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5-21
Modulation oscillator frequencies
Test procedure
C5359
INPUT
LF OUTPUT
UUT
Counter
Fig. 5-13 Modulation oscillator frequency test set-up
(1) Connect the test equipment as shown in Fig. 5-13.
(2) On the UUT set:
FM1 Freq 10 Hz
(3) Record the frequency measured by the counter against each of the modulation oscillator
frequencies shown in Table 5-43.
Modulation oscillator distortion and LF output flatness
Test procedure
LF OUTPUT
UUT
C2569
INPUT
Audio analyzer
Fig. 5-14 Modulation oscillator distortion test set-up
(1) Connect the test equipment as shown in Fig. 5-14.
(2) On the UUT set:
FM1 Freq 1 kHz