littleelm1966
New User
Jul 8, 2016, 1:40 AM
Post #1 of 2
(858 views)
Shortcut
|
|
Philips 49PFL4609F7
|
Can't Post
|
|
HI
NEW IN THIS FORUM.
I HOPE SOMEBODY CAN HELP WITH THIS CASE.
I HAVE A PHILIPS LED TV WITH POWER PROBLEM.
THE UNIT DOESN'T TURN ON.
I FOLLOW THE IDEAS FROM ANOTHER FORUM ABOUT HOW FORCE TO TURN ON THE POWER SUPPLY WITHOUT MAINBOARD CONNECTED.
BUT FIRST LET ME EXPLAIN SOMETHING.
AS SOON I OPEN THIS TV, I NOTICED VOLTAGES ON METAL RAILS ALONG POWER SUPPLY HAS LOW VOLTAGES.
AFTER FORCE TO TURN ON THE TV (SHORT P_ON WITH 3.3V WITH 1K RESISTOR) THE TV TURN ON WITHOUT BACKLIGHT.
I FORCE SAME TIME TO TURN ON BACKLIGHT WITH 3.3V AND B_SW
BUT STILL NO BACKLIGHT.
TODAY, I TRY TO RECHECK THE BACKLIGHT SWITCH BUT I NOTICED THAT THE VOLTAGES AROUND POWER SUPPLY ARE VERY LOW, NO EVEN 1V.
MY QUESTION IS
DO I SCREW THE POWER SUPPLY SHORTED P_ON AND 3.3V??
WHAT DO I HAVE LOW VOLTAGES?
I DON'T HAVE A CLUE WHAT I DID IT WRONG.
|
FORUM
SEARCH
WHO'S 
LOG 
RULES