TSB Document:

Affected Component: EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS

Summary
Flash: Poor Speaker Sound Performance This bulletin involves updating the Amplifier (AMP) software. The customer may describe one or more of the following symptoms/conditions: ? Speakers not loud enough. ? Speakers buzz/rattle. ? Poor sound quality from speakers. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? B1474-13-Channel 5 Audio Speaker Output - Circuit Open ? B1479-13-Channel 6 Audio Speaker Output - Circuit Open

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Date Published
OCT 28, 2015
NHTSA TSB #
10217435
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