Marantz Icemaker, Service Manual, Page: 18 / 86

1. Version Display
Microprocessor (U101) / USB DAC (U401) version check
(1) Connect the mains cord into the unit.
(2) Press the POWER button with pressing the SOURCE DIRECT button on the Unit.
(3) The firmware version is displayed on the front LED. (Display time is only for 3 seconds.)
The firmware version is displayed in the lighting position of LED.
Ex. :
Light up USB-DAC- [1 ], Version : 1
Light up USB-DAC- [1 ] and COAXIAL [4 ], Version : 5
Light up USB-DAC- [1 ] and RECORDER [8 ], Version : 9
(4) The USB-DAC (DSP) version is displayed on the front LED. (Display time is only for 3 seconds.)
Lighting position is same as firmware version.
(5) Each LED light up then all LED light up.
(6) Turn off the power to quit Service Mode. (The unit to the default status.)
2. How to change the Auto Standby Mode
Turning Auto Standby mode off.
Press and hold SOURCE DIRECT for more than 5 seconds to turn the Auto Standby mode off.
The power indicator flashes once.
Turning Auto Standby mode on.
Press and hold SOURCE DIRECT for more than 5 seconds to turn the Auto Standby mode on.
The power indicator flashes three times.
N Region : Tuning Auto Standby mode OFF by default. F/U/K Region：Tuning Auto Standby mode OFF by default.
1 2 4 Version: 8
SPECIAL MODE
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