Paul Daniels
Super Moderator
Prior repair. Liquid damage. Arrived with no fan spin. Repairs to corrosion on U7600, replacing R7981, reconnecting trace between U7600 and C7981 (CPUVCCIOS0_EN) restored fan spin.
No chime.
No LCD_EN.
I now have no PPVCORE_S0_CPU_REG or _AXG_REG out of U7400.
U7400:1 EN (CPUIMVP_VR_ON) is present.
U7400:2 TON is ~0.1V and PPVIN_S0_CPU (~8.5V) is present on the other side of R7402 but would appear to be pulled low by TON (checked and replaced R7402, there is continuity to U7400:2
No chime.
No LCD_EN.
I now have no PPVCORE_S0_CPU_REG or _AXG_REG out of U7400.
U7400:1 EN (CPUIMVP_VR_ON) is present.
U7400:2 TON is ~0.1V and PPVIN_S0_CPU (~8.5V) is present on the other side of R7402 but would appear to be pulled low by TON (checked and replaced R7402, there is continuity to U7400:2