I am experiencing the exact same problem as 'david-d' had with the tv not turning on and the light on the front not coming on either. Same click sound "on" and "off". The red light inside does come on but flickers. This problem started by the tv just shutting off for no reason from time to time, but could be turned back on. Now it won't come on at all. I guess the response from 'LOFATT' solved the problem for 'david-d', but I'm not that educated in this field. I didn't quite understand his solution. If anyone, or 'LOFATT', could please break it down for me so I could understand it better, I sure would appreciate it.
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Start-up voltage do not come to the main power regulator board, from the main board. The fault is somewhat complicated one, as so many checks should be done to reach the exact fault point. Only an experienced service person can do this. Actually this is not a user repairable fault. Contact any experienced service technician.
Nine blinks - Indication of shorted/leaky diodes - D6116 and D6301 on the "G"
Module Error or Thermal Error. Unless you are technically experienced, this can only be repaired by an authorised service centre. Obtain a quote for this, the parts are inexpensive, but labour costs might not be.
If it is intermittent 9 blinks, meaning
sometimes the TV comes on and other times you get flashing, then change
the switching IC regulator on the "G" board or check connections. Make sure
the regulator is -12V or -13V (negative rail).
If the repair is done by an approved workshop, they will clear the error codes (standby LED blinks) as part of their 'soak-testing' and it should reset the TV back to factory condition. Remember to ask about what work was done and if the errors have been cleared/reset before you pay their bill.
make sure the lamp cover is on because sometimes they have switches on them that turns the on when the cover is on but if its off tv might not come on. If thats not the problem then you might have a bad ballast. Call a local tv repair shop.