Teac BX-300 User manual
TEAC
SERVICE
MANUAL
BX-300
High
Speed
DC
Integrated
Amplifier
BX-300
DC
Integrated
Amplifier
CONTENTS
1.
Specifications
and
service
data...
2.2...
ee
ee
es
2
2.
Parts
WOCAtiON
=
650
oS
S0e
Be
aca
Se
ce
ee
a
ee
Stee
ap
ale
a
ae
eS
ee
eae
a
ee
3
3.
Adjustments
and
voltage
conversion...
2.2...
ee
ee
es
4
4.
Block
and
level
diagram
2...
ee
ee
ee
6
5.
Parts
location
and
parts
list
(BX-500)
2.2...
es
8
6.
Parts
location
and
parts
list
(BX-300)
..
2...
2.
ee
ee
ee
14
7.
PC
boards
and
parts
list
(BX-500).
2...
ee
ee
20
8.
PC
boards and
parts
list
(BX-300)..
2...
ee
ee
26
CAUTION
A.
Parts
marked
with
this
sign
are
safety
critical
components.
They
must
always
be
replaced
with
identical
components
-
refer
to
the
TEAC
Parts
List
and
ensure
exact
replacement.
Effective:
August,
1979
C-90019
5704001500
BX-500/8X-300
1
SPECIFICATIONS
AND
SERVICE
DATA
SPECIFICATIONS
Input
Level
PHONO
MC
PHONO
MM
TUNER,
AUX
TAPE
1,
2
Input
Impedance
PHONO
MC
PHONO
MM
TUNER,
AUX
TAPE
1,2
Output
Level
TAPE
REC
1,
2
Rated
Output
Power
(Both
channels
driven,
Distortion
0.1
%,
Impedance
8
©,
1
kHz)
Required
Speaker
Impedance
SPEAKERS
Select
AorB
SPEAKERS
Select
A+B
Power
Consumption
Weight
Dimensions
Width
Height
Depth
Power
Requirement
and
Frequency
SERVICE
DATA
Power
Muting
Time
3~8
Seconds
AUX
Section
Characteristic
Frequency
Response
10
Hz~
30
kHz
(0
dB
+
1
dB)
Input:
1kHz,
7
mV
+3
dB
Output:
1V
TONE
Controls
100
Hz
1
kHz
BASS
and
TREBLE
MAX
+7dB
+1dB
OdB+1dB
+7dB
+1dB
BASS
and
TREBLE
MIN
—7dB+1dB
OdB+1dB
-—7dB
+1dB
Harmonic
Distortion
20Hz
Lessthan
0.01%
1kHz
Lessthan
0.008%
20
kHz
Lessthan
0.1%
Channel
Separation
More
than
42
dB
(At
1
kHz)
Noise
Level
Lessthan
560uV
(-65dB),
Damping
Factor
(8.2)
50
LOUDNIESS
Control
(—40
dB)
100
Hz
+8
dB
+1
dB
20
kHz
+5
dB
+1
dB
Muting
Circuit
(BX-500)
—21
dB +2
dB
LOW
CUT
Filter
(BX-500)
—3
dB
+1
dB/20Hz
TONE
OUT
Circuit
(BX-500)
+0
a)
Frequency
Response
10Hz
_4
dB
100
&Hz
ir
dB
b)
Marmonic
Distortion
29
Hz
Less
than
0.008%
1kHz
Lessthan
0.008%
20
kHz
Lessthan
0.2%
c)
Woise
Level
10
k
ohm
150
mV
55W+55W
4~16
ohm
8
~
16
ohm
100
W
8.5
kg
(18-12/16
Ibs)
410
mm
(16-1/8”)
140
mm
(5-1/2)
272
mm
(10-11/16")
BX-300-—_—___—_—__
50
2V
2.5
mV
150
mV
150
mV
15
ohm
47k
ohm
10k
ohm
10k
ohm
150
mV
35W+35W
4~16
ohm
8~16
ohm
80
W
8.0
kg
(17-10/16
Ibs)
410
mm
(16-1/8")
140
mm
(5-1/2")
272
mm
(10-11/16")
Weighted
GENERAL
EXPORT
|
100,117,220,240
50/60
U.K.,AUSTRALIA
|
240
|
50
USA,CANADA
|
17
|
S60
Phono
MM
Section
Input
Level
(input
terminal
3.3
ohm)
2.5
mV
+3
dB
(1
kHz)
Frequency
response
(RIAA
Characteristic)
20
Hz
+19
dB
+1dB
100
Hz
+13.1
dB
+0.5
dB
10
kHz
-13.7
eB
20.508
|
KHz
OB
10
kHz
20
kHz
—19.6
dB
+1
dB
Noise
Level
Less
than
48
»V
(
—86
dB
),
Weighted
Harmonic
Distortion
20Hz
Lessthan
0.01%
1kHz
Lessthan
0.005%
20
kHz
Lessthan
0.1%
Phono
MC
Section
Input
Level
(Input
Terminal
3.3
ohm)
50
nV
+3 dB
(1
kHz)
Frequency
response
(RIAA
Characteristic)
20
Hz
+19dB
+1
dB
1kHz
OdB
20
kHz
—19
dB
+1
dB
Noise
Level
Less
than
250
uV
(
—72
dB
),
Weighted
Harmonic
Distortion
Less
than
0.03%
Less
than
0.03%
Less
than
0.7%
Less
than
0.1%
Less
than
0.1%
Less
than
0.7%
1
kHz
20
kHz
The
power
requirements
for
products
distributed
in
certain
countries
of
Europe,
U.K.,
Australia,
Canada
and
the
United
States
are
not
adjustable.
