• Zwarcie na kondensatorach Ps4 pro NVA001

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#1 Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 23 July 2021, 15:35
Witam trafiła do mnie konsola ps4 pro która miała spalona ścieżkę w zasilaczu udało mi się go naprawić lecz konsola nadal nie startuje tylko pika nawet dioda nie zdąży zaświecić po badaniu płyty okazało się przepalony bezpiecznik F5103 oraz zwarcie na kondensatorach porównując i inna płyta o takim samym oznaczeniu takiego zjawiska nie ma
Proszę o pomoc od czego zacząć wymieniać nie ukrywam że jestem dopiero początkujący więc proszę o wyrozumiałość
Image
badam te 3 brazowe kondensatory

Re: Zwarcie na kondensatorach Ps4 pro NVA001


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#2 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Vogelek23 23 July 2021, 16:42
Jeśli bezpiecznik F5103 ma przerwę, to należy zmierzyć rezystancje między drenem i źródłem tranzystora TPCA8064 oraz między drenem i źródłem tranzystora TPCA8057. Jeśli oba mają zwarcie - oba są do wymiany. Jeśli tylko pierwszy, to należy go wymontować i ponowić pomiar rezystancji na tych 3 brązowych kondensatorach. Jeśli zwarcie "zniknie", należy zamontować nowy TPCA8064. Jeśli zwarcie nadal będzie, to do wymiany jest jeden z tych trzech kondensatorów. Przy pomiarze drugiego tranzystora możesz uzyskać wynik np. kilka Ω, co może być poprawną wartością - zwykle wartości <0.8Ω wskazują na typowe zwarcie.

#3 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 23 July 2021, 21:27
Proszę wybaczyć błąd ale niestety byłem przekonany że to bezpiecznik po wymianę tpca8064 zwarcie znikło kondensatory prawidłowo odczytuje ale na f5103 nie ma przejścia więc raczej do wymiany. Mam jeszcze na coś zwrócić uwagę przed próbą podłączenia?

#4 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Vogelek23 24 July 2021, 18:12
Zmierz rezystancję do masy na dowolnym pinie zaznaczonej cewki.
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#5 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 25 July 2021, 11:27
Zmierzyłem wartość 11,9Ω, druga płyta ma koło 30Ω więc chyba też coś nie tak.
Image

#6 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Vogelek23 25 July 2021, 12:03
Wymień bezpiecznik F5103 na nowy i sprawdź, czy konsola się włączy - wynik 11,9Ω na tej cewce świadczy o tym, że nie ma w tej gałęzi zwarcia, więc jest spora szansa, że konsola "zmartwychwstanie" po wymianie TPCA8064 i wspomnianego bezpiecznika F5103.

#7 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 25 July 2021, 15:37
Dzięki za odświeżenie
Niestety nadal płyta martwa odpaliła sekundę wentylator się zakręcił i znów spaliło dławik oraz tpca 8064 zastanawiam się dlaczego jest taka różnica w oporności na tych cewkach
Jest możliwość uszkodzenia cewki?

#8 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by matic 31 July 2021, 11:18
First make clear that there are two things - fuse F5103 and a small coil (actually ferrite bead).
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Solderstation wrote:przepalony bezpiecznik F5103
So which component exactly do you mean by F5103? Do you mean a fuse or ferrite bead?

Measure the resistance to ground on pin 4 of both transistors - TPCA8064 and TPCA8057. Burned transistor needs to be replaced or removed from the board before measuring the resistances.

#9 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 1 August 2021, 17:10
I mean the f5103 fuse after replacing the tpca8064 and this fuse, the console does not turn on, although it is an improvement, the fan starts and after a while it burns again f5103

#10 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by matic 9 August 2021, 18:56
With what value did you replace the fuse F5103?

#11 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 10 August 2021, 22:15
I changed from the second motherboard, it's hard to say some values, but after several attempts on different fuses, the effect is the same as reading the value of this fuse? after testing with a multimeter, it shows a full 0.0 Ωtransition, I can check in the second motherboard with the same designation
do you know what this power branch is responsible for?

#12 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by matic 24 August 2021, 21:04
Measure the resistance to ground on pin 4 of both transistors (TPCA8064 and TPCA8057). The damaged transistor should be removed from the board during the measurements.

#13 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 26 August 2021, 18:31
I measured the values ​​of both in terms of mass are 0.6mΩand the second is 0.7mΩ of course the transistor is replaced
I compared with the second disc and the same

#14 Re: Zwarcie na kondensatorach Ps4 pro NVA001  [SOLVED]


by matic 26 August 2021, 19:26
Replace both transistors (TPCA8064 and TPCA8057) regardless of whether if one of them seems good.
Replace the burned fuse and remove the coil "R68X" from the board. Turn on the board with removed coil and check, if all components survive.

#15 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 31 August 2021, 20:39
Hi, I desoldered the coil, the components survived, but the console has the same beep symptoms and the fan does not spin any ideas for a moment?

#16 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by matic 31 August 2021, 21:10
Try to replace the coil "R68X" (0,68µH) and test the board. If the transistor TPCA8064 will fail again, the APU is unfortunately very likely damaged.

#17 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 31 August 2021, 22:56
so I thought that the damaged can be apu you can solder from another board of course also ps4 pro

#18 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by matic 1 September 2021, 07:28
Solderstation wrote:so I thought that the damaged can be apu you can solder from another board of course also ps4 pro
Yes, if the replacement APU chip is from the same board (NVA-001).
But note that the APU is married to a few other chips on the board - Syscon, Flash and BRD Renesas chip, so you should transplant all of this chips, otherwise the console will not work.

#19 Re: Zwarcie na kondensatorach Ps4 pro NVA001


by Solderstation 3 September 2021, 00:28
Hi, today I decided to check everything again, I replaced the transistors and the fuse again and on the other side I found a small capacitor that was damaged, the disc got up away picture
Thank you for your help

Re: Zwarcie na kondensatorach Ps4 pro NVA001


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