Marantz MM8003 Service Manual

4
4. FACTORY MODE
Check that the CPU Version Indication LEDs [V1(D407)/
V2(D406)/V3(D405)], Cooling Fan, Power Relay (RY21/
RY22) operate properly.
Connect the mains cord to the unit.1.
Press the 2. POWER ON/OFF button and turn on the unit.
Press the 3. Factory Key (SW41) on the CPU PWB.
All the CPU Version Indication LEDs [V1(D407)/4.
V2(D406)/V3(D405)] light up.
The Cooling Fan starts running. (Low or High)5.
Press the 6. Factory Key (SW41) again.
Switch the Power Relay (RY21/RY22) to the HIGH 7.
voltage.
Press the 8. Factory Key (SW41) again.
Switch the Power Relay (RY21/RY22) to the LOW 9.
voltage. Thereafter, at every push of the Factory Key,
the Power Relay must be switch to HIGH or LOW.
4. FACTORY MODE
CPU Version Indication LED [V1(D407)/V2(D406)/
V3(D405)], Cooling FAN
、電源電圧切り替えリレー(RY21/
RY22)
の動作確認を行います。
本機に電源コードを接続します。
1.
POWER ON/OFF2.
ボタンを押し、本機の電源を入れます。
CPU PWBの3. Factory Key (SW41) を押します。
CPU Version Indication LED [V1(D407)/V2(D406)/4.
V3(D405)]
が全て点灯します。
Cooling FAN が回転します。(Low or High)5.
再度6. Factory Key (SW41)ボタンを押します。
電源電圧切り替えリレーを
(RY21/RY22)をHigh電圧側に切7.
り替えます。
再度
8. Factory Key (SW41)ボタンを押します。
電源電圧切り替えリレーを
(RY21/RY22)をLow電圧側に切9.
り替えます。以下Factory Key (SW41)を押すたびに電源
電圧切り替えリレーを
(RY21/RY22)をHigh電圧 <-> Low電
圧を切り替ます。
Factory Key (SW41)
Service Key (SW42)[V3(D405), V2(D406), V1(D407)]
CPU Version Indication LED

Marantz MM8003 Specifications

General

Damping factor	100
Amplifier class	-
Frequency range	8 - 100000 Hz
Input sensitivity	2400 mV
Audio output channels	7.1 channels
Peak power per channel	170 W
Signal-to-Noise Ratio (SNR)	105 dB
Total Harmonic Distortion (THD)	0.03 %
RMS power output per channel (8 Ohm)	140 W
AC (power) in	Yes
Speakon ports quantity	8
Purpose	Home
Product color	Black
Cables included	AC
Connectivity technology	Wired
Power consumption (standby)	0.4 W
Power consumption (typical)	880 W

Weight and Dimensions

Depth	384 mm
Width	440 mm
Height	184.5 mm
Weight	17900 g