The Samsung panel is S42AX-YB03
With the main disconnected (power supply has auto-on) the issue persists.
The screen will initialize and then a white flash appears on the L-viewing side before it shuts off. The set has to be unplugged to come back on. The MICOM riser board in the power supply then begins to blink once every 2-3 sec.
Setup A: With the PSU and CTRL board isolated (only AC and wire harness connecting PSU and CTRL board). The issue remains unless I remove the VS_ON pin from the CTRL board. The power supply will stay on with only 5v and 12v rails active.
Setup B: With the power supply connected to both y/x main boards and all ribbon cables connected to the CTRL board EXCEPT the ribbon going to the Y-Main, the power supply will power on. Vs, Va, Ve, Vg, Vsc are all up and running.
I just do not know what to look for now as far as what could be the issue. Mainly, I do not understand how to interpret that MICOM board.
Also, the CTRL board has been replaced with no improvement.
With the main disconnected (power supply has auto-on) the issue persists.
The screen will initialize and then a white flash appears on the L-viewing side before it shuts off. The set has to be unplugged to come back on. The MICOM riser board in the power supply then begins to blink once every 2-3 sec.
Setup A: With the PSU and CTRL board isolated (only AC and wire harness connecting PSU and CTRL board). The issue remains unless I remove the VS_ON pin from the CTRL board. The power supply will stay on with only 5v and 12v rails active.
Setup B: With the power supply connected to both y/x main boards and all ribbon cables connected to the CTRL board EXCEPT the ribbon going to the Y-Main, the power supply will power on. Vs, Va, Ve, Vg, Vsc are all up and running.
I just do not know what to look for now as far as what could be the issue. Mainly, I do not understand how to interpret that MICOM board.
Also, the CTRL board has been replaced with no improvement.
Attached Files