e
Improvements
may
result
in
features
or
specifications
change
without
Less
than
200
uV
(—74
dB),
Weighted
notice.
BX-500/BX-300
2
PARTS
LOCATION
BX-500
R139
TP.1
TP.2
TP.6
R239
TP.5
TP.3
TP.
iN/OUTPUT
PCB
Assy
MAIN
PCB
Assy
R233
METER
PCB
Assy
=
We
SW
PCB
Assy
Voltage
Selector
“
¢
;
|
cane
¢
TONE
CON
AMPL—_—_—r
PCB
Assy
:
7
R713
TONE
CON
AMPL
R813
R133
VOLUME
PCB
Assy
TA-1066
PCB
Assy
BX-300
R130
TP.1TP.5
TP.3
TP.6
TP.4
R230
TP.2
ayes
—
IN/OUTPUT
roe
PCB
Assy
Voltage
Selector
SW——;—
pee”)
SW
PCBA
yy
VOLUME
PSB
Assy
TONE
CON
AMPL
PCB
Assy
TA-l067
BX-500/BX-300
|
3
ADJUSTMENTS
AND
VOLTAGE
CONVERSION
3.1
BEFORE
ADJUSTMENT
(Do
not
apply
AC
power)
1.
Set
the
VOLUME
control
to
MIN
and
SPEAKERS
selector
to
OFF.
2.
Set
the
semi-fixed
variable
resistors
at
the
following
positions.
R133/R233
(BX-500)
R124/R224
(BX-300)
R139/R239
(BX-500)
R130/R230
(B
X-300)
At
the
center
of
full
turning
range
Fully
counter-clockwise
3-2.
MID-POINT
POTENTIAL
ADJUSTMENT
1.
Depress
POWER
switch
to
ON.
2.
Connect
the
DC
voltmeter
between
T.P-5
(for
L-ch)
or
T.P-6
(for
R-ch)
and
GND.
3.
Adjust
R133/R233
(BX-500)
or
R124/R224
(BX-300)
so
that
the
voltmeter
indicates
0
V
+
10
mV.
Note:
A
differential
voltmeter
is
preferable.
OC
VOLTMETER
TA-1068
3-3.
IDLING
CURRENT
ADJUSTMENT
Connect
the
DC
voltmeter
between
T.P-1
and
T.P-2.
.
Adjust
R139
(BX-500)
or
R130
(BX-300)
so
that
the
DC
voltmeter
indicates
approx.
100
mV.
.
After
R139
(BX-500)
or
R130
(BX-300)
adjusted,
wait/30
seconds
for
idling.
.
Connect
the
DC
voltmeter
between
T.P-3
and
T.P-4.
Repeat
procedures
1
to
4
above
and
adjust
R239
(BX-500)
or
R230
(BX-300).
1.
2
3
4.
Readjust
R139
(BX-500)
or
R130
(BX-300)
so
that
the
DC
voltmeter
indicates
26
mV
+15 mV.
5
6.
