The RGB2HDMI won't give me a stable MODE7 on these new PCBs.
I noticed an issue in the original BOM for the board where C48 is specified as 220pF but the Service Manual gives it as 270pF. I'll pop mine out and change it later, to overcome this, I replaced IC37 with a 74F04 and the problem went away (for the most part)
If increasing the capacitance of C48 to 270pF improves the stability, I will update the PDF. I have an X7R ceramic 220pF/50V at this location.
I noticed an issue in the original BOM for the board where C48 is specified as 220pF but the Service Manual gives it as 270pF. I'll pop mine out and change it later, to overcome this, I replaced IC37 with a 74F04 and the problem went away (for the most part)
If increasing the capacitance of C48 to 270pF improves the stability, I will update the PDF. I have an X7R ceramic 220pF/50V at this location.
Statistics: Posted by maniacminer — Thu May 09, 2024 12:15 am
