®

S/M Code No.84-003

DATA OF ISSUE 2/1984

SERVICE MANUAL
MODEL NO.

sreneo Tunnrame sveem [le M= 9 TO

TYPE. H,HB,UB,E,EB,K,KB,G
Follow the instructions carefully, which will allow the user to optimise the products’ performance
and give many years of serivce.
1. No scratch and melting shall be made to covered lead-wires of an 2) Wiring and holding of lead-wires with wire-clips and binders
a.c. primary circuit including mains leads. 3) Materials of lead-wires
2. No illegibility shall be given to the specification plate, the cau- *e.g.; For UL models, lead-wires to be used shall be ap-
tion labels, the fuse labels and others. proved or accepted by the UL.
3. When, on pattern sides of circuit boards, additional repair-parts 4) Location of all kinds of insulators
have been made up, the parts shall be firmly glued to circuit 5) Setting df voltage selector switch
) boards or other components, unless the parts can be attached *Set the Voltage Selector Switch to 240V, 220V, or 120V,
firmly. According to your Loca! Voltage.
. The following matters shall be maintained as they are, when 5 after rapaired, the insulation resistance or leakage current shall
repairing. be measured with 500 + 5V D.C and shall be not less than MQ.
1) Soldering of lead-wire ends
*Care should be taken of the space distance in an a.c. pri-
mary circuit as well as soldering.

Measuring Point

Rating - More than 1M@ /500V DC

Ground Cable (Q) AC Power Cord (@)

 SPECIFICATIONS

<GENERAL> <TONE SECTION> ARM

Power source: H, HB models T ype: Linear tracking type
ACI20V/220V/240V Straight static balanced type
switchable, 50/60Hz Effective arm length: 13 1mm
UB mode! Tracking error: 10°
AC!I20V, 60Hz <CARTRIDGE SECTION>
E. EB model T ype: VM type
AC220V, 50/760Hz Frequency response: 20~20.000Hz
K, KB, G models Out put voltage: 2.38+1.5/-0.5 aV
AC240V. 50/60Hz (lkHz 3.5 4 cm/s)
Power consumption: 10W Separation: More than 20dB (33-13 rom,
Dimensions: 330¢(W)x 8 8(H)xX3930¢(D)om at 1kHz)
C13" x3 L727" xX 1-3") Stylus pressure: 1.5+0.3s8
Weight: 5. tke (1 1.25 Ibs.) Load impedance: 4 7TkQ
<TURN TABLE SECTION> Dynamic compliance: 7X10 cm/dyne
Drive system: Frequency generated direct drive Stylus tip: 0.6mil, Diamond
system
Motor: 4-phase 8-pole linear torque DD
hall wotor
Turntable platter: Aluminum alloy diecast
Speeds: 33-173 and 45 rpm
Wow & Flutter: 0.03% (WRMS) ¢ The specifications and external appearance of this set are
S/N ratio: 75dB (DIN-B) subject to change without prior notice.

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 ,HB,UB,E
AIWA' LX-110 ERK KEG
1/4
S/M Code No. 84-003
ELECTRICAL MAIN PARTS LIST “tk shows unavailable Repair Part.

Symbol No. Remark Symbol No. Reaark A\ Safety component symbol

This symbol is given to important parts which serve to maintain
PCB=8 * ANGLE sensor circuit board the safety of the product, and which are made to conform to special
<MA IN CIRC WU IT BOARD SEC TI ON > CPi 87—031—736—-01 Phote interrupter, KU1 07 safety specifications. Therefore, when replacing a component with
CN206 84 — 127- 639-01 Connector ass’y, 3P kkk this symbol, make absolutely sure that you use a designated part.