N
|
BX-500/BX-300
OTE:
When
using
an
oscilloscope,
instead
of
the
DC
voltmeter,
carefully
connect
the
oscilloscope
so
that
the
oscilloscope
GND
terminal
is
not
connected
to
the
GND
of
the
amplifier,
thereby
causing
a
short.
Use
the
oscilloscope
in
the
floating
state.
DC
VOLTMETER
100
mv
26
mV
i
L
"
*e
|
|
ur
&
3-4
POWER
OUTPUT
METER
ADJUSTMENT
(BX-500
only)
1.
Connect
the
AC
voltmeter
to
the
SPEAKERS
A
terminal.
.
Set
the
VOLUME
control
to
MAX.
oO
PF
Wh
NOTE:
BX-500
should
be
placed
in
the
normal
operating
position.
3-5
VOLTAGE
CONVERSION
(GENERAL
EXPORT
MODEL
ONLY)
BE
SURE
TO
REMOVE
THE
POWER
CORD
FROM
THE
AC
OUTLET
BEFORE
REMOVING
THE
OUTER
CASE
AND
RE-
POSITIONING
THE
VOLTAGE
CONVERSION
PLUG.
1.
Remove
the
top
and
side
metal
cover
by
removing
screws
in
each
side
of
the
metal
cover.
2.
Locate
the woltage
selector
plug
on
the
left
side
of
the
BX-500,
BX-300.
3.
Remove
the
plug
by
pulling
it
out
and
re-install
it
so
that
the
arrow
on
the
plug
exactly
lines
up
with
the
white
line
that
in-
dicates
the
appropriate
voltage.
4.
Replace
the
top
cover.
R139(R130)
.
Set
the
SPEAKERS
selector
to
A
and
SOURCE
selector
to
AUX.
-
Apply
a
1
kHz
input
signal
to
provide
an
output
power
of
50
W
(approx.
20
Vrms)
to
AUX
terminals
(AUX
input
approx.
150
mV).
.
Adjust
R713
and
R813
so
that
the
Power
Output
Meters
indicate
50
W.
117V
lOOV
TA-
065
BX-500/BX-300
4
BLOCK
AND
LEVEL
DIAGRAM
BX-500
[MONITOR
]
TAPE
2,
[move]
—
[Louoness]
[VOLUME
]
TONE
CONTROL
BUFFER
BALANCE
Roh(
TAPE
PLAY
2)
Reh
TAPE
REC
2)
PROTECTOR
CIRCUIT
1
Sa
eta
ae;
4
PHONO
|
MC
WATTS
METER
COPPLY
+8
RECTIFIER
paral
TA-1070
+40
+30
F
SPEAKERS:
60,
S5W
#20:
avems
*10-F
;
HEAD
PHONES
+
$0.0:25W.
oT
Ul
Lavems
FLAT
AMPL
t
+10
=
1808
r
ecesevred
~20
|
“TONE
SW
OUTRUNPY
POSITION
=80)
£0
AMPL
G2
35.508
~a0
-50
ea:
-60
-70
+
-80
|
-90
|
f:
1
KHz
BX-500/BX-300
BX-300
rfaBe}
|
prar2
O
@
|
PLAY!
‘Cc
°9
Reh{TAPE
PLAY
2)
g)
fe
O
99
Reh(TAPE
REC
2)
IN/OUT(DIN)
|
i
LIN/OUT(OIN)
\
TAPE
COPY
MONITOR
LOUDESS
Tap
TAPE2
REC
2
Co
°
SOURCE
SOURCE,
™
(11)
CN
Gaal
lina
@@
@
©
lo
N
reel
&
ami
(0)
°
CONTROL
pia
©)
TA-1072
+30
SPEAKERS
oe
6n,35W
POWER=AMPL
16.7
Vrms
+10
G*25,.7d8
HEAD
PHONES
ies
Sot
Be
:
60,0.25W
L4vi
-10
AVems
ate
Beis
-20
i
eae
en
=20
EQ
AMPL
~40
G
35548
-50
-60
ens
-70
ne
AMPL.
Bg,
BAO
wet
et
hateas
-60
os
-90
(50uV)
:
f:
1kHz
BX-500/BX-300
5
PARTS
LOCATION
AND
PARTS
LIST
(BX-500)
NOTE:
BX-500B
on
parts
list
shows
black
type
of
front
panel.
