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gameboybin
 Post subject: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 22:04 
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Joined: April 17th, 2022, 22:39
Posts: 203
Location: Vietnam
I have this SSD with Phison PS3117-S17 Controller that tested on PC3000 gives all lights like a crhistmas tree. Which I believe the SSD is shorted. However i cannot seem to find where the short is.
Can you guys help me out! Many thanks!

SSD
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Attachment:
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Attachment:
z7307178271863_0f80b17acb68cfd85a005ce40f90c0bc.jpg
z7307178271863_0f80b17acb68cfd85a005ce40f90c0bc.jpg [ 679.69 KiB | Viewed 407 times ]


Voltages
Attachment:
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z7307168369897_f700c218903f601cbdaa228d8db929b0.jpg [ 568.58 KiB | Viewed 407 times ]


Many thanks!
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fzabkar
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 22:17 
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5V is present at the input, and 3.3V and 1.8V are present at the outputs. Where is the Vcore supply for the controller? That should be around 1V. Could that be the 0.9V I can see at the PS6117-40 PMIC?

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Last edited by fzabkar on December 8th, 2025, 22:25, edited 1 time in total.

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gameboybin
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 22:22 
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Joined: April 17th, 2022, 22:39
Posts: 203
Location: Vietnam
fzabkar wrote:
5V is present at the input, and 3.3V and 1.8V are present at the outputs. Where is the Vcore supply for the controller? That should be around 1V.


Can you point out where can i measure Vcore??
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fzabkar
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 22:26 
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Location: Australia
gameboybin wrote:
fzabkar wrote:
5V is present at the input, and 3.3V and 1.8V are present at the outputs. Where is the Vcore supply for the controller? That should be around 1V.


Can you point out where can i measure Vcore??

Sorry, your reply crossed with my edit. The PS6117-40 PMIC has 1x buck converter and 1x LDO regulator. Perhaps 0.9V is the LDO output for the Vcore supply, in which case there do not appear to be any shorted supplies.

Is there anything on the other side of the PCB? I can't believe that Vcore can be supplied by a puny LDO.

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gameboybin
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 22:36 
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Joined: April 17th, 2022, 22:39
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Location: Vietnam
fzabkar wrote:
gameboybin wrote:
fzabkar wrote:
5V is present at the input, and 3.3V and 1.8V are present at the outputs. Where is the Vcore supply for the controller? That should be around 1V.


Can you point out where can i measure Vcore??

Sorry, your reply crossed with my edit. The PS6117-40 PMIC has 1x buck converter and 1x LDO regulator. Perhaps 0.9V is the LDO output for the Vcore supply, in which case there do not appear to be any shorted supplies.

Is there anything on the other side of the PCB? I can't believe that Vcore can be supplied by a puny LDO.


There is nothing on the other side

Attachment:
z7307374386064_ed56e8cd330d4980802cb5ee5a056e19.jpg
z7307374386064_ed56e8cd330d4980802cb5ee5a056e19.jpg [ 163.7 KiB | Viewed 402 times ]


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fzabkar
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 22:44 
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Measure the voltages on the tiny bypass capacitors around the controller. You should find Vcore and Vio.

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gameboybin
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 23:32 
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Location: Vietnam
fzabkar wrote:
Measure the voltages on the tiny bypass capacitors around the controller. You should find Vcore and Vio.


Here are the voltages around the controller
Attachment:
z7307600832287_737539726f07aa4a085270549adcd705.jpg
z7307600832287_737539726f07aa4a085270549adcd705.jpg [ 474.88 KiB | Viewed 392 times ]


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fzabkar
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 8th, 2025, 23:41 
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All looks good to me. It looks like this is the cheapest possible configuration.

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gameboybin
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 9th, 2025, 3:36 
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Welp. still have no idea what is wrong with it :"(
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fzabkar
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 9th, 2025, 3:41 
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Have you tried Safe/ROM mode?

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gameboybin
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 9th, 2025, 3:43 
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Joined: April 17th, 2022, 22:39
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Location: Vietnam
fzabkar wrote:
Have you tried Safe/ROM mode?


Yeah safe ROM mode works on normal PC, and on PC3000 Express
but not in PC3000 Portable. So i'm questioning my device now :(
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Lardman
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 9th, 2025, 7:14 
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All the SATA registers on in PC3K in itself doesn't indicate a short - you can get the same if you just power a drive with no SATA data connected. If you suspect something like that check the power profile rather than the lights. No idea why you're getting differing results in express / portable though.

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bobarod
 Post subject: Re: PS3117-S17 help me find the shorted component
PostPosted: December 9th, 2025, 8:58 
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Joined: December 4th, 2025, 7:23
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gameboybin wrote:
Yeah safe ROM mode works on normal PC, and on PC3000 Express
but not in PC3000 Portable. So i'm questioning my device now :(

Try to check/replace Portable Sata/Power cable.
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