Redrawn Schematics & Chip Replacements

Obsolete Part | Replacement Part
8212 74153
9300 74195
9311 74154
9316 74161
9322 74157
I5610 82S123
I5523 82S16
ua741 NTE941M

If you want to have me redraw a schematic:

Keep in mind:

If one of these redrawn schematics is the reason you got your game fixed, or if you just found it helpful, please send me an e-mail. It encourages me to do more, because it proves that all the work that goes into this is not for naught.


Special note to KESBACH1: I used your Clean Sweep schematics without asking you. Please get in touch, It occured to me after redrawing them that I should've asked, even though they were on a public website. This note is up here because I know of no way to contact you and set things right.
I fully understand if you want me to remove the redrawn versions from the internet. Please let me know.

Special note to JASON SCOTT at the ARCADE MANUAL ARCHIVE: Same as above, if you have any problems with me redrawing your Space Race schematics, please e-mail me. This note is up here because I know of no way to contact you and set things right.
I fully understand if you want me to remove the redrawn versions from the internet. Please let me know.

Schematics I've Redrawn:

Atari

For the most part, Atari's schematics are quite legible.
That is why I have not needed to redraw very many...

Game Regular-Sized Download Easy-To-Read Download Notes:
Space Race (1973) Atari Space Race, REV - F ETR First schematic I redrew...

RAMTEK

RAMTEK has this weird signal naming convention where they just throw together random letters and numbers.
RAMTEK also has this nasty habit of leaving outputs unconnected in their schematics.
(Well, seemingly unconnected. They write the output signal name in the gate...)

Game Regular-Sized Download Easy-To-Read Download Notes:
Clean Sweep (1974) There are too many errors. I figured it would be better to wait until I have fixed most of them. I am in the process of reverse-engineering the game to change the signal names from stuff like 5TLG8 and 5BL57 to stuff that makes sense.
I have already identified stuff like 1H - 256H, 1V-256V, composite sync, VSYNC, HSYNC, HBLANK, etc.
Second schematic I redrew...

Schematics I want to redraw:

Game Availible on the internet? Anything Needed
SEE-FUN
Olympic Tennis (1973) No, but I know they are out there... I found and read a repair log in... Dutch? It left a lot to be desired. (Didn't mention chip locations!) The guy also mentioned that he had schematics, so I know they are out there... Just a lot of time, and copious amounts of tea. I have two boards, and a multimeter...
RAMTEK
Clean Sweep (1974) Yes, very difficult to find... Need edge pinout diagram.
Atari
Breakthu (1975?) No. Almost no references on the internet... Need everything. (schematics)
Crossfire (1975?) No. If someone gets schematics to me, I will prioritize it. Need everything. (schematics)

Schematics on the roster to be redrawn:

(This means someone has sent me everything needed, I just need to find time/get around to it...)

Game Who sent it to me: Anything Needed

This page was last updated 7/6/2018