Manual - Pioneer KEH-1900 Service Manual

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- KEH-1950/X1M/ES
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L 13942296513
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Specifications
General
Power source .......... 14.4 V DC (10.8 – 15.1 V allowable)
Grounding system ........................................ Negative type
Max. current consumption ........................................ 8.5 A
Dimensions
(DIN) (chassis) ...... 178 (W) × 50 (H) × 150 (D) mm
(nose) ............ 188 (W) × 58 (H) × 20 (D) mm
(chassis) ...... 178 (W) × 50 (H) × 155 (D) mm
(D)
(nose) ............ 170 (W) × 48 (H) × 15 (D) mm
Weight ...................................................................... 1.2 kg
Amplifier
Continuous power output is 17 W per channel min. into 4
ohms, both channels driven 50 to 15,000 Hz with no more
than 5% THD.
Maximum power output ...................................... 40 W × 4
Load impedance .......................... 4 Ω (4 – 8 Ω allowable)
Preout maximum output
level/output impedance .......................... 2.2 V /1 kΩ
Tone controls
(Bass) ...................................... +8 – –16 dB (100 Hz)
(Treble) ............................................ ±12 dB (10 kHz)
Loudness contour ..........+10 dB (100 Hz), +7 dB (10 kHz)
Cassette player
Tape ........................ Compact cassette tape (C-30 – C-90)
Tape speed ...... 4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)
Fast forward/rewinding time ...... Approx. 90 sec. for C-60
Wow & flutter .......................................... 0.13% (WRMS)
Frequency response ...................... 40 – 14,000 Hz (±3 dB)
Stereo separation ...................................................... 45 dB
Signal-to-noise ratio .................... 52 dB (IEC-A network)
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FM tuner
Frequency range ...................................... 87.5 – 108 MHz
Usable sensitivity .................................................... 11 dBf
50 dB quieting sensitivity ........................................ 16 dBf
Signal-to-noise ratio ...................... 70 dB (IEC-A network)
Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)
Frequency response ...................... 30 – 15,000 Hz (±3 dB)
Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)
AM tuner
Frequency range ........................ 531 – 1,602 kHz (9 kHz)
Usable sensitivity .............................. 18 µV (S/N: 20 dB)
Selectivity .................................................. 50 dB (±9 kHz)
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(volume: –30 dB)
Note:
• Specifications and the design are subject to
possible modification without notice due to
improvements.
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KEH-1900,1950
2 9 9 4 2 8
(1.0 µV/75 Ω, mono, S/N: 30 dB)
(1.7 µV/75 Ω, mono)
530 – 1,640 kHz (10 kHz)
50 dB (±10 kHz)
1 5 0 5 8 2 9 9 4
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2 8 9 9
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