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F-24 F-24
STATIC SCR TEST (Continued)
TROUBLESHOOTING & REPAIR
MULTI-SOURCE
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7. Repeat previous step(s) testing SCR 2,
SCR 3, SCR 4, SCR 5, and SCR 6.
To further check the SCRs’ functions use an
SCR tester and proceed to Active SCR Test.
8. When test is completed, reconnect the
positive bridge leads to the shunt.
9. Reconnect any secondary leads removed
from the SCRs.
10. Reconnect Plug J4 into the firing board.
11. Replace the case top, sides and control
panel.
Remove
Red Paint
Anode
Cathode
FIGURE F.9. SCR HEAT SINK TEST POINTS