PCB-A * Main circuit board

fc, M58103-400SP <PHONO MOTOR CIRCUIT
Note; Combination Circuit Board
C201 84- 127-605-01
1 C202 87 — 027 - 827-01 IC, TC4A069UBP BOARD SECTION > The parts on the electrical parts list which are indicated by an
1 C203 asterisk (*)} are supplied as one single combined circuit board.
87-020 - 149-01 ic. BA6&208
Therefore, they will not be supplied separately. If this becomes
1 C 204.205 87 —020- 148-01 IC, M5224P PCB=€ —_— Phono motor circuit board
necessary ,please order the entire circuit board.
1 C206 87 -020- 147-01 [C. M54547P MI. PI voor 84—124—630-01 DC aotor( PHONO)
Q201.204. 89 - 318 — 464-0! Transistor. 2SC1846¢R. S)
Combination circuit board A 84-127-620-11
Q202 89—210-670-- 0! Transistor. 2SB1067 <= POS
I TIiOoOon SENSOR CIRCUIT
Q203.205 85 - 110- 155-01 Transistor. 2SA1015(GR) BOARD SECTION > PCB-A 84-127-621-11
Q206 89— 318-155-901 Transistor. 2SC1815(GR) PCB-F 84-127-623-11
Q207.211.212 89 — 320 - 011-21 Transistor. 2CS200 1¢K. L) rc B=D * Position sensor circuit board
Q208.213 89 -—318- 154-01 Transistor. 2SC1815¢Y) Q 401,402 84 — 124—667-01 Photo transistor, PIN150(C)
Q214.215,216. 89 — 334 —-000-01 Transistor, 2S5SC3400 D401 84 — 195-638 —-01 LED. LN55(SENSOR)
Combination circuit board B 84-127-626-01
217 CN208 (84— 127-639-111 Connector ass’y, 5 P . kkk
Q218 87 — 026—-198-01 Transistor, DTAI 2 4 PCB-B 84-127-628-01
D201 .202 87 —027 — 365-01 Diodes S52778 < DISK SENSOR CiIRCUIE. T PCB-D 84-127-627-01
D203.205.209. 87 - 027-097 - 01 Diode. [S155 5 BOARD SECTION > PCB-D 84-127-629-01
210,219.220,
221.222.2238, PCB-E an Disk sensor circuit board
224,225,226. 84—127—-019-21 Tone arm ass’y [cartrige ass’y, with
227,228.229, PCB-E (DISC SENSOR C-:-B)]
230.23! 234.
237
D204 87-027- 509-01 Zener diode, HZ12B3 <= VOLUME CIRCU! YT BOARD
D206 235.236 87 — 027 — 332-01 Zener diode, HZ-6BiL S ECT ION >
D207 .208 87 -027- 942-0) LED. EBR5534S(STROBO)
D211.212.2138, 87 - 027-943-091 LED. PR5731K(PROGRAM
U][2} PCB-F * Volume circuit board
214.215.216, [3] (4) (5)[6)(7]
[8]. REPEAT) . V R501 82 —576 — 603-01 Volume, 10k2-B (SPEED)
217.218
D219,220.221. 87 - 027--097-01 Diodes 151555 <MIS CELLANE OVUS >
222.223.224.
225 226.227. ATI 84-{27-614—01 Power transformer (H, HB models only)
228.229.2380. ATI 84—127-611-01 Power transformer (UB model only)
23) ~234 237 AT1 84—127-612-01 Power transformer (E. EB models only)
D232 233 87-027 - 475-01 Zener diodes HZ-27-2 AT1 84 -- 127-613-—01 Power trnasformer (K,. KB. G models only)
Lt B4- 127- 640- 01 Choke coif. 1 00H M2.3 84— 127-601 —-01 DC: motor (UP “DOWN. LINEAR)
4 SW20! 87 - 031 - 805 - 01 Push--switch (POWER) AN 84—033- 140-01 Splice connector kkk
SW202.203. 87—O03!-74t - 01 Tact switch (PROGRAM [1)(2)(3] (4) rN 87 —034-—956- 01 AC power cord (H mode! only)
204.205. (6i(7]. ALL CLEAR. INTRO, Ay 87 —-034-958-961 AC power cord (HB model only)
206.207. REPEAT. <1. ©. UP.’DOWN, A, 87 —034-—-578-01 AC power cord (UB model only)
208.209. F.SKIEP. BJSKEP. START-CUT) Ay 87 —034-—877-01 AC power cord (E. EB models only)
210.211, NS 87—-034—711—-01 AC power cord (K. KB, G amode!s only)
212.213. A 87 — 085 - 165-01 Cord bushing (H,. HB models only)
214.215. A 87 — 085 —-184-01 Cord bushing (UB mode! only)
216.217 A 87 — 085 — 185-61 Cord bushing (E, EB. K. KB. G models
SW218 87 - 031 -737~ 01 Push~ switch (SPEED) only)
SWe1g 87 — O31 - 738-01 Slide switch (SENSOR) SW101.102 87 -031 - 736-01 Leaf switch (DOWN-SENSOR. UP-
X201 84—127-606—01 Ceramic resonator, X500K(P) SENSOR)
SF R201 87-021 — 746-01 Semi - fixed resistor, 10 0kQ2-B S W301 84-127-603-01 | Rotary switch (AC VOLTAGE) (H, HB
SF R202 87 —021— 749-01 Semi -fixed resistor, 470k2-B models only)
SF R203 87-021 -—744-01 Seni -fixed resistor. 3 3kQ—B J 87-049-060-01 | Jack. 2. 56 (REMOTE)
PI N201.204. 87 —049-275- Ol Pin, 5P kat CN203 84—127-636-—11 | Connector ass’y. 8P kkk
208 CN 204 84— 127-687 -11 Connector ass’'y, 5P kkk
PI N202 87 — 049 - 357-0! Pin, 5P kkk CN205 84—127—638-01 | Connector ass’y. 2P kkk
PI N203 87 - 049 - 374- 01 Pin. 8P akk CN2li 84 — 127-635-111 Connector ass’y, 2P xk*k
Pi N205 87 — 049 - 396 — 01 Pin, 2P kak 84-—199~606-0! | Output cord ass’y (L-—ch. R-ch OUT-
PI N206 87 - 049-—273—01 Pin, 3P kkk , PUT)
PI N209 87 — 049 — 356-01 Pin. 5P kkk 84 —124—605—0! REC SYNC cord Ass’y
PI N210.211. 87 — 049— 260-01 Pin, 2P kkk
CN207 87 — 047 —104—01 Connector ass’y, 6P kk

