Teac BX-550 User manual

ag
TEAC.
SERVICE MANUAL
BX-550
High Speed DC Integrated Amplifier
BX-330
DC Integrated Amplifier
The BX-550B and the BX-330B have a black finish; otherwise, they are the same as the BX-550 and the BX-330.
CONTENTS
1. Specifications and service data... 1. 1 ee ce eee eee ee ee eee 2
2. Voltage conversion... we ce ee ee ee ee eee et ene 3
3: Main parts locations occ ice eee ee ee we ee eee eee eas 4
UO 0110030111 ae a ee Re ae 5
5. Block and level diagram 2... 1... ee ee ee ee nee 8
6. Parts location and parts list (BX-550) 2... . ee eee 10
7. Parts location and parts list (BX-330) . 2.0... 1 eee et ees 18
8. PC boards and parts list (BX-550) 2... ee eee eee 27
9. PC boards and parts list (BX-330) . 2... ee ee ee eee 34
CAUTION
AParts 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: October, 1980 5704007100
ol I

BX-550/BX-330
1
SPECIFICATIONS AND SERVICE DATA
e Improvements may result in features or specifications changing without notice.
SPECIFICATIONS
Input Sensitivity
PNONO MC
PHONO MM
TUNER, AUX
TAPE 1,2
Rated Output Voltage
TAPE REC 1, 2
Rated Output Power
(Both channels driven, Distortion 0.1%,
Impedance 8 ohms, 1 kHz)
Required Speaker Impedance
SPEAKERS selector in position A or B
Dimensions
Width x Height x Depth
Weight
Power Requirements
SERVICE DATA
BX-550 BX-330
50 pV/33 ohms 50 uV/15 ohms
2.5 mV/47 k ohms 2.5 mV/47 k ohms
150 mV/10 k ohms 150 mV/10 k ohms
150 mV/10 k ohms 150 mV/10 k ohms
150 mV/2.2 k ohms 150 mV/2.2 k ohms
55W+55W 35W+35W
8 ~ 16 ohms 8 ~ 16 ohms
410 x 140 x 320 (mm)
(16-1/8" x 5-1/2" x 12-5/8”)
9 kg (19-13/16 Ibs) net
410 x 140 x 320 (mm)
(16-1/8" x 5-1/2” x 12-5/8"}
7.5 kg (16-9/16 Ibs) net
Voltage Power Consumption (W)
(V) (Hz) BX-550 BX-330
GENERAL EXPORT 100, 117, 220, 240 50/60 | 100i] SY
PEUROPE. 220 2 0 100 | 8
U.K.,AUSTRALIA, [| 240s | SC se | St“ s|
U.S.A., CANADA Rs |
The power requirements for products distributed in the U.K., Australia, Canada and the United States
and certain other areas in Europe are not adjustable.
Power Muting Time 3 ~ 8 Seconds LOUDNESS Control
— AUX Section —— Output: 150 mV
TONE Controls 1kHz: 0 dB (reference)
Input: 7 mV + 3 dB 100 Hz: +8dB+1dB
Output: 1V 20 kHz: +5 dB +1dB
MUTING Circuit (BX-550)
Output: MUTING OUT, 10 V at 1 kHz
BASS: FLAT
TREBLE:
FLAT
OdB:1dB
|
OdB
(Ref.)
0dB+1dB
MUTING
IN,
0.9
V
+2
dB
BASS: MAX LOW CUT Filter (BX-550)
+7dB+ dB+1dB +7dB+1dB
TREBLE: MAX ical : Output: LOW CUT OUT, 10 V at 20 Hz
BASS: MIN | oae148 | LOW CUT IN, 7V+1dB
-7dB+1dB | 0dB+1dB -7dB+1dB Z
TREBLE: MIN al TONE OUT Circuit (BX-550)
Harmonic Distortion a) Frequency Response
Output: 55 W (BX-550), 35 W (BX-330) TONE: OUT, VOLUME Control: MAX
20 Hz: Less than 0.01% Output: 1 V at 1 kHz (reference)
1kHz:
Less
than
0.008%
10
Hz:
=
dB
20
kHz:
Less
than
0.1%
_
+0
Maas 100 kHz: *° dB
More
than
42 dB
(ratio)
at
1
kHz.
b)
Harmonic
Distortion
Noise
Level
20
Hz:
Less
than
0.01%
VOLUME
Contro!:
MAX,
INPUT:
Shorted
1kHz:
Less
than
0.008%
Less
than
560
zV
(-65
dB),
Weighted
20
kHz:
Less
than
0.1%
Damping Factor
43 or more at 1 kHz, 82
21 or more at 20 kHz, 82
c) Noise Level
Less than 320 uV (-70 dB), Weighted

