the number of blinking
and check the status of LED
assy array
The number of LED assy array
blinking status
Short
1
Open
2
3
Reserved
4 LED overtemperature
Board overtemperature
5
6-4
Yes
Can you see anything
in the screen?
No
1) Check the DVI Cable
No
connected between the Main
Board and the DMD Board.
If necessary, replace DVI Cable.
No
Check SMPS
No
No
Operate driver in internal mode
SW1: To convert the mode INT with EXT
LED light on?
Yes
Check DMD
Yes
Can you see OSD menu
running in the screen?
No
Check Cables connected to
Main Board. If necessary,
replace the Main Board
Check Cables connected to
DMD Board. If necessary,
replace DMD Board.
Indicating light
See the indicating light in 9-7-1
Intermal mode
At the switch "SW9002"
EXT mode
INT mode
SW1 SW1
SW2 SW2
No
Replace driver
Yes
Can you see Digital
Channel broadcast ?
No
Replace the Main Board
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