Luxman L-400 User manual

SERVICE
MANUAL
DUO-BETA CIRCUIT STEREO
INTEGRATED AMPLIFIER _

oor-1
Contents
Block “Diaeram “a= —o-se sos eS L
Adjustmétut Procédurés <2--s4-— =a 2
Packing Material Parts List --------------------- 2
Exploded: View “#62=—=se=—s- Sea ee 3
Exploded View Parts List --~------~----~------------ 4-5
Pre Main, PCB Parts List: s“-----==--=<---<<=4+--== eae |
Function SW PCB Parts List ---------------~------- 7
Tone Control PCB Parts List --------~----------—- 8
VR Contecol PCB Parte List: ==-4S-s--=--=S-=S->—=-— 8
HD Phone PCB Parts List ~--~=-—--=--------=-==-~-- 8
Balance Control PCB Parts List ---~-------------- 8
MC: SW. PCR Parts: List. --==+-=-===—=——=46-S-4-4-5> 8
TG: (CPR) Handling Guide. So---Sessresresor is 9
Schematic Diagram ------~~---~-----~---~----------- 10 - 11
Specifications ---------------------------------—- 12
Block Diagram
B2
VOLUME BALANCE
PHONO © esc
—Q AMP <i
[cow reo]
LOUDNESS
MC MM
SELECTOR
ic) A SPEAKER
[O] B SPEAKER
‘i HEAD PHONE
eT
m
@ > oe. 7)
4 2
m @ ad m
a

Adjustment
Procedures
DC Voltmeter
Front
Bias
(Idle)
Current
Adjustment
1.
Connect
a
DC
Voltmeter
in
between
TP1
and
TP2
on
L-ch
and
or
TP4
and
TP3
on
R-ch,
Making
TP1
and
TP4
positive
respectively.
2.
Adjust
the
RV10la
and
RV101b
to
obtain
15mV
+
5mV
reading
on
the
meter.
Packing
Material
Parts
List
|
207
Symbol
No.
|
Stock
No.
_
RSet
APEtoe
201
68
R64248
FO1
|
Owner's
Manual
202
56B40230G21
| Sack,
Poly
203
56C56637F01
|
Pkg,Tray
204
56A58581F01
|
Pad,
Pkg
205
56A57423F04
|
Pad,
Pkg
206
56B40230G23
|
Sack,Poly
207
56C53420F42
|
Carton,
Pkg
208
56C53420F26
|
Carton,Bulk
Pkg
—2—