— Phono MM Section —
SOURCE
Selector:
PHONO-MM,
VOLUME
Control:
MIN
input Level
input:
1
kHz/2.5
mV
(Signal
source
impedance:
3.32)
REC
QUT:
150
mV
+3
dB
Frequency Response
+19 dB +1dB
+13.1 dB +0.5 dB
0 dB (reference)
-13.7 dB +0.5 dB
~19.6 dB +1 dB
20 Hz:
100 Hz:
1 kHz:
10 kHz:
20 kHz:
Harmonic Distortion
Output: 7V
20 Hz: Less than 0.01%
1kHz: Less than 0.005%
20 kHz: Less than 0.1%
Noise Level
Input: 3.30 terminate
Less
than
48
xV
(approx.
-86
dB),
Weighted
BX-550/8X-330
— Phono MC Section —— ;
SOURCE Selector: PHONO MC, VOLUME Control: MIN
Input Level
Input: 1kHz/50 pV (Signal source impedance: 3.32)
REC OUT: 150 mV +3 dB
Frequency Response
20Hz: +19dB+1dB
1 kHz: 0O4dB (reference)
20 kHz: -19dB+1dB
Harmonic Distortion
REC OUT: 1V
20 Hz: Less than 0.1%
1kHz: Less than 0.1%
20 kHz: Less than 0.7%
Noise Level
Input: 3.320 terminate
Less than 250 uV (approx. -72 dB), Weighted
2 VOLTAGE CONVERSION
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.
2.
Remove
the
top
and
side
metal
cover
unit
by
removing
the
screws
from
each
side.
Locate
the
voltage
selector
plug
on
the
left
side
of
the
BX-550/
BX-330.
Remove
the
plug
by
pulling
it
out,
then
re-insert
it
so
that
the
arrow
on
the
plug
exactly
fines
up
with
the
white
line
that
in-
dicates
the
appropriate
voltage.
. Replace the cover.
Fig. 1

BX-550/BX-330
3 PARTS LOCATION
BX-550
R139 TP-| TP-2 TP-6 R239
TP-5 | TP-3 | TP-4
IN/OUTPUT PCB Assy
MAIN PCB Assy
Power Transformer R133
R233
Voltage Selector
SW PCB Assy
METER AMPL PCB Assy
VOLUME PCB Assy
ee 3 a
R726/R826 TONE CON AMPL PCB Assy
R728
BX-330
RI3O TP-1 TP-2 TP-G6 R230
TP-5 | TP-3 | TP-4 IN/OUTPUT PCB Assy
MAIN PCB Assy
Power
Transformer
Sia
R224
Voltage Selector
SW PCB Assy
LED PCB-I3! Assy
VOLUME PCB Assy
R903 R904 TONE CON AMPL PCB Assy

