| Electronics > Repair |
| What more i can do? |
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| Harry_22:
Have you checked them from both sides? SW2 also has different positions |
| 222Lab_Test222:
--- Quote from: Harry_22 on November 26, 2024, 07:02:16 am ---Have you checked them from both sides? SW2 also has different positions --- End quote --- SW2 is fine, SW2 3rd PIN is HIGH other are LOW. Whereas SW4 all PIN are HIGH. BUT if there is beep i need to turn off so 4th PIN is set LOW. |
| Harry_22:
--- Quote from: 222Lab_Test222 on November 26, 2024, 07:13:12 am --- --- Quote from: Harry_22 on November 26, 2024, 07:02:16 am ---Have you checked them from both sides? SW2 also has different positions --- End quote --- SW2 is fine, SW2 3rd PIN is HIGH other are LOW. Whereas SW4 all PIN are HIGH. BUT if there is beep i need to turn off so 4th PIN is set LOW. --- End quote --- Don't trust your eyes. Have you measured them? |
| Harry_22:
Resume Tracing the Q0 (Data) signal you can see that the no-good (NFG) board goes only through seven identical clock cycles with the good board. Please see below all the traces from NFG and the Good boards. I suspect that one Data or Address signal is corrupted. To clarify this please measure all the lines of Address (0...17) and Data (0...15) buses (sorry I have no ideas for today). I suggest you do a manual reset to make measurements easier. Please see the attached picture. If you doubt the shape of the signal, look it on the working board. |
| Poroit:
G'day All, It looks like the fault finding is Bogging Down. :( I have attached a summary of Replies that I cannot see were resolved. Kindly review and advise. I emailed Jotrin yesterday for a WE001BF Datasheet after chatting to WACOM but I won't hold my breath waiting. |
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