Marantz - 2285B - Receiver
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Equipment:
2285B
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Information
AUDIO SECTION:
POWER OUTPUT AT 1% DISTORTION
..........................................................................................................................................................................
160 W
RATED POWER OUTPUT, 1
kHz.........................................................................................................................................................................................
122 W
TOTAL HARMONIC DISTORTION AT RATED POWER OUTPUT, 1
kHz...............................................................................................................0.1%
I.M. DISTORTION AT RATED POWER OUTPUT
(I.H.F. METHOD, 300 Hz AND 10 kHz MIXED 4:1 AT RATED POWER
OUTPUT)
.....................................................................................0.1%
POWER BANDWIDTH (% RATED POWER OUTPUT)
.................................................................................................................................
8 Hz -30 kHz
LOAD IMPEDANCE
...............................................................................................................................................................................................................4
ohms
POWER OUTPUT AT 1% DISTORTION
..........................................................................................................................................................................
110 W
RATED POWER OUTPUT, 1
kHz............................................................................................................................................................................................94
W
TOTAL HARMONIC DISTORTION AT RATED POWER OUTPUT, 1
kHz...............................................................................................................0.05%
I.M. DISTORTION AT RATED POWER OUTPUT
(I.H.F. METHOD, 300 Hz AND 10 kHz MIXED 4:1 AT RATED POWER
OUTPUT)
.....................................................................................0.1%
POWER BANDWIDTH ('Δ RATED POWER
OUTPUT).................................................................................................................................
8 Hz - 30 kHz
LOAD IMPEDANCE
...............................................................................................................................................................................................................8
ohms
Damping Factor, Speaker Output
40
Hz..................................................................................................60
1 kHz
..................................................................................................60
12.5 kHz
...........................................................................................40
Frequency Response
Phono ±2 dB
.........................................................18
Hz-30 kHz
Aux ±1.5
dB.....................................................10 Hz
— 40 kHz
Main In ±1.5
dB...................................................... 8
Hz-45 kHz
Signal-to-Noise Ratio, 1 kHz
Phono...........................................................................................50
dB
Aux
...............................................................................................50
dB
Main In
........................................................................................55
dB
Input Sensitivity, 1 kHz (Rated Input Voltage)
Phono........................................................................................1.8
mV
Aux
........................................................................................
180 mV
Main In
..................................................................r...................1.5
V
Input Impedance, 1 kHz
Phono..................................................................................
47 kohms
Aux
.....................................................................................
20 kohms
Main In
...............................................................................
40 kohms
Phono Equivalent
Noise...............................................................1.8
μν
Phono Dynamic Range
..................................................................98
dB
Phono Input
Capacitance............................................................100
pF
Channel Balance
Phono 0------40
dB...............................................................2.5
dB
Aux 40 Hz-16
kHz......................................................2.0 dB
Main In
.....................................................................................
1.0 dB
Interchannel Crosstalk
Phono 1 kHz
............................................................................38
dB
250 Hz - 10
kHz.........................................................33
dB
Aux
1kHz............................................................................45
dB
250 Hz - 10
kHz.........................................................33
dB
Tape 1 kHz
............................................................................45
dB
250 Hz - 10
kHz.........................................................33
dB
Main In 1 kHz
............................................................................55
dB
250 Hz - 10
kHz.........................................................50
dB
Intersource Crosstalk (Worst Point)
1
kHz...........................................................................................45
dB
250 Hz - 10
kHz........................................................................33
dB
Output Voltage, 1 kHz
Tape
Out..................................................................................0.18
V
Pre-Out........................................................................................1.5
V
Output Impedance, 1 kHz
Tape
Out............................................................................
500 ohms
Pre
Out...............................................................................
200 ohms
Overload Margin, 1 kHz
Phono...........................................................................................40
dB
Aux
...............................................................................................50
dB
Power Consumption
Idling
...........................................................................................50
W
Rated Power, 1
kHz...............................................................
350 W
FM TUNER SECTION:
Frequency
Range.........................................................
87.5 — 108 MHz
Usable Sensitivity 40 kHz Deviation, 98 MHz
Mono,
S/N26dB.....................................................................1.3
μν
Stereo, S/N 46
dB.....................................................................42
μν
Alternate Channel Selectivity, 98 MHz ±300
kHz...................67 dB
Image Response Rejection, 98
MHz............................................90 dB
IF Rejection, 98
MHz.....................................................................80
dB
Spurious Response Rejection, 98 MHz
......................................90 dB
AM Suppression, 98
MHz...............................................................55
dB
Signal-to-Noise Ratio, 98 MHz
Unweighted: Mono
..................................................................65
dB
Stereo..................................................................62
dB
Weighted: Mono
..................................................................69
dB
Stereo..................................................................65
dB
Pilot Signal & Subcarrier Rejection
19
kHz...........................................................................................65
dB
38
kHz...........................................................................................70
dB
Total Harmonic Distortion, 98 MHz
Mono
...........................................................................................0.15%
Stereo...........................................................................................0.25%
Frequency Response
30 Hz-15 kHz
.........................................................+0.2,-1.0
dB
Separation
250 Hz -6.3
kHz......................................................................43
dB
6.3 - 12.5
kHz............................................................................38
dB
Channel Balance
............................................................................0.3
dB
Output Voltage, 1 kHz
............................................................
910 mV
Output Impedance, 1
kHz......................................................
150 ohms
Acceptable Load Impedance, 1
kHz................................... 47 kohms
Antenna Terminals
Balanced...............................................................................
300 ohrr
Unbalanced............................................................................75
ohrr
AM TUNER SECTION:
Frequency
Range.........................................................
515 — 1650 kh
Usable Sensitivity (26 dB S/N 30% Mod., 1
MHz)...................20 μ'’
Selectivity, 1 MHz +9 kHz
............................................................20 d
Image Rejection, 1
MHz..................................................................43
d
IF Rejection, 1
MHz.........................................................................23
dB
Spurious Response Rejection, 1
MHz.........................................85 dB
Signal-to-Noise Ratio, 1
MHz........................................................55 dB
Frequency Response, 1 MHz +3 dB......................40 Hz —
2.3 kHz
Total Harmonic Distortion, 1
MHz............................................... 0.4%
GENERAL:
Power
Requirements...................................................
220 V AC, 50 Hz
(E and N versions are featuring an external voltage selector
for use on 110/120/240 V. Other versions can be converted by
a qualified technician to operate on 110/120/240 V.' Power
Consumption at Rated Output, Both Channels
Operating............................................................................
340 W ± 20 V.
Idling Power
.........................................................................50W+101''
Semiconductor Complement
Integrated
Circuits............................................................................
Transistors
........................................................................................<-
Diodes..................................................................................................63
Field Effect
Transistors..................................................................
2
Dimensions
Panel
Width.........................................................17-5/16"
(440 mm)
Panel Height
.........................................................5-3/8"
(137 mm)
Depth..................................................................
14-1/2" (362 mm)
Weight
Unit
alone...............................................................37.4
lbs (17.0 kg)
Packed for
shipment............................................42.9 lbs
(19.5 kg)
1 Manual
Service manual
Manual type:
Service manual
Pages:
40
Size:
3.0 MB
Language:
english
Revision:
Manual-ID:
221385501-0
Date:
Quality:
Scanned document, all readable.
Upload date:
March 8, 2015
MD5:
8f3f038e-cf99-ca16-7d17-082fd21fca6e
Downloads:
639