Bose 301 AVM Service Manual download pdf (Page 69)

AV35 Adjustment/Performance Verification Procedures

5. FM Stop Level Adjustment, TAP

5.1 Set the RF generator to 98.1 MHz (83.0 MHz for

Japan), 1 kHz mono modulation, pilot off, 75 kHz

deviation, 30 dBf, at the unit’s FM antenna input.

5.2 Issue the TAP command TM SET 3 (TM SET 4

for Japan).

5.3 Switch the RF generator to 98.7 MHz (83.3

MHz), 35 dBf at the units FM antenna input.

5.4 Place the unit into seek and verify that it stops at

98.7 MHz.

5.5 Reduce the RF generator to 25 dBf at the units

FM antenna input.

5.6 Place the unit into seek. Verify the radio does

not stop at 98.7 MHz.

6. FM Stereo Threshold Setting

6.1 Set the RF generator to 98.1 MHz (83.0 MHz for

Japan), 1 kHz L= -R modulation, pilot 10%, 75 kHz

deviation, 40 dBf, at the unit’s FM antenna input.

6.2 Issue the TAP command TM SET 5 (TM SET 6

for Japan).

6.3 Increase the RF generator to 45 dbf. Verify the

radio is in stereo mode.

6.3 Decrease the RF generator to 35 dbf. Verify the

radio is in mono mode.

7. Completion of Tuner Adjustments

Note: Any adjustments made, must be stored to the

EEPROM.

7.1 Enter the TAP command “NV” (without the

quotes).

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Bose 301 AVM Service Manual Page 69