Sharp OPTONICA SM-3000H Service Manual

MODEL
SM-SOOOH
"In the interests of user-safety the set should be restored
to its original condition and only parts identical to those
specified be used."
SPECIFICATIONS
GENERAL Input sensitivity and input impedance
Power SOUICE............... AC 110/220/240V, 50/60Hz PHONO 1............... 2.5mV, 5mV/47k ohms
Power consumption.....270W PHONO 2.............. 2.5mV/22k ohms, 47k ohms, 100k
Semiconductors............ 1-IC (Integrated circuit), 47-Transis- ohms
tors, 24-Diodes, 1-LED AUX 1 and 2....... 150mV/47k ohms
Dimensions................... 442(W) x 144(H) x 380(D) mm TAPE PLAYBACK
Weise. tecctenst ota 14.5 kg Ee.) 6s Wie aaron ern 150mV/47k ohms
MAIN AMPLIFIER 7 |
CAP CUIV Jane cote iieteete: Two-step differential amplifier, pure
complementary system, OCL (Output
Condenser-Less)
Continuous power output
2 x 50W/4-ohms ...... Both channels drive, at 1kHz
2 x 35W/8-ohms ...... Both channels drive, at 1kHz
Total harmonic
distortion........ RTE 0.02% at 25W
Intermodulation
distortion ...............0000 0.05% at 25W
Power band width...... 7Hz ~ 70kHz at 0.3% distortion,
25W
Frequency response.....15Hz ~ 90kHz (+1.5dB)
Input sensitivity and
input impedance.......... 800mV/50k ohms
PRE AMPLIFIER lt
CIVCULU socyscersiareinicast: Three-step direct coupled equalizer
| circuit whose first step serves as
differential amplifier.
Type "NF" tone control circuit.
TAPE PLAYBACK 1 and 2 (DIN
socket) 1 and 2.....150mV/47k ohms
Output level and loaded impedance
REC 1 and 2........ 150mV/47k ohms
REC 1 and 2
(DIN socket) ......... 30mV/80k ohms
Max. allowable input |
for PHONO................. 300mV(RMS, 1kHz)
850mV(P-P, 1kHz)
Deflection of "'RIAA"' curve for
equalizer circuit from standard
"RIAA" curve............ £0.3dB |
Frequency response ..... 15Hz ~ 90kHz (TUNER, AUX,
: TAPE PLAYBACK) |
Tone control
BASS xaese ted aamcceniaaies +10dB at 100Hz, turnover.... 600Hz
+10dB at 60Hz, turnover...... 300Hz
TICDIC tx. desiessiessdeteats +9dB at 10kHz, turnover...... 1.5kHz
+9dB at 20kHz, turnover...... 3kHz
Filter |
Low cut... 30Hz, 12dB/oct
High cut................. 7kHz, 6dB/oct