LG BS254 Service Manual page 19

Delta Elec. Inc.
Image
Display
Yes
Projector logo
screen display
Yes
Confirmation with none-signal state
Still dark after the
lamp is on for more
than 1min
Yes
"No signal" Message display
No
Press "Menu" key
Yes
Input each signal
Yes
Image display
normally
Yes
Speaker work
normally
Yes
Check the
projection
Screen
Company Confidential
19
BS254_BX254_BX324
• CW Sensor Board Ass'y malfunction
No
• Main Board Ass'y malfunction
• DMD Set malfunction
• Lamp deterioration (malfunction/usage time)
Yes
• Power Supply Unit malfunction
(No change occurs even after lamp replacement.)
• DMD Set malfunction
(No change occurs even after lamp replacement.)
• Remote controller set malfunction, Low battery, and outside
No
operation rang
• Main Board Ass'y malfunction
• Connector (P704)、(P8103
• IR PWB Ass'y malfunction
• Check the pattern generator setting is wrong
• Main Board Ass'y malfunction
No
• DMD Set malfunction
• Setting on PC side(external output setting, resolution, etc.)
• Cable malfunction (disconnection and pins broken)
• Connector (P902) disconnected
No
• Speaker Ass'y malfunction
• Main Board Ass'y malfunction
LG ______________________
No
No
No
of IR PWB) disconnected
No
No
Delta____________
rev.06
2011/06/16