< Capacitors =>

C213 .302 87 — 018-044

- Ot 100 0nF
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Lx-110
ByteUae
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LX-110 eek B G
B ,E LX-110 H,HB,UB,E
EB,K,KB,G AIWA

BLOCK DIAGRAM

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CARTRIGE (SO [mS CIRCUIT
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SIOICON at DOWN}
DOWN:SNS e
UP- SNS Sio2 {ON at UP}
O
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"L" PALUS O
at PHONO REC|]

aa eas: D210
(MaceouctiON
MALFUNCTION
PREVENTION
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SYNCRETE CIRCUIT

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BAG208
1C205

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UP/DOWN CIRCUIT
4
KEY MATRIX PHONO

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 |HB,UB,E
AIWA’ LX-110 ER KEG
2/4
S/M Code No. 84-003

ADJ US TMENT

3. J)iscriminator sensor (D sensor) control A) Connect the oscilloscone to TP 2 (1) sensor) and
1. Stylus height adjustment
TP3 (GND) (Fig. 7). CWith 10 >: ft probe)
2) Turn the turntable | 8 &@° after adjusting the height Perform this adjustment after adjusting the stylus 5) Point the arrow on the test record toward the arm
1) Place a service jig on the external circumference
of the rubber sheet and turn the adjustment screw at adjustment point (1); !f the stylus height at ad- height. rest,
justment point (2) is 4.7mm or more, adjust it 1) Set the sensivity select switch to "NORMAL ™. 6) Adjust SFR20 1 so that the height of the waveform
to adjust so that the stylus height is at the posi-
tion shown in the diagram. (Refer to Fig. |) again, (Refer to Fig. 2) 2) Short-circuit TA4 and TP 5 to stop the turn- is 3.0 ~ 3.5 V when the arm is moved by hand to
table. pass between the 6& th tune "no-sound groove” and the
3) Apply an arrow mark to the test record. 7th tune “wow and flutter 3kHz".
Tone arm Tone arm Procedure: Apply an arrow mark at right angles to
the line from the point where the feed
Rubber groove enters the 7th tune "wow. “flutter
sheet Adjustment 3kHz" from the &th tune “no-sound
groove’. up to the center hole.
point (1)
|
i