0O0r-1
=
—
>
fa
Ld
a
ro)
J
Q.
x
fy

Exploded View Parts List
Stock No.
Description
toast
Maa Nwowok Bw
PE OTOO sm
t
~
‘i
a
one)
Pi Om bao o NNWRFwWURS
MworurnrPe eR REND
Hj
|
ot
WNHNNMWWHERU
Fae a aaa Ka
PEED
wor
!
we
|
~
ies Bs
“NN
|
DAMON UN ONS SO
as se
~
‘i
>
11
12
13
14
15
16
17
18
19
20
20-1
21
21-1
22
22-1
23
23-1
24
24-1
25
25-1
26
27
28
29
30
31
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
07B56633FO1
01V58700F23
40T56667FOL
40T56653F0L
09T57203F01
097T57203F02
O9TS1101FO1
29441814601
07B56624F01
451T57373F01
27056631F01
07A57048F01
43A56651F01
91A57951F01
65T56669FO1
65T56669F02
40T57371F01
07C56632F01
25T56591 FOL
07B57267FOL
07A56634F01
09T51828F01
65T52486F12
43A51798F02
75A50578F07
01V58100F06
18156663F01
01V58100F95
40T56664F0L
01V58100F08
18T56666F01
01V58100F09
09T56010F01
01V58100F10
18T56665FO1
01V58600F50
40T57372F01
07C56668F01
07R51146F01.
15€56636F09
28T55335F01
43B41625J02
09T51075F01
07A57406F0L
40T57580F01
08T57437F09
36B56627F01
36B56626F01
36A56625F01
36A56639F02
36A56640F01
36A56640F01
36A57180F01
15€56629F01
15C56630FO1
75A52969F01
14853018F42
64C056623F05
07B56624F02
61A56641F01
43A56628F01
07B56643F0L
43A56644F01
Bkt,R
Ass'y,Par M/A PCB
SW,Push SUN73
SW, Push SUN33
Plate,Phone 2P
Plate,Phone 6P
Terminal,SP
Lug
Frame,Panel Side-R
Wire,Flex SWR1198
Chassis, Front
Bkt , Phones
Bushing, Rubber
Filter ,1035
Lamp, Pilot
Lamp,Pilot Grn
SW, Push SUFR1
Bkt,Trans
Trans, Power
Bkt, Trans
Bkt , Fuse
Holder,Fuse
Holder, Fuse
Fuse, Semko
Spacer, Fuse
Pad, Cushion
Ass'y,Tone Cont.PCB
VR,Rotary 50KCx2
Ass'y,Function SW PCB
SW,Rotary SRZ
Ass'y,VR Cont .PCB
VR,Rotary 250KW
Ass'y,HD Phone PCB
Jack,HD Phone M-1669
Ass'y,Blance Cont .PCB
VR,Rotary 100KBx2
Ass'y,MC SW PCB
SW,Slide SSR4235
Heat Sink
Support,TR
Cover ,Rear
Plus,AC Cord
Support ,Cord
Terminal ,GND
Bkt , PCB
SW, Power
Cap,MP 0.01
Knob ,Rotary VR C
Knob,Rotary VR B
Knob,Rotary VR A
Knob,Push 1171
Knob,Push 1189
Knob, Push 1189
Knob, Push B
Cover, Top
Cover, Bottom
Pad, Trannleg
Insulator,50x5
Panel, Front
Frame,Panel Side
Crystal, Indicator
Spacer, Power
Frame,Knob 1140
Spacer,Frame Knob
—4—
(SW104-110)
(SW101-103)
(E101)
(£102,103)
(E104)
(S701)
(AUX, Tuner)
(Phono)
(S701)
(RV201, 203)
(S301)
(RV601)
(HD)
(RV401)
(S-701)

00v-1
io]
1opttbtd#4
nu
PETER ET PORT Pe eS
NYVFFONANYNNF WUD UNO U
H
H
F
H
c-
E
B
B
B
rorotd
WWh
WOAQAQ PLP SFP
Poe Ae eT
aa
'
eer is Wes Ts Gs
BFADRFPRENEWNNNUUY
~~
i
i)
™
T
No
Stock No.
AC OUTLET
——
07A56645F01
07A56648F01
07C56907F01
07B56646F01
07C56647F01
07A57407F01
61A56649F01
43A56650F01
61A56642F01
03844205601
03844205601
03C40014G04
03S40036U02
04840072616
03C42723U01
03844205602
04840072616
03844205651
03840012641
03S844205G01
03C40014G04
03S40036U01
03844205601
03844205601
03844205603
29C41045P03
03844205G01
03840011632
04840070605
04S40071G01
03840012628
29A737272-A
03844205601
04840072616
03844205602
03C42723U01
03844205616
03S40036U01
03844205638
03844205602
03844205625
03C40014G04
09T57066F01
Description
Frame,Knob 1156
Frame , Knob
Frame,Knob 1153
Frame,Knob 1154
Frame,Knob 1155
Frame ,Knob 1163
Filter, Lamp
Spacer, Lamp
Crystal, Indicator
Scr,T-Tite M3x6
Ser,T-Tite M3x6
Ser,Mch .M3x6
Scr,T-Tite M3x8
Wsr, T.L.M3
Scr,Cup .M3x6
Scer,T-Tite M3x6
Wsr, T.L.M3
Scr,T-Tite M4x8
Scr, Tpg.M3x8
Scr,T-Tite M3x6
Ser,Mch .M3x6
Ser,T-Tite M4x8
Ser,T-Tite M3x6
Ser,T-Tite M3x6
Scr,T-Tite M3x8
Lug,W.Around
Scr,T-Tite M3x6
Ser,Mch M3x12
Wsr, 3.3x8x0.5
Wsr, 3.1x5.9x0.7
Scr, Tpg.M3x8
Lug,W.Around
Ser,T-Tite M3x6
Wsr,T.L. M3
Ser,T-Tite M3x6
Scr,T-Tite M3x6
Scr,T-Tite M3x6
Scr,T-Tite M4x8
Ser,T-Tite M3x6
Ser,T-Tite M3x6
Ser,T-Tite M4x10
Scr ,M3x6
Outlet ,AC S2-724B-04

