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Check 12, Transformer Secondary Voltage
1. Turn o the 4349B.
2. Disconnect the transformer secondary connector from connector \J18" on the A1 Main
Board Assembly. Refer to Figure 4-13 for the connector location.
3. Turn the 4349B on.
4. Using a multimeter, check if the transformer secondary voltage is between 13 V and 17 Vac.
5. If passed, replace the A1 Main Board, otherwise replace the transformer.
Figure 4-13. Transformer Secondary Voltage Check
T roubleshooting
4-17
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Troubleshooting
