Repair manual

PS2 400 Repair
Repair.fm 47
6.2.1.3 Power Supply Testing
Air Test Cable
Air test cable insulation for resistance using a Megger tester between
conductors.
—Replace power supply cable if readings fall below 30 MΩ.
Water Test Cable
1. Water test cable insulation for resistance using a water tank. This
testing method may detect minute insulation flaws that air test will
not.
2. Submerse cable in a water tank with conductors on both ends of
cable above water level. After 24 hours, test cable insulation using
a Megger tester between conductors and metal container.
—Replace power supply cable if readings fall below 30 MΩ.
Test Capacitor
1. Dry capacitor (o) thoroughly before testing.
IMPORTANT: If using heat gun, do not exceed temperatures of
60°C (140°F).
2. Set circuit tester to 100KΩat resistance and connect between both
terminals of the capacitor.
—Reuse capacitor when test indicator shakes once and comes
back slowly.
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