Centron Technologies MS930A, Руководство по обслуживанию

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5-6. Adjustment of RF
Following procedures describe standard check procedures for the RF circuitry.
Refer to [Figure 5-3] below for test set-up, and schematic diagrams and board layout
diagrams in Chapter 7.
(1) Set up test equipment according to the [Figure 5-3].
(2) Set DC power supply at 12 volts.
Be sure to set a current-limit of the power supply at 20 amperes.
* CAUTION *
Failure to set current-limiter may cause RF transistors blown-up.
(3) If following tests are to be done with RF board assembly taken out from its
original location, prepare sufficient heat sinks and a cooling fan to avoid excess
temperature rise at transistors and transformers on RF board.