BX-550/B8X-330
4 ADJUSTMENTS
4-1
BEFORE
ADJUSTMENT
(Do
not
apply
AC
power)
1.
Set
the
VOLUME
control
to
MIN
and
the
SPEAKERS
selector
to
OFF.
2.
Set
the
semi-fixed
variable
resistors
to
the
following
positions.
R133/R233
(BX-550)
R124/R224
(BX-330)
R139/R239 (8X-580)| Be te ata Gta
R130/R230 (BX-330) . whore
| At the center position
4-2.
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-550)
or
R124/R224
(BX-330)
so
that
the
voltmeter
indicates
0
V
+50
mV
DC.
Note:
A
differential
voltmeter
is
preferable.
DC
VOLTMETER
Bie
ee
i)
.
Fig. 2

BX-550/BX-330
4-3
IDLING
CURRENT
ADJUSTMENT
.
Connect
the
DC
voltmeter
between
T.P-1
and
T.P-2
(L-ch).
.
Adjust
R139
(BX-550)
or
R130
(BX-330)
so
that
the
DC
volt-
meter indicates approx. 100 mV.
.
After
adjusting
R139
(BX-550)
or
R130
(BX-330),
allow
30
seconds for the amp to warm up.
. Readjust R139 (BX-550) or R130 (BX-330) so that the DC
voltmeter indicates 20~30 mV. (Idling current 30~45 mA).
.
Connect
the
DC
voltmeter
between
T.P-4
and
T.P-3
(R-ch)
.
Repeat
procedures
1 to
4
above
and
adjust
R239
(BX-550)
or
R230 (BX-330).
NOTE: 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 ampli-
fier, thereby causing a short. Use the oscilloscope in an
ungrounded state.
Oem me meme ene =
PEAS.
DC VOLTMETER
20~ l0Omv
30mvV
Fig. 3
4-4-1
POWER
OUTPUT
METER
ADJUSTMENT
(BX-550)
Refer
to
Fig.
4.
1.
2.
Pw
oan n uo
Connect
the
AC
voltmeter
to
SPEAKERS
terminal
A.
Set
the
SPEAKERS
selector
to
A
and
the
SOURCE
selector
to
AUX.
. Set the VOLUME control to MAX.
.
Apply
a
1-kHz
input
signal
to
provide
an
output
power
of
1
W
(approx. 2.83 Vrms) to the AUX terminals.
.
Adjust
R726
so
that
the
Power
Output
Meters
indicate
1W.
.
Connect
the
DC
voltmeter
between
pin
8
and
pin
2
of
U701.
.
Adjust
R826
so
that
the
DC
voltmeter
indicates
OV.
.
Set
the
VOLUME
control
to
MIN.
.
Connect
the
DC
voltmeter
between
the
collector
of
0702
and
GND.
.
Adjust
R728
so
that
the
DC
voltmeter
indicates
OV.
ie
Faaion)
of ns
e
4-4-2 LED METER ADJUSTMENT (BX-330)
Refer to Fig. 5.
1.
2.
3.
4.
Connect the AC voltmeter to SPEAKERS terminal A.
Set the SPEAKERS selector to A and the SOURCE efector to
AUX.
Set the VOLUME control to MAX.
Apply a 1-kHz input signal to provide an output pover of 1W
(approx. 2.83 Vrms) to the AUX terminal.
. Adjust R903 (L-ch)/R904 (R-ch) so that the POWER LEVEL
meter just begins to indicate 3W.

| BX-550/BX-330
ROSAS Ae ts :
EAC
5210017400
1P-S30-HB
a
Fig. 4
R904 R903
LED
PCB-I3t
ait
ahaRal
Vatatphntnte
Fig. 5

