Cant find this inverter board anywhere!!!

[Sammich]

long story short ive been stalking here for a year and finnaly joined.

anyways i cant find this inverter board:

TDK TBD266L REV1.0 EAO2B266TR also has E168066

has 2 power transformers for 4 ccfl's, id be happy if i could find just the power transformers, the only markings i see is this string of numbers:

AI XT-S20240-2017 0645

they are rectangle in shape exactly the size of a U.S. postage stamp and ive had zero luck finding them...

i actually have 2 of these monitors with the same problem (one shuts off after a second but can dimly see the desktop so inverter went kaput, other if its cold it works good, then after about 5 minutes starts flickering then really bad flickering then shuts off. can turn it back on but doesnt stay on longer than 5 sec.)

the other monitors power inverter has these numbers:

TDK TBD266LR-1 EA12B266T

i DO NOT know who or what model the monitor really is (its in a touch screen made by Advantech) and i cannot take pictures so this is gonna be an invisible needle in a haystack...thanks in advance!


edit: found out who makes it:

chunghwa
claa170ea 07p
nx1ffgae 040

[sabre504]

Re: Cant find this inverter board anywhere!!!

Hi if i may suggest type into your search engine this number E168066
and do an images search i did and it shows several boards
as you know what it looks like you may be able to copy and paste it onto your next post and someone will recognise it and be more able to help you
There are lots of really good and helpful people here but they will need a pic of some sort to best help good luck

[shovenose]

Re: Cant find this inverter board anywhere!!!

stick a fan in there on the one that works when cold. how long does it stay on then?

[Sammich]

Re: Cant find this inverter board anywhere!!!

Hi if i may suggest type into your search engine this number E168066
and do an images search i did and it shows several boards
as you know what it looks like you may be able to copy and paste it onto your next post and someone will recognise it and be more able to help you
There are lots of really good and helpful people here but they will need a pic of some sort to best help good luck

I just looked, doesnt look anything like those. has a flat 5 pin connection in the center of a board about 8 inches wide by 1.5 deep there are 4, 2 pin conectors for the bulbs, 2 on each 1.5" long side.

the left side is a flipped mirrored image of the right side.

[Sammich]

Re: Cant find this inverter board anywhere!!!

stick a fan in there on the one that works when cold. how long does it stay on then?

it does this when there is no case on it at all and standing up in 66.8*F room air. i even took off the plastic finger shield that covers the high power areas to see if that would help. didn seem to...
gonna try freezing it in awhile and see what it does

[shovenose]

Re: Cant find this inverter board anywhere!!!

NO DONT FREEZE IT!
thatll be bad for the solder joints...talk bout solder joints have tried resoldering random compoonents on the inverter to see if that helps? possibly the soldering was bad and the difference in temp is causing stuff to expnd/contract, causing solder joints to open

[Sammich]

Re: Cant find this inverter board anywhere!!!

NO DONT FREEZE IT!
thatll be bad for the solder joints...talk bout solder joints have tried resoldering random compoonents on the inverter to see if that helps? possibly the soldering was bad and the difference in temp is causing stuff to expnd/contract, causing solder joints to open

lol ok havent froze it yet when i say that i have stuff in a aerosal can thats specifically for this, i have resoldered components i can get to with no luck

did notice one of the transformers buzzes along with the flicking.

[shovenose]

Re: Cant find this inverter board anywhere!!!

have you reflowed (basically resoldered) all of the "pins" of the transformer?

[bonney]

Re: Cant find this inverter board anywhere!!!

That will be a TPC-1770H

[Sammich]

Re: Cant find this inverter board anywhere!!!

have you reflowed (basically resoldered) all of the "pins" of the transformer?

yup

[Sammich]

Re: Cant find this inverter board anywhere!!!

That will be a TPC-1770H

the board or the transformers???

ssearched and u mean the model # for the screen.

Well its an advantech FPM-3170G-UBE and the other is a FPM-3171G-UBE

[PCBONEZ]

Re: Cant find this inverter board anywhere!!!

