Dad, Software Engineer, Creator of https://xitter.cf/t.co/o03dy3LjOx. Support my work on Patreon https://xitter.cf/t.co/otrXlGPq2F

San Francisco, CA
Joined January 2009
I have an account on the other platform but haven't started regular posting there... haven't seen enough activity yet. But if you want to preemptively follow, here's the details:
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Here's the last drop of PVM 2030 scans - Supplement 2, 3, and 4! These contain updated schematics for the D, B1, and B2 boards. Refer to the cited serial number ranges or part number variations to figure out if they apply to your model. crtdatabase.com/crts/sony/so…
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Thanks once more to chrysolophus.amherstiae and @DerfJagged for sourcing a physical copy of this incredibly rare service manual so we could scan it!
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Following up my last post about the Sony PVM 2030 service manual scan, here's ANOTHER ONE. This time, Supplement 1 for serial #2,000,000+ models. These are the ones where Sony switched from the VTR port to an S-Video port on the back. archive.org/details/sony-pvm…
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Once again thanks to @DerfJagged and chrysolophus.amherstiae for collaborating on this effort, more supplements for the 2030 still coming! crtdatabase.com/crts/sony/so…
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The first ever PDF copy of the Sony PVM 2030 service manual has now been uploaded to archive.org. archive.org/details/sony-pvm…
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You can find this manual directly on archive.org, or on the CRT Database entry here: crtdatabase.com/crts/sony/so…
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Also, if you're still following me here, consider following me on bsky instead. I don't come on this website much anymore for obvious reasons. My account is bsky.app/profile/crtdatabase…
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CRTDatabase should be back up within ~30 min
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Andy King 📺 retweeted
Update: its fixed! Turns out there is a 5v reg on the TV board for the SNES to use, but that wasnt even the problem. There's a PNP transistor that pulls the 5v low for reset and that transistor was dead. So 5v was being pulled low 100% of the time. I'll document the fix on crtdb.
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I'm putting out an SOS for anyone in the community that knows SNES hardware like the back of their hand. I don't mean like installing mods or replacing capacitors, I need someone who knows a SNES like the back of their hand and could diagnose a bad CPU, bad smd transistor, etc 🧵
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Forgot to share a full pic of the back
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Update: its fixed! Turns out there is a 5v reg on the TV board for the SNES to use, but that wasnt even the problem. There's a PNP transistor that pulls the 5v low for reset and that transistor was dead. So 5v was being pulled low 100% of the time. I'll document the fix on crtdb.
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After checking all the reference waveforms and voltages that should lead to getting horizontal drive from this IC, it seemed pretty clear that the problem had to be the IC itself. Nothing else was amiss. Sure enough, everything started working after replacing that IC.
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Now all that remained is replacing a lot of these old leaking capacitors and doing a full calibration.
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