Re: TV Backlight on in standby - can't turn on
Blue IC
IC line 1: 1117
IC line 2: 6E01
Pin 1: 0v
Pin 2: 1.29v
Pin 3: 4.96v
So Pin 2 is supposed to be Pin 1 + 1.25v It's off by .04v
Red (next to blue) IC
IC line 1: LD33
IC line 2: L627
Pin 1: 0v
Pin 2: 3.27v
Pin 3: 4.96v
I'm not sure I found the right datasheet but it says it's a 3.3v regulator
Red IC (one across board)
IC Line 1: LD33
IC Line 2: L627
Pin 1: 0v
Pin 2: 3.27v...
jim341
New Member
Last Activity: 10-15-2012, 09:31 PM
Joined: 10-14-2012
Location: Philadelphia, PA
-
Re: TV Backlight on in standby - can't turn on
I've uploaded the pictures and included one for the power connector to the video board.
The power connector is
12v - measured 12.1v
12v - measured 12.1v
12v - measured 12.1v
GND
GND
GND
DIM - measured .02v
BLK - measured 2.0v (I think this is what has the backlight on)...Leave a comment:
-
TV Backlight on in standby - can't turn on
The tv is a Trutech 19in PLV16190 and when it's plugged in the backlight comes on shortly after while the TV is still in standby. The power button does nothing (none of the buttons do anything). The power supply is putting out 12.1vdc. I'm not an expert but I have some knowledge in troubleshooting electronics. Could someone point me in the right direction?
Power board: LS1904006A
Video board: PLV1619-02-01
No activity results to display
Leave a comment: