Lamp matrix shows Q98 drives that column. Any issue with the other lamps in the column, Left Jet, Right Jet, Bottom Jet, and Admit One?
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Lamp matrix shows Q98 drives that column. Any issue with the other lamps in the column, Left Jet, Right Jet, Bottom Jet, and Admit One?
Quoted from CadillacMusic:try wiggling plug J137 on your power board, and see what happens. If your lights change state (go from working to not or not working to working), it's a good sign you probably have a cracked solder joint on pin 1.
You'll find a drawing of your power driver board that shows the location of J137 on page 3-22 in the manual. Reflowing the solder on pin 1 may be all you need.
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