Pre-Main
AMP
PCB
Parts
List
CCWK-TeXxX
@vdee2osto!
Description
L
$W101-103]_
SW104-110
40T56653F01
40T56667F01
SUN33
SUN73
(Terminal)
09T57203F01
09T57203F02
09T57203F02
_[09T51101F01
Plate, Phone
Plate, Phone
Plate, Phone
Terminal SP
2P
6P
6P
Stock No.
L-400
Description
(Variable Resistor)
RV101la,b
18C42061528
470-B
24T51105F02
Choke
65T57086F09
65T57086F09
3A 250V
3A 250V
~ [51T52153FO1
NJM2043D-D
~ [48T53430F01
48S43525F02
48843525F02
48843525F02
48T56658F01
48843525F02
48T51118F01
48T56657FO1
48T56660F03
48T56659F03
48T47682F02
48T57132F03
48157131F03
48T51539FOL
48T47682F02
48843525F02
28A979G
2SC1815Y
2SC1815Y
2SC1815Y
2SC1904B ,V
2SC1815Y
2SALOLSY
2SA899B ,V
28C2824 OY
[2SA1184 OY
2SC1845FA
2SC3181 OR
25A1264 OR
2SK117Y, FET
2SC1845FA
2SC1815Y
-J09T51410F01
{09T51410F01
Holder
Holder
48T52741F54
48T52741F54
48T51117F01
48T51117F01
48T51117F01
48T51117F01
48T40955T01
48T52741F62
48T51117F01
48T44992F01
48T52741F59
48T44992F01
48T44992F01
48T51115F02
HZ18-3L Zener
HZ18-3L Zener
181553
181553
181553
181553
TLR124 Red LED
HZ24-2L Zener
181553
D135D
HZ22-2L Zener
DS1i35D
DS135D
$3V20

o0r-1
Stock No.
L-400
Description
48T51115F02
48T51115F02
48T51115F02
$3V20
$3V20
$3V20
08T42081U01
23T00030L38
23T44501P27
08840656F22
08840656F15
23T00029F54
23T00029F54
23T43197F17
08S40656F22
08841442F10
08841442F21
08C42195G620
23T44501P08
08S41442F06
23S41198U38
08C42195G15
23T00030L43
08T55119F03
08S41442F05
08S841442F05
08S40656F01
08S841442F21
08S40656FOL
23841198038
23T00030141
23T00030L28
23T00030L39
23T00030L40
23T56654F01
231T56654F01
23T50030F16
23T50030F16
23T50030F16
150pF 125V
0.0022uF
47uF 16V
47uF 25V
0.047uF
0.056yF
0.015uF
220uF 25V
220uF =. 25V
4.7uF 50V
0.056uF
0 .0056uF
0.047uF
47pF -125V
3.3uF 25V
0.0027uF
LOOuF 63V
33pF 125V
100uF 1OV
3pF 50V
0.0022uF
0.0022uF
0.001uF
0.047uF
0 .001uF
100uF
47uF
22uF
47uF
47uF
10000uF
10000uF
Function SW PCB Parts List
Symbol
No.
Stock No.
L-400
(Switch)
Description
$301
(Capacitor)
40T56664F01
Rotary,SRZ
C301a,b
C302a,b
(Resistor)
23T44501P06
23T44501P03
2.2uF LR 35V El
0.33uF LR 50V EL
R301a,b
R302a,b
06844594P30| 470K
06844594P30| 470K
1/4W Rd
1/4W Rd
Description
06S44593P37
06844593P57
06S44594P38
06S44594P38
06S44594P38
06S44594P38
06S44594P38
06S44594P38
06S44593P75
06S844593P75
06S844593P89
06S40151T36
06S44594P36
06844594P36
06S44593P49
06S844593P49
06T55177F73
06S44594P22
06S844594P08
06S44593P87
06S44593P57
06844593P87
06S44594P06
06S44593P99
06S44593P99
O6T55175F47
06T55175F17
06T55175F07
06844593P73
06844593P61
06T55177F55
06T51107F01
06S44593P69
06844593P73
06844593P73
06S44593P69
O6T55175F17
06T55177F17
06T55179F57
06S44593P85
06S44593P33
06S844594P18
06S44594P18
06S44594P06
06S44594P08
06T56661F51
06S44593P53 |
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4wW
1/4W
1/4W
1/4W

