ATARI 1040 STe black RGB good Composite

zChris · Post by **zChris** » Wed May 04, 2022 8:44 pm

Opps i mixed the two signals. It's the Horizontal signal that's the bottom picture. The Horizontal at the chips seems correct though, i'll see if i can get a picture.

Post by **rubber_jonnie** » Wed May 04, 2022 9:01 pm

zChris wrote: Wed May 04, 2022 8:44 pm Opps i mixed the two signals. It's the Horizontal signal that's the bottom picture. The Horizontal at the chips seems correct though, i'll see if i can get a picture.

I can see you measured the 50Hz v-sync signal, but did you measure the h-sync signal, and if so, what was it?

zChris · Post by **zChris** » Wed May 04, 2022 9:14 pm

Solved! It was the resistor that has somehow broken. Nothing that i can see visually though. but when i bodge over the resistor for Horizontal i get a picture

Post by **exxos** » Wed May 04, 2022 9:45 pm

zChris wrote: Wed May 04, 2022 9:14 pm Solved! It was the resistor that has somehow broken. Nothing that i can see visually though. but when i bodge over the resistor for Horizontal i get a picture

What resistor are you referring to exactly ? IIRC there are no resistors on V&H sync ?

zChris · Post by **zChris** » Thu May 05, 2022 7:15 am

This is the resistor om talking about:

: dsOpmPB.png (218.13 KiB) Viewed 1640 times

since the ohm is so small i'm thinking on just having a wire there instead

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ATARI 1040 STe black RGB good Composite

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