Geräte Informationen:

Marantz 2285B Receiver
Hersteller:
Marantz
Modell: 2285B
Datum:
Kategorie: Audio, Video, TV, Multimedia
Gruppe: Receiver
Beschreibung: STEREOPHONIC RECEIVER
Informationen:
                                    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)

Folgende Anleitungen sind für obiges Gerät verfügbar:

Marantz -- 2285B -- Serviceanleitung
Dateiname: Marantz-6615-Manual-Page-1-Picture
Dokumenttyp: Serviceanleitung
Seitenanzahl: 40
Dateigröße: 3.03 Mbytes (3179931 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 221385501-0
Datum:
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: 8f3f038ecf99ca167d17082fd21fca6e
ed2kID: d8c073fed748baaffdfe9bf221c2e1e9
Downloads: 65 seit 08 März 2015
Informationen:
1. P.W.
BOARDS...................................................................................................
......................................................................................................................
1
2. TEST EQUIPMENT REQUIRED FOR
SERVICING........................................................................................................................................................
1
3. AM ALIGNMENT
PROCEDURES........................................................................................................................................................................................
2
3.1 AM IF
Alignment..............................................................................................................................................................................................................
2
3.2 AM Frequency Range and Tracking
Alignment........................................................................................................................................................
2
3.3 AM Signal Strength Meter
Alignment...........................................................................................................................................................................
2
4. FM ALIGNMENT PROCEDURES
........................................................................................................................................................................................
2
4.1 FM Frequency Range and Tracking
Alignment...........................................................................................................................................................2
4.2 Stereo Separation
Alignment..............................................................................................................................................................................................2
4.3 Muting Circuit Alignment
.................................................................................................................................................................................................2
4.4 Dolby FM Tape Output
Setting.............................................................
......................................................................................................................2
5. AUDIO
ADJUSTMENT..............................................................................................................................................................................................................
2
6. VOLTAGE CONVERSION FOR EUROPEAN
MODEL..................................................................................................................................................
3
7. DIAGRAMS
.................................................................................................................................................................................................................................
5
7.1 Block Diagram
.....................................................................................................................................................................................................................
5
7.2 Connection Diagram - U.S.A. & Canada
...................................................................................................................................................................
7
7.3 Connection Diagram -
Europe........................................................................................................................................................................................
9
8. SCHEMATIC DIAGRAMS AND COMPONENT
LOCATIONS.....................................................................................................................................11
8.1 FM Front End Circuit Board
PI00..............................................................................................................................................................................11
8.2 AM Tuner, FM IF & MPX Stereo Decorder Circuit Board P200
............................................................................................................................
12
8.3 Phono Amp Circuit Board P400
.....................................................................................................................................................................................
13
8.4 Main Amp Circuit Board P700
.......................................................................................................................................................................................
14
8.5 Power Supply Circuit Board P800
..................................................................................................................................................................................
15
8.6 Pre and Tone Amp Circuit Board
PEQ1........................................................................................................................................................................16
8.7 Monitor and Filter Switches Circuit Board PS01
.....................................................................................................................................................17
8.8 Dolby Socket Circuit Board
PK01..................................................................................................................................................................................18
8.9 Function Lamp Circuit Board PY01
...........................................................................................................................................................................18
8.10 Dial Lamp Circuit Board
PZ01........................................................................................................................................................................................18
8.11 Antenna Muting Circuit Board PC01
...........................................................................................................................................................................18
8.12 Speaker Switches Circuit Board PN01
.......................................................................................................................................................................19
9. MAJOR COMPONENT LOCATIONS................
...............................................................................................................................................................20
9.1 Cabinet-Front
View........................................................................................................................................................................................................20
9.2 Chassis - Top View
...........................................................................................................................................................................................................20
9.3 Cabinet - Rear View . . .
..................................................................................................................................................................................................21
9.4 Chassis - Bottom
View....................................................................................................................................................................................................21
10. EXPLODED
VIEWS.....................................................................................................................................................................................................................22
10.1 Rear Panel Exploded View - U.S.A. &
Canada...........................................................................................................................................................22
10.2 Rear Panel Exploded View - Europe
...........................................................................................................................................................................22
10.3 Front Panel Exploded
View...........................................................................................................................................................................................23
10.4 Chassis Exploded
View....................................................................................................................................................................................................25
10.5 Packing Material Exploded View
..................................................................................................................................................................................27
11. PARTS
LIST.................................................................................................................................................................................................................................28
12. TECHNICAL SPECIFICATIONS
..........................................................................................................................................................................................41
13. SCHEMATIC
DIAGRAMS........................................................................................................................................................................................................43

This service manual was prepared for use by Authorized
Warranty Stations and contains service information for
Marantz Model 2285B Stereophonic Receiver.
Servicing information and voltage data included in this
manual are intended for use by the knowledgeable and
experienced technician only. All instructions should be read
carefully. No attempt should be made to proceed without a
good understanding of the operation of the receiver.
The parts list furnishes information by which replacement
parts may be ordered from the Marantz Company. A simple
description is included for parts which can usually be
obtained through local suppliers.
Marantz-6615-Manual-Page-1-Picture
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