PS3 PS3 CECH-2001B (DYN-001) – PS0 NG, PowSeq A102, ERRLOG A0093003 / A0092113

[Elementallion]

Hi,
Working on a PS3 Slim CECH-2001B (DYN-001) with the following issue:

• Powers on for ~1–3 seconds
• Then shuts down with blinking red LED
• Fan barely spins

What has been checked

• No obvious shorts on main rails
• CELL / RSX resistance appears normal (no hard short)
• Basic power rails present and stable
• Capacitor-related issues (TOKIN) ruled out with testing
• VRM section starts and produces Vcore briefly before shutdown

Syscon logs

bringup:

>$ bringup


00000000


# [SSM] Bringup Start.


# [PowSeq] Error:A102


# [SSM] PS0 ng.


# [SSM] Cond/Fatal received, msg=24D0.


# [SSM] Fataldown Start.

ERRLOG:

>$ ERRLOG


00000000


# CODE CLOCK


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0093003 FFFFFFFF


# A0092113 FFFFFFFF


# A0092113 FFFFFFFF


# A0092113 FFFFFFFF


# A0092113 FFFFFFFF


# A0092113 FFFFFFFF


# A0092113 FFFFFFFF


# A0092113 FFFFFFFF

Questions

1. On DYN-001 boards, does PS0 NG + A102 typically indicate a CPU (CELL) issue, or can it still be caused by VRM/control logic?
2. Are A0093003 / A0092113 considered strong indicators of CELL failure, or have you seen them caused by VRM controller / feedback issues?
3. In cases where Vcore briefly comes up and then shuts down cleanly, would you prioritize:
   • CPU
   • VRM controller (ISL6320)
   • or power sequencing logic?
4. Any recommended quick checks to confidently distinguish between CELL vs VRM/control issue on this board?

Thanks in advance for any input