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Hi there, sorry to hear you're having trouble with the Sanyo,
this is a fairly common problem with this model.
Unfortunately, the symptoms you are experiencing are symptomatic of an internal hardware defect, typically a faulty power supply or main board (the 2 most common failure points). This issue could be a manufacturing defect, but is also often caused by a power event (shock/surge, prolonged over/under voltage condition, etc).
Do you get any signs of life from the set at all? Is the power light on or flashing, is the optical port on the back glowing red?
Okay, if there are no signs of life at all (no lights, no clicks, etc) then the power supply is the most likely failure, with the most common failure point being bad capacitors.
There is one step you can take here, both as a possible fix, as well as a diagnostic evaluation 1) Unplug the power cord from the tv
2) Wait at least 1 hour (60+ Minutes)
3) Press and hold the power button (on the set, not the remote) for 60 seconds, 4) Keep holding power button while plugging back in, and for another 60 seconds after. When plugging back in, go directly to the wall outlet, bypassing any power strips or surge protectors.
If this reset process does not work, it would unfortunately confirm a hardware failure.
This is something that would require repairs to correct; if you're thinking about a do it yourself repair, you'll need to be comfortable and skilled with electronics repairs, which would require dismantling the set (removing the back panel of the tv), diagnostics with a digital multimeter to test voltages inside, changing out boards as needed, and possibly desoldering/removing and soldering/replacing capacitors (a common failure point).
If you’re considering repair at a local shop, you’ll find a typical repair to be around $300 for diagnostics, parts, and labor.
If it comes to that, considering the age and size of the set, it usually makes more sense to buy a new tv, as you can do so for about the same cost as what you'd spend on repairs, and be updating to newer features and a fresh warranty in the process.
Assuming the reset doesn't help, depending how you'd like to proceed, I'd be happy to help with finding parts, finding a local repair shop, or recommending a replacement set.
ok I will unplug the set and try to reset the tv as you suggested
Thanks, XXXXX XXXXX know how it works out, if you have a chance.
I'll be happy to advise further if needed after the reset attempt.
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