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| 222Lab_Test222:
--- Quote from: Harry_22 on November 12, 2024, 05:14:13 am --- Now stay the first channel on Reset# pin as it is. Connect the second channel to Bios Output Enable#. Play with Time/Div. Please remember you will get a signal at every power on. --- End quote --- Non Working Board 1st image, Working Board 2nd image Yellow is reset pin, blue is OP ENABLE |
| Harry_22:
Just like a picture from a radio engineer's handbook. Nice to see! Check for 66 MHz quartz. One pin should work. Use the probe 1:10 if possible. |
| Harry_22:
Do the following for me. On the working board press your finger against the 66 MHz crystal pins. Then turn it on and listen for beep. If it doesn't help, lightly wet your finger and try again. |
| 222Lab_Test222:
--- Quote from: Harry_22 on November 12, 2024, 07:16:29 am ---Do the following for me. On the working board press your finger against the 66 MHz crystal pins. Then turn it on and listen for beep. If it doesn't help, lightly wet your finger and try again. --- End quote --- I Tried, Even when i didn't press, its a one tone beep always on starting of motherboard. After I pressed, I did not see any changes, I used alcohol as well BUT its same beep, not a different one. |
| 222Lab_Test222:
--- Quote from: Harry_22 on November 12, 2024, 06:26:40 am ---Just like a picture from a radio engineer's handbook. Nice to see! Check for 66 MHz quartz. One pin should work. Use the probe 1:10 if possible. --- End quote --- In working as well as non working board its same, I see a wave and a 66MHz frequency. |
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