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Audio Section - Marantz 4230 Service Manual

Stereo 2 + quadradial 4 receiver
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38
FM SECTION
Tuning Frequency Range........
00sec reece eee
nner e renee neta t eee
nen ees 88 — 108MHz
IHFM Usable Sensitivity .........
cc cece eee eee
teen tenet n eee nee teens 3.5uV at 30dB
50uV at 70dB
IHF Selectivity...
0... cece cece cence teen eee een eee
e ete
n eee
e ence eee enrnees
48dB
Capture Ratio
......cececce cere sce cbt etre ene teeaen tanta e steno
teen ere e esa cenernenes 3.0dB
Image Rejection Ratio at JO6MHZ......
6... eee c eee eet
teen
nent
etn
50dB
Total Harmonic Distortion (MONO) ....... eee e cee
eee
tenet
eee eens
0.6%
Total Harmonic Distortion (Stereo) ..... 6... cece cece
teen
tener eee eee
0.8%
Frequency Response (ref. 75usec. de-emphasis).........0--eeeeeeee +2dB, from 30Hz
to 15KHz
Stereo Separation at IKHZ
....... cece eee
eee eee nent
eens
40dB, 26dB at 10KHz
Quadradial Output (400Hz 75KHz dev.) .... eee eee reece eee
teen
ees 300mV, 15Kohms
AM SECTION
Tuning Frequency Range.......-..-ece
eee reenter eee etn ete e eee nes 540 to 1605KHz
Usable Sensitivity...
00... ccc c cee cece erence ete n eter enn e ener eee eee eaeeeranceertenee 25uV
Selectivity ....... 0 cece cece
cee
eee ener
e eee
e nee
n eee n ere e ete
rees
1000KHz, 25dB
Image Rejection Ratio at 1400KHZ.....
6
eee
cere
tenet
eter
teens
45dB
Bandwidth (-6 dB)
....... 2c cece eee
eee
eee ete
e teen tenet neta
7KHz
AUDIO SECTION
Input Sensitivity and Impedance — Phono
.....-.-+-eeeee
sees reece tree eens 2.2mV, 47Kohms
=< lol lOVele
dived tad onda dtane dale tetrad genes cites 150mV
Phono Frequency Response.......
2.02 ce eee eee eter
eens
30 to 15KHz, +1dB (RIAA)
Intermodulation Distortion below rated power output (SMPTE)
............
Less than 0.9%
Nominal 0.5%
Damping Factor
..........
cece ence eee
ence teeter nnn teen eee eeaees 2 channel: 20 at 20Hz
4 channel: 40 at 20Hz
Rated Continuous (RMS) Output ........ 00 cece cence
eee
eee
eee GOW at 8ohms (30W x 2)
all channels operating simultaneously at 40Hz
48W at Sohms (12W x 4)
to 20KHz for nominal harmonic distortion
GENERAL
Power Requirements ....... 0. cece cece eee e een
e eee e teen eee
e nen earn tener a tenennens
120V
Power Consumption—
at rated power OUTPUT .. 1...
ee eee ee eee
tenets
230 Watts
— idling (no signal) ....... 6. cc eee e cece eect
eee tenets
33 Watts
Dimensions
— Panel Width .......... 00 cee cece
ete
ere
teen
tee e eens
17 21/64 Inches
— Panel Height ........--eececee
ec ee nce teen tence eteneeneennane 5 25/64 Inches
ODO DTH tna accissdeteule ts ii cdg
Semel Tiree saris tans ser aie 14 3/8 Inches
— Width (Packed for Shipment)...........c
cece eee e ence teen eneee 22 1/4 Inches
— Height (Packed for Shipment) .........- 06 sees
eer e eee
a erences
10 1/2 Inches
— Depth (Packed for Shipment) .....-..-.-
ec eee e eee eee eee eee 19 1/2 Inches
Weight — Unit alone .......... ce cece cece eee
ener nent een e neta seen een ennnas 31.3 Ibs
— Packed for Shipment ....-.- 0.60
e cece eect
ee
eee ee tte nee net enees
40.1 Ibs

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