Chapter 8 461
IF Section
Cal Oscillator Assembly (P/O A4)
pin 3 with an oscilloscope. The signal should be 20 mV peak-to-peak
±25% (with +2.5 V of dc bias). If the signal measures outside these
limits, the fault is prior to the audio amplifier (block T).
7. If the signal is correct, troubleshoot the audio amplifier and speaker.
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