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Technics SU-X955

Technics SU-X955
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ORDER
NO.
AD8903065C2
Service
Manual
Amplifier
SU-X955
Color
(K)...Black
Type
Digital
Integrated
Amplifier
Area
SPECIFICATIONS
(DIN
45
500)
@
AMPLIFIER
SECTION
DIN
power
output
1
kHz
THD:1%
Total
harmonic
distortion
rated
power
at
1
kHz
Harmonic
distortion
half
power
at
1
kHz
Residual
hum
and
noise
Damping
factor
Input
sensitivity
and
impedance
PHONO
TUNER,AUX,TAPE
1,TAPE
2
cD
Maximum
input
voltage
(1
kHz,RMS)
PHONO
S/N
(rated
power
8Q)
PHONO
TUNER,CD,AUX,TAPE
1,
TAPE
2
Frequency
responce
PHONO
2x60
W
(8Q)
1%
(8Q)
0.009%
(8Q)
0.2
mV
.30
(8Q)
3mV/47
kQ
150mV/22
kQ
200mV/22
kQ
100
mV
75
dB
(IHF,A:79
dB)
82
dB
(IHF,A:83
dB)
RIAA
standard
curve
+
0.8d8(30
Hz
~
15
kHz)
TUNER,CD,AUX,TAPE
1,
TAPE
2
CD,DAT
(digital
section)
15
Hz
~
55
kHz
(-3
dB)
15
Hz
~
20
kHz
{-0.5
dB)
Country
(E),
(E5)
|
Continental
Europe
ES
(EG)
F.R.
Germany
&
Italy
Muting
-20
dB
Super
bass
70
Hz,+10
dB
Output
voltage
TAPE
1,TAPE
2,REC
OUT
150
mV
Channel
balance,AUX
250
Hz
~
6,300
Hz
+1.0
dB
Channel
separation,
AUX
1
kHz
60d8
Headphones
output
level
and
impedance
520
mV/330Q
Load
impedance
AorB
8Q~.16Q
SURROUND
8O~
160
m@
GENERAL
Power
consumption
370
W
Power
supply
For
Great
Britain
For
others
Dimensions
(W
x
H
x
D)
AC
50
Hz/60
Hz,240V
AC
50
Hz/60
Hz,220V
360
x
128
x
300
mm
(14-3/16”
x
5-1/32”
x
11-13/16”)
Weight
Notes:
6.8
kg
(15
Ib.)
Tone
controls
BASS
50
Hz,
+10dB
~
-10
dB
TREBLE
20
kHz,
+
10
dB
~
-10
dB
"Technics
1.Specifications
are
subject
to
change
without
notice.
Weight
and
dimensions
are
approximate.
2.Total
harmonic
distortion
is
measured
by
the
digital
spectrum
analyzer.
Matsushita
Electric
Industrial
Co.,
Ltd.
Central
P.O.
Box
288,
Osaka
530-91,
Japan
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Technics SU-X955 Specifications

General IconGeneral
BrandTechnics
ModelSU-X955
CategoryAmplifier
LanguageEnglish

Summary

Specifications

Amplifier Section

Detailed technical specifications for the amplifier section.

General

General technical specifications including power and dimensions.

Before Repair

Protection Circuitry

Explains the protection circuit and troubleshooting steps.

Accessory

Lists included accessories for the unit.

Location of Controls

Front Panel

Identifies and describes controls on the front panel of the amplifier.

Rear Panel

Identifies and describes connections and controls on the rear panel.

Connections

CD Input Selector of this Unit

Explains the function and setting of the CD input selector.

DIGITAL INPUT Terminals of this Unit

Details the protection and use of digital input terminals.

Disassembly Instructions

Removal of the Cabinet

Step-by-step guide to remove the main cabinet.

Removal of the Front Panel

Steps to detach the front panel from the unit.

Removal of the Power Switch P.C.B.

Procedure for removing the power switch circuit board.

Block Diagram

Removal of the Power Transformer

Instructions for removing the power transformer component.

Removal of the Power IC and Regulator Transistor

Steps for removing power IC and regulator transistors.

Schematic Diagram

Description of FL Panel

Details the grid assignment for the FL display panel.

Pin Connection

Shows pin connections for various components.

Wiring Connection Diagram

Terminal Guide of ICs, Transistors and Diodes

Provides a guide to the terminals of integrated circuits, transistors, and diodes.

Functions of IC Terminals

IC601 (M50754-411 SP) Micro Computer

Detailed functions of the microcomputer IC terminals.

IC806 (YM3404 B) Digital Filter

Detailed functions of the digital filter IC terminals.

Resistors and Capacitors

Replacement Parts List

Integrated Circuits

Lists replacement parts for integrated circuits.

Transistors

Lists replacement parts for transistors.

Diodes

Lists replacement parts for diodes.

Variable Resistors

Coils and Transformers

Lists replacement parts for coils and transformers.

Component Combinations

Lists replacement parts for component combinations.

Displays

Lists replacement parts for display components.

Fuses

Lists replacement parts for fuses.

Switches

Lists replacement parts for switches.

Relays

Lists replacement parts for relays.

Others

Lists miscellaneous replacement parts.

Cabinet and Chassis

Packing Material

Lists packing materials.

Accessories

Lists included accessories.

Exploded View

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