PARTS
LOCATION-1
12
3
4
5
6
2
7
8
10
12
9
i214
13 l2
3-M4x6
(Round
Washer
Head
BLK)
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
REMARKS
1-1
*5534772000
Escutcheon,
Power
Switch
*5800004800
Escutcheon,
Power
Switch
(BX-500B)
1-2
5534774000
Button,
Power
Switch
5800004600
Button,
Power
Switch
(BX-500B)
1-3
*5503215000
Cover
Assy,
Meter
*5800005200
Cover
Assy,
Meter
(BX-500B)
1-4
*5533224000
Escutcheon,
Meter
*5800005100
Escutcheon,
Meter
(BX-500B)
1-5
*5533220000
Cover,
Meter
1-6
*5502252000
Panel
Assy,
Front
*5800006600
Panel
Assy,
Front
(BX-500B)
1-7
*5553327000
Escutcheon,
Volume
*5800007100
Escutcheon,
Volume
(BX-500B)
1-8
5555784000
Knob,
VOLUME
5800007000
Knob,
VOLUME
(BX-500B)
1-9
5555785000
Knob,
SPEAKERS:
BASS:
TREBLE
5800007200
Knob,
SPEAKERS-
BASS:
TREBLE
(BX-500B)
1-10
5555729000
Knob,
SOURCE
5800007300
Knob,
SOURCE
(BX-500B)
1-11
*5534781000
Escutcheon,
Lever
(3P}
*§800007500
Escutcheon,
Lever
(3P)
(BX-500B)
1-12
5534779000
Knob,
Lever
5800007600
Knob,
Lever
(BX-500B)
1
-13
5555781000
Knob,
BALANCE
5800004400
Knob,
BALANCE
(BX-500B)
1-14
*5534780000
Escutcheon,
Lever
(2P)
*5300007400
Escutcheon,
Lever
(2P)
(BX-500B)
BX-500/BX-300
PARTS
LOCATION-2
10
18
(7
16
15
4
13)
12
Io
9
BM3x6
BM3x6 BM3x6
TA-1075
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
REMARKS
2-1
4
5134111000
Switch,
Power
JAPAN,
GENERAL
EXPORT
4
5134112000
Switch,
Power
U.S.A.,
CANADA
4.
5134125000
Switch,
Power
EUROPE,
U.K.,
AUSTRALIA
2-2
5165066000
Meter,
Power
Output
5296000200
Meter,
Power
Output
(BX-500B)
2-3
*5134113000
Switch,
Push
2-4
*5551042000
Chassis,
Front
2-5
5150250000
Resistor,
Variable
100k
ohm-B
x
2
2-6
*5158031000
PCB
Assy,
LED
*5157031000
PCB,LED
Partof2
-
6
2-7
5143139000
LED,(Green)
SLB-26GG1
Partof2
-
6
2-8
*5138014000
Switch,
Operation
2-9
*5132055000
Switch,
Lever
2
-10
*5534432000
Foot
2-11
5132050000
Switch,
Lever
2
-12
5132054000
Switch,
Lever
2
-13
5150249000
_
Resistor,
Variable
300
k
ohm
2
-14
5132051000
Switch,
Lever
2
-15
5132048000
Switch,
Lever
2
-16
5150251000
_
Resistor,
Variable
50k
ohm-B
x
2
2-17
5133016000
Switch,
Rotary
2
-18
5124022000
Jack,
Phones
2
-19
*5534118000
Rivet,
Push
BX-500/BX:300
|
PARTS
LOCATION-3
33
24 23
22
21
20
19
i6
15
14
13
12
PTTM3x6
BM3x8
PTT
M3x6
PTTM3x6
TA-l076
BX-500/BX-300
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
|
REMARKS
3
-
1
*5122399000
Terminal,
4P
Push
3-2
*5553331000
Heat
Sink
3
.-
3
*5158029000
PCB
Assy,
MAIN
*5157029000
PCB,
MAIN
Partof3
-
3
3-4
*5158024000
PCB
Assy,
IN/OUTPUT
*5157024000
PCB,
IN/OUTPUT
Partof3
-
4
3.
