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REFERENCE Flatscreen black screen but have sound

Repairman

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Lg 42 inch no backlight pero may sound, pag ganyan po na trouble nyo kuha lang kayo ng flash light para ma sure kung may display pa,
Sa pag test nmn po gamit kayo ng backlight tester na may metter reading voltage para masukat ang voltage ng bulb, meron kasing 5v 3v na led
Sa pag sukat ng voltage one by one +to-
Sana po ay maka tulong ito
 
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