[[https://support.lenovo.com/us/en/solutions/pd500363-lenovo-g34w-10-monitor-overview|Lenovo G34w-10]]

This curved display just stopped working.

I opened it and saw that the so-called T-CON board wasn't outputting any voltages. Most probably the main chip (SM4191A) was dead, but I still ordered a new board.

After replacing the board, the monitor started to work.

Board type: 19Y_34QJU11B2MQV0.0_HF

I bought one for HP E344C, but it doesn't matter. It can be for any other 34-inch curved monitor, as long as it's the same PCB (19Y_34QJU11B2MQV0.0_HF).

{{ ::lenovo_g34w-10-tcon.jpg?640 |}}

{{ ::lenovo_g34w-10-sm4191a.jpg?400 |}}
The SM4191A chip that looks like a power converter that makes about 5 different voltages for the LCD.

In the future, I may replace this chip to get another working PCB.

Looking over the internet, this PCB giving up seems to be quite common.