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576/Repairs: Difference between revisions
→Defects found without any noted symptoms
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Replaced Symptoms not noted, but seems to have less distortion in the display. | Replaced Symptoms not noted, but seems to have less distortion in the display. | ||
NOTE: All electrolytic caps which were previously replaced, (except for | NOTE: All electrolytic caps which were previously replaced, (except for one cap) tested as high ESR to the point of almost being shorts to ground. | ||
Undoubtedly loading they power supply and not filtering much at all. | Undoubtedly loading they power supply and not filtering much at all. | ||
Replaced all remaining electrolytics that could be found on the Right side. | Replaced all remaining electrolytics that could be found on the Right side. | ||
Voltages in all supplies became cleaner and most of the voltages increased as well. | Voltages in all supplies became cleaner and most of the voltages increased as well. | ||
Power supply is now well within the normal operating range. | Power supply is now well within the normal operating range. | ||
Type 576 | Type 576 electrolytic caps should be your primary suspect when repairing or adjusting these machines. | ||
Preemptive strike: | Preemptive strike: | ||
Replaced K101 K102 and K103 Relays. | Replaced K101 K102 and K103 Relays. | ||
NO symptoms or malfunctions noted. | NO symptoms or malfunctions noted. | ||