Sony str av 53 rec service manual

Page 1

SERVICE MANUAL

STR-AV53

US Model

STR-AV53 is similar to the earlier STR-AV770X (US model).
Refer to the STR-AV770X service manual for information not
contained in this service manual.

PARTS LIST
STR-AV770X STH-AV53
Lag; & Part No. Part No. Descggdon
30 5 A-4325»070-A Ar4325-554VA PANEL ASSY FRONT
31 60 4~943~853v01 *4-943-853-5} PANEL BACK
AGCESSORYS AND PACKING MATERIALS
*********************
Egg Pan No. Part No Dmrigtion
44 3-753-197-21 3~754w814-21 MANUAL. INSTRUCTION
(English)
* 44945-4064)! * 4~950~279~01 mDIVIDUAL CARTON

9-957-149-11

0 items marked it are not stocked since they are
seldom required for routine service Some delay
should be anticipated when ordering these items.

EM STEREfl/EM-AM RECEIVER

SONY®

English

' 92016324

SONY Corporatlon Printed in Japan
Audio Group @1992.3

Published by Customer Relations and Service Group

Page 2

STR-AV'I'IUX

SERVICE MANUAL us Model

Canadian Model
UK Model

5-0er

SPECIFICATIONS
Amplifier section FM tuner section
Rated power 8 ohms, at 20 Hz - 20 80 + 80 watts Frequency range 375 -108.0 MHz
output kHz
A I 1e m'nals 300 ohms. balanced
4 ohms. at 1 kHz IHF 90 + 90 watts n enna r I 75 ohms. unbalanced
Harmonic distortion at rated output Less than 0.08% Sensitivity at 50 dB (75 (I) 18.3 dBl, 2.2 V (mono)
. 38.3 dBf. 2231M (stereo)
tntermodulatlon (IM) distortion at rated output Less than 0.08%
Usable sensitivit 75 n 11.2 (131, 2 V IH
Power output 0! surround amplifier 20 walls (10 + 10 watts) H I II I F)
(8 ohms, at 1 kHz) S/N Mono 70 dB
Frequency PHONO RIAA equalization curve 10.5 dB Stereo 55 as
response
H Mono 0V3 %
co, DAT, TAPE 1,2 10 Hz # 50 kHz I: dB diitgfififlfia.
VIDEO 1.2 1 kHz Stereo 0.5 %
Residual noise Less than 80W IM distortion Mono 0,3 %
I Damping factor (8 ohms, at 1 kHz) 40 Stereo 0.5 %
Input sensitivily/ PHONO MM 2.5 mV. 50 kilohms Separation 45 dB at 1 kHz
impedance '0
F 30 H - 15 kHz dB
DAT,CD, VIDEO 1,2 TAPE 150 mv gum" res'mse 1 ~2
1,2 50 '0th Selectivrly 60 dB at 400 kHz
S/N PHONO MM 87 (18 Ca 1 t' 12 dB
79 dB' (A.2l5mV) p we '6 1°
, t'
DAT, CD VIDEO 1.2 TAPE 105 dB AM SUppress'O" Ia '0 54 dB
1.2 85 dB (A.150rnV) Image response ratio 70 dB
Output DAT OUT. TAPE OUT 1.2 150 mV IF 9 1' 70 dB
sensilljivity/ VIDEO 1 1o kitohms r Sponse (a '0
Irn ance ' '
pe SPEAKERS Accepts seekers ol 8 - Spurious response ratio 80 dB
16 ohms RF intermodulalion at 800 kHz so (18
HEADPHONES Accepts headphones of Auto tuning Low 30 as!
high and low impedance threshold
' BI
TONE controls BASS: :1an at ngn 50 d
100 HZ _ ' _
TREBLE: iIOdB at Continued on next page
kHz
Muting ~20dB
FM STEREO/FM-AM RECEIVER

' '7BIHF

SONY.»