Hi if i may suggest type into your search engine this number E168066

That number is not likely to tell you anything useful and there's a good chance it it will send you the wrong way.
It's a number Australia requires by Law to be on certain kinds of electronic imports.
All it tells you is -where- [what factory I think] the board was built and by -who-.
There may be [and probably are] tens of dozens of different PCB's [including motherboards] with that same exact number on them.
- Not useful for board model # ID at all.
.

[PCBONEZ]

Re: Cant find this inverter board anywhere!!!

Chunghwa makes LCD panels.

This seems to use the same inverter.


I think your screen is an Advantech screen with a Chunghwa panel and a TDK inverter.

Inverters listed as TBD266L, TBD266L-1 are probably the same [rev 1] and TBD266LR-1 is likely just an engineering change [for example an upgrade to Lead Free or something similar] and physically/functionally interchangeable with the older numbers.
.

[PCBONEZ]

Re: Cant find this inverter board anywhere!!!

Doc I linked to before says Advantech used the following screen.
AU OPTRONICS [AUO] M170EG01
But it doesn't say which revision/version. [Might be written on it or a sticker somewhere.]

TDK has changed their Part Numbers but they show the current products that work with AUO screens here:
http://www.tdk-components.de/en/prod...l/index.php#50
CXA-0547
CXA-46012PJ106
[It's probable either one will work but I'm not sure.]

If you rummage through this while looking at your screen you should be able to figure out which version you have and using the inverter specs figure out which you need.
Once you have a current PN you can cross reference to other brands of inverter for more options.
http://www.google.com/#sclient=psy&h...790a4486b7f45f

Once you know for sure which one, you can buy inverters at Mouser [and the like] these days.

.


.

[kc8adu]

Re: Cant find this inverter board anywhere!!!

pictures can be worth 1000 words.
since this appears to be a 2 channel unit look for difference between the 2 sections.

[PlainBill]

Re: Cant find this inverter board anywhere!!!

pictures can be worth 1000 words.
since this appears to be a 2 channel unit look for difference between the 2 sections.

Agreed. Trying to troubleshoot this problem without pictures is about as productive as masturbating with sandpaper.

PlainBill

[Sammich]

Re: Cant find this inverter board anywhere!!!

Chunghwa makes LCD panels.

This seems to use the same inverter.


I think your screen is an Advantech screen with a Chunghwa panel and a TDK inverter.
Inverters listed as TBD266L, TBD266L-1 are probably the same [rev 1] and TBD266LR-1 is likely just an engineering change [for example an upgrade to Lead Free or something similar] and physically/functionally interchangeable with the older numbers.
.

yup exactly whats going on here.

i was hoping the inverter boards would be the same BUT they arent. they look the same with a few components diferent but the major difference is one has a 7 pin connector while the other is a 5 pin...(TBD266L rev 1.0 is 5 pin)

that CXA-0547 looks like it could be the one but i measured mine compared to the dimentions on the drawing to see how close it was but its not very close at all. not that space is really an issue here theres tons of it inside


i know i know about the pictures but where i work i am not allowed to take pictures let alone possess a camera for any reason. we are allowed to have cellphones that have cameras but if we get caught taking a picture its immediate walking you out.

[PCBONEZ]

Re: Cant find this inverter board anywhere!!!

Agreed. Trying to troubleshoot this problem without pictures is about as productive as masturbating with sandpaper.

PlainBill

Wouldn't know.
I haven't tried that.

[PCBONEZ]

Re: Cant find this inverter board anywhere!!!

Yet.

[PCBONEZ]

Re: Cant find this inverter board anywhere!!!

yup exactly whats going on here.

i was hoping the inverter boards would be the same BUT they arent. they look the same with a few components diferent but the major difference is one has a 7 pin connector while the other is a 5 pin...(TBD266L rev 1.0 is 5 pin)

that CXA-0547 looks like it could be the one but i measured mine compared to the dimentions on the drawing to see how close it was but its not very close at all. not that space is really an issue here theres tons of it inside


i know i know about the pictures but where i work i am not allowed to take pictures let alone possess a camera for any reason. we are allowed to have cellphones that have cameras but if we get caught taking a picture its immediate walking you out.

See if you can find specs for the panel itself. [Specifically the CCFLs]
Should give info leading to compatible inverters.
.