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Marantz - 2238B - Receiver
Manufacturer:
Equipment:
2238B
Date:
Category:
Group:
Sub Group:

Information

FOR U.S.A. MODEL ONLY AMPLIFIER SECTION: RATED POWER OUTPUT, MINIMUM CONTINUOUS AVERAGE POWER PER CHANNEL, BOTH CHANNELS DRIVEN....................... 38W POWER BAND.................................................................................................................................................................................. 20 Hz to 20 kHz TOTAL HARMONIC DISTORTION................................................... ..............................................................................................................0.08% LOAD IMPEDANCE........................................................................................................................................ .....................................8 OHMS RATED POWER OUTPUT, MINIMUM CONTINUOUS AVERAGE POWER PER CHANNEL, BOTH CHANNELS DRIVEN....................... 48W POWER BAND................................................................................................................................................................................... 20 Hz to 20 kHz TOTAL HARMONIC DISTORTION....................................................................................................................................................................0.1% LOAD IMPEDANCE........................................................................................................................................................................................4 OHMS I.M. Distortion (I.H.F. method, 60 Hz and 7 kHz mixed 4:1 at rated power output) at 8 ohm load impedance...................................................0.08% at 4 ohm load impedance...................................................0.1% Damping Factor (at 20 Hz)...................................................................45 Sensitivity (at MAIN IN).................................................................. 1.5V Impedance (at MAIN IN)...................................................... 33k ohms Frequency Response for Power Amp Only (at 1 Watt output, 20 Hz to 20 kHz)................................+0.25 dB PREAMPLIFIER SECTION: Phono Input Overload at 1 kHz...................................................... 100 mV Equivalent Input Noise ............................................................1.5μν Dynamic Range (Dynamic Range is the ratio of input overload to equivalent input noise).........................................................96 dB Input Sensitivity......................................................................1.8 mV Input Impedance...............................................................47k ohms Input Capacitance......................................................................100 pF Frequency Response, RIAA 20 Hz to 20 kHz...................±1.0 dB Signal-to-Noise Ratio (at rated output and 7.75 mV input)................................76 dB High Level (Aux and Tape) Input Sensitivity............................................................ 180 mV Input Impedance . . ................................................ 20k ohms Frequency Response (includes power amp).............10 Hz to 60 kHz ± 1.25 dB Signal-to-Noise Ratio (ref. to rated output and 775 mV input)...................90 dB Output Levels Tape Out (ref. 7.75 mV at Phono inputs)................ 775 mV Pre-Out (ref. 180 mV at Aux inputs)............................. 1.5V (ref. 500 mV at Aux inputs, main amp disconnected)......................................................4.2V Output Impedance Tape Out......................................................................... 600 ohms Pre-Out............................................................................ 900 ohms FM TUNER SECTION: Sensitivity IHF Usable...............................................................10.8 dBf (1.9μν) IHF 50 dB Quieting (Mono)................................16.1 dBf (3.2μν) (Stereo).............................37.3 dBf ( 40μν) Quieting Slope (Mono) RF Input for 30 dB Quieting................................9.3 dBf (1.6μν) Quieting at: 20 dBf ( 5.5μν)......................................................................55 dB 25 dBf ( 10μν)......................................................................60 dB 40 dBf ( 55μν)......................................................................70 dB 65 dBf (1000μν)......................................................................75 dB Quieting Slope (Stereo) Quieting at: 30 dBf ( 17μν)................................ ................................42 dB 40 dBf ( 55μν)......................................................................53 dB 50 dBf ( 173μν)......................................................................58 dB 65 dBf (1000μν)......................................................................65 dB Distortion (Mono) at 65 dBf (1000μν) 100 Hz.........................................................................................0.25% 1000 Hz.........................................................................................0.15% 6000 Hz.........................................................................................0.35%. Distortion (Stereo) at 65 dBf (1000μν) — 100 Hz.........................................................................................0.35% 1000 Hz.........................................................................................0.3% 6000 Hz.........................................................................................0.55% Distortion (Mono and Stereo) at 50 dB Quieting, 1000 Hz......................................................0.6% Hum and Noise at 65 dBf (1000μν) Mono.........................................................................................73 dB Frequency Response 30 Hz to 15 kHz Mono...................................................................+0.2 dB,-1.5 dB Stereo...................................................................................±1.5 dB Capture Ratio at 65 dBf (1000μν)............................................. 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.........................................................................................40 dB 1000 Hz.........................................................................................45 dB 10 kHz......................................................................................40 dB Subcarrier Rejection.........................................................................60 dB AM TUNER SECTION: IHF Usable Sensitivity................................................................... 15μν Distortion (THD), 30% Modulation................................................0.5% Signal-to-Noise Ratio.........................................................................50 dB Alternate Channel Selectivity ..........................................................46 dB Image Rejection...................................................................................45 dB Spurious Response Rejection.........................................................60 dB I.F. Rejection......................................................................................40 dB GENERAL: Power Requirements................................................... 120V AC, 60 Hz Power Consumption at rated output, both channels operating...............................................................................................170W Idling Power (Volume Control at zero).............................................27W Dimensions: Panel Width............................................. 440 mm (17-5/16 inches) Panel Height...................................................137 mm (5-3/8 inches) Depth............................................................. 362 mm (14-1/2 inches) Weight: Unit alone............................................................. 12.5 kg (27.5 lbs.) Packed for Shipment.............................................15.0 kg (33.0 lbs) 40

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1 Manual

Service manual
Manual type:
Service manual
Pages:
32
Size:
4.6 MB
Language:
english
Revision:
Manual-ID:
2207855010
Date:
Quality:
Scanned document, all readable.
Upload date:
March 8, 2015
MD5:
8783ae86-5bd5-750c-bd07-db8653d5e812
Downloads:
552