Jig 7. wow / 3.0~ 3.5mm

|»,
flutter
Adjustment Center > 3kHz
Jig point (2)
hole —
When passing between
“no-sound " and "“3kH ”’
Fig. 1 4 ~No-sound
? Turn 180° Fig. 2 groove Fig. 6
Reference
|. Standard: 4.2 ~ 5.2mm. Return the arm to the arm rest, operate as shown in
9. When the cabinet is attached, the adjustment heigh item 6 again, and check that the height of the wave-
may be approx. 0.2mm heigher. form is within the specified range.

Test record Equivalent pitch

ATR-004 os
ae Angle sensor (A sensor) adjustment
Fig. 5
Perform this adjustment after adjusting the stylus
height.
Remove the belt of the finear motor.
Short-circuit 1 P4, 5 and stop the turntable.
A. <Auto-in-’out adjustment
Place a test record (A TR-003) on the turntable.
29
G5
mm Turn the adjustment boss clockwise (in the direct-
ion of the arrow) and move the holder fully in the
direction of the arrow. (Refer to Fig. J)
5) Move the tone arm to the auto check 2 5cm pusttion 1) Place AIWA test record (A TR-003) on the turn 1) Press the START-’CUT button and check that the
by hand. | Holder table, press the START,CUT button and turn auto-in count is 24 ~ 37
§) Adjust SF R203 so that the voltage between test the adjustment boss to adjust so that the auto-in 9) Check that the auto-out count is 1 5 or more after
points TP 1 and TP3 is 8 + 1V. (CUP condi- adjustment is completed.
count is 22~ 28. (Refer to Fig. 7)
tion) Z Check that the auto-out count is 11 ~ 14 after f Method to check]
button to lower the ara,
—

Press the UP “DOWN adjustment is completed, Prepare paper as shown in the diagram. place it under
—]
c Turn the adjustment screw clockwise so that the Adjust the auto-in again when the auto-out count is the styfus and move the tone arm and pul! out the paner
voltage is 0.4 ~ 0.5V. (DOWN condition) out of the specified range (1 1 ~ J] 4). when the tone arm passes the 2 5cm lead-in.
(Refer to Fig. 8)
Adjustment boss

Paint black using

indelible ink, etc. Bi
3 (Fig7)
5
—
5 om
|
TP1 ( Asensor }
EYMAIN C.B
_7 TP2 ( D sensor )
Test record
—~— TP3 (GND )
25om lead in

Fig. 8
Adjustment boss
SFR201
te Discriminator Fig. 7

SFR203 ye SFR202
ngle sensor Stylus lowerin :
2 Fig. 4
5. Stylus lowering position adjustment
When SF R20 2 is turned clockwise, the stylus
moves approx. 0.1~0.2am inward, and when it is
turned counterclockwise. it moves approx. Q.1~
0.2mm outward. When the stylus height adjustment Record

2d
position is set to 4.3mm. the stylus lowering posi-
tion moves approx. 0.1mm outward with the height to
adjusted 4.7mm. (Refer to Fig. 9 )
Fig. 9
 cf ac
LX-110 cain LX-110 H,HB
EB.K UK
f
8.0 AIWA
CIRCWW I YT DKESCR I PTT ON

