Home Theater Questions? Ask a Technician for Answers ASAP
Hi and welcome to JustAnswer,
Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, have you checked the speaker / wiring? And have you tried all the CHANNELs?
Sorry, what I meant was to individually check the speakers using a continuity tester (multi-meter) or in its absence, a single 1.5V AA battery. The idea is to determine if the speaker(s) would show a resistance or click (with the battery).
The alternative to good speakers/wires would be an internal hardware issue. The M27 then would have to be opened up for visual inspection, voltage/continuity/resistance checks, confirm faults and effect repairs.
If so, are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even perhaps a soldering iron?
Equally important, could you make use of the repair/Service Manual or at the very least, the schematic diagrams?