PS3 Fault finding YLOD with the SYSCON - First steps and Error reporting

And these are the resistance values I get on my COK-002 board. Are they OK?

IMG_20200711_124005.jpg
 
It seems fine. Are you try to fix it?

I run full services for repair electronics from my workshop when I am home with live streaming
 
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And this is the 12V --> 10V -> 12V transition I see in pin 22:

I'm sorry, I forgot to verify this transition, I hope to see it tomorrow.

According to the NCP5318FTR2G datasheet the pins 1,2,3,30,31,32 in a certain sequence form a code that indicates which voltage must be compared, the sequence is 3,2,1,32,31,30.

The result of your measure: 3→High (1), 2→Low(0), 1→High(1), 32→Low(0), 31→High(1), 30→High(1) = 101011 (1.3250v).

This sequence (101011) is different if you compare the sequence of a working PS3. In all PS3 repaired with tantalum capacitors I got the sequence 101100 (1.3125v). Do you changed Nec capacitors?
 
This sequence (101011) is different if you compare the sequence of a working PS3. In all PS3 repaired with tantalum capacitors I got the sequence 101100 (1.3125v). Do you changed Nec capacitors?

Yes, I replaced all of them, and made the wire bridges. I measured voltage on the CELL and it seems OK, but still cannot get the RSX voltage to work.
 
OK, I think I have a suspect: IC6202 (could also be IC6204, but I don't think so).

Let's start with some more IC6201 measurements:
Pin 18 (IC6203 PWM pin):
p18.png


Pin 20 (IC6202 PWM pin):
p20.png


Wait, that's suspicious. The high level is about 1.6 V. According to datasheet, minimum high level should be 2.1 V on the PWM pin, so maybe this is not enough to activate the internal mosfets:
20200712_135054.png


Now let's have a look to the ENABLE pin, shared by both IC6202 and IC6203:
enable.png


High level is about 1.35 V, and again should be more than 2.1 V. So it seems we are not enabling IC6202 and IC6203. The problem could be that IC6204 (and AND gate it seems) is broken, but I do not think so, since the PWM signal is OK on the IC6203, but seems also wrong on IC6202.

To me, it looks like IC6202 is damaged and is draining more current than it should on digital inputs, causing the voltage drop.

What do you think?
 
Wohooo!, it is still YLoDing, but it went a bit furthere:

Code:
>$ lasterrlog
[SSM] state: 0000 -> 0101
Bringup Mode #0 (0xFF)
[SSM] ssmCb_OnStartingBePowOn() called.
[SSM] First Boot.
[SSM] Bringup mode : syspm_stat=00000000/00000000
[POWSEQ] PowerSeq_Setup called.
[SSM] state: 0101 -> 0201
[POWSEQ] AV Backend Setup
[SSM] state: 0201 -> 0102
[SSM] state: 0102 -> 0202
[SSM] state: 0202 -> 0103
[SSM] state: 0103 -> 0203
[SSM] ssmCb_BeforeBeOn() called.
[SSM] state: 0203 -> 0104
Psbd_SbTransMode_Half:0x21e2
[POWERSEQ] Error : BitTraining BE:RRAC:RX2:GLOBAL1:RX_STATUS
[SSM] state: 0104 -> 0304
[SSM] ssmCb_AfterBeOn2() called.
[SSM] PowSeq Fail : Detected !
[SSM] state: 0304 -> 0700
[POWSEQ] AV Backend Letup
[SSM] Shutdown mode : syspm_stat=00000000/00000000
[ERROR]: 0xa0404421
[ERROR]: 0xa0403034
[POWSEQ] PowerSeq_Letup called.
[SSM] state: 0700 -> 0600
(PowerOff State) (Fatal)
lasterrlog
Last Error Code:0xa0403034, Time:0xffffffff

Guess what, it seems IC6202 maybe is not broken after all. C6225 was shorted (I think I hit it while removing the Tokins, I was not careful), and as a consequence also R6240 was damaged (it is 2.2 Ohm, but I read more than 1 KOhm). I replaced C6225 with an equivalent, and R6240 with a 3 Ohm one (I had no 2.2 Ohm resistors).

So, any hints about errors 0xa0404421 and 0xa0403034? They are in the "data error" category, so could it be I have to assemble the thing?

EDIT: Hum, I have not seen exactly my same error code (404421), but it seems I might need a reball... bad news.
 
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High level is about 1.35 V, and again should be more than 2.1 V. So it seems we are not enabling IC6202 and IC6203. The problem could be that IC6204 (and AND gate it seems) is broken, but I do not think so, since the PWM signal is OK on the IC6203, but seems also wrong on IC6202.

IC6204 depends of Pin 29 (ENABLE) and pin 8 (Drive ON), both IC6201's pins. If pin 29 and pin 8 are in High level the IC6204's pin 4 will enable IC6202 and IC6203.
 
So, any hints about errors 0xa0404421 and 0xa0403034
4421 is new for me.

3034 seems a BGA failure.
r5cWGsq.jpg

Two of my three PS3 with error 3034 power on if I pressure this point of motherboard.

