Forum > LCD TV forum

Technika LCD22DVD Backlight On Voltage

(1/4) > >>

scooby-doo:
No backlights coming on everything else working...it has a small 12v inverter (IN220402) and main board (B.LT712C) when testing "B/L ON" goes to 1.7v when tv is turned on...should this be more around the 3-5v range???

Thanks in advance

sparky:
hi
if there are some 9pf caps 3 kvw can cause fault also
if one of tubes down need a ccfl tester to check
dave

jimca007:
dont know if they're still using the same psu but loads of these went down with bad caps 2 16v 1000uf if i remember correctly

jimca007:
remember to always see the whole picture before going forward see attachment

dougc:
Nice one Jim.

Navigation

[0] Message Index

[#] Next page