Sony STR-AV220 Service Manual

US Model
Canadian Model
hay:
Photo : STR-AV320
SPECIFICATIONS
Audio Power Specifications
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 8-ohm load, both channels driven, from
40-20,000 Hz, rated 50 watts (STR-AV320) or
40 watts (STR-AV220) per channel minimum
RMS power, with no more than 0.8% total
harmonic distortion from 250 milliwatts to
rated output.
Other Specifications
Amplifier section
Continuous RMS power output (8 ohms, at 1 kHz less than 0.8% total
harmonic distortion)
STR-AV320 : 65 watts + 65 watts
STR-AV220 : 50 watts + 50 watts
Dynamic power
8 ohms
60 W + 60 W
55 W + 55 W
75W + 75 W 65 W + 65 W
at 1 kHz, IHF
Harmonic distortion
Less than 0.8% at rated output
Frequency response
PHONO: RIAA equalization curve +0.5 dB
CD, VIDEO, TAPE: 10 Hz — 50 kHz '? dB
Inputs
Sensitivity Impedance S/N (weighting network, input
wil level)
; 74 dB
PHONO 2.5 mV 50 kilohms 72 dB* (A, 2.5 mV)
cD
, 95 dB
VIDEO 150 mV 50 kilohms r
TAPE 80 dB* (A, 150 mV)
*'78 IHF
Outputs
50nd a
Ey
REC OUT, VIDEO (AUDIO) OUT
Voltage 150 mV
Impedance 10 kilohms
SPEAKER A, B
HEADPHONES
Tone controls
Muting
DBFB
Accepts speakers of
8-16 ohms
Accepts low and high impedance
headphones
BASS: +10 dB at 100 Hz
TREBLE: +10 dB at 10 kHz
— 20 dB
+12 dB at 70 Hz
FM tuner section
AM tuner section
Tuning range
87.5 — 108 MHz 530 — 1,710 kHz
Antenna terminals | 300 ohms, balanced External antenna terminal
LZ, 75 ohms, unbalanced |
Sensitivity at 50 dB | 18.3 dBf, 4.5 KV (mono)
quieting 38.3 dBf, 45 wV (stereo)
Usable sensitivity
11.2 dBf, 2 wV (IHF)
Loop antenna:
500 nV (at 1,000 kHz)
Signal-to-noise
ratio
76 dB (mono)
70 dB (stereo)
54 dB (at 50 mV/m)
Separation 45 dB at 1 kHz
Harmonic 0.2% (mono), 0.4% 0.3% (at 50 mV/m,
distortion (stereo) at 1 KHz 400 Hz)
Selectivity 60 dB at 400 kHz 40 dB at 10 kHz
Frequency 30 Hz- 15 kHz '35 dB
response
General
System Tuner section: PLL quartz-locked digital
synthesizer system
Preamplifier section: low-noise NF type
equalizer amp
Power amplifier section:
quasi-complementary SEPP
— Continued on page 2 —
FM STEREO FM-AM RECEIVER
ONY.