PROGRAM TUNE-SELECTION MECHANISM

1. Outline 2. Memorizing inter-tune position 6 )A« iS a comparator with hysteresis. and it compares V.
When the tuner is selected by the program button oper- Slits are engraved with a pitch of 1mm on the mark and Vc. and makes the rise of its output Vo the tnter-
ation and the START button is pressed, the arm (black mutal plate) of the position sensor as well as tune sensing signal. (Refer to Fig. 5)
moves to the internal circumference while it is kept in holes which sense the rest position, 3 Ocm records and Fags 5 a. Inter-tune sensing signal
the UP state. The inter-tune position is detected by 1 7cem records. The number of slits before the slit
the disc sensor during this movement and memorized by the where the inter-tune signal is output is sensed by the
microcomputer. The size is sensed simultaneously at microcomputer, to sense the inter-tune position. (The
this time. The arm moved to the internal circumference microcomputer, counts |, 2, 3, 4... every time the
moves to the {st tune of the program and is lowered. position sensor passes the slit. )
When the performance starts (when the arm is lowered), a. I nter-tune position sensing slit
the MS circuit works: when the no-signal state contin-
ues for 1.5 see or more, the circuit makes the arm
move UP and the arm moves to the 2nd tune. (It
moves to the next tune directiy without returning to the Inter-tune
arm rest. ) sensing
signal

Size sensing
The inter-tune position is Fig.5
memorized by the disc sensor 4. MS circuit
procrammed’s
r i m
eine
une sensin
= i 23 4 15 32 33 46 47 48
i
1)When
;
the
;
arm is towered.
:
muting of Q2 1] 1.
:
Q21
s
2
| | ig released and the signal enters the MS circuit.
> UJU U U U U u U U UE 2?When the arm comes the =! count (Slit No. of the
Programmed = Returns B [ mask sensor) of the inter tune position me was sensed
tune sensing OQ after previously during the arm UP operation. the microcom
UP:Performance i passing | puter (1 C201) starts to monitor the MS signal.
= | 3.)When the no-sound state continues for | .5sec or more.
; ies . ah g it 1S Judged as inter-tune and the arm lifts. (However.
<—> Pere nesiien poems aut when the programmed numbers continue. the arm does not
lift but the performance iS continued as bY. Ss )
MS operation Fi Fia 2 (MS sensitivity is not related to the positions of
ig. 1 | Ig. SW119 and the sensor switch (LOW, NOR,
HIGH). )

3. Dise sensor circuit

O+8
Vo

Cartridge
Loch

Fig. 3 >
Pe aentel)

| MUTE
ae
=
=e
IF Inter- Inter- Inter- From Rech
tune tune tune

B1: Equalizer B2:Low cut B3 : Comparator

Flattens Cuts 500Hz
1)Light from the LED 1s reflected by the record, enters eo or Sale
the phototransistor and 1s converted to current.
This signal is amplified by Al of ]1C 2905. and V,
is obtained, This output V; is compared with the re- Fig. 6
ference voltage Vs. and controlled by the time constant
of RI 69 and C229 so that Vi-=Vs. (When the
amount of light entering the nhoto transistor increases. v2
the internal resistance of Q{ 13 is increased to dim
the LED so that the amount of light incident on the a
photo transistor is always kept constant. )
2)When the arm passes the inter-tune. the incident a-
mount of light 1s increased. but the time constant T is
smaller than R169+*C229. so the waveform as V; 0 Ene
shown in Fig. |] is obtained. Fig.2
3)When the waveform is sliced by the dot line (a) via the
Slice circuit. the waveform shown as V2 in Fig. 2 is V3
obtained.
4)By differentiating this. the waveform shown as V3 in
Fig. 3 ts obtained.
5)By amplifying this via A3, the waveform shown as V.z
in Fig. 4 is obtained: Vc is obtained by peak-holding | 5
hj
this. T
Fig.3
V4

Ve

Ri7i- Vee

RI7i+R270

Fig. 4
SCHEMATIC DIAGRAM—1
! 2 3 1 12 13 14 15 | 16

M2 M3
SWi0! UP/DOWN MOTOR LINEAR MOTOR

+M) i)
yyy5 2
G L R DISK SENSOR DISK SENSOR

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CN204
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DISC GROOVE DETECTOR SIGNAL KK ve 2 Os(yy SENSITIVITY aaeeuaies
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[REC SYNC] | CONTROL IC
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PIN2O9 : PHONO MOTOR SPEED

