On some mack trucks built between august 19, 2014 and august 19, 2016 possible audible feedback may occur...
Mack technical service bulletin FSB 395-001 for 2015-2017 Mack Gu, 2015-2017 Mack Cxu and 2015-2017 Mack Chu and others.
- Bulletin number
- FSB 395-001
- Component
- Equipment: electrical: radio/tape deck/cd etc.
- Summary
- On some mack trucks built between august 19, 2014 and august 19, 2016 possible audible feedback may occur while using the am/fm bands when the cb microphone is keyed. Keying the microphone could also cut the volume of the radio when using the am/fm bands. This issue has been caused by a filtering problem inside the radio. To correct the issue a filter should be installed using the following procedure.
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