-
5
*5127616000
Lead,
Jumper
3
-
6
*5552444000
_=—
Panel,
Rear
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5552445000_=—s—
Panel,
Rear
EUROPE,
U.K.,
AUSTRALIA
3
-
7
*5138016000
Switch,
Slide
3
-
8
*5138017000
Switch,
Wire
3-9
*5553329000
=
Shassis,
Right
Side
3
-10
*5580007000
Washer
3-11
*5138014000
Switch,
Operation
3-12
*5132055000
Switch,
Lever
3-13
*5132054000
Switch,
Lever
3-14
*5132050000
Switch,
Lever
3
-15
*5158025000
PCB
Assy,
SW
*5157025000
PCB,
SW
Partof3
-15
3-16
*5551042000
=
Shassis,
Front
3-17
*5552446000_
=
Chassis,
Left
Side
3
-18
*5555788000
Cover,
Transistor
3-19
*5158026000
PCB
Assy,
VOLUME
*56157026000
PCB,
VOLUME
Partof3
-19
3
-20
*5555786000
Support,
PCB;
A
3-21
*5127613000
Lead,
Jumper
3
-22
*5132048000
Switch,
Lever
3
-
23
*5158027000
PCB
Assy,
TONE
CON
AMPL
*5157027000
PCB,
TONE
CON
AMPL
Part
of
3
-
23
3-24
*5158030001
PCB
Assy,
METER
AMPL
*5157030001
PCB,
METER
AMPL
Part
of
3
-
24
3-25
4
5134111000
Switch,
Power
JAPAN,
GENERAL
EXPORT
A
5134112000
Switch,
Power
U.S.A.,
CANADA
A
5134125000
Switch,
Power
EUROPE,
U.K.,
AUSTRALIA
3
-
26
*5§133015000
Socket,
Voltage
Selector
GENERAL
EXPORT
3-27
*5133014000
Plug,
Voltage
Selector
GENERAL
EXPORT
3
-
28
*5503231002
Bracket
Assy,
Voltage
Selector
*5553328000
Bracket,
Voltage
Selector
Partof3
-28
3
-29
*5041227000
Holder,
Fuse
(w/Cover)
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5142096000
Holder,
Fuse
EUROPE,
U.K.,
AUSTRALIA
A
5142117000
Fuse,
7A
125V
U.S.A.,
CANADA
A
5142215000
Fuse,
7A
125V
GENERAL
EXPORT
4.
5142215000
Fuse,
7A
125V
JAPAN
A,
5142191000
Fuse,3.15AT
250V
EUROPE,
U.K.,
AUSTRALIA
3
-30
*5720003800
Seal,
Fuse
Capacity
3.15AT
250V
EUROPE,
U.K.,
AUSTRALIA
*5720003900
Seal,
Fuse
Capacity
7A
125V
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
3-3)
A
5152222000
Transformer,
Power
EUROPE,
U.K.,
AUSTRALIA
A
5152223000
Transformer,
Power
GENERAL
EXPORT
4
5152224000
=
Transformer,
Power
JAPAN,
U.S.A.,
CANADA
3
-32
*5502255000
Chassis
Assy,
Bottom
*5552447000
Chassis,
Bottom
Part
of
3
-32
3
-
33
*6158028000
PCB
Assy,
FONE
CON
AMPL
*5157028000
PCB,
TONE
CON
AMPL
Part
of
3
-34
4*5185664000
_
=‘
Resistor,
Carbon;
R412,R512
100hm
%W
Non
Flammable
Partof3
-34
*5160050000
Coil,
24H
Part
of
3.
-
34
11
BX-500/BX-300
PARTS
LOCATION-4
4
5
6
svi}
est
|
emt
CCE
ASS
soshatvcnsanicverteceon
ett
eet
AAR
OES
PTTM3x6
BM3x8
PTTM3x6
PT
TM3x6
TA-1077
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
REMARKS
4
-
1
*5552446000
Chassis,
Left
Side
4-2
*5122399000
Terminal,
4P
Push
4-3
*5502255000
Chassis
Assy,
Bottom
*5552447000
Chassis,
Bottom
Partof4
-
3
4-4
*5555846000
Seat,
Insulator
4-5
*5553334000
Support,
Transistor
4-6
*5158029000
PCB
Assy,
MAIN
*5157029000
PCB,
MAIN
Partof4
-
6
4-7
*5552444000
Panel,
Rear
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5552445000_
=—~
Panel,
Rear
EUROPE,
U.K.,
AUSTRALIA
4-8
*5158024000
PCB
Assy,
IN/OUTPUT
*5157024000
PCB,
IN/OUTPUT
Partof4
-
8
4-9
*5127616000
Lead,
Jumper
4
-10
5138016000
Switch,
Slide
4
-11
*5138017000
Switch,
Wire
4
-12
*5553329000
Chassis,
Right
Side
4
-13
*5138014000
Switch,
Operation
4
-14
A*5052909000
Spark
Killer,
0.1
mfd
+
120
ohm
300
V
JAPAN
A*5171606000
Spark
Killer,
0.01
mfd
125
Vv
U.S.A.
