Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Ok, full picture of the power board please

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Ok, full picture of the power board please

Attached

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Why are the covers missing from the two relays near the bottom of the power supply?

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

I pulled them off when I was following Nicholas's info in the previous thread...

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Prolly best to put them back on. Do they ever engage?

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Prolly best to put them back on. Do they ever engage?

SR80 does... It will close when unit is plugged in. When unit is unpluged, SR80 will open, then close, then open again...

SR81... Doornail dead...

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Ok, can you find some way to measure the DC volts across the two large 450V caps in the top right of the power supply? Maybe try tracing the pos and neg to nearby pins and probe there. Danger -- high voltage!

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Ok, can you find some way to measure the DC volts across the two large 450V caps in the top right of the power supply? Maybe try tracing the pos and neg to nearby pins and probe there. Danger -- high voltage!

Need both?? Or will one suffice???

Never mind. They are in-line... I found the nearby pins.. POS is one side of the FUSE and the NEG goes to a jumper set.. One sec

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Just one, I suspect they're in parallel.

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

On the 150uf 450v Caps, the voltage is 166.xV

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

Does this change at all when you first power it up?

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

There doesn't seem to be any difference between "plugging in" and "powering up"..

It's at 3V when first hooked up..

When I plug it in, it shoots up to 166.xV and there is no change if I push the power button..

[Michale32086]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

I was leaning more towards the power board being the problem.. But with the blown cap and no voltage on the inverter board fuses, I am rethinking..

[tom66]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

I'm fairly sure this is a power board fault.
I need to find a schematic of the board.

[snapcaseacilec]

Re: Toshiba 46xv645u 1-Blink 2-Blink 3-Blink Upon Power Up..

was a schematic ever found??? I'd like to know.