Pioneer lx6090 2 x flashing red light at start up

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Take it out of circuit and test it again see if its shorted, then throughly test the others buddy. Normally on sus boards its on transistors that fail.

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

I have measured the transistor and i have only find one faulty,
the one of the right near the ANP-2214-B number D2417
Is it possible that this is the only one that is faulty or could there be more, i tested them all and only this one is shorted

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Nice easy fix there You might not need a new board if you know how to change a few IGBTS but up to you.

[tom66]

Re: Pioneer lx6090 2 x flashing red light at start up

Y-drive is shorted then. I'd test across the Y-drive on ohms mode (with it disconnected from the power board) and see what you get to confirm but this seems to indicate that the Y-drive has failed. It's a reasonably common failure (of the few failures this set has.)

Remember to get the 60" board. The 50" board won't work correctly, without significant modifications.

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

I measured now on VDC and have following measurements:
- With Ydrive connected 0V
- With Xdrive connected 210V
- With X and ydrive connected 0V
- Vadr 75VDC

Do i need to discharge something to take out the ydrive plate and for measure the transistors ?

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

You need to use Vdc not Vac mode.

OK, i will try again than this evening

[tom66]

Re: Pioneer lx6090 2 x flashing red light at start up

You need to use Vdc not Vac mode.

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

S/C means short circuit, look up on youtube how to test transistors for short circuit might be worth going over the Ydrive and Xdrive testing the big transistors on them they normally fail first.

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

what means S/C , yes multimeter have a diode mode, its a fluke

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Ok before you do, do you know how to check for S/C and does your meter have a diode mode ?

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

I tried again and with the ydrive alone connected it stay at 0 VAC,
With the xdrive alone connected 20 - 25VAC
With both disconnected around 20 - 25 VAC
With both connected stay it at 0V

Maybe is my multimeter not fast enough to read as the other person could read 208V on the points, so should the ydrive assy need to be replaced ?
The numbers on the board are:
ANP-2214-B and AWV2541-D-60F

Should these boards works also from a lx5090 as it is only a stamp on the board with 50 or 60 on

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Ok so with Xdrive it was 0 ? Also plug Ydrive back in and check what it goes too.

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

Now with both disconnected it doesn't go higher than 20VAC , the same as with both connected but the right power board from the psu where the main voltage is connected to is still making a noise sound when powered up.

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Ok what about when Xdrive is unplugged ? Does it rise for a second ?

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

No, i have no Vsus with the ydrive disconnected, there is only one led on the mobo that will flicker the same times than the red led outside on the front

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Ok so with Ydrive disconnected you dont get any Vsus at all ? Also these sets when they lock out into an error show a red Led on the mobo and when Ydrive is disconnected from the Psu tv flashes 3 Red because it detects Ydrive isnt plugged in.

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

I have tried to mesure the values like on this thread https://www.badcaps.net/forum/showthread.php?t=43882
I have opened the back and did the mesures but i didn't mesure anything, you can hear some noise from the psu. When i took out the y drive connecter it still the same, no values and the psu make the same noise.
When i put the power on with the y drive disconnected the red flashed 3 times instead of 2 and also the intern red led (i think on the mainbord)

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

No they dont buddy.

[kamei10]

Re: Pioneer lx6090 2 x flashing red light at start up

OK i will keep you updated. Have this type also the trap switch or are these switches only in the older types ?

[ReeceyBurger123]

Re: Pioneer lx6090 2 x flashing red light at start up

Normally just a lose connector going to the panel will cause that on the other one Keep us updated.