4&*5052916000
Spark
Killer,
0.01
mfd
125
V
CANADA
4*5052913000
Spark
Killer,
0.1
mfd
+
120
ohm
300V
GENERAL
EXPORT
4A*5052917000
Spark
Killer,
0.01
mfd
450
V
EUROPE,
U.K.,
AUSTRALIA
12
BX-500/BX-300
PARTS
LOCATION-5
9
BTBM3x8
4
5
BM3x8
8
7
TA-1078
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
5
1
*5128102000
5
2
*6552438000
5
3
*5552444000
*5552445000
5
4
*5553331000
5
5
5122399000
5
6
*5534661000
*5534663000
*5534660000
5
7
A,
5128034000
A
5128075000
4*5128018000
4*5128094000
4*51
28047000
4*°5128031000
5
8
A
5122397000
5
9
*5128103000
5
-10
*5045407100
DESCRIPTION
REMARKS
Pin
Jack,
4P
(w/DIN)
Cover,
Top
Panel,
Rear
Panel,
Rear
Heat
Sink
Terminal,
4P
Push
Strain
Relief,
AC
Power
Cord
Strain
Relief,
AC
Power
Cord
Strain
Relief,
AC
Power
Cord
Cord,
AC
Power
Cord,
AC
Power
Cord,
AC
Power
Cord,
AC
Power
Cord,
AC
Power
Cord,
AC
Power
Socket,
AC
Outlet
Pin
Jack,
4P
Terminal,
GND
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
EUROPE,
U.K.,
AUSTRALIA
U.K.
AUSTRALIA
Ali
except
U.K.,
AUSTRALIA
JAPAN,
GENERAL
EXPORT
U.S.A.,
CANADA
EUROPE
EUROPE
U.K.
AUSTRALIA
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
13
BX-500/BX-300
6
PARTS
LOCATION
AND
PARTS
LIST
(BX-300)
NOTE:
BX-3008
on
parts
list
shows
black
type
of
front
panel.
PARTS
LOCATION-1
2
3
4
5
6 7
3-M4x6
TA-1079
(Round
Washer
Head
BLK)
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
REMARKS
1
-
1
*5534772000
Escutcheon,
Power
Switch
*5800004800
Escutcheon,
Power
Switch
(BX-300B)
1-2
5534774000
Button,
Power
Switch
5800004600
Button,
Power
Switch
(BX-300B)
1-3
*5552438000
Cover,
Top
1-4
*5502251000
Panel
Assy,
Front
*5800006500
Panel
Assy,
Front
(BX-300B)
1-5
*5553327000
Escutcheon,
Volume
*5800007100
Escutcheon,
Volume
(BX-300B)
1-6
5555784000
Knob,
VOLUME
5800007000
Knob,
VOLUME
(BX-300B)
1
/
7
5534729000
Knob,
SOURCE
5800007300
Knob,
SOURCE
(BX-300B)
1
-
8
5534779000
Knob,
Lever
5800007600
Knob,
Lever
(BX-300B)
1-9
*5534781000
Escutcheon,
Lever
(3P)
*5300007500
Escutcheon,
Lever
(3P)
(BX-300B)
1-10
5555781000
Knob,
BALANCE
5800004400
Knob,
BALANCE
(BX-300B)
1-11
*5534780000
Escutcheon,
Lever
(2P)
*5800007400
Escutcheon,
Lever
(2P)
(BX-300B)
1-12
5555785000
Knob,SPEAKERS-
BASS:
TREBLE
5800007200
Knob,
SPEAKERS:
BASS
-TREBLE
(BX-300B)
1-13
5124022000
Jack,
Phones
14
REF.
NO.
2-1
2-2
2-3
2-4
2-5
2-6
2
2-8
2-9
2
-10
2-11
2-12
2
-13
2
-14
2
-15
BM3x6
10
PARTS
NO.
