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  1. I recently purchased a non-working asteroids unit (serial # 28,XXX) from craigslist. Below is a brief detail of the unit: -Asteroids Rev -04 board -Monitor is a G05-802 -A/R I board As you can see in the attached pictures, there is a weird ripple in the test pattern and it is noticeable when playing as well. Also here are the 0-scope shots: http://imgur.com/a/15LpC ... The Y signal has an odd spot that doesn't match the manual (circled in red) I have replaced/checked the following so far: -Checked all fuses in unit, all are good. -Checked voltages from Power Brick. All checked good. -Checked unregulated input (~ 10-13 volts) and regulated 5V output (~5.10 V) on A/R I board. -Replaced caps on HV unit, Deflection Board, Main PCB, A/R I, Big Blue -Checked all diodes and transistors on Deflection and HV boards, all test good. -Checked bottle cap transistors mounted to chassis. All check good. Made sure all were NOT shorted to case. -Quickly checked all connectors and all seem to visually look intact. Re-flowed solder to all connectors on Deflection and HV board. -Replaced R100 and R101 on deflection board with 18 AWG wire. -Checked X and Y signal from game PWB with O-scope and the ripple is present so I believe the problem is from the PWB. Does anyone know what this ripple can be caused from on the game PWB?
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