Element FLX-3210 no power

[mopar4u]

Re: Element FLX-3210 no power

bk_on and bl_on are the same thing. Often they are labeled differently by different manufacturers. That pin is what turns the backlights (BL) to turn on. The main board waits for the command to turn the TV on and if all is well, it sends the signal to BL_ON.

A nice closeup picture of the white connector would be great. Close enough that we can read the labels.

I believe I found what your referring to. I put one of my DMM leads on this pin, where do I put the other lead? I can't test it until I get new capacitors.

[retiredcaps]

Re: Element FLX-3210 no power

pulled the two 10uf 450v capacitors. One of them I pulled the lead out while trying to remove it from the board. The other I test and I'm getting .140nF.

0.140nF is bad.

Pulled one end of D10 diode out, with the positive lead near the heat sink I get open, with the negative lead near the heat sink I get .452 VDC

That diode is good.

[budm]

Re: Element FLX-3210 no power

Another case of bad cap looks normal.

[mopar4u]

Re: Element FLX-3210 no power

Another case of bad cap looks normal.

i hope your right

[mopar4u]

Re: Element FLX-3210 no power

UPDATE: I put new caps in, now the white light turns on but no picture or startup "element" screen. The flashing red light on the power supply doesn't flash anymore. Progress is being made but not completely fixed yet. What next?

[tom66]

Re: Element FLX-3210 no power

Checked everything is connected properly?

[selldoor]

Re: Element FLX-3210 no power

test the voltages on the connectors. Meter on vDC20 or autorange. Black pin on a ground screw test each pin and report voltages against pin number a legend.
eg
Pin1 12v 11.59

You can do this test in various steps all of which give clues.
First with just the power supply plugged into the mains
Second with main board connected.
Third Main board connected and just as you press the on button. ( Just need to check "Pson" "B/L" ) for changes.

[mopar4u]

Re: Element FLX-3210 no power

Checked everything is connected properly?

I'm questioning myself as well. I took a picture, there is a connector in the lower left next the red led light, I can't find a cable for it that goes there.

test the voltages on the connectors. Meter on vDC20 or autorange. Black pin on a ground screw test each pin and report voltages against pin number a legend.
eg
Pin1 12v 11.59

You can do this test in various steps all of which give clues.
First with just the power supply plugged into the mains
Second with main board connected.
Third Main board connected and just as you press the on button. ( Just need to check "Pson" "B/L" ) for changes.

Thanks, stay tuned for results.

[selldoor]

Re: Element FLX-3210 no power

I notice the board is not screwed down - some sets need to be to work correctly or you can provide a ground connection.

[mopar4u]

Re: Element FLX-3210 no power

I notice the board is not screwed down - some sets need to be to work correctly or you can provide a ground connection.

thanks for the input, put all the screws in, no change.

[mopar4u]

Re: Element FLX-3210 no power

test the voltages on the connectors. Meter on vDC20 or autorange. Black pin on a ground screw test each pin and report voltages against pin number a legend.
eg
Pin1 12v 11.59

You can do this test in various steps all of which give clues.
First with just the power supply plugged into the mains
Second with main board connected.
Third Main board connected and just as you press the on button. ( Just need to check "Pson" "B/L" ) for changes.

Not 100% sure on exactly what your looking for, I started by doing this. Small connector in the below photo and large connector in the below photo I'm assuming is what your talking about. In order to turn the tv on and off both must be connected. So with both connected going left to right starting with the smaller connector I back probed the wire. n/w = no wire
0,n/w,4.9,n/w,n/w,3.2 .......... 24.9,0,0,0,0,11.9,n/w, 5.13,4.8

Not sure what to do next for testing voltages.

[mopar4u]

Re: Element FLX-3210 no power

UPDATE!! Got it working!! I removed the metal shrouds that the power supply and main board sit on, I found the cable that connects to the tconn board disconnected. Now that I think about it, the previous owner did say he snooped around in an attempt to fix it, he must have disconnected this cable. Turns out it was the two capacitors that DID NOT show signs of bulging or leaking. Thanks for everyone's help and input. I now have my tv for the garage.

[budm]

Re: Element FLX-3210 no power

Glad you got it working, great job finding the disconnected LVDS cable.

[capkid]

Re: Element FLX-3210 no power

I've fixed a similar power supply in a Polaroid TV. I had to replace 10 HEC caps that were not bulging but had high ESR. You may have others you haven't discovered yet, so it might not be a bad idea to replace all the lower voltage caps to prevent a future catastrophic failure.