*5534118000
5143139000
*5158021000
*5157021000
*5180080000
*5143148000
A
5134111000
A
5134112000
A
5134125000
*5551042000
5150250000
*6158031000
*5157031000
*5138014000
*5132055000
*5534432000
*5132054000
5150249000
*5132051000
5150251000
5133016000
IS
PARTS
LOCATION-2
14
BM3x6
5
6
13
12
BX-500/BXx-300
1
BM3x6
10
9
TA—1080
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
DESCRIPTION
Rivet,
Push
LED,
(Green)
SLB-26GG1
PCB
Assy,
LED
PCB,
LED
Resistor,
Carbon;
820
ohm
%W
Diode,
D903.
1S2471HJ
Switch,
Power
Switch,
Power
Switch,
Power
Shassis,
Front
Resistor,
Variable
100
k
ohm-B
x
2
PCB
Assy,
LED
PCB,
LED
Switch,
Operation
Switch,
Lever
Foot
Switch,
Lever
Resistor,
Variable
300
k
ohm
Switch,
Lever
Resistor,
Variable
50
k
ohm-B
x
2
Switch,
Rotary
Part
of
2
Part
of
2
Part
of
2
Part
of
2
Part
of
3
Part
of
2
REMARKS
-
15
JAPAN,
GENERAL
EXPORT
U.S.A.,
CANADA
EUROPE,
U.K.,
AUSTRALIA
15
Bx-500/BX-300
|
PARTS
LOCATION-3
27
:
20
8
26
25
9
24
10
)
tt
BM3x8
19
18
I7
BM3x6
IS
IS
4
13
12
PTT
M3x6
PTT
M3x6
PTT
M3x6
TA-1081
16
BX-500/Bx-300
Parts
marked
with
*require
longer
delivery
time than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
REMARKS
3
-
1
*5122399000
Terminal,
4P
Push
3
-
2
*5553330000
Heat
Sink
3-3
*5158020000
PCB
Assy,
MAIN
*5157020000
PCB,
MAIN
Partof3
-
3
3-4
*5158016000
PCB
Assy,
IN/OUTPUT
*5157016000
PCB,
IN/OUTPUT
Partof3
-
4
3-5
*5127616000
Lead,
Jumper
3
-
6
*5552444000
‘Panel,
Rear
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5552445000
‘Panel,
Rear
EUROPE,
U.K.,
AUSTRALIA
3
7
*5138016000
Switch,
Slide
3
-
8
*5138017000
Switch,
Wire
3-9
*5553329000
Chassis,
Right
Side
3
-10
*5580007000
Washer
3-11
*5138014000
Switch,
Operation
3-12
5132055000
Switch,
Lever
3-13
5132054000
Switch,
Lever
3-14
*5158017000
PCB
Assy,
SW
*5157017000
PCB,
SW
Partof3
-14
3-15
*5158018000
PCB
Assy,
VOLUME
*5157018000
PCB,
VOLUME
Partof3
-15
3-16
5132051000
Switch,
Lever
3-17
*5555786000
Support,
PCB;A
3
-18
*5158019000
PCB
Assy,
TON
CONE
AMPL
*5157019000
PCB,
TON
CONE
AMPL
Partof3
-18
3-19
*5551042000
Chassis,
Front
3
-20
*5553332000
Bracket,
Transformer
Mounting
3-21
A
5134111000
Switch,
Power
JAPAN,
GENERAL
EXPORT
A
5134112000
Switch,
Power
U.S.A.,
CANADA
4A,
5134125000
Switch,
Power
EUROPE,
U.K.,
AUSTRALIA
3-22
*5133015000
Socket,
Voltage
Selector
GENERAL
EXPORT
3
-23
*5133014000
Plug,
Voltage
Selector
GENERAL
EXPORT
3-24
*5503231000
Bracket
Assy,
Voltage
Selector
*§553328001
Bracket,
Voltage
Selector
Partof3
-24
3
-25
*5041227000
Holder,
Fuse
(w/Cover)
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5142096000
——
Holder,
Fuse
EUROPE,
U.K.,
AUSTRALIA
A
5041144000
Fuse,2A
250
V
U.S.A.,
CANADA
4,
5041101000
Fuse,
1A
250
V
GENERAL
EXPORT
A
5041114000
Fuse,2A
250
V
GENERAL
EXPORT
A
5041141000
Fuse,1
A
250
V
EUROPE,
U.K.,
AUSTRALIA
3-26
*5564127000
Seal,
Fuse
Capacity
1A
250
V
EUROPE,
U.K.,
AUSTRALIA
*5560047000_
Seal,
Fuse
Capacity
2A
250
V
JAPAN,
U.S.A.
