Atari 130XE Repair with S-Video modified cicuit
When you remove a chip with the screwdriver you have to be careful to lift the chip from the socket and not the socket from the PCB :lol:
That said and after bridged the broken pcb track of the GTIA and replaced a failed RAM the computer started working properly.
After the repair i have also make a improvement of the S-Video signal (XE series support the S-Video output).
This simple mod replaces/adds some resistors and capacitors that in the XE version are wrong for a perfect S-Video signal.
The instruction can be found in the link at the end of this article.
NOTE: The description of the STEP 4 is incorrect, it’s not Q2 but Q3 and in the STEP 5 is not Q3 but Q2.
NOTE2: Obviously after assemble the computer i have noticed the “B” key was stuck, the key piston have a crack, after replace it now the button work properly.
Gallery of the repair:
Download: Svideo Atari 130XE Mod (543)
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