BX-550
[TAPE COPY |]
TAPE je?
SOURCE
5 BLOCK AND LEVEL DIAGRAM
BX-550
WG-0
OTAPE 2©1
[wooe] [COUDNESS] © [VOLUME
O MONO _,
SOURCE
STEREO
os
~O0—-O- O--O
TAPE
2
REV_,
!
FLAT
ioe
cS
AMPL.
—
in o
(2)
é
Ort IN
2)
(5)
H
(TREBLE)
oO!
o
o BALANCE
Reh Reh
TSPEAKERS 3
MUTING
]
(7)
(9)
@
:
POWER AMPL.
out
068
ave
is
=208,
©
PROTECTION
Ok
a
CIRCUIT
o
(6)
a
+25v
oc —15V
AC
IN
POWER
+12v
SUPPLY Suay
+47V MAX
— 2Vv
+15
—47V MAX
R ch-e-—o—_“A
METER AMPL, WATTS METER
VOLTAGE RESPONSE (dB )
1ooy +40
80
“|
C
SPEAKERS]
ved
SSwi2tv),
8h
love +20
.
POWER
AMPL.
|
G=26¢8
;
al
i
O.25W(1.4V),
19
eo
T
AMPL
1
FLAN
.
mo
te
=
18
6B
200-4
a (13Omv)
100 my -20 mi
40
-30
ba
EQ
AMPL.
G= 35.548
10 mv —40
44-50
2
1 my ~60
4009 = -79 -— MC AMPL.
wo ©
100 pv -80
50
-90

BX-330
(10) TAPE COPY
TAPE! 2 Sa o
ANY o SOURCE
T 1 oTAPE2 | TAPE 2
i LO
Tx,
OUT
BX-330
TONE AMPL.
POWER AMPL.
PROTECTION
CIRCUIT
+40V MAX
—40V MAX
+ 16V
poe 1S
POWER
SUPPLY
-—+ +B6V
+15V
a+ 8
LED METER
ie
METER AMPL.
VOLTAGE RESPONSE (dB)
100Vv +40
80
401 430 7
| RS
20 35wit67V), 6
lov a +20
POWER AMPL.
4
+10
G=
25.7
dB
_ PHONES
hod
ce]
O.25W(14V),
160
—_
FLAT AMPL.
id =10 6= 16.443
200
100 my, -20 (150 mv}
307
7) -30
“| EQ AMPL.
G= 35.5 68
iomvz| -40 = (2)
4) -50
24
Imv— = 60
id MC AMPL,
4005-79 }— G= 34 4B
2004
1oopv 1 ~80
50
-90 (80 pv)

Bx-550
10
—=—
wot
NO Oh
oo
“11
“12
6 PARTS LOCATION AND PARTS LIST (BX-550)
PARTS LOCATION-1
Round Washer Head
M4x6 (BLK Ni)
PARTS NO.
*5800009900
*5552438000
*5534730000
*5800017700
*5800087700
*5800087800
*5800078800
5800087300
5800087400
*5800078700
5800078900
5800079000
*5800074800
5800074500
5800074600
5800074300
5800074400
5800009600
5800018300
*5124022000
DESCRIPTION
Cover, Top
Cover, Top
Button, Push; A
Button, Push; A
Parts marked with *require longer delivery time than regular parts.
REMARKS
Escutcheon Assy, Meter; B
Escutcheon Assy, Meter; BB
Escutcheon, LED
Panel Assy, Front; B
Panel Assy, Front; BB
Cover, Meter
Knob, VR
Knob, VR (B)
Lens, LED
Knob, Selector
Knob, Selector (B)
Knob, VR; S
Knob, VR; S (B)
Knob, Lever SW
Knob, Lever SW
Jack, PHONES
BX-550
BX-550B
BX-550
BX-550B
BX-550 Part of 1 - 5
BX-550B Part of 1 -
BX-550
BX-550B
Partof1 - 3
BX-550
BX-550B
BX-550
BX-550B
BX-550
BX-550B
BX-550
BX-5508
BX-550B

