Sharp Aquos blinking error help needed

[Topcat]

Re: Sharp Aquos blinking error help needed

nomoresonys and ReeceyBurger123 - Enough!!

The next argumentative post in this thread will result in an infraction.

Or ban...If I get one more reported post or reported PM from either of you, you're both history. Put eachother on ignore and knock it off.

[Soltys]

Re: Sharp Aquos blinking error help needed

Ok, Soltys, please check the voltage across the 450V capacitor.

This is a large capacitor on the PRIMARY (DANGER) side of the power supply. Your volt meter will need to be on a high DC voltage range, red probe one end of cap, black on other end.

Do not touch the two leads together and do not touch anything on the primary side with any part of your body...

We are expecting around 320V in standby, ~390V running.

We got 322v in standby, when plugged in it peaked at 355v

[ReeceyBurger123]

Re: Sharp Aquos blinking error help needed

Is there a way we can force the psu on and test it with out the mainboard connected, nothing tests shorted in the pfc section, here is a photo of the connectors.

[tom66]

Re: Sharp Aquos blinking error help needed

The PSU is being turned on by the main board already, if you want to force it on you could do so with a ~100-470 ohm resistor from 5V STBY to POWER ON.

[ReeceyBurger123]

Re: Sharp Aquos blinking error help needed

The PSU is being turned on by the main board already, if you want to force it on you could do so with a ~100-470 ohm resistor from 5V STBY to POWER ON.

Ok we will try it and see if the other voltages come up thanks.

[Soltys]

Re: Sharp Aquos blinking error help needed

Tom, would it help at all that the guy we had it off said it was working fine and he took it to Switzerland and it was still working but then stopped whilst over there and started with this blinking error code, would that have anything to do with it or am I just clutching at straws?

[tom66]

Re: Sharp Aquos blinking error help needed

Tom, would it help at all that the guy we had it off said it was working fine and he took it to Switzerland and it was still working but then stopped whilst over there and started with this blinking error code, would that have anything to do with it or am I just clutching at straws?

Unlikely... Switzerland uses 230V like us, probably just a coincidence.

[ReeceyBurger123]

Re: Sharp Aquos blinking error help needed

Just an update we repaired the tv by swapping the power board as we had another on-hand, the tv came straight back to life will try to diagnose the old board and get that one running. Thanks everyone for the input.

[michael dranfield]

Re: Sharp Aquos blinking error help needed

replace R7832 , R7833 , R7834 , your PFC voltage is too low. Value must be correct 511k.

[speedypro]

Re: Sharp Aquos blinking error help needed

Just an update we repaired the tv by swapping the power board as we had another on-hand, the tv came straight back to life will try to diagnose the old board and get that one running. Thanks everyone for the input.

Sup, Reecey? Found the issue with the old board? My PFC is 390V~ so all good there. I have that blinking yellow and red light, no sound, display nor backlight. No power to inverter either.

[dskall]

Re: Sharp Aquos blinking error help needed

I need to start looking at dates on posts. Only 2 years behind.