I have this A2000 Rev6 that was working great, until the other day, it just gives me a black screen, nothing else works except for the power led.
I've checked the PSU voltages and they look right (I've adapted an ATX PSU some time ago).
The battery was removed and Motherboard cleaned years ago, although I see some corrosion on the CPU socket (I've already orderer a new socket)
Now, the only reparation I see on this machine was that somebody replaced the crystal oscillator at some point, the solder points do not look factory soldered.
How can I test the oscillator? I have a multimeter with frequency test.
I see that the oscillator has 4 pins, where should I attach those pins?
If I want to test if the CPU is getting clock, which pins should I test?
Thanks!