BX-550
PARTS LOCATION-2
BSA BSA BSA
M3x6 M3x6 M3x6
Parts marked with *require longer delivery time than regular parts.
PARTS NO. DESCRIPTION REMARKS
[A]: AUSTRALIA [L]: LIMITED AREA
2-1 5534730000 Button, Push; A BX-550
5800017700 Button, Push; A BX-550B
2-2 *5200017400 PCB-111 Assy, METER AMPL [GE, E, UK, A]
*5200017410 PCB-111 Assy, METER AMPL [US, C]
2-3 *5296001300 Meter, Wattage Partof2 - 2
2-4 *5800078300 Chassis, Front
2-5 *5282406402 Var. Res., 100k92(B) x 2 Part of 3 - 15
2-6 *5800082000 Mask, Var, Res.
2-7 *5301202600 Switch, Rotary (Slide type)
2-8 *5534432000 Foot
2-9 *5124022000 Jack, PHONES
2-10 *5301202700 Switch, Rotary Partof3 -21
2-11
*5150243000
Var.
Res.,
50k92.{B)
x
2
Partof3
-21
2-12 *§800009600 Knob, Lever SW BX-550
*5800018300 Knob, Lever SW BX-550B
2 *5282009302 Var. Res., 300k2.(B) Partof3 - 13
[US]: U.S.A. [C]: CANADA GENERAL EXPORT (E]: EUROPE

BxX-550 |
PARTS LOCATION-3
asher
Head M3x6
10
23 22 2l 20 I9 18 1716 15 14 13 9 12 41
PTT PTT
M3x6 M3x6
PTT
M3x6
12

Ww
Cas |
WWWW w
wo
Ww wo
'
= coon nN Oo F&F WN
ou
—_ N=
‘
= ao ao A&W
- 16
-17
- 18
-19
- 20
- 21
- 22
-23
-24
- 25
- 26
-27
- 28
- 29
- 30
-31
-32
PARTS NO.
*5 122399000
*5553331000
*5200016200
*§200016210
*5300907600
*5200015400
*5200015410
*5800089700
*5800089800
*5302100300
*5553329000
*5122165000
*5 122164000
*5122171000
*5200017600
*5200017610
*5122170000
*5200017000
*5200017010
*5200018500
*5 200018510
*5800075300
*5134113000
*5555786000
*5200017400
*5200017410
*5200016400
*5200016410
*5041234000
*5142096000
A 5142115000
4 5142190000
4 5142213000
*5800078400
*5800074700
*5 786360500
5134111000
5134112000
5300019400
5052910000
5052911000
5267702500
5292002500
*5133014000
PPB BBP
*5133015000
4 5152224000
A 5320002700
A 5320002800
*6552446000
*5552447000
[US] :
[A]:
U.S.A.
AUSTRALIA
BX-550
Parts marked with *require longer delivery time than regular parts.
DESCRIPTION
Terminal, Push; 4P
Heatsink, A2
PCB-104 Assy, MAIN
PCB-104 Assy, MAIN
Switch, Slide; 6 - 4
PCB-118 Assy, IN/OUTPUT
PCB-118 Assy, IN/OUTPUT
Panel, Rear
Panel, Rear
Wire, Flexible
Chassis, C;R
Connector Socket, 3P (WHT)
Connector Socket, 2P (WHT)
Connector Socket, 9P (WHT)
PCB-150 Assy, SW
PCB-150 Assy, SW
Connector Socket, 8P (WHT)
PCB-123 Assy, VR
PCB-123 Assy, VR
PCB Assy, MUTING SW
PCB Assy, MUTING SW
Bracket, Muting SW
Switch, Push; 2 - 2
Support, PCB; A
PCB-111 Assy, METER AMPL
PCB-111 Assy, METER AMPL
PCB-105 Assy, TONE CON AMPL
PCB-105 Assy, TONE CON AMPL
Holder, Fuse
Holder, Fuse
Fuse, 54 250V
Fuse, T2.5A 250V
Fuse, 5A 250V
Bracket, Voltage Selector
Bar, Joint; Power Switch
R-pin, 05
Switch, Push; Power
Switch, Push; Power
Switch, Push; Power
Spark Killer, 0.033uF + 1202/125V
Spark Killer, 0.033uF + 1202/250V
Spark Killer, 0.0047nF/250V
Spark Killer, 0.01nF + 3002
Plug, Voltage Selector
Socket, Voltage Selector
Transformer, Power
Transformer, Power
Transformer, Power
Chassis, L; Transformer Support
Chassis, Bottom
[C]: CANADA
{L]:
[GE]: GENERAL EXPORT
LIMITED AREA
REMARKS
[GE, E, UK, A]
[US, C]
Partof3 - 3
(GE, E, UK, A]
(US, C}
[US, C, GE]
{€, UK, Aj
(GE, E, UK, A]
[US, C}
[GE, E, UK, A]
[US, C}
[GE, E, UK, A]
[US, C]
Partof3 - 16
[GE, E, UK, A]
[us, C]
(GE, E, UK, A]
[US, C]
(US, C, GE]
[E, UK, A]
[US, C]
[E, UK, A]
[GE]
[US, C]
[E, UK, Al
{US]
[C]
[A, E, UK]
{GE]
[GE]
[GE}
[US, C}
[GE]
[E, UK, A]
[E]: EUROPE [UK]: U.K.
13

