How should an efficient power supply (BN44-00458A) behave in the TV set after disconnecting the power supply to the motherboard ?. With me every 4 seconds there is a voltage impulse, the backlight will blink and so on. 5V voltage is correct. TV after overvoltages in the network.
In one of the posts about a similar power supply, I read that after disconnecting the motherboard, the power supply works constantly, the backlight works and that's what I was asking about. I just wanted to make sure this is the case. The fact that there is a short circuit on any branch of secondary voltage is known by itself. Without a pattern of looking for a fault, they do not make much sense when someone is in a hurry.
Read and understand Link Then look for similar info. (about IC used there) in this forum. It is slowly being repaired on the workbench of this power supply BN44-00458A. Link - stby ICS801s STRA6052M 5.3V
After the on / of H administration should appear B5V = 5V B13V = -13V, AMP = 13V and 1.3V 3.2V 2.5V 5V on DC / DC Main, respectively
helpful from the forum - BN44-00428B / BN44-00351B - BN44-00428B PD55B2_BHS (FA5591N SQD3011K FSFR1800XSL SLC4011M)
ps In S models from the "6" series
Quote:
First flash-Standby OK. Second flash-Low voltage switch signal. Third flash-Low voltage level check. Fourth flash-VS switch signal OK. Fifth flash-VS signal OK. Sixht flash-high voltage is an OK panel.
