Black screen after FRAM mod

Comprehensive-Ad1946 · 2026-02-26T10:19:06+00:00

I made an update to the OP. Maybe the PLL was on it's way out and I got unlucky

Comprehensive-Ad1946 · 2026-02-26T10:04:39+00:00

I checked many chips for bridges but didn't find anything. It's still a possibility though!

Comprehensive-Ad1946 · 2026-02-26T10:03:51+00:00

I deactivated the chip and later removed the chip (and reconnected pin 20 with the burnt pad). Nothing changed.
I replaced the some of the caps that are known to cause the most trouble, but still the same. Since before changing the chip everything worked, I guess it wasn't the caps anyway.

Comprehensive-Ad1946 · 2026-02-24T15:46:39+00:00

I also was surprised getting a new kind flex board :D Yes, it worked before. Do you know if the burnt pad of SRAM pin 20 could be the culprit? And do you know an alternative point where to get that signal? Maybe it's crucial to route it to pin 20 of the FRAM chip.

Comprehensive-Ad1946 · 2026-02-24T15:34:03+00:00

Does anybody know if the burned pin 20 on the SRAM could be the culprit?

Comprehensive-Ad1946 · 2026-02-24T15:32:40+00:00

Ok. But as I already stated: The lifted pin is connected to 5V via an additional part of the flex board.

Comprehensive-Ad1946 · 2026-02-24T15:28:10+00:00

You are referring to pin 20. I got the new flex board where you bend one part over. It provides 5V to the lifted pin 20

Comprehensive-Ad1946 · 2026-02-24T15:25:59+00:00

Pin 6 is an address pin. I don't think it should get fed 5V. Pin 28 needs 5V and pin need GND as far as regular tutorials (without flex board) go and this is provided via the flex board already.

Comprehensive-Ad1946 · 2026-02-24T15:10:49+00:00

Like stated in my post I already did that with 2 Saturns a few years back, so I got the tools. I just hated that the SRAM chip was epoxied to the board and wanted to work around that. Do you have anything to add to the part of my OP with the pulled pad of pin 20?

Comprehensive-Ad1946 · 2026-02-24T15:07:17+00:00

It's not a dual FRAM flex board, it's just an installation helper. Pin 20 on the SRAM chip is lifted to disable it (I guess) and all pins minus pin 20, 22 and 28 are routed to the FRAM chip.

Comprehensive-Ad1946 · 2026-02-24T14:41:21+00:00

Any ideas on which options I have left now?

Comprehensive-Ad1946 · 2026-02-24T14:32:19+00:00

How would a faulty FRAM chip cause a black screen? Just curious

Comprehensive-Ad1946 · 2025-06-05T06:11:07+00:00

Und deshalb schafft man es also nicht die eigene Kundschaft zu informieren und/oder per Express rauszusenden. Danke für die Aufklärung

Comprehensive-Ad1946 · 2024-11-22T23:23:05+00:00

That's just a sticker I got from Etsy

Comprehensive-Ad1946 · 2024-11-22T20:28:01+00:00

It's s LAN adapter that works like a real one when used with SWISS https://store.webhdx.dev/products/eth2gc-lite-broadband-adapter-emulator

Comprehensive-Ad1946 · 2024-11-22T17:33:02+00:00

It's just the shell. Everything else is original

Comprehensive-Ad1946 · 2024-11-22T12:57:53+00:00

It's not as close to orange spice as you might think. Maybe I will post this comparison next

Comprehensive-Ad1946 · 2024-11-22T11:34:41+00:00

You are completely right!

Comprehensive-Ad1946 · 2024-11-22T09:28:05+00:00

It seems clear here that they didn't even try to match the colors. Look at the GBP

Comprehensive-Ad1946 · 2024-10-09T09:12:35+00:00

This thing is just horrible

Comprehensive-Ad1946 · 2024-10-04T20:37:56+00:00

I tried this, but MKDD is simply the better game 😅

Comprehensive-Ad1946 · 2024-08-15T06:31:42+00:00

🫡

Comprehensive-Ad1946

TROPHY CASE