Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Toshiba 50JH9UE Projection
I need Toshiba 50JH9UE Projection tv service manual ,Set in st-bye mode,Tested all power supply volts looks good Now i need this manual.
Thanks in advance.
Imran Khan
Life L.E.D VS CCFL
This is still an iffy subject but finally some light was shed when I did more research. I found something incredible. LED's offer the same life expectancy then CCFL's for the most part in LCDs. Keep in mind these life expectancies are for different applications not just...
First you may need to update your self,In big Screen L.E.D TVs Like L.G 42LH90 have to controlled L.E.D"s from Inverter Circuit from 27.5 volts :)
I let you know that i am working on E.book of L.C.D and L.E.D T.v Repair and i have good source of information topic like that.
Now i told you more...
For Test you can use old LCD monitor inverter board for testing as i can use broken l.c.d panel monitor circuit board as a C.C.F.L tester.
You can got it from scrape of l.c.d monitors.
---------- Post added at 01:59 ---------- Previous post was at 01:59 ----------
For Test you can use old LCD...
1.Try to Control Screen volts from FBT G2
2.Replace 22uf 250v in 180v line
3.Check ABL line circuit from FBT(may be open circuit resisitor like 180k ohm)
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