BxX-550
14
da ADL AHALA
ADA
oOo ano
“11
-12
PARTS NO.
*5122399000
*5552447000
*5555846000
*5553334000
*5200016200
*5200016210
*5128103000
*5128102000
*5200015400
*§200015410
*5800089700
*5800089800
*5045407100
*5786700600
*5800078600
[US]: U.S.A.
(A]:
AUSTRALIA
PARTS LOCATION-4
Parts marked with *require longer delivery time than regular parts.
DESCRIPTION
Terminal, Push; 4P
Chassis, Bottom
Sheet, Insulating
Support, Transistor
PCB-104 Assy, MAIN
PCB-104 Assy, MAIN
Jack, Pin; 4P
Jack Assy, Pin; 4P (w/DIN)
PCB-118 Assy, IN/OUTPUT
PCB-118 Assy, IN/OUTPUT
Panel, Rear
Panel, Rear
Terminal, GND
Lug, GND
Bracket, Meter
CANADA [GE]: GENERAL EXPORT
[L]: LIMITED AREA
[C] :
REMARKS
[GE, E, UK, Al
(US, C}
Partof4 - 5
Partof4 - 8
IGE, E, UK, A]
[US, C]
[US, C, GE}
[E, UK, A]
{E]: EUROPE [UK]: U.K.

oa ol an aca
agana»n
- 8
- 9
-10
-11
-12
PARTS NO.
*5128103000
*5128102000
*5800009900
*5552438000
*5553331000
*5122399000
*5534660000
*6534661000
4*5128047000
4 5128075000
A*5128094000
A\*5350008300
A\*5332010600
*5534432000
*5128103000
*5045407100
*§800089700
*5800089800
[US]: U.S.A.
[A]:
AUSTRALIA
PARTS LOCATION-5
6
7
B M3xl0 B M3xl0
(BLK Ni) (BLK Ni)
9
10
9
8
ae
B
M3x8(BLK
Ni)
PTT M3x6
BTB M3x8
(BLK Ni)
Parts marked with *require longer delivery time than regular parts.
DESCRIPTION
Jack, Pin; 4P
Jack Assy, Pin; 4P (w/DIN)
Cover, Top
Cover, Top
Heatsink, A2
Terminal, Push; 4P
Strain Relief, AC Power Cord
Strain Relief, AC Power Cord
Cord, AC Power
Cord, AC Power
Cord, AC Power
Cord, AC Power
Socket, AC Power
Foot
Jack, Pin; 4P
Terminal, GND
Panel, Rear
Panel, Rear
CANADA [GE]: GENERAL EXPORT
{L]: LIMITED AREA
[C]:
REMARKS
Partof4 - 8
Partof4 - 8
BX-550
BX-550B
[All except UK]
[UK]
[UK]
(US, C, GE}
{E]
[A]
(US, C, GE]
Partof4 - 5
[US, C, GE]
[E, UK, A]
{E]: EUROPE [UK]: U.K.
15

