The reference T’Con here is for LG 32 inch LCD TV. But, the picture defects can be taken as a reference to LCD TVs of all brands, irrespective of its screen size.
Assy
board plate Defects
Horizontal
block
Vertical
line block
Bright
and Dark Spot
Back-light
defects
Dark
Spot Model The ones of LED
Cause:
LED does not light in.
Horizontal Stain Lamp Models (LCD)
Cause: Burning Lamp mead
Impurity
PCB / T-CON Defects
Abnormal image
NO
IMAGE
Backlight
lights up more does not generate image
T-Con
measurement points
Before
changing a module, check that the voltages of the T-Con board are correct.
If
one of them is changed, check to be sure that the flat cable that goes to the
panel is released.
Check
if it is normal if this does not occur and a defect.
Mounting
the connector (A) 30 Pins in the Arrow Pin (1)
1-12V
enters the Fuse pins 1 to 4 of the Connector (A).
2-
The same is done with the GND, Pins 5 to 8 of connector (A) that are connected in
short.
3-
Only Pin 30, connector (A) enters the voltage of 3.3V
Mounting the connector (B) - 51 pins on the Pin arrow (1)
1- See that 12V power supply is connected directly to the Fuse pins 48 to 51 of connector (B) that are shorted.
2. The same is done with the GND, connected in the pins 45 to 46 of the connector (B) Which are short-circuited.
3- Only Pin 44, of connector (B) enters the voltage of 3.3V
4- You can put a switch to turn the source on and off
Click on the pictures to magnify
