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Vertical Collapse

Repair of:	Monitor (Wells Gardner WG4901)
Repair Type:	Part
Status:	InProgress
Contributed by:	Arcadenut
Symptom: Monitor has a solid white line through the center of the monitor (horizontally).

Solution: If you smacked the side of the monitor (gently) it would show the full picture briefly. This was an indication of a cold solder joint. Reflowing the solder on several suspect components (Q302, Q301, a couple of Caps), near the Vertical section of the board fixed the issue.