“CONTROL CIRCUIT

C211
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——
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POSITION SIGNAL
Ic20!1 MS58103— 400SP DIGITAL CONVERTER
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2SB 1067 RESET
(2881034) AUTO
(MANUAL) VRSOI
POWER CIRCUIT
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Fol O O O O | | O O O O O O s NORMAL SPEED ADJUST
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sw202 Sw203 Sw204 sw2os Sw206 SW207 sw20s8 sw209 SW210 sw2il sw2i2 sw2is Sw2i4 sw2is Sw2i6 8W217 sw2is
AS MAIN C.B [PROGRAM] [PROGRAMZ] [PROGRAMS] [PROGRAMA] [PROGRAMS] [PROGRAMS] [PROGRAMT] [ALL CLEAR] [INTRO PLAY/LIGT —s SKIP] [START/GUT ected
 AIWA'

: | NOTES:
4 4) 6 7 8 9 10 i I2 13 I4 IS ie 1) a B (+) power supply a a B (—) power supply
; 2) cc? Signal path
The voltage is the reference value measured with a
tester (20 k-ohms/V DC) when there are no signals.
M2 M3 But ( ——)is with AM reception or recording.
Sw101 UP/DOWN MOTOR LINEAR MOTOR An asterisk (*) indicates that the value was measured
=NSOR : bs(M) (M) z with a vacuum-tube voltmeter during recording.
Resistors with no designation have a rated power of
wis c602 1/4W and a tolerance of +5%.
‘ 0.1 Capacitors with no designation have a dielectric strength

cas iceee PIN204 PIN205 The only Gapacitor tolerance indicated are £5% (J)
|' UP MODE | $W219 DISC SENSOR
DISC GROOVE DETECTOR SIGNAL ( | Re ee SENSITIVITY LINEAR MOTOR ‘pio. 1. Wh and +10% (K).
DIGITAL CONVERTER CIRCUIT | ees a | SELECTOR eat 4 Ceramic capacitor symbols:
saa ba eee ~ CONROE areas [Down
Seed ele0.457008
are 4 For pareit compensation (SL)
: = ee - ae ) par es —{k- High dielectric constant system (YY)
} $ = , . . .

| : : , (B! ANGLE aedielectric constant system (YW, YP, YZ)

IC205 M5224 P (Wath no sound eT SENSOR C.B —{ High
Seon MAGEE” peas C228 1000P Leek |. OR SO! -KUIG7 —*1 + Semiconductor ceramic
eV
| 120 1/4W REM --5 —*{t+ For temperature compensation (SH)
vy ——— | oe. (»"” @ oe Explanation of symbols
x} | BL ¢—tt—4 FE gr x Pegi a (@ Mylar capacitor
oF D225 181555 | = , (@) Aluminum solid capacitor
¥ x
‘ Fe a 5PINZO6} @P) Polypropylene film capacitor
+ +4" . 7
a mi os > | = Wt Printed resistor
; ¢ io 3 +++ Fuse resistor |
| S x sii i nN
S |: od & Aw Safety component symbol
4 “lq é cweor | TO PHONO | This symbol is given to important parts which serve to
3 w | ~~ MOTOR C.B ; maintain the safety of the product, and which are made
rx < x

Pa el to conform to special safety specifications. e ° ry

\ sound mY é e *
oe LIE Sie Therefore, when replacing a component with this
= Py Ta fa] symbol, make absolutely sure that you use a designat-
“ SYNCRATE CIRCUIT 0
s R216 220K R219 680K WT [st |] ed part.
1c202 2/6 Ps 5 : : : ‘ ‘ :
: ne 3 eee Cee Fae |ia a ee This schematic diagram is subject to change without

