SheepyChris
Member
Hey y'all,
I've recently been dealing with a non-working Wells Gardner D9400 that came in a Need for Speed Underground, upon first inspection IC301 (vertical) was blown into pieces and IC502 (optocoupler) had lots of green corrosion built upon it. Both were replaced alongside nearly all capacitors (filters, 2200uf 250v and some BPs were kept as I did not have replacements on hand) but the same behavior described in the thread's title continues to happen.
HOT tested fine but done so still in circuit (unclear to me if removal is preferred or not with this chassis), yoke tested 5.0 ohm vertical and 0.1 ohm horizontal which concerns me a tad bit knowing I've read values of 0.6 ohm elsewhere instead. I do plan to further test components in the power supply area as the relay in the degauss circuit doesn't get to click during the start up attempts either.
Has anyone faced a similar issue to this and/or have any suggestions on how to proceed? Thanks!
I've recently been dealing with a non-working Wells Gardner D9400 that came in a Need for Speed Underground, upon first inspection IC301 (vertical) was blown into pieces and IC502 (optocoupler) had lots of green corrosion built upon it. Both were replaced alongside nearly all capacitors (filters, 2200uf 250v and some BPs were kept as I did not have replacements on hand) but the same behavior described in the thread's title continues to happen.
HOT tested fine but done so still in circuit (unclear to me if removal is preferred or not with this chassis), yoke tested 5.0 ohm vertical and 0.1 ohm horizontal which concerns me a tad bit knowing I've read values of 0.6 ohm elsewhere instead. I do plan to further test components in the power supply area as the relay in the degauss circuit doesn't get to click during the start up attempts either.
Has anyone faced a similar issue to this and/or have any suggestions on how to proceed? Thanks!



