Toshiba 32C110U1

[CraigR]

It seems like I always get the odd ones and never just a replace bad caps fix. Anyway a Toshiba 32C110U1 I got in and was told it was totally dead, well I plugged it in and it cam on fine and I left it on for about half an hour and was fine as all controls worked everything. I shut it off and unplugged it then moved it to another table and plugged back in and now this time it was dead no light or anything. I thought ok when it's warm does not work so I took some freeze spray and got everything nice and cold but still have the same results. It has all the correct voltages at the plug on the power board (3V, 5V, 12V, 24v) I took the power board out and checked solder joints under magnification and looked good and I even pulled out all the electrolytic caps and checked with my ESR70 and all is good so thinking main board??? anything I can test???

[jsog]

Re: Toshiba 32C110U1

It looks like there's a yellow electrolytic peeking out on that inverter board. Did you check those?

[CraigR]

Re: Toshiba 32C110U1

Yes, took cover off and 2 there. check both and are good also.

[paulstef]

Re: Toshiba 32C110U1

(3V, 5V, 12V, 24v)

Are you able these voltages on the boards they are going to? Might be a simple problem with connectors, oxidated contacts etc?

[CraigR]

Re: Toshiba 32C110U1

Checked all connections before posting. All Good.

[paulstef]

Re: Toshiba 32C110U1

Ok, what about the voltages? Do they get to the mainboard?

[CraigR]

Re: Toshiba 32C110U1

Yes, good there also just did that LOL

[CraigR]

Re: Toshiba 32C110U1

Put the TV in garage over night so it would get cold all over and still nothing again. Not sure what made it work the first time.

[TechShui]

Re: Toshiba 32C110U1

Thats bizarre, are you getting any sound, like a pop from the speakers when you try to turn it on?

Im working on one of these same sets and its not powering on either but makes sound.

The only other thread on badcaps seems to indicate a high chance of mainboard failure, Im kind of leaning that way myself on this one.

[CraigR]

Re: Toshiba 32C110U1

No sound or anything.

[budm]

Re: Toshiba 32C110U1

Boy, you are working on two TV at the same time?
So how about the control signals? What do you get at the inverter board connector? Any labels to tell us what the pins are?

[CraigR]

Re: Toshiba 32C110U1

Got about 10 TV's apart right now. I will need to dig it out again.

[CraigR]

Re: Toshiba 32C110U1

Still can't figure this one out. Anybody have any more ideas???

[artstv1]

Re: Toshiba 32C110U1

Sounds like the flash Rom. On the main, they do that.

[Andrew F. Ali]

Re: Toshiba 32C110U1

With the Backlights connected, I would have forced the Pwr Bd ON if Std-By voltage was present. That would rule out the Pwr Bd, Inverter and CCFLs.