Hey everyone - I have a Samsung UN58J5190 with these symptoms: Does not power on, has standby light, standby light blinks 5 times after pressing "power on." When plugged in the power supply is making a very faint ticking sound, and this goes away when pressing power on.
Following instructions from the great team here in recent posts for Samsung with similar symptoms, I did the following tests:
I tested with mainboard disconnected from power supply - backlights do not come on (symptoms no change/5 red blinks)
I tested with T-Con disconnected from one side at at time, and completely from MB (all separately) and backlights do not come on (symptoms no change/5 red blinks)
Multimeter:
Power Supply to Main Board:
Plugged in and power off > to power on:
A13V 1 : 11.6 > 12.8
A13V 3 : 11.6 > 12.8
A13V 5 : 11.6 > 12.8
A13V 7 : 11.6 > 12.8
GND 9 : 0.0
OD-UD 2 : 2.31 > 2.31
BLU-PWM 4 : 3.26 > 3.26
PWR ON/OFF 6 : 3.90 > 3.90
GND 8 : 0.0
GND 10 : 0.0
Power Supply to LED
plugged in to > press power on:
9 D2-: 00.1>0.36
8 D2-: 00.1>0.34
7 NC:
6 S+: 00.1 > 00.1
5 NC:
4 S-: 00.1 > 00.1
3 NC
2 D1+: 188.6 > 324~344~352 (repeating back to 324 and up to 352)
1 D1+: 188.6 > 323~348~354 (also repeating)
Pics to follow and as always - appreciate the help
Following instructions from the great team here in recent posts for Samsung with similar symptoms, I did the following tests:
I tested with mainboard disconnected from power supply - backlights do not come on (symptoms no change/5 red blinks)
I tested with T-Con disconnected from one side at at time, and completely from MB (all separately) and backlights do not come on (symptoms no change/5 red blinks)
Multimeter:
Power Supply to Main Board:
Plugged in and power off > to power on:
A13V 1 : 11.6 > 12.8
A13V 3 : 11.6 > 12.8
A13V 5 : 11.6 > 12.8
A13V 7 : 11.6 > 12.8
GND 9 : 0.0
OD-UD 2 : 2.31 > 2.31
BLU-PWM 4 : 3.26 > 3.26
PWR ON/OFF 6 : 3.90 > 3.90
GND 8 : 0.0
GND 10 : 0.0
Power Supply to LED
plugged in to > press power on:
9 D2-: 00.1>0.36
8 D2-: 00.1>0.34
7 NC:
6 S+: 00.1 > 00.1
5 NC:
4 S-: 00.1 > 00.1
3 NC
2 D1+: 188.6 > 324~344~352 (repeating back to 324 and up to 352)
1 D1+: 188.6 > 323~348~354 (also repeating)
Pics to follow and as always - appreciate the help
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