Tone Control PCB Parts List
Stock No. gt os
Description
RV202
No. L-400
(VR Rotary)
RV201
18T56663F01|
50KCx2
18T56663F01| 50KCx2
(Capacitor)
C20la,b
€202a,b
C203a,b
C204a,b
C205a,b
C206a,b
C207a,b
| 23T00030L11] 4.7uF 25V El
08S40656F11| 0.0068uF My
08S40656F20/0.039uF My
23T00030L24| 22uF 16V El
21840655F31| 560pF Ce
08840656F22|0.056uF My
08844503P30/0.27uF_50V My
(Resistor)
R201la,b
R202a,b
R203a,b
R204a,b
VR Control PCB Parts List
Symbol
No.
06S844593P71|1.8K 1/4W Rd
06844593P53| 330 1/4W Rd
06S844593P87| 8.2K 1/4W Rd
06844593P69/ 1.5K 1/4W
SRE Shans
AT ae X2a-AMID
a)
°
Stock No.
L-400 Description
(VR, Rotary)
RV401_
[18T56665FO1] 1O0KBx2
(Resistor)
HD Phone PCB Parts List
(igek)
06S844593P57| 470 1/4W Rd
Description
CCWK-~2§0IZ6S9SC8!
E105 (HP)
09T56010F01|HD Phone M1669
Stock No.
L-400 Description
18T56666F01 | 250KW
Stock No.
L-400 Description
$701 HI
[40T57372FO1|Slide SSR2435
(Resistor)
R70la,b
Remarks
Capacitor :
Resistor
06S44593P21/15 1/4W Rd
.
Electrolytic,
Ce...Ceramic,
P
...Polyethylene,
My...Mylar.
..Carbon, Rm...Metal Film, Rce...Cement.

oor-71
IC
Handling
Guide
NJM2043D-D
A
output
We
Ic101
(Stock
No.
51T52153F01)
A
—
input
B
Output
A
+
input
B
—input
v—
B
+
input
(Top View)
TR, 2SA979G
Ql0la,b
(Stock No. 48T53430F01)
2G

