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Spot the deliberate mistake

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simonp1100 View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote simonp1100 Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 9:36am
Could it be that the customer is using long fixing screws to attached the power supply to a base and the screws are hitting the PCB board inside ?.LOL
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kedwardsleisure View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 9:43am
not exactly.
Kevin

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MattStolton View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MattStolton Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 9:53am
Under the screw terminals looks to be a 110/230V slider switch? Something in red?
Matt Stolton - Technical Director (!!!) - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains"
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APW View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 10:03am
Looks like they have drilled the case and used pop-rivets, and not the M3/M4 fixing locations provided by Meanwell
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kedwardsleisure View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 10:39am
Yes you have it but you'll have to wait til lunchtime for the overhead view of my lunch.

Each psu had 2 6mm holes and pop rivets. The rivets went stright through the board in both places, one through the neutral mains track and the other through the IGBT feed to the switching transformer.

Circuit totally obliterated.

Amused they did it twice, an easy way to waste £400






Kevin

North Staffordshire

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APW View Drop Down
Young Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 10:42am
Can’t wait… love a pot-noodle pic!!
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kedwardsleisure View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 13 October 2023 at 12:25pm
Kevin

North Staffordshire

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