You didn't supply the full model number so given it may be a plasma these tend to be very expensive to repair. Why age matters in plasma is the high heat levels of these sets. Most techs use the service manual (see www.samsungparts.com) but some folk don't want to pay 12 bucks for the service manual. They are usually stuck for some time., Anyway here's the usual link to TV repair. Remember no TV techs seem to post on forums. They all get burned by folk demanding a diagnosis and flame the good people for "not getting the right board."
Read http://www.shopjimmy.com/tv-repair-tips
The standby light is lit up but the remote and tv switch are unresponsive. When plugged in the standby light blinks on and off several times and there is an audible clicking as the tv seems to be attempting to turn on several times the the standby light turns to a steady tone. Then nothing else can be done unless the tv is unplugged and plugged back in, then same routine. Tried unplugging all other devices and different power sources.

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