iMac A1419 820-00292-A schematic and boardview thanks

[inspirim]

Looking for schematic and boardview
Model: A1419 EMC No: 2834
Serial: C020F31AGG7L
Motherboard: 820-00292-A
defect: no backlight
thanks to all

[mon2]

Do you see the graphics on the LCDs? What is the history of this machine? Was it opened before?

A common fault is that on the backside of the LCDs - lower left and lower right corners is the feed for the backlight voltage. Often, these SMD connectors break off the PCB and kill the backlight. I have posted a detailed view of the same fault and repair somewhere in this forum. If I can locate the link, will update it here. Summary is that the SMD connector gets bumped during disassembly, etc. and this fault will occur. We repaired this issue for another tech in the city. Need a steady hand and a nice needle tipped soldering iron to wire it back.

You can study this YT which is the same. Gently lift off the tape and review if the connector is loose or not. Just assuming that you have the same (very common) fault.

https://youtu.be/LM3zW35BC20

[mon2]

BTW - we only had to repair the SMD connector without further teardown of the LCD. It can be done.

[inspirim]

Thanks for your cooperation, the display works perfectly (it was tested on another iMac) I remind you that it is an iMac from the year 2015, the power supply is missing on the inverter circuit, a diagram and boardview would be needed.
thanks to everyone