You have followed all of the right steps so far. Nice job.

I might be concerned about the craptastic two position DIP switch that is on that board to select between sounds and bongs I think. Set the switches to the position that you like and then use your continuity meter to ensure that closed switches are in fact closed.

—
Chris Hibler - CARGPB #31
Http://chrishiblerpinball.com/contact
http://www.PinWiki.com/ - The new place for pinball repair info

Time Warp is a System 4 game - might want to change the title.

So you replaced the socket for the ROM and CPU. That is a good start.

Do you have a logic probe? If so, when it does not start, probe the clock, address and data bus pins to see if the CPU is running.

How do the legs of the ROM look? Are they tarnished? I like to clean them with a fiberglass sanding pen when inserting them in new sockets. I use a large, square shank screwdriver to lay the legs against as I gently brush them in one direction from chip body to the end of the leg. This minimizes the chance of breaking a leg off. CPU and PIAs don't typically need that treatment.

Did you replace the capacitors?

Time Warp is in fact a system 6 machine.
-Mike

ooops, you are right. I was confused by the IC1, IC2 and IC3 discussion. Those are System 4 sound board numbering.