Technics SA-5270 - Service Manual

ORDER NO. $D7706-1238
Service Manual
FM/AM STEREO RECEIVER
SA-5270
(XA), (XAL), (XE), (XGF),
(XSW), (XG), (XGH), (XSD)
SA-5270K
(XSW), (XG), (XGH), (XSD)
(XGF)
t
* This photo shows only the products for [XA] and [XAL]
The model SA-5270 (XA) is available in Asia, Latin America,
Middle East and Africa only.
The model SA-5270 (XAL) is available in Australia only.
The model SA-5270 (XE) is available in England only.
The model SA-5270/K (XGF) is available in France only.
The model SA-5270/K (XSW) is available in Switzerland only.
The mode! SA-5270/K (XG) is available in European only.
The model SA-5270/K (XGH) is available in Holland only.
The model SA-5270/K (XSD) is available in Scandinavia only.
* This photo shows the products for other destinations except (XA) and (XAL).
* SA-5270K is different in appearance and colour-tone.
* Cabinet colour differs according to area. |
TECHNICAL SPECIFICATIONS. Specifications are subject to change without notice for further improvement.
[DIN
45
500}
|
AMPLIFIER
SECTION
!
1 kHz continuous power
both channels driven 2x 44 W (40), 2 x 38 W (89)
20 Hz~20 kHz continuous power
both channels driven
40 Hz~16 kHz continuous power
both channels driven
Power bandwidth
both channels driven at 40, 82
Total harmonic distortion
rated power at 1 kHz
rated power at 20 Hz~ 20 kHz
rated power at 40 Hz~ 16 kHz
—26 dB rated power at 1 kHz
50 mW power at 1 kHz
Intermodulation distortion
rated power at 250 Hz: 8000 Hz=4:1, 42 0,3%
rated power at 60 Hz: 7 kHz=4:1, SMPTE, 80 0.3%
Damping factor 16 (40), 32 (80)
Input sensitivity and impedance
PHONO 2.5 mV/47 kO
AUX, TAPE 2 PLAYBACK 150 mV/33 kQ
TAPE 1 PLAYBACK, REC/PLAY input 180 mV/39 kQ
2 x 39 W (4), 2 x 35 W (82)
2 x 39 W (4Q), 2 x 35 W (80)
7 Hz~50 kHz, —3 dB
0.3% (42, 8Q)
0.3% (40, 80)
0.3% (40, 8Q)
0.2% (40)
0.2% (40)
Technics
PHONO maximum input voltage (1 kHz, RMS) 130 mV
S/N
rated power PHONO 65 dB (IHF, A: 78 dB)
AUX 80 dB (IHF, A:95 dB)
—26 dB rated power PHONO 55aB, AUX 55dB
50 mW power output PHONO 55cB, AUX 55dB
Frequency tesponse PHONO RIAA standard curve 10.5 dB
AUX 20 Hz~20 kHz, 0.5 dB
10 Hz~45 kHz, —1 dB
50 Hz, + 10dB~-~ 10 dB
10 kHz, + 10 dB~-- 10 dB
Loudness control (volume at —30 dB) 50 Hz,+ 10 dB
Output voltage TAPE 1,2 REC OUT 150mV
TAPE 1 REC/PLAY output BOmV
Channel balance (250 Hz~ 6300 Hz) 12.0 dB
Channel separation at 1 kHz 55 dB
Headphones level and output impedance 400 my/ 3300
Load impedance MAIN or REMOTE im16 2
MAIN + REMOTE §—16 2
Tone controls BASS
TREBLE
Matsushita Electric Trading Co., Ltd.
P.O. Box 288, Central Osaka Japan

Technics SA-5270 Specifications

General

Type	Stereo Receiver
Dimensions	450 x 140 x 320mm
Weight	8.6kg
Tuning range	FM, MW
Damping factor	30
Speaker load impedance	4Ω to 16Ω
Total Harmonic Distortion	0.5%
Input Sensitivity	2.5mV (MM)
Signal-to-Noise Ratio	70dB (MM)
Signal to noise ratio	70dB (phono)
Speaker Impedance	4 to 16 ohms
Frequency Response	10Hz-50kHz (±1dB)

Summary

Technical Specifications

Amplifier Section

Key electrical characteristics for the amplifier section.

FM Tuner Section

AM Tuner Section

General

Location of Controls

Alignment Points

To Remove Cabinet

To Remove Bottom Board

Alignment Instructions... Main Amplifier Circuit

Alignment Instructions... FM and AM Tuner Circuit

Block Diagram of Integrated Circuits

Dial Cord Installation Guide

Replacement Parts List

Exploded Views

Cabinet and Chassis Parts

Accessories

Packings

Change of Parts From SA-5270 (XG, XGH, XGF, XSD and XSW)