PS3 (Fixed) CECHB01 - Black screen when booting PS2 games.

[LSL]

This PS3 boots PS1 and PS3 games, but when it identifies a PS2 game it goes to a black screen. I can synchronize the SixAxis in PS2 mode and I can access the submenu (image). Sometimes the screen flashes as if the PS2 logo is going to appear, but nothing happens. It doesn't matter if it's a PS2 game on CD or DVD.

The BD driver normally reads CD, DVD and BR.

This PS3 was booting PS2 games normally, but I had to do preventive maintenance by replacing some resistors and the Q4015 which were damaged by oxidation, near to Syscon.

Evilnat 9.42 is installed and I have already reinstalled it to clear up the doubt.

I would appreciate if anyone has any tips on where to check.

 

[RIP-Felix]

Looks like NoPS2_Menu, the most common category of no PS2 that has no single cause discoverd yet. People have fixed it by reballing or replacing the EEGS, RSX, various SMDs in and around the PS2 circuit. Other have tried the same fix and it didnt work for them. In other words it can be many things and it's not always the same thing each time.

Unfortunately. That it happened after you did some rework to the board could mean thermal stress caused warping that may have caused a BGA defect The 2 most likly places would be the EEGS or RSX. Pptentially syscon and Southbridge, but to a much lesser extent. RDRAM could cause issues too, but IIRC EEGS UART can help diagnose ram issues? Not sure. We didnt learn much from messing with it, but also didnt spend alot of time sabotauhing the PS2 circuit looking for differences.

 

[LSL]

the rework was on the resistors and pads between the Syscon and the +1.7V_MISC circuit. The heat was not directed to the EEGS, but the region became heated.

I will try to assemble the PS3 but with side A of the board exposed to be able to apply pressure or heat to the EEGS and Syscon.

Problem solved, C6611 and C7002 shorted, leaving the +1.8V_EEGS_VDDIO line with a voltage below normal (this did not trigger the SYScon log).

However, before replacing the mentioned capacitors, I checked all the resistors and the resistor bank that are close to the Syscon and EEGS, I renewed the solder of all of them, as some were showing oxidation and I preventively replaced a resistor bank.

As mentioned above, the reason for the problem was the 2 capacitors, and hours before replacing them, I used the thermal camera and it had already shown that C7002 was abnormal, as it was at 72.3°C, but I had planned to check the components first.

This CECB01 had several 10uf x 6.3v capacitors shorted, it should be the 6th one to be replaced, my stock is running out!



A thermal image of the B-side of the COK-001 in operation: