Attrezzatura informazioni:

Marantz 2238 Ricevitore
Produttore:
Marantz
Modello: 2238
Data: 1977
Categoria: Audio, Video, TV, Multimedia
Gruppo: Ricevitore
Descrizione: STEREOPHONIC RECEIVER
Informazioni:
                                    12. TECHNICAL SPECIFICATIONS
AMPLIFIER SECTION:
Rated Power Output, Minimum Continuous Average Power per
Channel, both Channels
Driven............................................38 W
Power
Band..................................................................................................................................................................20
Hz to 20 kHz
Total Harmonic
Distortion.............................................................................................................................................................0.1%
Load
Impedance..........................................................................................................................................................................8
ohms
Maximum Power Output, DIN 45500
(Less than 1% THD, 10 min. test at 1
kHz)........................................................................................................................42
W
Power Bandwidth at 1% THD, DIN
45500................................................................................................................
10 Hz to 70 kHz
I.M. Distortion
(I.H.F. method, 60 Hz and 7 kHz mixed 4:1 at rated power
output)
.............................................................................0.1%
Damping
Factor..................................................................................................................................................................................
45
Sensitivity (at MAIN
IN).............................................................................................................................................................
1.5 V
Impedance (at MAIN
IN)........................................................................................................................................................30
kohms
Frequency Response for Power Amp Only
(at 1 W output, 20 Hz to 20 kHz)
...............................................................................................................................±0.25
dB
PREAMPLIFIER SECTION:
Phono
Input Overload at 1 kHz
......................................................................................................................................................100
mV
Equivalent Input Noise
...........................................................................................................................................................1.5/iV
Dynamic Ranae
(Dynamic Range is the ratio of input overload to equivalent
input
noise.)...................................................................96
dB
Input
Sensitivity.....................................................................................................................................................................1.8
mV
Input Impedance
................................................................................................................................................................47
kohms
Frequency Response, RIAA 20 Hz to 20 kHz
...................................................................................................................±1.0
dB
Signal-to-Noise Ratio
(at rated output and 7.75 mV input)
...............................................................................................................................75
dB
Signal-to-Noise Ratio, unweighted (DIN
45500)...................................................................................................................
47 dB
High Level (Aux and Tape)
Input
Sensitivity.....................................................................................................................................................................180
mV
Input Impedance
................................................................................................................................................................85
kohms
Frequency Response
(includes power amp)
........................................................................................................................15
Hz to 60 kHz, ±1.5 dB
Signal-to-Noise Ratio
(ref. to rated output and 775 mV
input)..........................................................................................................................87
dB
Output Levels
Tape Out (ref. 7.75 mV at Phono inputs)
...........................................................................................................................
775 mV
Pre-Out (ref. 180 mV at Aux inputs)
....................................................................................................................................
1.5 V
(ref. 500 mV at Aux inputs, main amp
disconnected)............................................................................................
4.2 V
Output Impedance
Tape Out
.............................................................................................................................................................................600
ohms
Pre-Out..................................................................................................................................................................................900
ohms
FM TUNER SECTION:
Sensitivity
IHF
Usable...........................................................................................................................................................10.8dBf
(1.9/^V)
IHF 50 dB Quieting
(mono)...............................................................................................................................
17.3 dBf (4.0 μν)
(Stereo).................................................................................................................................37.2
dBf (40 μν)
DIN Sensitivity (Mono, 26 dB S/N, 300 ohm input)
............................................................................................................1.6
μν
(Stereo, 46 dB S/N, 300 ohm
input)............................................................................................................80
μν
Quieting Slope (Mono)
RF Input for 30 dB Quieting
...............................................................................................................................9.8
dBf (1.7 μν)
Quieting at:
20dBf (
5.5μν)................................................................................................................................................................51
dB
25 dBf ( 10
μν)................................................................................................................................................................58
dB
40 dBf ( 55
μν)................................................................................................................................................................65
dB
65 dBf (1000
μν)................................................................................................................................................................72
dB
Quieting Slope (Stereo)
Quieting at:
30 dBf ( 17
μν)................................................................................................................................................................40
dB
40 dBf ( 55
μν)................................................................................................................................................................50
dB
50 dBf ( 173
μν)................................................................................................................................................................56
dB
65 dBf (1000
μν)....................................................................................................................................
62 dB
Distortion (Mono)
at 50 dB Quieting, 1000 Hz
......................................................................................................................................................0.6%
at 65 dBf (1000 μν), 1000 Hz
..............................................................................................................................................0.15%
Distortion (Stereo)
at 50 dB Quieting, 1000
Hz......................................................................................................................................................0.6%
at 65 dBf (1000 μν), 1000 Hz
.................................................................................................................................................0.3%
Hum and Noise
at 65 dBf (1000 μν)
Mono.....................................................................................................................................................................................70
dB
Stereo
..................................................................................................................................................................................62
dB
Frequency Response 30 Hz to 15 kHz
Mono........................................................................................................................................................................+0.2,
—2.0 dB
Stereo
................................................................................................................................................................................±2.0
dB
Capture Ratio
at 45 dBf (100
μν)...................................................................................................................................................................1.5dB
at 65 dBf (1000
μν)................................................................................................................................................................1.0
dB
Alternate Channel
Selectivity......................................................................................................................................................70
dB
Spurious Response Rejection
......................................................................................................................................................90
dB
Image Response
Rejection...........................................................................................................................................................60
dB
I.F. Rejection
(Balanced).............................................................................................................................................................90dB
A.M.
Suppression...........................................................................................................................................................................50
dB
Stereo Separation
100
Hz.......................................................................................................................................................................................42
dB
1000
Hz.....................................................................................................................................................................................45
dB
10
kHz.......................................................................................................................................................................................32
dB
Subcarrier
Rejection.....................................................................................................................................................................60
dB
AM TUNER SECTION:
IHF Usable
Sensitivity...................................................................................................................................................................20
μν
Distortion (THD), 30%
Modulation..............................................................................................................................................0.6%
Signal-to-Noise
Ratio.....................................................................................................................................................................49
dB
Frequency Response (±3 dB)
....................................................................................................................................40
Hz to 2.3 kHz
Alternate Channel
Selectivity......................................................................................................................................................46
dB
Image
Rejection.............................................................................................................................................................................45
dB
Spurious Response Rejection
......................................................................................................................................................50
dB
l.F. Rejection
................................................................................................................................................................................40dB
GENERAL:
Power
Requirements...........................................................................................
120 V AC, 60 Hz (U.S.A. and Canadian Versions)
220 V AC, 50 Hz (European Version) (This unit can be
converted by a qualified technician to operate on
110/120/240 V AC, 50/60 Hz.)
Power Consumption at rated output, both channels
operating.................................................................................................170
W
Idling Power (Volume Control at
zero).......................................................................................................................................
30 W
Semiconductor Complement:
Integrated Circuits .
........................................................................................................................................................................
3
Transistors
.....................................................................................................................................................................................
45
Diodes............................................................................................................................................................................................
29
Field Effect
Transistors...................................................................................................................................................................
1
Dimensions:
Panel
Width..............................................................................................................................................
440 mm (17-5/16 inches)
Panel Height
...............................................................................................................................................137
mm ( 5-3/8 inches)
Depth............................................................................................................................................................
365 mm (14-3/8 inches)
Weight:
Unit
alone.................................................................................................................................................................
12 kg (26.4 lbs)
Packed for
shipment...............................................................................................................................................
15kg( 33 lbs)

