I ha picked up another one of these. Last time it was keep clicking and it would not turn on.
By replacing the main board, it fixed the TV.
Now it's a bit different issue. When I plug it in, it would turn on(click only) and then off and would set a two blinking error code, which is the power supply board error.
There is no backlight turning on.
It seems that It has a BL_Error code, constant 3.3V while it is plugged in.
It doesn't have any voltage at T_con on or T_con 12V.
Here are the voltages that I'm getting:
T_Con_on= 0V
T_Con_Vcc12V= 0V
Dimmer= 0.02V off and 2.95V on
BL_On= 0.01V off and jumps to 0.43V then goes to 0V when on
BL_Error= 3.333V on and off
Reg 12V= 0 off and 12.72V on
Audio 12V= 0V off and 12.73V on
Pwr On= 0V off and 3.3V on
AC_Off_Det= 2.78V off and 2.78V on
STBY 3.3V= 3.3V both ways
Inverter connector
Vcc_12V= 12.67 on and 0V off
FB= 0V on and off
LO= 12.03V on and 0V off
What is interesting, is that I have replaced the main board with the other TV's bad board and it has the same symptom, 2 blink error code. Now I'm thinking, that main board is not bad after all? Why it was constantly clicking and now with this TV doesn't do that?
I have made some pictures with my phone, just to start this thread.
I will make some proper ones tomorrow.
Any help would be appreciated.
By replacing the main board, it fixed the TV.
Now it's a bit different issue. When I plug it in, it would turn on(click only) and then off and would set a two blinking error code, which is the power supply board error.
There is no backlight turning on.
It seems that It has a BL_Error code, constant 3.3V while it is plugged in.
It doesn't have any voltage at T_con on or T_con 12V.
Here are the voltages that I'm getting:
T_Con_on= 0V
T_Con_Vcc12V= 0V
Dimmer= 0.02V off and 2.95V on
BL_On= 0.01V off and jumps to 0.43V then goes to 0V when on
BL_Error= 3.333V on and off
Reg 12V= 0 off and 12.72V on
Audio 12V= 0V off and 12.73V on
Pwr On= 0V off and 3.3V on
AC_Off_Det= 2.78V off and 2.78V on
STBY 3.3V= 3.3V both ways
Inverter connector
Vcc_12V= 12.67 on and 0V off
FB= 0V on and off
LO= 12.03V on and 0V off
What is interesting, is that I have replaced the main board with the other TV's bad board and it has the same symptom, 2 blink error code. Now I'm thinking, that main board is not bad after all? Why it was constantly clicking and now with this TV doesn't do that?
I have made some pictures with my phone, just to start this thread.
I will make some proper ones tomorrow.
Any help would be appreciated.
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