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F-26 F-26
ACTIVE SCR TEST (Continued)
TROUBLESHOOTING & REPAIR
MULTI-SOURCE
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FIRING BOARD
J5
J6
J8
J4
J7
Plug J4
1. Remove main supply power to the Multi-
Source.
2. Remove the roof and case sides.
3. Lower the front control panel and remove
Plug J4 from the Firing Board. See Figure
F.10.
FIGURE F.10. FIRING BOARD LED & PLUG LOCATIONS