Panel lock function, Disabling all key button operations, Disabling all button operations except volume – Marantz AV 10 Reference 15.4-Channel Home Theater Preamplifier/Processor User Manual

Panel lock function, Disabling all key button operations, Disabling all button operations except volume | Marantz AV 10 Reference 15.4-Channel Home Theater Preamplifier/Processor User Manual | Page 158 / 336