
jts1957
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Jan 6, 2011, 1:00 AM
Post #7 of 11
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Re: [steve123] Samsung HLN 5065W TV comes on for 30 seconds then picture is out
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1. If the 3 LED indicators flicker from the time the set is turned on, it means: 1) The CN106 connector on the DMD board is not inserted properly. 2) The MDR cable that connects the DIGITAL board to the DMD board is not connected properly. 3) If the lamp does not turn on even after turning it on three times, by powering off/on 15 second intervals: a) The B+ 380V power is not supplied to the ballast (The cable is not connected properly between the power and the ballast.) b) The cable connected to the CN110 terminal on the DMD board and the CN2 terminal on the ballast is shortcircuited or not connected. c) The lamp does not turn on because 5V has not been supplied to blue pin #1 on the CN2 terminal of the ballast. d) 5V is supplied to the CN2 terminal on the ballast but the lamp does not turn on because the ballast has a failure. (If the lamp is replaced and 5V is supplied normally to the CN2 terminal, suspect a ballast failure if the lamp still does not turn on.) e) The ballast is normal but the lamp doest not turn on. (When 5V is supplied to CN2 and 385V to CN1, but the lamp does not turn on, try replacing the lamp. If it turns on, that means it was a lamp failure.) 4) The color wheel engaged to the engine does not operate, or the connector which indicates the operation of the color wheel is not connected properly, and therefore does not allow the lamp to turn on. The cause can be determined when the set still does not turn on after attempting to turn it on three times. 5) Another digital board or the DMD board has a failure. Conclusively, if the three LED indicators flicker, first check the above five items, then check the various connector connections, and then suspect a failure of the lamp or the ballast. No dessert! ------------------------- Location: Far, Far Away
(This post was edited by jts1957 on Jan 6, 2011, 1:01 AM)
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