*5564722000
Seal,
Fuse
Capacity
2A
250
V
JAPAN,
U.S.A.,
CANADA
*5564677000_
‘Seal,
Fuse
Capacity
2A
100-117V,
1A
220-240
V|
GENERAL
EXPORT
3-27
4,
5152219000
Transformer,
Power
EUROPE,
U.K.,
AUSTRALIA
4
§152220000
A
5152221000
Transformer,
Power
Transformer,
Power
GENERAL
EXPORT
JAPAN,
U.S.A.,
CANADA
17
BX-500/BX-300
PTTM3x6
BM3x8
PARTS
LOCATION4
6
5
PTT
M3x6
PTT
M3x6
TA-
1082
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
REMARKS
4-1
*5552446000
Chassis,
Left
Side
4
-
2
*5122399000
Terminal,
4P
Push
4
-
3
*5502255000
Chassis
Assy,
Bottom
*5552447000_
Chassis,
Bottom
Partof4
-
3
4
-
4
*5555846000
Seat,
Insulator
4-5
*5553334000
Support,
Transistor
4-6
*5158020000
PCB
Assy,
MAIN
*5157020000
PCB,
MAIN
Partof4
-
6
4-7
*5552444000
Panel,
Rear
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5552445000
~=—~Panel,
Rear
EUROPE,
U.K.,
AUSTRALIA
4
-
8
*5158016000
PCB
Assy,
IN/OUTPUT
*5157016000
PCB,
IN/OUTPUT
Partof4
-
8
4-9
*5127616000
Lead,
Jumper
4
-10
5138016000
Switch,
Slide
4-11
*5138017000
Switch,
Wire
4
-12
*5553329000
Chassis,
Right
Side
4
-
13
5138014000
Switch,
Operation
4-14
A*5052909000
=
Spark
Killer,
0.1
mfd
+120
ohm
300
V
JAPAN
A*5171606000
Spark
Killer,
0.01
mfd
125
V
U.S.A.
A*5052916000
Spark
Killer,
0.01
mfd
125
V
CANADA
A*5052913000
Spark
Killer,
0.1
mfd
+120
ohm
300
V
GENERAL
EXPORT
4*5052917000
=
Spark
Killer,
0.01
mfd
450
V
EUROPE,
U.K.,
AUSTRALIA
18
BX-500/BX-300
PARTS
LOCATION-5
10
9
BTBM3x8
BM3x8
8
7
TA-1083
Parts
marked
with
*require
longer
delivery
time
than
regular
parts.
REF.
NO.
PARTS
NO.
DESCRIPTION
|
REMARKS
5
-
1
*5128102000
Pin
Jack,
4P(w/DIN)
5
-
2
*5552438000
Cover,
Top
5
-
3
*5552444000
_
—Pane!,
Rear
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
*5552445000
_
=—s—
Panel,
Rear
EUROPE,
U.K.,
AUSTRALIA
5
-
4
*6553330000
Heat
Sink
5
-
5
5122399000
Terminal,
4P
Push
5
-
6
*5534661000
Strain
Relief,
AC
Power
Cord
U.K.
*5534663000
Strain
Relief,
AC
Power
Cord
AUSTRALIA
*6534660000
=
Strain
Relief,
AC
Power
Cord
All
except
U.K.,
AUSTRALIA
5
-
7
4
5128034000
Cord,
AC
Power
JAPAN,
GENERAL
EXPORT
4,
5128075000
Cord,
AC
Power
U.S.A.,
CANADA
4*5128018000
Cord,
AC
Power
EUROPE
4*5128094000
Cord,
AC
Power
EUROPE
45128047000
Cord,
AC
Power
U.K.
4*5128031000
Cord,
AC
Power
AUSTRALIA
5
-
8
4,
5122397000
=
Socket,
AC
Outlet
JAPAN,
U.S.A.,
CANADA,
GENERAL
EXPORT
5-9
*5128103000
Pin
Jack,
4P
5
-10
*5045407100
Terminal,
GND
19
BX-500/BX-300
7
PC
BOARDS
AND
PARTS
LIST
(BX-500)
PC
Boards
shown
viewed
from
foil
side.
MAIN
PCB
ASSY
P1013
20
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