Marantz MM8077 Service Manual

16
1. CPU Version check
The rmware version is displayed on LEDs as follows.
V1(D407) V2(D406) V3(D405) Version
ON OFF OFF Ver1
OFF ON OFF Ver2
ON ON OFF Ver3
OFF OFF ON Ver4
ON OFF ON Ver5
OFF ON ON Ver6
ON ON ON Ver7
1.1. Protection Log display
The last time protection log is displayed on LEDs as follows if the Service button is pushed(>5sec) in the Service
mode. For detail and coping process, please refer to “SYSTEM ERROR”.
V1(D407) V2(D406) V3(D405) Cause of protect
OFF OFF OFF No protection log
OFF OFF ON Detection of over current over 200msec on Power AMP
OFF ON OFF Detection of DC on Power Amp output
OFF ON ON -
ON OFF OFF
Detection of over current below 200msec on Power
Amp
ON OFF ON
Detection of abnormality on +/-38V, +/-15V supply
or power amp supply
ON ON OFF Detection of abnormal heat of Power Amp
ON ON ON -

Marantz MM8077 Specifications

General

Damping factor	100
Amplifier class	-
Frequency range	10 - 100000 Hz
Output impedance	8 Ω
Input sensitivity	1200 mV
Audio output channels	- channels
Peak power per channel	- W
Signal-to-Noise Ratio (SNR)	105 dB
Total Harmonic Distortion (THD)	0.03 %
RMS power output per channel (8 Ohm)	150 W
Pre out port	No
Line inputs (RCA)	1
Speakers connectivity type	RCA
Purpose	Home
Material	Aluminium, Glass, Metal
Product color	Black
Channels quantity	7 channels
Connectivity technology	Wired
Power consumption (standby)	0.4 W
Power consumption (typical)	880 W

Weight and Dimensions

Depth	384 mm
Width	440 mm
Height	185 mm
Weight	18000 g