Cant find this inverter board anywhere!!!
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Re: Cant find this inverter board anywhere!!!
http://www.ccflwarehouse.com/17ccdulaasfo1.html
those are the exact ccfl's and the correct pigtails on it.
found the tech manual for the pannel itself now i get to sift thru it. its in PDF and gotta download it
http://www.4shared.com/get/ZfnTwsNK/...r_TFT-LCD.html
i work in a rather large worldwide manufacturing company - just leavin it at that hahaLast edited by Sammich; 11-18-2010, 10:51 AM.Comment
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Re: Cant find this inverter board anywhere!!!
the inverter with # TBD266L REV1.0 EAO2B266 has a power board with the numbers:
BT-R08LDNQ
Bien GM5221-02-R6
REV:06
2006/01/09
the other monitor that has the TBD266LR-1inverter has a power board with the numbers of:
Bien
BT-R06LANQ
2005/06/22
GMZAN3_SL_BIEN_17_R5
the inverters are not seperate, thier all on one PCB board theres what i belive to be 2 seperate circuits that are tied at the beginning so to speak so one power cable powers both of themComment
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Re: Cant find this inverter board anywhere!!!
like this oneAttached FilesComment
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Re: Cant find this inverter board anywhere!!!
alright got a few more bad monitors of the same type, managed to cobble together one that works fine.
Since i last posted i contacted a whole bunch of people (including advantech, tdk and chunghwa) none are willing to help, tdk said they specialty built those inverters specifically for advantech and are not allowed to give out ANY information in regards to them(somehting tells me they are also in military use hence secrecy) because advantech was trying to help but didnt have any parts to send out either. Soo that would be why me or any of you guys could ind any info on them.
Anyways i took the good inverter board and good interface/powersupply card and put them into a non working pannel thinking its gotta be one or the other. Well i was wrong. The same symptoms are there with known good inverter and powersupply/interface.
only thing else connected is the LCD itself.
Symptoms include: When first turning it on, screen lights up a little bit(to that typical LCD black) the windows desktop pops up for 1-2 seconds then completely shuts off. When its briefly lit it appears to be equally lit. Sometimes it will have a pinkish half second flash right before it shuts off. Does this indicate bad CCFL bulbs??Comment
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Re: Cant find this inverter board anywhere!!!
alright got a few more bad monitors of the same type, managed to cobble together one that works fine.
Since i last posted i contacted a whole bunch of people (including advantech, tdk and chunghwa) none are willing to help, tdk said they specialty built those inverters specifically for advantech and are not allowed to give out ANY information in regards to them(somehting tells me they are also in military use hence secrecy) because advantech was trying to help but didnt have any parts to send out either. Soo that would be why me or any of you guys could ind any info on them.
Anyways i took the good inverter board and good interface/powersupply card and put them into a non working pannel thinking its gotta be one or the other. Well i was wrong. The same symptoms are there with known good inverter and powersupply/interface.
only thing else connected is the LCD itself.
Symptoms include: When first turning it on, screen lights up a little bit(to that typical LCD black) the windows desktop pops up for 1-2 seconds then completely shuts off. When its briefly lit it appears to be equally lit. Sometimes it will have a pinkish half second flash right before it shuts off. Does this indicate bad CCFL bulbs??Comment
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Re: Cant find this inverter board anywhere!!!
1) bad caps
2) bad inverter transformer
3) bad ccfl
4) bad ccfl wiring
5) something wrong in the sense circuitry
A pinkish hue indicates a dying ccfl tube/bulb.--- begin sig file ---
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We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.
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Re: Cant find this inverter board anywhere!!!
yup it turned out to be a dead cfl bulb, took that monitor apart and hooked up the ccfl's to a working oneand viola! works great.
Now i have 2 working monitors, another one the psu or interface is screwy (same symptom, swapped with a known good board and monitor works, so gotta be in this board)
got 2 bad inverters
a loose cap on another psu board
an lcd with probably dead ccfl bulb
no more good touch screen overlays (actual touch sense part) one is shaddered other partially melted...
time to start cobbiling!
thanks for all your help so far!Comment
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--- begin sig file ---
If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.
We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.
Please do not post inline and offsite as they slow down the loading of pages.
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Re: Cant find this inverter board anywhere!!!
Sammich,
For Advantech, as this vendor has long product lifetime for industrial product You can just buy spare parts directly from Advantech.
Depend by inverter size it costs about 10-20 EUR in Europe.
Now handy list:
TPC-1570
P/N: 1254000880 Inverter DC-AC 15" 2 Lamp LCD T TBD291L TDK
TPC-1780 / TPC-1780
P/N: 1254000882 Inverter DC-AC 17" 4 Lamp LCD TBD266LR-1 TDK
FPM-3170
P/N: 1254000279 Inverter DC-AC 17" 4Lamp LCD TBD266LR-1 TDK
FPM-3191
P/N: 1254100500 INV DC to AC 4L CCFL (LV-200-A) for FPM-3190
Originally Posted by Sammich View Post
Sometimes it will have a pinkish half second flash right before it shuts off. Does this indicate bad CCFL bulbs??
So instead of fixing inverter only You have to focus on LCD backlight too. Replace raw CCFL lamps or whole LCD. Advantech also is selling spare LCD.
TPC-1570
P/N: 1330000018 LCD AUO G150XG01V0 XGA 15" LVDS 350nit 50K
TPC-1770 / TPC-1780
P/N: 1330000185 LCD AUO M170EG01 VD SXGA 17" 2chLVDS 300ni
FPM-3171G
P/N: 1330000705 LCD CPT CLAA170EA07P SXGA 17" LVDSComment
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