TRE 75 pais
gy clos]amrom | em id
| DOWN MODE | i. | ee Ie Q208 ‘ARM LEFT oe eee : ‘
See maces orem era om ARM
RM RIGHT | : t notice in the interests of improved performance.
D209 vam] neni2 UP/DOWN MOTOR Ez ae ,
isi555 (O® PW Ai CONTROL IC an
Se x | 2 PHONO MOTOR SPEED i :
a seeoool. gs si ay . CONTROL CIRCUIT Pa
iy \; | tn - n é *

BS . » y
c 8
: - [D| POSITION ° por
ng ¢ NEO SENSOR C.By ‘

:: : ie
-~ wo

:e it 9 alka
Bc O40! PNI50] (C)
| [itt [st | ome Gy 2SA1015
kK)
= 2SB1067
:
2SC 1815
el cece &, PN150 (C)
tae), 2SC2001

5801
25C1846(S)
=
[12.6V'
her _— =<
= :
BGR
1C202 TC4069UBP
Sessa fe D40! es
LNS55 '

He Coe a
N
j PIN206
*) x Z || 1c201 M58103— 400SP _ |

a|
0”
al
-
¢
3 wo [=]
aw ~

_ m : 5 5 ss & = ge é
o| a| 8 fe Slo ye= F3 ale a | g 3 g 3 5 885 2 & |
NI; ao} 9 s | | 8 3 3 (9-13 e+

35
. : ae ee
. 8 Sah
peeerery
=
eererere
hn
tireetiree
iit. 2SC3400
'
pectncalt “¢
8 ~ i s== va tai C303, like ol
| = EE EEEOOCOS A O O | :
, 3 : E 2 a O

EY et } seas 44 2SC 1846 DTA124_ 2SD471

oo f€| g 2 | | 2SD1509
ape § se REMOTO]
o ey x ‘
wu © D2ti~ Dats
a PRS731K X8 bod
-24V owe
(2881034) ~ AUTO
POWER CIRCUIT GOA AT ES CAE ES 6 ES SET GEE, GaN apenas VESO.
ON tp = ot 4
oo => ee : i ae =
| 7 Ree er
iE GRE PE a

on
sw20t
bs (33 )
] MAIN C B sw202 sw203 sw204 sw205 Sw206 $w207 sw206 sw209 sw2to sw2i! sw2i2 sw2is sw2i4 sw2is SW216 SW2i7 sw2is —

; INTRO PLAY/LIST (=) Le] (emo ] (ear ] [p.exip} [start/cuT | [SPEED] noe
2SC3400
AIWA’

A 1C201
ee
M54103-400SP Pin Specifications

a
a
| 8 | REMOTE | Remote control input. Start performance at the rise to "HI GH” from "LOW",

POST 0 Detects the amount of movement of the tone arm by counting the position sensor input
pulses.

1 POST 1 Bani arm movement range detection input. The arm can move within a certain range

ee
” level,

ee ee
enp owe (sD

C lock output. 6 Vp-p, 50 0kHz.

Clock input. 12Vp-e, 47 0kHz.

Ee tee Ca

tease P honomotor ON/OFF control output. Rotates at “and stops at

F HOpoMotor speed control output.

: 33 rom "H* : 45 rope

Prograa No. LED indication outputs. Lit at "H”.

4 REPEAT REPEAT indication output. Lit at

Dise sensor input. The rise to "H”~ from "L“ is set to becomes the input.
 H ,UB,E
LX-110 ERK. KB,G
3/4
S/M Code No. 84-003

IC M54547
(12)
Veco2

Performance finish signal input.

Record size detection input. The rise from ”"L* “1s the input. ~~

3 ('5) ©
Arm UP output. ”H”% during arm UP operation.

DOWN Arm DOWN output. ”"H° during arm DOWN operation.

— RIGHT Arm rightward movement output. ”H*~ during ara movement to the right.
Angle sensor input. Voltage
rises when arm angle drifts.
LEFT Are leftward movement output. "HH during arm movement to the left.

RESET input. Reset when ”"H“ level is applied for the period of 3 6us or

Not used.

