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[HLD-X9] Power issue
https://forum.lddb.com/viewtopic.php?f=54&t=7690
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Author:  nekonoko [ 08 Mar 2018, 02:04 ]
Post subject:  [HLD-X9] Power issue

I recently picked up an HLD-X9 that potentially has some sort of power issue. After plugging it in to a 100v step down transformer and pressing the soft power, the display will light up, flash a few times and then go out. None of the internal motors move (loading motor or laser transport), the unit is completely silent.

My admittedly untrained eye can't find anything obviously wrong internally. The tray was salvaged from a D503 with the 3" disc surface removed, so that's fully intact. All the fuses pass continuity, plus no obviously bulging/leaking capacitors or unplugged cables that I can find. The loading belt is brand new (but the motor isn't moving anyway).

Was wondering if this sounds like a familiar or common fault to anyone? Thanks in advance!

Author:  signofzeta [ 08 Mar 2018, 03:55 ]
Post subject:  Re: [HLD-X9] Power issue

I’d suspect the step down. Is it legit or some airport POS? (Ie: does it have a metal chassis?) Until you can fully load test your mains you’re just guessing. Plug a blender into it or something.

Author:  nekonoko [ 08 Mar 2018, 04:29 ]
Post subject:  Re: [HLD-X9] Power issue

Unfortunately it's been tried on more than one step down, high quality beefy metal ones from Japan. I wish it was that simple. :)

Author:  signofzeta [ 08 Mar 2018, 04:44 ]
Post subject:  Re: [HLD-X9] Power issue

Oh well, that’s the extent of my knowledge on this issue! :)

Author:  nekonoko [ 08 Mar 2018, 05:00 ]
Post subject:  Re: [HLD-X9] Power issue

Hey, no worries- checking your power input in definitely good advice. This weekend I'll see if I can measure some voltages around the chassis and see if anything seems off there. There are a couple of extremely scary capacitors on the right hand side of the unit that hold a massive charge even after the unit's been unplugged so I'm a little nervous about brushing against those accidentally. They have "discharge" points on the backside of the board, and boy do they ever discharge.

Author:  rein-o [ 08 Mar 2018, 05:14 ]
Post subject:  Re: [HLD-X9] Power issue

Yeah, your best bet is to try your hand at using a multi meter and make sure you are getting the correct voltage, I would even check to make sure the
fuses are correct.
But that's even the extent of my knowledge, and you are doing whatever at your own risk.

You didn't get the one on ebay that was listed as a project did you???

Author:  nekonoko [ 08 Mar 2018, 05:20 ]
Post subject:  Re: [HLD-X9] Power issue

This one's from Yahoo auctions via Jauce (first time using them), but it wasn't listed as tested/working either. Definitely a gamble.

Author:  nekonoko [ 26 Mar 2018, 22:43 ]
Post subject:  Re: [HLD-X9] Power issue  Topic is solved

Picked up another HLD-X9 "junk" item from Yahoo; this one was easy to get going. New loading belt & clamp slip ring and it was good to go. I'll keep the other X9 for parts just in case.

Author:  signofzeta [ 27 Mar 2018, 01:02 ]
Post subject:  Re: [HLD-X9] Power issue

I’d keep the old one around for sure. Power issues are, relatively speaking, easy fixes. Even if you have to build a new power supply for it...hey, it’s easier than building a laser or a spindle motor.

Author:  drecksoft [ 18 Nov 2023, 14:15 ]
Post subject:  Re: [HLD-X9] Power issue

Any new information on that? I have one with a similar issue. It powers on but the display does not flash but stays on. After a few seconds the player shuts down. The laser is moving during that time till it hits the limit switch (if I move it out of that position before powering on) and it tries to close the tray (and does that if I insert it). It also smells burned after a few tries somewhere in the front-right but I couldn't see anything.

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