[NEED TO FIX] : Need help for diagnose a PU-8 Mainboard
Posted: June 12th, 2021, 9:57 pm
Hello, I am looking for information.
I have a PU-8 motherboard which is sick.
Here is the symptom: all the CDs that the PS1 turned on display on startup :
and then you can hear the CD player making noises identical to a CD player problem and it's freezing.
Freeze comes at the start of the game (a few seconds after the Playstation logo)
The console works fine in PSIO mode, so the CPU + work Memory system works fine.
The installation of the PSIO board is not the problem (problem before PSIO board installed)
So I need some idea on this problem, it will save me time and above all it will avoid transplanting all the chips to find the problem.
thank you in advance for your help
*Here is my first conclusion:
The problem comes from the CDROM control system :
- Mechacon?
- CXD2510Q?
- CXD1815Q?
- CXD2925Q?
- Memory of CXD2925Q?
Thanks
I have a PU-8 motherboard which is sick.
Here is the symptom: all the CDs that the PS1 turned on display on startup :
and then you can hear the CD player making noises identical to a CD player problem and it's freezing.
Freeze comes at the start of the game (a few seconds after the Playstation logo)
The console works fine in PSIO mode, so the CPU + work Memory system works fine.
The installation of the PSIO board is not the problem (problem before PSIO board installed)
So I need some idea on this problem, it will save me time and above all it will avoid transplanting all the chips to find the problem.
thank you in advance for your help
*Here is my first conclusion:
The problem comes from the CDROM control system :
- Mechacon?
- CXD2510Q?
- CXD1815Q?
- CXD2925Q?
- Memory of CXD2925Q?
Thanks