Need high res pic of Asus Xonar Essence STX PCB

amit_talkin · Oct 11, 2020

I recently got my Asus Xonar Essence STX short circuited and one of the ICs got melted on board. Now as IC is melted, it cant be seen what exactly the part number of the IC is. Can anyone share high res pic of the PCB so that I can see what exactly the part is which needs to be replaced?

INSTG8R · Oct 11, 2020

I haven’t looked but perhaps it may have been reviewed here at TPU.Reviews always have high res GPU a pics so may get lucky.

amit_talkin · Oct 11, 2020

INSTG8R said:
I haven’t looked but perhaps it may have been reviewed here at TPU.Reviews always have high res GPU a pics so may get lucky.

I checked several familiar websites for such images, but couldnt find one.

agent_x007 · Oct 11, 2020

https://i.redd.it/fo1xxjz6cng11.jpg

Check if you can see what you need on one of those :

The Xonar Essence STX Q/A, tweaking, impressions thread - Thread Gallery

www.head-fi.org

amit_talkin · Oct 11, 2020

agent_x007 said:
https://i.redd.it/fo1xxjz6cng11.jpg

Check if you can see what you need on one of those :

The Xonar Essence STX Q/A, tweaking, impressions thread - Thread Gallery

www.head-fi.org

Thank You. That really helped.
As I can read, is it written EZ-EQ ABC on it? I have marked dead IC in pics below.
My PCB

Reference PCB

Cant find any part online for "EZ-EQ". Anyone knows what exactly that IC is?

Still need help with this. Anyone knows what exactly that chip is for?

cirthix · Feb 12, 2021

I've got a xonar essence STX with the same chip fried, was damaged by a backwards molex connector.

This chip is a Texas Instruments TPS63700. If you can't solder the QFN, contact me.

amit_talkin · Feb 13, 2021

cirthix said:
I've got a xonar essence STX with the same chip fried, was damaged by a backwards molex connector.

This chip is a Texas Instruments TPS63700. If you can't solder the QFN, contact me.

Thanks for the update. Now the real problem is that I can't find this chip in retail market anywhere :/

Night · Feb 13, 2021

amit_talkin said:
Thanks for the update. Now the real problem is that I can't find this chip in retail market anywhere :/

https://eu.mouser.com/Texas-Instruments/Switching-Voltage-Regulators/TPS63700-Series/_/N-1z0zls6Z668jtZ1yyuyl4

khanhamza · Feb 13, 2021

I checked several familiar websites for such images, but couldn't find one. :confused:

amit_talkin · Feb 14, 2021

Night said:
https://eu.mouser.com/Texas-Instruments/Switching-Voltage-Regulators/TPS63700-Series/_/N-1z0zls6Z668jtZ1yyuyl4

Thanks, do I need a specific one from the list or any of those 4 would work fine?

Night · Feb 14, 2021

amit_talkin said:
Thanks, do I need a specific one from the list or any of those 4 would work fine?

2 of those with 'G4' in the part number are RoHS compliant versions, as stated. I can't see any difference between TPS63700DRCT and TPS63700DRCR, other than 'RCT' being in stock.

They have the exact same specifications when compared, there shouldn't be a problem, I'd order the one in stock.

amit_talkin · Jul 14, 2022

Night said:
2 of those with 'G4' in the part number are RoHS compliant versions, as stated. I can't see any difference between TPS63700DRCT and TPS63700DRCR, other than 'RCT' being in stock.
They have the exact same specifications when compared, there shouldn't be a problem, I'd order the one in stock.

Sorry for waking up this thread.
Its time that now I want to revive my dead ASUS Xonar card as mentioned in OP. However this specific part number is out of stock on most of the website. Is there any alternative to this part from other manufacturers?

amit_talkin · Jul 20, 2022

nobody?

AsRock · Jul 20, 2022

amit_talkin said:
Thank You. That really helped.
As I can read, is it written EZ-EQ ABC on it? I have marked dead IC in pics below.
My PCB

Reference PCB

Cant find any part online for "EZ-EQ". Anyone knows what exactly that IC is?

Still need help with this. Anyone knows what exactly that chip is for?

umm? more like Ez ED A2C ?

amit_talkin · Jul 20, 2022

Thanks for clarifying it. Now question is , where to get that IC from?

AsRock · Jul 20, 2022

amit_talkin said:
Thanks for clarifying it. Now question is , where to get that IC from?

Well if it's the TPS63700 as said above then

https://www.mouser.com/c/semiconductors/power-management-ics/voltage-regulators-voltage-controllers/switching-voltage-regulators/?m=Texas%20Instruments&series=TPS63700

As said above, but they seem to be in stock to me.

amit_talkin · Jul 20, 2022

They say "on order" and earliest batch will be next month I think.

erocker · Jul 21, 2022

amit_talkin said:
They say "on order" and earliest batch will be next month I think.

Another chip shortage issue. Your best bet is to place an order and wait. Or, there's knock-off versions available on ebay if you want to try that.

amit_talkin · Sep 14, 2023

Reviving this old thread as I yet haven't found the needed TE TPS63700DRCR IC at "reasonable price". Is there any alternative to this which can be easily available? I ordered TE chip twice from ebay but both of the times package got lost mid way due to its small size. Any alternative IC which can be bought easily in local market?

DudeBeFishing · Oct 13, 2023

The TPS63700DRCT looks like it's the same part. The last two letters are for how the chip is packaged when bought in bulk.

https://www.digikey.com/en/products/detail/texas-instruments/TPS63700DRCT/863499

amit_talkin · Oct 27, 2023

Update :

Finally got my hands on a chip. Got it soldered at local mobile repair shop. At first, card didn't show up in device manager so I cleaned dirty PCB with cleaner and it worked!
Now the only issue I am facing is that SPDIF port is not working anymore. that RED light on SPDIF port is not glowing. I am suspicious about an OPAMP which might have died. But I am not sure whether a dead OPAMP can cause SPDIF port to get stopped working. Can someone shine some light on this?

agent_x007 · Oct 27, 2023

SPDiF is 100% digital (since it's optical port), so check traces, OS settings or IC pins that connect to it.

amit_talkin · Oct 27, 2023

agent_x007 said:
SPDiF is 100% digital (since it's optical port), so check traces, OS settings or IC pins that connect to it.

Yes I checked it, no burnt pins or capacitors whatsoever. Tried all possible OS settings and tried different OS combinations. But since that RED glow light is not working, I assume it is a dead port.
Just wondering if any of the 3 op-amp can cause this?

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Need high res pic of Asus Xonar Essence STX PCB

amit_talkin

INSTG8R

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The Xonar Essence STX Q/A, tweaking, impressions thread - Thread Gallery

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The Xonar Essence STX Q/A, tweaking, impressions thread - Thread Gallery

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