Stereo Receiver Marantz 2238B

Receiver marantz 2238B





SERVICE MANUAL OF MARANTZ 2238B

Free Download Service Manual


TRANSISTORS EQUIVALENTS OF MARANTZ 2238B


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Transistors Equivalents Other Transistors Equivalents Other
2SC1681 BC184L-2N5210 NTE199 2SA841 BC214L-2N3496 NTE234
2SC1342 BF185-2N4923 NTE229 2SC1318 BCW36-2N4410 NTE128
3SK45B BF981 NTE222 2SA750 BC640-2N5416 NTE234
2SA794 BD140-2N5415S NTE374 2SC945 BC182L-2N3710 NTE123AP
2SC733 BC182L-2N3710 NTE199 2SD330 BD533-2N6099 NTE152
2SC535 BFY90-2N2857 NTE107 HA1197 NTE1214
2SC1327 BC182L-2N5210 NTE199 2SC1344E BC109-2N5210 NTE199
2SC1885 NTE399 2SC1567 BF457-2N5100 NTE373
2SD388 BDX51-2N4348 NTE87 2SB541 BDX96-2N6030 NTE281


Electrolytic Capacitors (73)



Capacitors Tension Quantity Capacitors Tension Quantity
10.000 µf 50 volts 2 1000 µf 16 volts 1
470 µf 63 volts 1 220 µf 50 volts 1
220 µf 35 volts 1 220 µf 10 volts 1
100 µf 63 volts 1 100 µf 50 volts 2
100 µf 16 volts 6 47 µf 50 volts 2
47 µf 16 volts 5 47 µf 10 volts 1
33 µf 50 volts 1 22 µf 16 volts 2
22 µf 6.3 volts 2 10 µf 50 volts 1
10 µf 35 volts 3 10 µf 16 volts 6
4.7 µf 35 volts 3 4.7 µf 25 volts 5
3.3 µf 50 volts 2 3.3 µf 25volts 3
2.2 µf 50 volts 2 2.2 µf 35 volts 2
2.2 µf 25 volts 2 1 µf 50 volts 9
0.47 µf 50 volts 3 0.22 µf 50 volts 3



In 1978, a new generation of Marantz stereo receivers was born with more features, more performance than ever. The 2238B model that was here, was built to the same standards of excellence. So no no matter which one you buy, you get the same technical expertise, the one that made Marantz the name the most respected in high fidelity matters.


TECHNICAL SPECIFICATIONS



Tuner:

Tuning range FM: 88 to 108 Mhz
Sensitivity IHF: 1.9 µv
Selectivity: > 70 dB
Stereo Separation: > 45 dB - 1Khz

Tuning range AM: 535 to 1605 Khz

Amplifier

Power output:

Continuous Power (RMS) 38 watts stereo at 8 ohms
Continuous Power (RMS) 48 watts stereo at 4 ohms
Power Band: 20Hz to 20Khz
Output Impedance: 8 ohms

Distortion:

Frequency response: 10Hz to 60kHz +/- 1.25 dB
Total Harmonic at rated output: 0,08% at 8 ohms
Total Harmonic at rated output: 0,1% at 4 ohms
Damping Factor: 45 - 8 ohms

Input Sensitivity and Impedance:

Phono: 1,8 mV
Tuner: 180 mV
Aux: 180 mV
Tape In: 180 mV

Signal to Noise Ratio:

Phono: 76 dB
Tuner, Tape In: 90 dB
Aux: 90 dB


Dimensions: 440 x 137 x 362mm
Weight: 12,5 Kg

Years: 1978




HIFI-RECEIVER MARANTZ 2238B

HIFI-RECEIVER MARANTZ 2238B





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