XB271HU monitor is broken? Where can I find the circuit diagram for the power section of the monitor

Matti_52_Koskinen
Matti_52_Koskinen Member Posts: 2 New User
edited February 21 in Monitors

Where can I find the circuit diagram for the power section of the monitor XB271HU...a thunderstorm voltage spike in the power grid broke my two monitors and I would like to fix them. XB270HU found thre….https://www.schematic-expert.com/acer/acer-monitor/…...but it is different as XB271HU

BR

Matti

[Edited the topic title to include the topic issue.]

Answers

  • Jack22
    Jack22 ACE Posts: 4,292 Pathfinder

    @Matti_52_Koskinen

    Is the below diagram useful

    Click on 'Yes' if the comment answers your question!
  • Matti_52_Koskinen
    Matti_52_Koskinen Member Posts: 2 New User

    Thans a lot this but I should need real circuit diagram from power supply board. Transistor D703 (K946 C200) was broken and diode, 1N4148, near MP3338A control IC (componen number unknown).

    I would be happy with the circuit diagram of AC side and around this MP3338A IC. I have circuit diaram of XB270 monitor but it is little bitt differet as this…ex. control IC is different. In the photo under board is marked control IC largest red circle….transistor Q703 midle size red circle…diode smallest red circle. On board marked transistor what was broken, I hing the IC is broken also but littlle difficult to look withour circuit diagram. I don't think the voltage is generated in the right place on the control IC pin... The connection of the MP3338A circuit can be found online...what is that big IC circuit?

    BR

    Matti