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Re: What do you look for when the tv want stay on?
This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. Shutdown at power with self diagnosis error 2-2. Check for open fuses F9A04 and F9A05 part # 283P144080 on the +24 and -24 volt lines. If the fuses are open the convergence output circuit would be suspect. 2. Shutdown at power with self diagnosis error 2-1. At power on check for 12-volts DC at connector KH pin 8, if missing check IC9C51 part # 270P990010 and L9C52 part # 441D009020 on the Signal PCB
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does this mean that when you turn it on by the unit it is fine? If so then what you need to do is a remote reset, to do this turn the tv off at the wall then take the batteries out of the remote, then press all the buttons on the remote working your way from the top to the bottom (and yes sounds bisare i know but all of them) then put the bateries back in and turn on should work if its still turning on by the unit that is
i think problem with your SMPS power supply unit. Modern tv comes with microprocessor unit which control switch on/off functions. Check SMT transformer. Check Voltages power suplpy unit. contact service centre for further rectification