Motorola 6816101H01-A service manual R425 R426 R216 FL701 R215

3-4 Hardware Tuning Setup and Procedure

4.Using the ceramic tool, adjust R425 to tune high power (refer to Figure 3-2).

R425

R426

R216

FL701

R215

Figure 3-2 Tuning Ports

2.3.2Low Power

1.Connect the radio to power meter.

2.Set the radio to the appropriate tuning frequency (refer to Table 3-1).

3.Key up the radio.

4.Using the ceramic tool, adjust R426 to tune low power (refer to Figure 3-2).

2.3.3Frequency Tuning

1.Set the radio to the appropriate tuning frequency (refer to Table 3-1).

2.Using the ceramic tool, adjust FL701 to tune the frequency (refer to Figure 3-2).

2.3.4Modulation Balancing

1.Set the radio to the appropriate tuning frequency (refer to Table 3-1).

2.On the test equipment, set the following configurations:

Audio bandwidth: 0.25Hz to 15,000Hz.

De-emphasis: Off

FM: Peak negative

3.Using the Audio Analyzer, inject a 0.3kHz tone to the radio through the test box.

4.Key up the radio.