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Sanyo JA 224 - Service Manual

Sanyo JA 224
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NOTE:
SPECIFICATIONS
The
below
mentioned
specifications
are
mainly
based
on
the
|HF
measurements
standard.
They
can
therefore
not
directly
be
compared
with
specifications
based
on
the
DIN
standard
or
other
standards.
Continous
output
power
Input
sensitivity
and
impedance
PHONO
AUX-CD/TUNER/TAPE
PLAY
Phono
overload
level
Output
level
TAPE
REC
.
Frequency
response
.
Tone
control
response
BASS
iikccen
TREBLE.
Loudness
control
response
100
Hz/10
kHz
...
Signal
to
noise
ratio
Power
requirements
Power
consumption
.....
AC
output
socket
.......
Dimension
(Approx.)
...
a
s
©
8
es
oe
a
@
®
8
®
&@
29
2
B@
#8
@
8
*
os
@
» 8
&
®
#*
@ @
@
&@
B
FB
es
»
8
®
&#
&
8
#@
8
8
8
»
8
8 ®
®@ &@
8
©
£
8
#
BF
8
2
@ 8
#@
8
8
8#
&@
@
8
aos
8
8
@
8s
# #
#
@
#8
Weight
(Approx.)
....
a
os
8
®
®»
®
@
@
©
8
8
8 8
*
20
W
x
2
{at
8
ohms,
0.9%
distortion)
2.5mV/47
kohms
150
mV/47
kohms
130
mV
RMS
(at
1
kHz)
150
mV
20
20,000
Hz
(AUX-CD)
+8 dB
(at
100
Hz)
+8
dB
(at
10
kHz)
+8
dB/+4
dB
95
dB
(AUX-CD)
AC:
220
V,
50
Hz
100
W
AC:
18
V,
200
mA
(max.)
420
(W)
x
200
(D)
x
80
(H)
mm
(16-1/2”
x
7-7/8"
x
3-1/8")
4
kg
(9
Ibs.)
Specifications
subject
to
change
without
notice.
WM-13267
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Summary

Specifications

Continous Output Power

Specifies the output power of 20W x 2 at 8 ohms with 0.9% distortion.

Input Sensitivity and Impedance

Details input sensitivity and impedance for PHONO (2.5mV/47 kohms) and AUX-CD/TUNER/TAPE PLAY (150 mV/47 kohms).

Phono Overload Level

Indicates the overload level for the PHONO input is 130 mV RMS at 1 kHz.

Output Level

Specifies the output level for TAPE REC as 150 mV.

Frequency Response

Defines the frequency response for AUX-CD as 20-20,000 Hz.

Tone Control Response

Details the tone control response for BASS (±8 dB at 100 Hz) and TREBLE (±8 dB at 10 kHz).

Loudness Control Response

Specifies loudness control response at 100 Hz ( +8 dB) and 10 kHz (+4 dB).

Signal to Noise Ratio

States the signal to noise ratio is 95 dB for AUX-CD.

Power Requirements

Lists power requirements as AC: 220 V, 50 Hz.

Power Consumption

Indicates a power consumption of 100 W.

AC Output Socket

Details the AC output socket as 18 V, 200 mA (max.).

Dimensions

Provides approximate dimensions: 420 (W) x 200 (D) x 80 (H) mm.

Weight

States the approximate weight is 4 kg (9 lbs.).

Adjustment and Block Diagrams

Adjustment of Bias Conditions

Details bias adjustment conditions for volume, balance, bass, treble, and switch settings.

IC Block Diagram

Presents the IC block diagram for the LA6458D/6458S Dual Operational Amplifier.

Parts List and Components

Electrical Parts

Lists electrical components including capacitors, resistors, and other parts with their designations.

Packing & Accessories

Details parts related to packing and accessories such as inner cases and manuals.

Cabinet & Chassis

Lists components for the cabinet and chassis, including front panels, knobs, and brackets.

Component Parts List

Provides a detailed list of components including resistors (R701-R731) and capacitors (C701-C721).

Power Switch PCB Assembly Parts

Lists parts for the Power Switch P.C.B. Assy, including resistors and switches.

Headphone Socket PCB Assembly Parts

Details parts for the Headphone Socket P.C.B. Assy, available in silver and black/brown variants.

LED PCB Assembly Parts

Lists parts for the LED P.C.B. Assy, including LED components.

Schematic and Wiring Diagrams

Schematic Diagram

Presents the complete schematic diagram of the power amplifier circuit.

Wiring Diagram

Illustrates the wiring connections for the main printed circuit board assembly.

Exploded View

Exploded View of Unit

Provides an exploded view of the SANYO JA 224 power amplifier for component identification.

Sanyo JA 224 Specifications

General IconGeneral
BrandSanyo
ModelJA 224
CategoryAmplifier
LanguageEnglish

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