Schematic Diagram
BAL ANCE
VOLUME CONTROL
B SPEAKER
2.7K
Ri16a
2.7K
Ri15a
R08a
10
R106a | R103q] R1040
56K 47K
-
ele =
x
3 rs
C113a | 2
iS)
AIA
tp af
DEQLD
Aste
©
©@
i}
R114 1M RMN3b 1M |
te
° O--48
FUNCTION
270-3
R153
C16b 0.047
Tv
\
A
$104 _
LOUDNESS
,
WOLOLLLY
“ev
C143 10,
HEAD PHONE
tOlEDSZ
SLOLVGZOLO
=
GOLD
|
yore
70610 9SOLO = Sign TEZTY
S
48010
47K
Ri29b
Ci23b {SPF
R118b
820K
8.2K A
R128b
Yiov
Yasv
AE
+
IL
Ci22b 100,
C201b &
DO7Ly Olvla
StOtV
PLOLO
=
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|
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To.
SL8tosz
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ZELD
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¥
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Le qocla
S812 O82
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W9S aSztu
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Dee ly
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Ee
ZY
DZ0LO DOzLY
SIBSLOSZ
022
wv
+
C2010 47/z5y
$108 TONE IN
2SK117
Q114a
KJ
@2ly-9ZZH
6OLG
°
a
g
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+H
s
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ire
ue
wu
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3 5
Rose
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TELS Selo
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zia
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i
py
+
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Az
1EL9
aseLso
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REO|
| BLK
8lLG
~SLLO
OZAES
BLU
47K
R106b RI03b RMD
56K
C105b] C1066
0.056 0.015
rT
CS
oe
ee
l l
| | 4
|
| | | t ' ' l
6)—_1—
yz
rwe--
Laces
eto
ob
5A
-~O%-O-
F001
84D56592F
HOS OSZLY
RED
LOAL6S9S.LS2
BLK
c001 0.01
$001
AC 120V
60Hz
all capacitors in micro farad.
2. Transistors and diodes may be replaced with any type
1, Unless otherwise specified, all resistors are in OHM /4watt.
Remarks
AFTER SERVICING APPLIANCE AND BEFORE RETURNING TO THE CUSTOMER,
FOR CONTINUED SAFETY REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH
CONFIRM THE INSULATION BETWEEN EACH BLADE(OR PIN) OF POWER
CORD PLUG AND CHASSIS 1S MORE THAN 10 MEGOHMS.
A INDICATES SAFETY CRITICAL COMPONENTS.
MANUFACTURER'S RECOMMENDED PARTS.
QE0ZH
9ZOZAN
97024
wee
D-wOS
=
UST
+
having comparable ratings.
specifications.
3. Due to continued improvments LUX reserve the circuit or
0 0 (UZ)
—~11—
ev
—10—

Specifications
Power Output:
8 ohm, 20~20,000HZ
Distortion:
- Input Sensitivity:
Phono (MM)
Phono MC
Tuner
Aux/DAD
Monitor
Input Impedace:
Phono (MM)
Phono MC
Tuner
Aux /DAD
Monitor
S/N Ratio:
Phono (MM)
(IHF-A weighted, 5mV)
Phono MC
(IHF-A weighted)
Tuner
(IHF-A weighted)
Aux/DAD
(IHF-A weighted)
Residual Noise:
Filter:
High Cut
Low Cut
Phono Subsonic
Phono (MM) Overload:
Frequency Respons:
Phono (MM)
Tuner
Aux/DAD
Monitor
Tone Control:
Treble
Bass
Loudness:
Volume -30dB
Dimentions:
Weight:
Net
Gross
Power Consumption
Specifications and appearance desigh subject to without notice.
55W/Channel
0.027
1.8mV
0.3mV
160mV
160mV
160mvV
50K ohms
100 ohms
40K ohms
40K ohms
40K ohms
90dB
67dB
107dB
107dB
0.5mV
7KHz (-6dB/oct)
7OHz (-6dB/oct)
15Hz (-6dB/oct)
130mV
20Hz-20KHz (within + 0.5dB)
10Hz-100KHz (within +0, -1.5dB)
10Hz-100KHz (within +0, -1.5dB)
10Hz-1O0KHz (within +0, -1.5dB)
+8dB at 1OKHz
+8dB at 100Hz
+8dB at 100Hz
453(W) x 317(D) x 111(H) mm
(17.8" x 12.5" x 4.4")
7.6Kgs
9.0Kgs
120V 2.3A
(CSA Rated)
oor-1
LUX CORPORATION, JAPAN
MINAMI-YUKIGAYA,OHTA-KU, TOKYO 145, JAPAN
TELEX: 2466953 LUXMAN J FACS.: 03-728-7609
L-NK.
8403.
OO6A
Printed
in
Japan