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Re: ATARI 1040 STe black RGB good Composite
Posted: 04 May 2022 20:44
by zChris
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.
Re: ATARI 1040 STe black RGB good Composite
Posted: 04 May 2022 21:01
by rubber_jonnie
zChris wrote: 04 May 2022 20:44
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?
Re: ATARI 1040 STe black RGB good Composite
Posted: 04 May 2022 21:14
by zChris
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 :)
Re: ATARI 1040 STe black RGB good Composite
Posted: 04 May 2022 21:45
by exxos
zChris wrote: 04 May 2022 21:14
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 :)
:bravo:
What resistor are you referring to exactly ? IIRC there are no resistors on V&H sync ?
Re: ATARI 1040 STe black RGB good Composite
Posted: 05 May 2022 07:15
by zChris
This is the resistor om talking about:
dsOpmPB.png
since the ohm is so small i'm thinking on just having a wire there instead :?