Specification - Sherwood RX-772 Service Manual

Measuring methods are based on IHF and IEC standard 268-3
Measurements conditions, unless otherwise noted :
Output resistive load = (8) ohms / Both channel driven
Tone(Bass, Treble), Balance, EQ control : Center Position , Other SW's : OFF
Nominal input level : 5mV for MM, 0.5mV for MC, 220mV for general purpose inputs
Power figures should be kept minimum 10min. between 15 and 35 ¡ É
Terminator : 100ohm for MC, 1kohm for MM and general purpose inputs
Filter : IHF-A filter
Power supply : 230V / 50Hz(RDS), 220V / 60Hz(K)
FRONT AMP SECTION ( 2-CH STEREO RECEIVER )
¡ Ü
No. DESCRIPTION
1 INPUT SENSITIVITY
@ 1kHz , 47kΩ(RDS)
(K)
2
CHANNEL BALANCE
3
RESIDUAL NOISE, IHF-A FILTER
AT INPUT SHORTED
4
TOTAL HARMONIC DISTORTION
5 CONTINUOUS AVERAGE POWER
at (0.08)% THD
6
S/N RATIO, IHF-A FILTER
7
CHANNEL SEPARATION
AT INPUT SHORTED
8
FUNCTION CROSSTALK
AT INPUT SHORTED
9
FREQUENCY RESPONSE (-3dB)
1kHz Ref

SPECIFICATION

R/O = Rated Output
INPUT FREQ.
EXT 1kHz
MIC 1kHz
MIC 1kHz
EXT 1kHz
1kHz
EXT
1kHz
20Hz
EXT
1kHz
20kHz
20Hz
EXT 1kHz
20kHz
EXT 1kHz
1kHz
EXT
10kHz
AUX¡ æ CD 1 kHz
CD¡ æ AUX 1 kHz
EXT
REMARK UNIT
mV
mV
mV
R/O TO -40dB dB
VOL min.
VOL max. mV
%
R/O TO -3dB
%
%
W
8ohms W
W
R/O dB
dB
R/O
dB
dB
R/O
dB
1W Hz~kHz
NOMINAL L/R LIMIT L/R
200±30 200±50
- -
3±0.5 3±1
±0.5 ±2
¡ Â 0.2 ¡ Â 0.5
¡ Â 1.5 ¡ Â 2
¡ Â 0.02 ¡ Â 0.08
¡ Â 0.02 ¡ Â 0.08
¡ Â 0.05 ¡ Â 0.1
103 100
103 100
103 100
¡ Ã 95 ¡ Ã 92
¡ Ã 65 ¡ Ã 55
¡ Ã 45 ¡ Ã 40
75 70
75 70
10~100 15~90