Difference between revisions of "High Speed"

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(Created page with "{{WIP}} ==Game Information== {| class="wikitable" |- !Manufacturer !! System !! Year !! Model !! Produced |- |Williams || System 11 || 1985 || 541 || 17,080 |} [http://www...")
 
 
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==Game Information==
 
==Game Information==
 
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== Game-Specific Issues ==
 
== Game-Specific Issues ==
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===MPU Schematics Error for U21 & U22 ===
 
[[File:WMS Sys11 U21 U22 Incorrect.png|thumb|left|200px|Incorrect schematics for U21 and U22 in High Speed manual]]
 
[[File:WMS Sys11 U21 U22 Incorrect.png|thumb|left|200px|Incorrect schematics for U21 and U22 in High Speed manual]]
 
[[File:WMS Sys11 U21 U22 Correct.png|thumb|right|200px|Corrected schematics for U21 and U22 in Pinbot manual]]<br>
 
[[File:WMS Sys11 U21 U22 Correct.png|thumb|right|200px|Corrected schematics for U21 and U22 in Pinbot manual]]<br>

Latest revision as of 11:23, 20 March 2023

1 Game Information

Manufacturer System Year Model Produced
Williams System 11 1985 541 17,080


IPDB Link (including software and schematics)


High Speed Playing Tips and Rule Sheet

High Speed Shop Guide

2 System 11 Specific Issues

See System 11 Specific Issues

3 Game-Specific Issues

3.1 MPU Schematics Error for U21 & U22

Incorrect schematics for U21 and U22 in High Speed manual
Corrected schematics for U21 and U22 in Pinbot manual


The High Speed schematics for the sound section (page 3 of 4 of the MPU board) have some incorrect info. The error shows the signals coming from U6 (74LS74) and U7 (74LS139) going to the wrong sound ROMs. Flip-flopping the U21 & U22 chips resolves the errors. No visible revisions or notes are listed between the incorrect and correct schematics.



Return to Williams System 9 and 11 main page.