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wottle
replied to the thread
Battery bombed Centris 650’- corrupt video out
.
Looking at the image in Basilisk II, the black line repeats at pixel 2 (with the far left pixel starting at 0), then repeats every 32...
Oct 31, 2025
wottle
replied to the thread
Custom USB-C powered 8"display for the Apple IIc with STL files and build plan
.
Good point. I forgot you had brass inserts. I may need to do a bit of drilling and glueing. I'll let you know how I get it put...
Oct 31, 2025
I
iigs123
replied to the thread
Q610 VRAM issue
.
The screen shot I posted was captured on the Q610, then displayed on my macbook. I couldn't save as JPG or something else, so I took a...
Oct 31, 2025
J
joevt
replied to the thread
Q610 VRAM issue
.
You're not viewing that screenshot on the same computer that took the screen shot? Can you post a copy here (convert to png using...
Oct 31, 2025
J
joevt
replied to the thread
Battery bombed Centris 650’- corrupt video out
.
I think so. Looks like line 29 of one of the 32-bit buses. Maybe post the screenshot here so we can count the pixels. If the problem...
Oct 31, 2025
David Cook
replied to the thread
SE/30 -> Default state of NEC VRAM
.
If it were my board, I would remove both of those. Then, clean the area well to spot any broken traces. Then replace them with new...
Oct 31, 2025
Peter-Erik
replied to the thread
SE/30 -> Default state of NEC VRAM
.
So what do you think about the UE8 and UF8? Corrosion look severe if you compare it with rest of the board
Oct 31, 2025
David Cook
replied to the thread
SE/30 -> Default state of NEC VRAM
.
Yes! Absolutely. What worries me about your photo is that I'm not seeing any on-screen images from ROM. No cursor, disk, or desktop...
Oct 31, 2025
I
iigs123
replied to the thread
Battery bombed Centris 650’- corrupt video out
.
It seems like it would be on the D[0]-D[31] side. There are other video memory related signals that come out of the djMEMC chip you...
Oct 31, 2025
wottle
replied to the thread
Battery bombed Centris 650’- corrupt video out
.
Given that the corruption shows up in my screenshot, would the data lines be D[31:0], or are you talking about the PD[31:0]?
Oct 31, 2025
I
iigs123
replied to the thread
Battery bombed Centris 650’- corrupt video out
.
I'd check the rest of the data lines. I'm fighting a similar battle with a Q610. It is a slog :/
Oct 31, 2025
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