• PS3 FAT CECHC04 - COK-002 - PL/ENG - brak obrazu na HDMI i Component

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#1 PS3 FAT CECHC04 - COK-002 - PL/ENG - brak obrazu na HDMI i Component


by skazichris 25 April 2020, 23:05
Witam,

wpadła mi dziś w ręce rzadka wersja konsoli PS3 CECHC04 - to ta ze wsteczną kompatybilnością sprzętową.

Płyta główna COK-002 - opisana poniżej
Image

USTERKA:
brak obrazu ze złącza hdmi
brak obrazu ze złącza Component
tzw. GLOD (green light of death)

ZACHOWANIE:
Konsola startuje.
Włącza się, ale bez obrazu.
Można też przejść w tryb serwisowy:
konsola wyłączona
trzymam power - zielona dioda - jedno piknięcie - power off - czerwona dioda - puszczam power
trzymam power - zielona dioda - jedno piknięcie - dwa piknięcia - puszczam power
Tu powinno się pojawić menu recovery, nawet jeśli konsola wcześniej miała ustawioną dziwną rozdzielczość na hdmi..

Brak uszkodzeń mechanicznych na płycie.
Oba gniazda (hdmi/component) wizualnie OK.
Gniazdo HDMI zmierzone za pomocą wtyczki z przeciętym starym kablem hdmi.
Startu płyty nie blokuje dysk, ani bluray (sprawdzone na odłączonym).

Zasilacz sprawny, podmieniony z działającej konsoli.
Daje 5V (bo diody się świecą, a to linia zasilania 5V)
Daje 12V bo konsola startuje.

Skoro konsola wchodzi w menu serwisowe,
to znaczy że SYSCON działa, steruje zasilaniem do CPU, cewki i kondensatory (tokiny) zasilające CPU są sprawne, i sam CPU też działa - inaczej byłaby cegiełka.

Kondensatory na RSX mają niską oporność, ale to normalne w tych płytach.
Gdyby były walnięte, to byłaby usterka RLOD/YLOD (Red Light of Death/Yellow Light of Death)

Sil9231CBU (HDMI IC) narazie wykluczam, bo przecież nie działa też złącze AV (component), więc usterka raczej jest wcześniej.
Ścieżki z Sila idą do RSX oraz do GS, a GS jeszcze łączy się z MultiAV IC.

PYTANIE:
jak to dalej zdiagnozować.
Zazwyczaj pada w tych płytach bga z RSX, ale nie ma pewności że to akurat to.
Zakładam że jeśli padłby RSX, to też byłaby usterka typu (RLOD/YLOD), a tutaj konsola wstaje...
Nie chcę niepotrzebnie grzać płyty, jeśli się okaże że to nie RSX.

Czy macie jakieś pomysły z jakiej jeszcze strony można to zdiagnozować?


#--------------------------------------------------------------------------------------------------
English version below

Hello,

I just received a rare console model CECHC04 with hardware backward compatibility.
Mobo: COK-002 - described in the picture below

Image

DEFECT:
no video from HDMI
no video from Component
it is so called GLOD (green light of death)

BEHAVIOR:
Console starts up.
Turns on, but no video output.
Recovery menu can be started:
eg.

console is turned off
I hold the power button - green light - one beep - power off - red light - release the power button
I hold the power button - green light - one beep - two beeps - green light - release the power button
Normally, recovery menu should pop up on the screen, even if the console had a different resolution set before.

There is no mechanical damage on mobo.
Both HDMI and Component are visually OK.
HDMI connector was measured using an old hdmi plug with stripped cable.

HDD and BDROM are not blocking mobo startup (checked with and without).

PSU is working fine, taken from another working console.
It gives 5V (green and diodes are working, so it means 5V powerline is ok).
It gives 12v cause the console starts up and does not turn off by itself.

So... since the console boots up to the recovery menu,
it means that:
- the SYSCON is working, it enables CPU power.
- CPU Induction coils and NEC/tokin capacitors are ok,
- CPU is working as well

Otherwise, I'd have a 'hard brick'.

The tokin capacitors have low resistance, but it is normal in these mobos.
If they would be faulty, there would be RLOD/YLOD error (Red Light of Death/Yellow Light of Death)

I think it is not Sil9231CBU (HDMI IC) 'cause AV (component) isn't working as well, so the root cause is before Sil IC.
Sil is connected with RSX and GS,
and GS is also connected to MultiAV IC.


QUESTION:
how to diagnose this further?

Usually, in these mobos, the fault is caused by RSX BGA, but there is no 100% certainty.
I assume that if RSX would be bad, then I would also get RLOD/YLOD, and in this case... the console seems to start up.
I don't want to unnecesarily heat up the mobo, if it is not RSX.

Do you guys have any ideas what else I can check before I risk reflowing/reballing the RSX?

Re: PS3 FAT CECHC04 - COK-002 - PL/ENG - brak obrazu na HDMI i Component


by Google Adsense [BOT] 25 April 2020, 23:05
This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

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