LG 32LX1D will not turn on

[newtothis]

Re: LG 32LX1D will not turn on

i agree with budm meter is set right budm does he need to re install the connectors as he has no resistors to start psu up?

Yes noticed after looking at google images of the DMM, the DMM is not working correctly as above image shows

[Crrose]

Re: LG 32LX1D will not turn on

Ok I guess I will go get another meter. It is set on correct setting, not on the 10A side.
This meter is several years old, maybe they changed now and show the decimal but mine won't unless I set it to a higher level.

[selldoor]

Re: LG 32LX1D will not turn on

Is the battery in it a new one

[Crrose]

Re: LG 32LX1D will not turn on

I'll change the battery out and try again.

[Crrose]

Re: LG 32LX1D will not turn on

Changed battery out with a new one (9.6v on meter). Tested again and now all zeros on CN804 and CN805, CN801 all zeros except ST5.0V still goes to 81 and both 12v show zeros where they were 007 before.

[vinceroger69]

Re: LG 32LX1D will not turn on

have you reconnected the wires between the main board and power supply yet and retested?

[newtothis]

Re: LG 32LX1D will not turn on

I still don't trust the readings from that DMM

[newtothis]

Re: LG 32LX1D will not turn on

DMM also has 200 max on it.. Cant check PFC

[vinceroger69]

Re: LG 32LX1D will not turn on

neither do i to be honest we have all probably had a meter go faulty at some time there cheap enough now so may be worth buying a new one.

[tom66]

Re: LG 32LX1D will not turn on

It has a 600V range.

[newtothis]

Re: LG 32LX1D will not turn on

It has a 600V range.

Oh yes, I am going blind! Still... Don't trust it LOL

[budm]

Re: LG 32LX1D will not turn on

He should get new meter first, but can try using 600V scale on the battery first to see what it will show on the meter.

[Crrose]

Re: LG 32LX1D will not turn on

ok so testing battery on the 600 setting it reads 002, 200 reads 1597, 20 reads 160 and 2000m reads 1.6.

[budm]

Re: LG 32LX1D will not turn on

Get new meter.

[Crrose]

Re: LG 32LX1D will not turn on

Yeah I guess I will. I'll post some more tomorrow after I get new one.

[selldoor]

Re: LG 32LX1D will not turn on

ok so testing battery on the 600 setting it reads 002, 200 reads 1597, 20 reads 160 and 2000m reads 1.6.

They all look ok to me if its a 1.5v battery and you (know)remember where to put the decimal point.
Perhaps if he connected the connector as vince keeps asking it would all be a bit clearer if we get some numbers we recognise.

At a guess the 081 is 8.1v if it always displays 3 digits.

[captgrail]

Re: LG 32LX1D will not turn on

Hi Folks - maybe Crrose got a new tv instead of a dimm?
I am watching this thread with interest as I have the same model LG that recently decided to not turn on . On inspection, I see no blown capacitors but there was quite a bit of dust accumulated especially around the fan. ONE QUESTION, at the beginning of this post the person said no red light at all. My tv displayed a (fainter than normal) blinking red light - no pattern just on/off. Is this the same failure mode? I also want to add I had just started using the HDMI port for a Roku box 2 days prior and the night before it failed I had unplugged it (it was already off) as I sometimes do when leaving for several days. I'm wondering if this could have caused the 5v standby cap an issue? I do remember hearing a little voltage crackle when unplugged. The main fuse seems fine via a continuity test. At any rate I'm going to take a chance on swapping out the 5v standby capacitor since I have the soldering iron and maybe reflowing the other caps. I'm not going to take this in to a repair shop so either I get lucky or the credit card company makes even more interest.... I'd like to try some more tests but I'm a bit scared since this is not my forte - my Dad would have prefered I be barefoot and preg than blessed with technical curiosity but hey, what you gonna do? I really liked this tv it worked great and had a great pic and color and don't like adding to landfill so any suggestions or idea from you kind technical wizards would be greatly appreciated!

[momaka]

Re: LG 32LX1D will not turn on

I'd like to try some more tests but I'm a bit scared since this is not my forte

As long as you have some common sense about what you are doing (i.e. don't stick your fingers everywhere on the power supply while the TV is opened and plugged in the wall), you should be fine. Most decently-built electronics (i.e. not no-name garage-built brands) are also safe against catching fire, so you're covered there as well. Just wear some goggles or safety glasses should you need to perform any voltage measurements when the TV is plugged in the wall. Exploding silicon parts can be cruel to the naked eye sometimes.

[captgrail]

Re: LG 32LX1D will not turn on

Well Thanks for the quick reply Momaka, that increases my confidence a tiny bit but I was kind of hoping for some feedback on the failure mode and findings I posted.

[momaka]

Re: LG 32LX1D will not turn on

If you have a multimter, check voltage at ST5.0V. Should be 5 volts.

Otherwise if you don't have a multimter and would rather not troubleshoot if you don't have to, then just replace those start-up caps mentioned on page 1 and 2 of this thread and roll the dice. Chances are, this will revive your set based on the symptoms you described.