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Sony TA-AX500 Service Manual

Sony TA-AX500
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Amplifier
section
Audio
Power
Specifications
US
model:
Power
output
and
total
harmonic
distortion:
With
8
ohm
loads,
both
channels
driven,
from
20—20,000
Hz;
rated
80
watts
per
channel
minimum
RMS
power,
with
no
more
than
0.008%
total
harmonic
distortion
from
250
milliwatts
to
rated
output.
Continuous
RMS
power
output
US
Model
AEP
Model
UK
Model!
E
Model
INTEGRATED
STEREO
AMPLIFIER
SPECIFICATIONS
|
AEP
model
UK
model
E
model
90
+
90
watts
100
+
100
watts
Music
power:
300
(1
kHz,
0.008%
THD,
|
(1
kHz,
0.008%
THD,
watts
(1
KHz,
0.1%
at
8
ohms)
at
6
ohms)
THD,
at
6
ohms)
80
+
80
watts
80
+
80
watts
100
+
100
watts
(20
Hz-20
kHz,
(20
Hz-20
kHz,
(1
KHz,
0.008%
THD|
0.008%
THD,
0.008%
THD,
at
6
ohms}
at
8
ohms)
at
8
ohms)
80
+
80
watts
80
+
80
watts
(According
to
DIN
45500,
0.008%
THD,
at
8
ohms)
at
8
ohms)
(20
Hz-20
kHz,
0.008%
THD,
SAFETY-RELATED
COMPONENT
WARNING!)
COMPONENTS
IDENTIFIED
BY
SHADING
AND
MARK
A
ON
THE
SCHEMATIC
DIAGRAMS
AND
IN
THE
PARTS
LIST
ARE
CRITICAL
TO
SAFE
OPERATION.
REPLACE
THESE
COMPONENTS
WITH
SONY
PARTS
WHOSE
PART
NUMBERS
APPEAR
AS
SHOWN
IN
THIS
MANUAL
OR
IN
SUPPLEMENTS
PUBLISHED
BY
SONY.
MICROFILM;
Power
bandwidth
(IHF)
Dynamic
headroom
Harmonic
distortion
5
Hz-50
kHz
(40
watts
output,
8
ohms,
0.02%
THD)
1.8
dB
(8
ohms,
'78
IHF)
Less
than
0.008%
at
rated
output
(8
ohms)
intermodulation
(IM)
distortion
(60
Hz:
7
kHz=4:
1)
Dynamic
range
Channel
separation
(at
1
kHz)
Frequency
response
Residual
noise
Damping
factor
Less
than
0.008%
at
rated
output
(8
ohms)
TUNER,
AUX,
CD,
TAPE
1,
2,
GRAPHIC
EQUALIZER
IN:
120
dB
PHONO
MM:
82dB
TUNER,
AUX,
CD,
TAPE
1,
2,
GRAPHIC
EQUALIZER
IN:
84dB
PHONO:
RIAA
equalization
curve
+0.2
dB
TUNER,
AUX,
CD,
TAPE
1,
2,
GRAPHIC
EQUALIZER
IN:
5
Hz-100
kHz
*9dB
(AEP
model)
5
Hz-150
kHz
*8.dB
(UK,
E,
US
models)
Less
than
25
pV
(8
ohms,
network
A)
50
(8
ohms,
1
KHz)
Continued
on
page
2
:
®
SERVICE
MANUAL
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Sony TA-AX500 Specifications

General IconGeneral
BrandSony
ModelTA-AX500
CategoryAmplifier
LanguageEnglish

Summary

Amplifier Specifications

Audio Power Output

Details power output and harmonic distortion for US, AEP, UK, E models, and continuous RMS power.

Technical Specifications

Covers power bandwidth, headroom, distortion, dynamic range, frequency response, residual noise, and damping factor.

Input and Feature Overview

Input Specifications

Lists input sensitivity, impedance, maximum input capability, and S/N ratio for various audio sources.

Key Unit Features

Highlights core technologies like Audio Current Transfer, Legato linear amplifier, wide dynamic range, and CD DIRECT function.

Safety Procedures

AC Leakage Testing

Explains how to perform safety checks, specifically AC leakage tests using various methods.

Section 1: Outline

Block Diagram

Visualizes the internal signal path and component relationships for understanding the circuit flow.

Section 2: Disassembly

Component Removal Procedures

Details steps for removing the case, bottom case, and joint bands for servicing.

Section 3: Electrical Adjustments

DC Bias Adjustment

Instructions for setting the DC bias level, critical for amplifier stability and performance.

DC Balance Adjustment

Procedure for adjusting DC balance to ensure symmetrical operation of both channels.

Section 4: Diagrams and Schematics

Mounting Diagrams

Illustrates physical layout and connections for power supply and other sections across different models.

Schematic Notes and Symbols

Explains schematic conventions, component values, and switch functions for circuit interpretation.

Power Supply Schematic

Detailed schematic diagrams of the power supply section for US, UK, and E models.

Semiconductor Lead Layouts

Transistor Pin Configurations

Visual guide showing the pinout (BCE, S-G-D, etc.) for various semiconductor components used in the unit.

Section 5: Exploded Views

Assembly Diagrams

Visual breakdown of the unit's components, showing their assembly order and location.

Parts Lists

General Parts Listing

Lists general components, accessories, and packing materials with part numbers.

Electrical Parts Reference

Details electrical parts like capacitors, resistors, coils, and semiconductors with specifications and part numbers.

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