BX:5S0
PARTS LOCATION-6
RTB M3x8
RTB M3x8
Parts marked with *require longer delivery time than regular pats.
16
REF. NO.
204
6 - 2
6 - 3
6-4
6-5
6 -
6-7
6-8
6-9
6 -10
6-11
6 -12
6 -13
6 -14
PARTS NO.
*5800077600
*5800077700
*5800074800
*§200014800
*5200014810
*5122165000
*5800008200
*5800018000
*5800087700
*5800087800
*5800076300
*5800078 700
*§800077200
*5800077300
*5800078800
*5122167000
*5200017800
*5200017810
*5800074900
*5800075000
*5800075100
*5800075200
[US]: U.S.A.
[A]: AUSTRALIA
DESCRIPTION
Panel, Front; B
Panel, Front; B (B)
Lens, LED
PCB-129 Assy, LED
PCB-129 Assy, LED
Connector Socket, 2P (WHT)
Escutcheon, PW
Escutcheon, PW
Escutcheon Assy, Meter; B
Escutcheon Assy, Meter; BB
Escutcheon, B
Cover, Meter
Escutcheon, A
Escutcheon, A (B)
Escutcheon, LED
Connector Socket, 5P (WHT)
PCB-133 Assy, LED
PCB-133 Assy, LED
Escutcheon, SW (2PG)
Escutcheon, SW (2PB)
Escutcheon, SW (3PG)
Escutcheon, SW (3PB)
CANADA [GE]: GENERAL EXPORT
[L]: LIMITED AREA
[C] :
REMARKS
BX-550 Partof1 - 5
BX-550B Partofi - 5
Partof1 - 5
[GE, E, UK, A]
(US, C]
BX-550 Partof1 - 5
BX-550B Partof1 - 5
BX-550
BX-550B
Partof6 - 6
Partof6 - 6
BX-550 Partof6 - 6
BX-550B Partof6 - 6
Partof6 - 6
(GE, E, UK, A]
[US, C]
BX-550 Partof1 - 5
BX-550B Partof1 - 5
BX-550 Partof1 - 5
BX-550B Partof1 - 5
[E]: EUROPE [UK]:
U.K.

BX-550
PARTS LOCATION-7
BM3x6
12 3 4 5 6 7 8 9 iOll 12 [8
16 15 14 I3
PTT M3x6
Parts marked with *require longer delivery time than regular parts.
PARTS NO.
DESCRIPTION
REMARKS
7-1 5301202600 Switch, Rotary (Slide type)
7-2 *5300512300 Switch, Lever; 2 - 3 (NS) Partof7 - 5
7-3 *§300512100 Switch, Lever; 4 - 3 (NS) Partof7 - 5
7-4 *5300512200 Switch, Lever; 4 - 3 (S) Partof7 - 5
7-5 *5200017600 PCB-150 Assy, SW {GE, E, UK, AJ
*5200017610 PCB-150 Assy, SW [US, C]
7-6 *5200017000 PCB-123 Assy, VR [GE, E, UK, A]
*5200017010 PCB-123 Assy, VR [US, C]
7-7 *5282009302 Var, Res., 300k2 (B) Partof7 - 5
7 8 *5300511800 Switch, Lever; 2 - 2 (S) Partof7 - 5
7-9 *5150243000 Var, Res., 50k (B) x 2 Part of 7 -11
7-10 *5300511700 Switch, Lever; 2 - 2 (NS) Part of 7 -11
7-11 *5200016400 PCB-105 Assy, TONE CON AMPL (GE, E, UK, A]
*5200016410 PCB-105 Assy, TONE CON AMPL [US, C]
7-12 *5200017400 PCB-111 Assy, METER AMPL (GE, E, UK, A]
*5200017410 PCB-111 Assy, METER AMPL (US, C]
7-13 *5122222000 Connector Socket, 3P (BLK)
7-14 *5122281000 Connector Socket, 3P (RED)
7 -15 *5122170000 Connector Socket, 8P (WHT)
7 -16 *5122165000 Connector Socket, 3P (WHT)
7-17 *5122171000 Connector Socket, 9P (WHT)
7 -18 *5720026000 Seal, Fuse Capacity; 5A 250V [US, C, GE]
*5720026100 Seal, Fuse Capacity; T2.5A 250V [E, UK, A]
[US]: U.S.A, [(C]: CANADA [GE]: GENERAL EXPORT (E]: EUROPE [UK]: U.K.
[A]: AUSTRALIA [L]: LIMITED AREA
17

