Hello friends, so I have got a "water damaged" (or cola/beer/coffe .. something dark and sticky) G513I system - which has the board and schematics from this thread. After cleaning up all the visible sticky residue with water and detergent (thankfully mostly on the top/keyboard side), I have a partial success. IPA was of no use for cleaning this.
Using a bench power supply on the DCIN jack (as it seems that the PSU keying pin is not wired at all - series resistor R6003 is not populated), and using a shoring wire for the power button (either pin 5 on CN251 keyboard, or one end of its R301 pullup), I can initiate the startup sequence. The Power LED lights up white, and the sytem draw jumps from 1W (off) to 8W (attempt to start state).
It follows the power sequencing diagram on page 4, down to the EC_PWRSW# signal, which is a short negative pulse generated by the EC, and after translation to the CPU side (SB_PWRBTN#) where I still observe the pulse, nothing happens. The expected action would be, that the Ryzen SOC would raise the SLP_S5# and SLP_S3# (both are pain to probe, but i uncovered two vias next to the EC) - yet these signals stay constant low, and do not react to the SB_PWRBTN# feed to the SoC. The signals have no pullups, so they are likely push-pull on the FP6 cpu package.
The voltages (P3V3A, P1V8A, P0V75A) are up, VSUS_PWRGD power good also indicated ok), and RSMRST# did change as shown in the diagram.
Any idea what could be wrong, or is there any prerequisite on the SoC to get out of off state?
I do not have any FP6 platform docs, which would be helpful to understand the power FSM in the SoC.
Meanwhile I also charged the battery in this body - it started taking 80-85W charge and in about an hour it was charged and I see the consumption drop when it went from CC to CV, and when it terminated the charge (the battery diode goes from orange to white a bit sooner - it was still about 10W charging when it changed). But the presence of battery has no effect on the power up sequence, the missing battery only makes the orange battery led to start flashing about 30sec after the DC IN is applied.. it tries to apply some voltages to the battery, and after few tries the system decides its cant reach the battery.. so an error is given).
https://www.badcaps.net/forum/troubl...ardview-needed
Using a bench power supply on the DCIN jack (as it seems that the PSU keying pin is not wired at all - series resistor R6003 is not populated), and using a shoring wire for the power button (either pin 5 on CN251 keyboard, or one end of its R301 pullup), I can initiate the startup sequence. The Power LED lights up white, and the sytem draw jumps from 1W (off) to 8W (attempt to start state).
It follows the power sequencing diagram on page 4, down to the EC_PWRSW# signal, which is a short negative pulse generated by the EC, and after translation to the CPU side (SB_PWRBTN#) where I still observe the pulse, nothing happens. The expected action would be, that the Ryzen SOC would raise the SLP_S5# and SLP_S3# (both are pain to probe, but i uncovered two vias next to the EC) - yet these signals stay constant low, and do not react to the SB_PWRBTN# feed to the SoC. The signals have no pullups, so they are likely push-pull on the FP6 cpu package.
The voltages (P3V3A, P1V8A, P0V75A) are up, VSUS_PWRGD power good also indicated ok), and RSMRST# did change as shown in the diagram.
Any idea what could be wrong, or is there any prerequisite on the SoC to get out of off state?
I do not have any FP6 platform docs, which would be helpful to understand the power FSM in the SoC.
Meanwhile I also charged the battery in this body - it started taking 80-85W charge and in about an hour it was charged and I see the consumption drop when it went from CC to CV, and when it terminated the charge (the battery diode goes from orange to white a bit sooner - it was still about 10W charging when it changed). But the presence of battery has no effect on the power up sequence, the missing battery only makes the orange battery led to start flashing about 30sec after the DC IN is applied.. it tries to apply some voltages to the battery, and after few tries the system decides its cant reach the battery.. so an error is given).
https://www.badcaps.net/forum/troubl...ardview-needed
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