Kayvon Posted March 23, 2023 Share Posted March 23, 2023 (edited) My KS-S18 fell over on its side onto a rock, which chipped the top shell. When I righted the EUC, I couldn't turn it on. Even after removing the top shell, holding down the power button does absolutely nothing. No lights, no sound, no LEDs on the control board. Dead as a door nail. I don't see anything physically damaged in the electronics. The charger turns red (charging) when I plug it in, but nothing else happens. I desperate for advice on how to fix this. Any advice? Edited March 23, 2023 by Kayvon Quote Link to comment Share on other sites More sharing options...
Popular Post Kayvon Posted March 23, 2023 Author Popular Post Share Posted March 23, 2023 I figured it out! You're not going to believe this... It's a single component on the control board marked Q27. That's a small NPN transistor with a G1 marking. When it was assembled in the factory, the piece wasn't soldered onto its matching pads correctly; it was askew. When the EUC had the impact from falling over, that was enough to jostle the lead off of the package. Shorting the broken lead to the PCB pad causes everything to start working again. Amazing... I'm so relieved. Fortunately, this part should be easily replaceable. I'm sure it's parts of the power-on system to allow the unit to detect and maintain a low-voltage power on indicator. Hopefully this is useful to someone else in some way. 5 Quote Link to comment Share on other sites More sharing options...
Robse Posted March 23, 2023 Share Posted March 23, 2023 6 hours ago, Kayvon said: I figured it out! You're not going to believe this... It's a single component on the control board marked Q27. That's a small NPN transistor with a G1 marking. Hopefully this is useful to someone else in some way. a picture would be nice too Quote Link to comment Share on other sites More sharing options...
Kayvon Posted March 23, 2023 Author Share Posted March 23, 2023 The board is already labeled, so I'm not sure how helpful that will be, but here's a picture of what it should (but doesn't) look like. Again, Q27 is the transistor in question. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.