BX-330
1-1
1-2
1-
1-4
1-5
1-6
A itor7
1-8
1-9
1-10
1-11
1-12
1-13
18
7
PARTS
LOCATION
AND
PARTS
LIST
(BX-330)
Round Washer Head
M4x6 (BLK Ni)
PARTS NO.
*5800009900
*§552438000
*5534730000
*5800017700
*5800087500
*5800087600
*§800074800
*5800075400
*5800078700
5800087100
5800087200
5800078900
5800079000
*5800074800
5800074500
5800074600
5800009600
5800018300
5800074300
5800074400
*5124022000
DESCRIPTION
Cover, Top
Cover, Top
Button, Push; A
Button, Push; A
Escutcheon Assy, Meter; A
Escutcheon Assy, Meter; AB
Lens, LED
Panel, Meter
Cover, Meter
Panel Assy, Front; A
Panel Assy, Front; AB
Knob, VR
Knob, VR; B
Lens, LED
Knob, Selector
Knob, Selector; (B)
Knob, Lever SW
Knob, Lever SW
Knob, VR ;S
Knob, VR; S(B)
Jack, PHONES
PARTS LOCATION-1
Parts marked with *require longer delivery time than regular parts.
BX-330
BX-330B
BX-330
BX-330B
BX-330
BX-330B
Part of 1
Part of 1
Part of 1
BX-330
BX-330B
BX-330
BX-330B
BX-330
BX-330B
BX-330
BX-330B
BX-330
BX-330B
REMARKS
WWW

BX-330
PARTS LOCATION-2
BSA BSA BSA
M3x6 M3x6 M3x6
Parts marked with *require longer delivery time than regular parts.
PARTS NO. DESCRIPTION REMARKS
*5534730000 Button, Push; A BX-330
NO
'
_
NN NY NNNNN
N-0O © ANOGH WwW N oy
*5800017700
*6200015800
*5200015810
*6800078300
*5282406402
*5800082000
5301202600
*§534432000
5282009302
5800009600
5800018300
*5150243000
*5301202700
*5124022000
{US]: U.S.A.
[A]:
Button, Push; A
PCB-131 Assy, LED
PCB-131 Assy, LED
Chassis, Front
Var, Res., 100k92.(B) x 2
Mask, Var. Res.
Switch, Rotary (Slide type)
Foot
Var. Res., 300k2(B)
Knob, Lever SW
Knob, Lever SW
Var. Res., 50k20(B) x 2
Switch, Rotary
Jack, PHONES
{[C]: CANADA [GE]: GENERAL EXPORT
AUSTRALIA [L]: LIMITED AREA
BX-330B
{GE, E, UK, A]
[US, C]
Part of 3 - 14
Part of 3-13
BX-330
BX-330B
Part of 3 -17
Part of 3 - 17
[E]: EUROPE (UK}:
19

_8x330
PARTS LOCATION-3
3|
30
29
27
B M3xi0
26
25
24
23
B M3x6
22
2
20 I9 18 9 1716 10 I5 10 14 13 12 1! 10
PTT PTT PTT
M3x6 M3x6 M3x6
20