final test - Page 004

Wach this : https://youtu.be/8JbOUZQBkRU

Hi, one of my ldo is at 1.2v even if i directly inject 2.3v

Hello has anyone repaired a c16 pro from koi miner before ? I got a machine that says ACK fail across all 3 boards, any thoughts ?? Thanks !!

What Board do you repair ?

Yes and all other ldo was good

Impedance od output is?

I will check it tomorrow

S17 ? Not S17+?

No sorry because i work with both of them

Easy, click stop button on the web

If S17, check Thermal Sensors Also becase 1v8 IS Power supply for Sensors, maybe one of them Has big power comsuption "short"

Okok thanks i will check it

0,8V output is ok?

Yes

Ok

Thx i will tell you if its work

Ok, thank you 🙂

What does it mean?

One chip it’s not good

Hi, it means that the board temp has a big difference compared to a chip temp, it’s not really an error, just check the temps

Ok. Thx

No

No, it is not, flashing just indicates big temp difference

No my friend

Yes, it’s just like that
And no, it’s not necessarily a chip problem
I guess we know our product slightly better than you do😁

No non my friend

Hi there

Is anyone getting errors when trying to connect to an s19jpro?

Yes

I get it on a working s19jpro also

Can you send me the photo

Don’t touch the board

Clean your history google

I'm not sure what you mean

Clean your history tester

How do I do that?

Ok

Can you type all the steps I'm not at the facility right now and I will try it when I go back.

Ok will do. Probably won't be till monday thank you very much

Ok no problem

Any question tell me

what happened

You have Jim line

Hello, Has someone experiences with Avalon psu ?

For what

How you do that ?

hello good morning I just made the EEPROM Error and it diagnoses me less than 3 Vlt

Take out your board

hi! how many volts exactly?

In fact, when I don't connect the hash, I get the error.

and now before it told me control board connected oh disconnected and now pure error

how many ohms?

in this place?

Yes

What is serial number of your ARC?

N10000728

This means that there is a short circuit along the 3 volt line, it must first be eliminated. Apply 3 volts and 0.5 amperes to these points and look for what is heating up.

Same results after clearing history

How many boards you have connected? What are models of this boards?

I tried without the sensor, the ldo is at 2.3v… its better :)

Hello! What is your serial number?

1000865 ver3 1.341

Nice, check Feedback of 1v8 LDO

To the arc tool? 1 it is a s19jpro board

Now when i put a chip at the top of the right domain (36) the 1.8 turn to 2.5

change the chip

I tried, i will change again next time

The ldo is good

I think yes

Which board your working

S17

Check the bi

Hi,
Did someone found an answer?

What is the problem

On the picture:
Temps sensors are working, but one of them is flashing red

It shows -64°c

Hi! We need a dump like last time. The last dump is in progress, we haven't forgotten about you!

Thank you ! Will try to upload the dump file tomorrow !

Thank you, we are waiting!

Do you know what the problem is with this? I've cleared the history and everything. It's on a s19jpro

Cómo podría encontrar el chip dañado en éste caso ? Es un T17

Hi,
In that case only once is flashing and showing -64°c

Why does the tester stop providing power to the board after 20-30 seconds? Today I have tried testing 4 boards and same issue. I start testing voltage on board and after about 30s everything drops to almost nothing. Have not had this issue in the past

What boards and how many chips were found during the test?

S19 3 boards found 0 and 1 board found 75

The tester does not exactly remove the power, the PIC controller can do this if it has not received a heartbeat or something with the PIC firmware.

I flashed the pic on 2 of them and still had the same issue

We haven't encountered this, so I can't know what the problem is. Is everything okay with the other boards?

Let me pull a couple good boards and test

thank you, we are waiting!

Anyone know what this issue is here? Or whom I should contact?

No one missing:(

Also is it normal for the boards become hot to the touch while testing voltage

How many amps Power supply do you have ?

15

do you have an oscilloscope? I think it is necessary to see what is happening on the Ro bus.

Not sure why? Just started today with every board I tested. Never had an issue before.

In the video, I see that the power supply turns on and then turns off, do I understand correctly?

Power supply does not turn off. The amps drops on the power supply and the voltage drops from the board

multimeter measures voltage and it disappears?

Yes I am measuring voltage and then it drops below 1V but not to 0 - then if I turn the tester off and wait about 15 seconds and start the test again I can measure for another 30 seconds

judging by this, we have come to the conclusion that your power supply is out of order and has been working under load for 30 seconds, as you wrote

Ok I didn't notice that. I'll try the other connection in the back side. Just odd that it's been working in the past

apparently heated, melted and now proved itself, good luck to you!

is everything working for you?

Question

After upgrading my ASIC Repair Centre to the latest software version (1.341), I can no longer find or select the S17pro from the hashing board test list. When connected, the tester states unknown EEPROM and asks to flash for the S17 model.

hi! s17 and s17pro are the same thing

OK .. so why are the voltage levels different on the S17pro and the S17 versions?

I don't understand you, where are the differences?

On the boards themselves. If you connect S17pro boards, voltages showing on connection are generally 17v - 18v. When connecting S17 boards, you get 14v - 15v

these voltages are stored in the EEPROM, the firmware in any case takes this as a recommendation.

OK, understood.

The higher the voltage, the greater the current and the faster the board heats up. You need to find a voltage sufficient for the test, start with 14 volts