Questi manuali sono disponibili per l'attrezzatura di cui sopra:

Marantz -- 2238 -- Manuale di servizio
Nome file: Marantz-6602-Manual-Page-1-Picture
Tipo manuale: Manuale di servizio
Pagine: 47
Dimensioni: 7.48 Mbytes (7847157 Bytes)
Lingua: Inglese
Revisione:
Manual-ID/Number: 220685501-0
Data: 1977
Qualità: Documento scansionato, tutto leggibile.
Data di caricamento:
MD5: a0137a3b80b4075308c03e4ba4eb2741
Download: 168 dal 08 marzo 2015
Informazioni:

1. SERVICE
NOTES........................................................................................................................................................................
1
2. TEST EQUIPMENT REQUIRED FOR
SERVICING..............................................................................................................
2
3. AM ALIGNMENT
PROCEDURE...............................................................................................................................................
2
3.1 AM IF
Alignment..............................................................................................................................................................
2
3.2 AM Frequency Range and Tracking
Alignment.............................................................................................................
2
4. FM ALIGNMENT
PROCEDURE...............................................................................................................................................
2
4.1 FM Frequency Range and Tracking
Alignment.................................................................................................................2
4.2 Stereo Separation
Alignment...............................................................................................................................................3
4.3 Muting Threshold
Adjustment............................................................................................................................................3
4.4 FM Dolby Level
Adjustment...............................................................................................................................................3
5. POWER AMPLIFIER ADJUSTMENT
....................................................................................................................................
4
6. POWER SUPPLY
ADJUSTMENT............................................................................................................................................
4
7. VOLTAGE CONVERSION FOR EUROPEAN MODEL
.......................................................................................................
4
8.
DIAGRAMS..................................................................................................................................................................................
5
8.1 Block Diagram
...................................................................................................................................................................
5
8.2 Inter Connection Diagram · U.S.A. &
CANADA............................................................................................................
7
8.3 Inter Connection Diagram -
EUROPE............................................................................................................................
9
8.4 Schematic Diagram - U.S.A. & CANADA
......................................................................................................................11
8.5 Schematic Diagram ·
EUROPE.........................................................................................................................................13
8.6 Tuner Board Schematic Diagram and Component Locations
.......................................................................................15
8.7 FM Front End Board Schematic Diagram and Component
Locations
........................................................................19
8.8 Phono Equalizer Amp. Board Schematic Diagram and
Component
Locations...........................................................20
8.9 Main Amp. Board Schematic Diagram and Component
Locations................................................................................22
8.10 Power Supply Board Schematic Diagram and Component
Locations..........................................................................24
8.11 Pre., Tone Amp. Board Schematic Diagram and Component
Locations.....................................................................25
8.12 Mono, Hi Filter, Tape 1 Mon., FM 25 ßS Switches Board
Schematic Diagram and Component Locations.............26
8.13 Mono, Hi Filter, Low Filter, Tape 1 Mon., Switches
Board Schematic Diagram and Component
Locations -
EUROPE.........................................................................................................................................................26
8.14 Speaker Switch Board Schematic Diagram and Component
Locations........................................................................27
8.15 Dial Lamp Board Schematic Diagram and Component
Locations................................................................................27
9. MAJOR COMPONENT
LOCATIONS.......................................................................................................................................28
9.1 Cabinet-Front
View...........................................................................................................................................................28
9.2 Chassis-Top View
..............................................................................................................................................................28
9.3 Cabinet-Rear View
...........................................................................................................................................................29
9.4 Chassis-Bottom
View.........................................................................................................................................................29
9.5 Cabinet-Front View - EUROPE
.......................................................................................................................................30
9.6 Chassis-Top View -
EUROPE............................................................................................................................................30
9.7 Cabinet-Rear View -
EUROPE.........................................................................................................................................31
10. EXPLODED
VIEW......................................................................................................................................................................32
10.1 Packing Material Exploded
View....................................................................................................................................32
10.2 Mechanical Exploded
View...............................................................................................................................................33
11. PARTS
LIST................................................................................................................................................................................35
12. TECHNICAL SPECIFICATIONS
44

This service manual was prepared for use by Authorized
Warranty Stations and contains service information for
Marantz Model 2238 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 operations in 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-6602-Manual-Page-1-Picture
Avviare il Download gratuito


Marantz -- 2238 -- Scheda tecnica
Nome file: Marantz-6636-Manual-Page-1-Picture
Tipo manuale: Scheda tecnica
Pagine: 6
Dimensioni: 36.83 Mbytes (38616932 Bytes)
Lingua: Inglese
Revisione:
Manual-ID/Number:
Data: 1977
Qualità: Documento scansionato, tutto leggibile.
Data di caricamento:
MD5: 43d5e17a637a7de96d6e3e72af0615be
Download: 510 dal 30 aprile 2015
Informazioni:
Marantz-6636-Manual-Page-1-Picture
Avviare il Download gratuito


Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
What is the sum of 1 + 2 + 3?
Powered by Commentics