No power at all

Disconnect the power from the projector and then open it up and use a DMM's (digital multimeter) Ohmmeter function to check if the T5A/250V fuse on the power board is OK or not.

Here's an image to show where it is located and what it looks like.

If the fuse is blown then you can try replacing it and check if it holds and if the projector turns on, but more likely it will blow again as normally fuses don't fail for no reason.

When searching for a replacement ensure that it is a T5.0 Amp / 240V fuse and not an ordinary 5.0 Amp / 240V fuse. The T in the fuse rating is important as it denotes that the fuse is a timed (aka slow blow) fuse.

When the power is first applied to the device there are high inrush currents flowing. These currents can be several times the rating of the fuse but a slow fuse fuse is designed to hold for the ~8mS that these currents last before they subside, whereas a standard fast acting fuse having the same current rating would blow immediately.

(click on image)

这个答案有帮助吗？

是否

得分 2

2条评论:

Hello, thank you for the information. Found out the mother board is faulty. Any descriptions on what mother board to purchase and how to repair. Thanks you again!

由 Pdjray 完成的 2025年2月10日

@pdjray

Look for a part or model number on the mainboard and search online for the number.

Also visually check the original mainboard and look for any burnt, cracked or heat stressed components.

If you find any then hopefully they can still be identified as to what type of component they are and their value or model number (if an IC).

Even if you do find one (or more) this doesn't mean that replacing it will fix the problem as they may not have failed of their own accord but some other problem may have caused them to fail.

Also Epson doesn't release service manuals or schematics (none that I could find anyway) so even if you do find a faulty component and replace it and it fails again, it will be difficult to find out the cause.

Not trying to put you off trying, just making you aware of what may be involved.

由 jayeff 完成的 2025年2月11日

添加一条评论

Hello, thank you for the information. Found out the mother board is faulty. Any descriptions on what mother board to purchase and how to repair. Thanks you again! — Pdjray
@pdjray

Look for a part or model number on the mainboard and search online for the number.

Also visually check the original mainboard and look for any burnt, cracked or heat stressed components.

If you find any then hopefully they can still be identified as to what type of component they are and their value or model number (if an IC).

Even if you do find one (or more) this doesn't mean that replacing it will fix the problem as they may not have failed of their own accord but some other problem may have caused them to fail.

Also Epson doesn't release service manuals or schematics (none that I could find anyway) so even if you do find a faulty component and replace it and it fails again, it will be difficult to find out the cause.

Not trying to put you off trying, just making you aware of what may be involved. — jayeff

Epson PowerLite 2250U

No power at all

1个答案

添加你的答案