I realized that other errors accompany error 3034, which could be a problem with BGA.
 
Those errors are in the Data error section and are usually poor BGA connection

4421 is new for me.

3034 seems a BGA failure.
Two of my three PS3 with error 3034 power on if I pressure this point of motherboard.

I realized that other errors accompany error 3034, which could be a problem with BGA.
 
Yeh have to be careful when testing with the multimeter, try to use the test points near - silver points to measure voltage readings.

Those are Data Errors so yes a reflow is required at a minimum, otherwise a reball is required.

Wohooo!, it is still YLoDing, but it went a bit furthere:

Guess what, it seems IC6202 maybe is not broken after all. C6225 was shorted (I think I hit it while removing the Tokins, I was not careful), and as a consequence also R6240 was damaged (it is 2.2 Ohm, but I read more than 1 KOhm). I replaced C6225 with an equivalent, and R6240 with a 3 Ohm one (I had no 2.2 Ohm resistors).

So, any hints about errors 0xa0404421 and 0xa0403034? They are in the "data error" category, so could it be I have to assemble the thing?

EDIT: Hum, I have not seen exactly my same error code (404421), but it seems I might need a reball... bad news.
 
Yep all help is appreciated!

Once you have connected the serial lead and can start to post your errlog messages. Use the syscon error log code pdf to determine what issues you have - it gives you an idea in the area to look at what issues have occured.

The key to finding and fixing is measuring components and expected voltage,resistance etc values - its time consuming but gives you a pin point of whats causing the fault.

If you dont know how a component works, google it or ask here, electronics is not that hard but you need to put the time and effort to understand. Experience will come naturally and fault finding gets easier.

Ideally we need error messages and resolved methology so we can document for future preserve of these machines.

I've been reading this thread & the Tutorial - NEC/TOKIN Capacitors Replacement - YLOD FIX and hope to be able to contribute in the next few weeks when I get a used oscilloscope.

Here's a link to a cheap ($3.30) USB to TTL v3.3 Serial Converter Cable.
 
A0213013, A0213010... any clue? I know those are BE error but what i have to do?
3013 is not actually in the errors list, are you sure you have that number right?

3010 is BE ERROR (IC1001). Based on the information so far (all documented in the first post in the thread), this is going to be one of the following errors: BE_INIT OR BE_POWGOOD OR CLOCK ERRORS. If you have access to an oscilloscope, I'd recommend verifying the test points as documented here (https://www.psx-place.com/threads/f...-and-error-reporting.30100/page-6#post-249820) and here (https://www.psx-place.com/threads/f...-and-error-reporting.30100/page-6#post-249841).
 
3013 is not actually in the errors list, are you sure you have that number right?

3010 is BE ERROR (IC1001). Based on the information so far (all documented in the first post in the thread), this is going to be one of the following errors: BE_INIT OR BE_POWGOOD OR CLOCK ERRORS.
Yes i'm sure thats the correct error, i don't have an oscilloscope but with the temperature command i can't get the cell temperature but the rsx one yes i think my cell is dead
 
So look around the CELL power area - analyse the schematics for this board, and start voltage measuring.
As marciolsf said, look at the test points i've provided.

Yes i'm sure thats the correct error, i don't have an oscilloscope but with the temperature command i can't get the cell temperature but the rsx one yes i think my cell is dead
 
I am in the process of doing this but which usb ttl dongle can i use
Can you help pls

I have one like this 1.43$ free shipping (and i remember to see it in aliexpress even cheaper)
https://www.ebay.com/itm/CP2102-USB...228394?hash=item59183530aa:g:AzIAAOSwgGZcB3PW

The CP2102 chip is a modern "low cost" replacement of the classic FT/RS232 chips. But it works in the same way. The most important safety feature of this adapters is they needs to work at 3.3v levels (this is considered TTL low voltage)
There are others that works at 5v, but you should not use them
 
Any ttl lead with this chipset - http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=8&pcid=41
Works well for me and steps down from 5v to 3.3v
I've bought from https://www.aliexpress.com/item/1981712661.html?spm=a2g0s.9042311.0.0.27424c4dFtEor5
Cheap as chips!

I have one like this 1.43$ free shipping (and i remember to see it in aliexpress even cheaper)
https://www.ebay.com/itm/CP2102-USB...228394?hash=item59183530aa:g:AzIAAOSwgGZcB3PW

The CP2102 chip is a modern "low cost" replacement of the classic FT/RS232 chips. But it works in the same way. The most important safety feature of this adapters is they needs to work at 3.3v levels (this is considered TTL low voltage)
There are others that works at 5v, but you should not use them
 
I have one like this 1.43$ free shipping (and i remember to see it in aliexpress even cheaper)
https://www.ebay.com/itm/CP2102-USB...228394?hash=item59183530aa:g:AzIAAOSwgGZcB3PW

The CP2102 chip is a modern "low cost" replacement of the classic FT/RS232 chips. But it works in the same way. The most important safety feature of this adapters is they needs to work at 3.3v levels (this is considered TTL low voltage)
There are others that works at 5v, but you should not use them
Thanks mate
 

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