Marantz -- 2270 -- Service Manual
File name: Marantz-823-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 32
Size: 20.99 Mbytes (22007182 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: December 1976
Quality: Scanned document, all readable.
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MD5: 0e357f384a2b3218b7a911c2065bcad2
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Service Manual including Service Bulletins.
Marantz-823-Manual-Page-1-Picture
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Equipment information

Marantz 2270 Receiver
Manufacturer
Marantz
Model: 2270
Date: 1976
Category: Audio, Video, TV, Multimedia
Group: Receiver
Description: Stereophonic Receiver
Information:
                                    AUDIO CIRCUITS:
Rated continuous (RMS) power output per channel,
both channels operating simultaneously, 20Hz to
20,000Hz........................................70 Watts at
4 and 8 ohms
40 Watts at 16 ohms
Comparable Total Music Power (I HF)
.................................................................................210Wattsat
8 ohms
High-level hum and noise (ref. 40W at 8
ohms)......................................................................
—80 dB
Phono hum and noise
..........................................................................................................1.5
aV equivalent input
Dynamic range (phono input to tape recording output)
.............................................................................
96dB
I. M. Distortion (SMPTE), at rated
power............................................................................................................0.3%
Distortion decreases as output is lowered
Total Harmonic Distortion, at rated Power
...................................................................................0.3%
Maximum
Distortion decreases as output is lowered
Power Bandwidth (IHF) for 0.3%
THD..........................................................................................7Hz
to 50,000Hz
Damping Factor (ref. 8 ohms)
...........................................................................................................Greater
than 45
Frequency Response
Through
phono..........................................................................................................................................
.±1 dB
Input Sensitivity (for 40W at 8 ohms)
High-level................................................................................................................................
.180 mV
Phono (1,000 Hz)
......................................................................................................................................1.8
mV
Input Impedance
High-level.........................................................................................................................................100,000
ohms
Phono
..............................................................................................................................................
47,000 ohms
Channel Separation 20 Hz to 20,000 Hz
.........................................................................................35
dB Minimum
FM SECTIONS:
IHF Usable
Sensitivity......................................................................................................................................2.3
ß V
Selectivity...................................................................................................................................................
80 dB
Noise
Quieting......................................................................................................................................—55
dB at 5 AV
-60 dB at 10 ßJ -65 dB at 50μ V
Total Harmonic Distortion, 400 Hz, 100%
Mod........................................................(Mono)
0.2% (Stereo) 0.4%
Frequency Response (ref. 75M sec. de-emphasis)
...........................................................±
1 dB 50 Hz to 15 KHz
Stereo Separation
.................................................................................................................................
1,000 Hz 40 dB
Sub-Carrier (38 KHz) Suppression
...................................................................................................................60dB
GENERAL:
Power
Requirements......................................................................................................................................120VAC
50 to 60 Hz
At rated output, both channels
operating..........................................................................................500
Watts
Idling Power (Volume Control at
zero)...............................................................................................
. 38Watts
Dimensions
Panel Width
.................................................................................................................................172I/64
Inches
Panel
Height.................................................................................................................................
5 25/64 Inches
Depth
.................................................................................................................................................
14 Inches
Weight
Unit
alone......................................................................................................................................................38.5lbs
Packed for
shipment....................................................................................................................................49.5lbs