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TROUBLESHOOTING & REPAIR
MAIN TRANSFORMER (T1) VOLTAGE TEST (continued)
FIGURE F.7 - MAIN TRANSFORMER SECONDARY LEADS TO
COMMON BUS VOLTAGE CHECK
COMMON
BUS
CHOKE
SECONDARY | MAIN |
LEADS (6) | TRANSFORMER |
9. Test with an AC voltmeter for approximately | NOTE: The secondary voltages will vary if the |
55 VAC from each of the six main trans- | input line voltages vary. If any one or more of the |
former secondary leads to the common bus | voltage checks are incorrect, check for loose or |
connected to the output choke. See Figure | faulty connections. See the Wiring Diagram. If |
F.7. | the leads and connections are OK, the main |
| transformer may be faulty. |
