New Haven, CT
Quoted from fzrvette:The five pop bumpers on top three stay on when I power it up
Which 3 (by number):
viperrwk
(Topic ID: 134506)
Linked Games
Time Warp
Williams, 1979
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Quoted from girloveswaffles:Whoa, Whoa, Whoa!
Lets go back a few posts and catch a mistake here! The diagram of the play field is a switch diagram. Look at the top of the page shown here:
Time Warp switches2.jpg
Switches 20, 21 and 23 are the scoring switches for three of the jet bumpers (20= Left Center Jet bumper, 21 = Left Bottom Jet Bumper and 23 = the right Jet Bumper.) There are only 21 solenoid (and two flipper coils) on Time Warp. The switches in the diagram are from the switch matrix. These switches are for scoring ONLY. There should be two switches on each of the bumpers. One that is activated by the bumper skirt, and one (the scoring switch) that is triggered when the bumper pulls down. Solenoid 16-22 on the driver boards are known as "Special Solenoid". Special Solenoid switches are not part of the switch matrix.
They are triggered by the skirt switch on each bumper, and fire the solenoid circuit directly from the driver board (theses solenoids can also be fired by logic control like in the solenoid test). The scoring switches have absolutely NOTHING to do with telling the driver board to fire a special solenoid, rather, when a special solenoid is fired, it closes the score switch when it fires. If you take the score switch out and leave the trigger switch in, the bumpers will still fire, but not score.
Solinoids.jpg
The bumpers solenoids are:
Solenoid name Special solenoid # Drive transistor Scoring switch
Left center jet bumper 18 Q-4 20
Left Bottom Jet6 Bumper 19 Q-8 21
Right Jet Bumper 21 Q-10 23
Here are some links for some of the documentation for the game:
http://mirror2.ipdb.org/files/2568/Williams_1979_Time_Warp_English_Manual_no_schematics.pdf
http://mirror2.ipdb.org/files/2568/TimeWarp_Essentials_Only.pdf
Now you know which transistors to check, and where to work back from.
The reason I used the switch diagram and cropped it is because it is the only image in the manual on IPDB which individually numbered the pop bumpers so the OP could identify the pops which were not working and not to further confuse. Notice I didn't mention switches at all in my post.
The bumpers in the switch diagram labeled 20 and 21 are driven through IC6 and the one labeled 23 is driven through IC7. The one "mistake" was the typo in identifying the predriver for Q8 which is Q7 and not Q5. Brain fart is all I can chalk that up to.
Thank you for your thorough explanation for the OP on how the special solenoids work. GL to the OP on getting this resolved.
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