Marantz MM8077 Service Manual

40
ST BY_LED
(PWR_button key)
1.PWR_BTN
4.CPU_GND
3.+5VL
2.ST BY_LED
ST-BY LED PCB
1.PWR_BTN 5.CPU_GND 4.+5VL 3.POWER_LED1 2.ST BY_LED
TO ST-BY LED PCB
TO
CPU PCB
FROM FRONT PCB
5.CPU_GND
1.PWR_BTN
4.CPU_GND
3.+5VL
2.ST BY_LED
5.CPU_GND
6.PROTECTION LED
7.AUTO POWER OFF LED
8.POWER_LED2 9.DISPLAY-KEY
1. DISPLAY-KEY
2. +5VL
(LIGHT_button key)
1. DISPLAY-KEY
2. +5VL
TO DISPLAY KEY PCB
FROM
FRONT PCB
POWER_LED1
PROTECTION_LED
AUTO POWER OFF LED
FRONT PCB
DISPLAY KEY PCB
POWER_LED2
3. CPU_GND
3. CPU_GND
10.+5VD 11. CPU_GND
ST BY_LED
(PWR_button key)
1.PWR_BTN
4.CPU_GND
3.+5VL
2.ST BY_LED
MM7055/8077
FROM
FRONT PCB
5.CPU_GND
MM7025
ST-BY LED PCB
CUP12337Z-1
CUP12337Z-2
CUP12337Z-3
CUP12337Z-4
POWER_LED1
Q901
SRA2202M
SW91
D901 RED LED
5 4 3 2 1
CN91
1110987654321
BN92
R902
1.5K
5 4 3 2 1
BN91
D902
BULE LED
R903 240
Q902
SRA2202M
C902 0.1uF
D903
BULE LED
C908 OPEN
C907 OPEN
BN900
Q904
SRA2202M
D906 RED LED
R907
1.5K
C909 OPEN
C910 OPEN
C911 OPEN
3 2 1
BN93
SW93
3 2 1
CN93
R904
240
C903 0.1uF
D904
BULE LED
R905
240
Q903
SRA2202M
C904 0.1uF
D905
BULE LE
D R906
240
C905 0.1uF
Q905
SRA2202M
D907 RED LED
R908
1.5K
D908 BULE LED
R909
240
Q906
SRA2202M
C906 0.1uF
R901 1K
R910
1K
C912 1000P
C901 1000P
Q907
SRA2202M
SW92
D909 RED LED
5 4 3 2 1
CN92
R913
3.3K
R912 1K
C913 1000P
D913 OPTION
D912 OPTION
D911 OPTION
D910 OPTION
D914 OPTION
+5VL1
+5VL1
+5VL1
+5VD
+5VL
+5VL
CH_GND
+5VL
+5VL2
+5VL
+5VD +5VL +5VD
+5VD
+5VL3
+5VL3
+5VL3
87654321
A
B
C
D
E
F
SCHEMATIC DIAGRAMS (1/8)
GND POWER -POWER +
SCHEMATIC DIAGRAMS
BN92
TO CN40

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