Hello,
I’m experiencing an issue with my PS5 (EDM-031). It only emits a beep, and no LEDs light up. Connecting via UART shows several error codes: two unknown (80896001 and 80894001) and two known (80892003 and 80891001).
When I connect the motherboard to my bench power supply, the current starts at 0.150 A and drops to 0.05 A after about 10 seconds. At 0.150 A, two components heat slightly: the SSD and the southbridge (~35–40 °C).
Regarding the DA9081, all voltages are present and there’s no short circuit. However, I found a short on a coil: in diode mode, it’s almost at ground. Comparing it to another coil with a nearly identical layout, the values are completely different (see photos).
After desoldering the coil, the short appears on the opposite side. Injecting 1 V (limited to 0.7 A) does not produce any hotspot on the thermal camera.
Do you have any idea where this line might be connected? I’m out of ideas.
I’m experiencing an issue with my PS5 (EDM-031). It only emits a beep, and no LEDs light up. Connecting via UART shows several error codes: two unknown (80896001 and 80894001) and two known (80892003 and 80891001).
When I connect the motherboard to my bench power supply, the current starts at 0.150 A and drops to 0.05 A after about 10 seconds. At 0.150 A, two components heat slightly: the SSD and the southbridge (~35–40 °C).
Regarding the DA9081, all voltages are present and there’s no short circuit. However, I found a short on a coil: in diode mode, it’s almost at ground. Comparing it to another coil with a nearly identical layout, the values are completely different (see photos).
After desoldering the coil, the short appears on the opposite side. Injecting 1 V (limited to 0.7 A) does not produce any hotspot on the thermal camera.
Do you have any idea where this line might be connected? I’m out of ideas.
