Pioneer SX-1280 Ampli-tuner
(1978-1979)
Service ManualSPECIFICATIONS TECHNIQUES
Tuner:
Tuning range FM: 88 to 108 Mhz
Sensitivity IHF: 1.7 µV
Selectivity: > 80 dB
Stereo Separation: > 50 dB - 1Khz
Tuning range AM: 535 to 1605 Khz
Amplifier:
Power output: (RMS) 2 X 185w/8 ohms
Frequency response: 5Hz/80kHz
Output Impedance: 4 or 8 ohms
Damping factor: 30
Total Harmonic output: 0.03%/8 ohms
Input Sensitivity Phono: 2.5 mV
Input Sensitivity Tuner: 150 mV
Input Sensitivity Aux: 150 mV
Input Sensitivity Tape In: 150 mV
Signal to Noise Ratio Phono: 80 dB
Signal to Noise Ratio Tuner: 95 dB
Signal to Noise Ratio Aux: 95 dB
Signal to Noise Ratio Tape In: 95 dB
Output Line: 150 mV
Pre Out: 1V
Dimensions: 556 x 186 x 461 mm
Weight: 28.7 Kg
| Transistors | Equiv | Other |
| 2SC869 | BSX21-2N1990R | NTE194 |
| 2SC1400 | BSS43-BSX47 | 2N4271 |
| 2SC1438 | BSX21 | 2N6218 |
| 2SC945A | BC182L-2N3710 | NTE123AP |
| 3SK45 | NTE454 | NTE222 |
| 2SC1906 | BF377-2N3893 | NTE107 |
| 2SA733 | BC212L-2N4061 | NTE290 |
| 2SC1775 | BC639-2N6218 | NTE123AP-BC449 |
| 2SA906 | BC214-2N3494 | NTE234 |
| 2SC1313 | BC347A-2N3904 | NTE199 |
| 2SA726 | BC352B-2N3906 | NTE234 |
| 2SC1919 | BC184-2N4137 | NTE107-2N3694 |
| 2SC1312 | BC347A-2N3904 | NTE199 |
| 2SC1914 | 2N5656 | KT611AM |
| 2SA904 | 2N2596 | KT632B |
| 2SA899A | BFT19-2N3930 | NTE288 |
| 2SA912 | 2SA1123-2SA712 | NTE288 |
| 2SC1885 | 2SC589-2SC3800 | NTE399 |
| 2SC1904 | BF469-2N5656 | NTE37-2SC1720 |
| 2SB628A | 2N6211-KT855B | NTE398 |
| 2SD608A | BD239D-BUX84 | KT841A |
| 2SC1344 | BC109-2N5210 | NTE199 |
| 2SK55 | IRF541 | NTE2385 |
| 2SA979 | 2SA798 | |
| 2SB682C | BD244C-2N6247 | NTE292 |
| 2SB706 | 2N6107 | |
| 2SD746 | BC327-2N5865 | KTA1270 |
| 2SC2291 | 2SC2259 | |
| 2SK117 | NTE2378 | NTE2393 |
| 2SD712 | BD243C-KT819G | NTE331 |
| Integ Circ | Equiv | Other |
| HA1197 | NTE1214 | |
| PA1001A | ||
| PA1002A | ||
| PA3001A | ||
| TA7302P | NTE1474 | |
| TA7302 | NTE1474 | |
| Capa µf | Volts | Quantity (112) |
| 15.000 | 100 | 4 |
| 1000 | 25 | 1 |
| 1000 | 16 | 2 |
| 470 | 100 | 2 |
| 470 | 6 | 2 |
| 330 | 35 | 4 |
| 220 | 80 | 2 |
| 220 | 35 | 2 |
| 220 | 25 | 1 |
| 220 | 16 | 2 |
| 220 | 6 | 1 |
| 100 | 80 | 2 |
| 100 | 35 | 2 |
| 100 | 16 | 8 |
| 100 | 10 | 8 |
| 100 | 6 | 1 |
| 47 | 16 | 1 |
| 33 | 10 | 2 |
| 47 | 10 | 2 |
| 33 | 35 | 2 |
| 33 | 25 | 1 |
| 33 | 16 | 4 |
| 22 | 35 | 2 |
| 22 | 16 | 1 |
| 22 | 10 | 1 |
| 10 | 35 | 4 |
| 10 | 25 | 4 |
| 10 | 16 | 4 |
| 10 | 10 | 1 |
| 6.8 | 6 | 1 |
| 4.7 | 35 | 1 |
| 4.7 | 25 | 10 |
| 4.7 | 16 | 2 |
| 3.3 | 50 | 1 |
| 3.3 | 25 | 2 |
| 2.2 | 50 | 14 |
| 1 | 50 | 3 |
| 0.56 | 35 | 2 |
| 0.47 | 50 | 1 |
| 0.22 | 35 | 5 |
| 0.1 | 35 | 1 |