CTs Re
Remarks

Ce ewe [exe
Lissa en
Forward rotation(dur-
ing arm UP and move-

Defer [seen
ment to the right)
None in
Reverse rotation(dur- general
ing arm UP and move-
ment to the feft)

te OUT R Rightward movement output.

| 8 V during arm UP and move-
ment to the right.
Analog forward rotat-
ion( Not possible in
normal operation) POS |

Analog reverse ope- Rest position

ration{during arm 30 TOP
DOWN operation 25 TOP 14 OUT L Ra eh ie en
17 TOP . Sa |
cae = 39 END operation an ee
ote sv = 17 END UP. movement to the left.
I nhibit
IN; = Set to "H* during arm
en may occur when the brake is applied. ? DOWN operation and the
+ Voc POSITION SENSOR switch inside I C is set to
IC BA6208 {Mask plate hole and operation] ON.

Q402 !C201
POSI 0 (pin 5) ‘
IN (DO O
ae SOC DOWN) Q401 10201
POS! 1 (pin 6)
IN; € UP) OO UP) 17
; T T E E
Ven a) 0 0 IN N
P }? P 0

GND
AIWA'
NOTES Earth pattern . . Component side pattern Others pattern

WIRING—1
1 2 3 4 5 6 7 8 9 10 11 12 13

CON203
(TONE ARM
J EARTH)
Boe es ee Veg ee a Pe een eee ee a te ae ree
eee, ee ee Eg tm eae ae i Pane Oa !
ee ee RR ci mre ten Te
I DEL
ty
|
| =
| ficctee=
|
|
|
ie
!
!
i
|
!
es t-te
Eee E39 nN Nae
a
| oe Sn a a
ee
ee
“ey mopeL
Se ee ‘ame
_
| y e =
|
:
! | y I
AC120V 60Hz | ! | AC240V/220v/120V |
|

py
ee eeeee | by 50/60H
: Swi ,
|
"
| | |
| AC240V 50Hz | T1(PT) |
(BLK) "K’ “GY MODEL (BLK) (YEL) 240V
— oe me eee cee Ge coe come ee ee ee ee ee ee eee ee oe eee |
© :
Jd

|
CON201
CON201 2 - |
E] ANGLE SENSOR (
procecorer 2 (RED)
| | pees ee |
2 (RED) 120V u
3
| 3 :

I |
(WHT)

(BLU) ! (BLU) |

Mi eR ag hele eee ee ee es ete cant

—_— ere oe ee ree ee crm em mm ree ecm te ee wee ee ee ee ree ee ee es ee ee ee res ee ee ee eee eee ee me ee wee ee eee ee eee ee ee
I
| ee ee ee ree wm cere em ee me mee ee ee re ce ce ee ee ee ee en oe ee em eee ee es eee ee eee ee ee ee ee

{
Sw202 SW203 Sw204 SW205 SW206 Sw207 SwW208 ove “N10 VOLUME C. B SW211 v :
FX MAIN C.B D211 6212 D213 D214 D215 INTROPLAY

v
D216 D217 D218 Sw212 SW213 SW214 SW215 SW216 SW219 SW217 SW218
3 4 8 CLEAR /LIST PEPEAT)/[ == ] [c= ] [UP/DOWN|[F.
SKIP][B. SKIP[SENSOR|START/CUT]

33r.p.m «+ 45r.p.m

Se
ee
(POT
SSS
SSS
SSS
eS
SSS
SS
ee

M2 SW 102 SW101
(UP/DOWN MOTOR) (UP SENSOR) (DOWN SENSOR)
(ORG/WHT)
(GRY/WHT)
(RED/WHT)
(WHT

©)
C601
(YEL) (WHT)

(RED) (BLK)
CON208 ~@>-

a
ap <a>

(ORG/WHT)
CON204
(GRY/WHT)
(RED/WHT)
(WHT)
(RED/WHT)
[p}POSITION SENSOR C.B
 : H,HB,UB,E
Earth pattern ©“. Component side pattern LX-110 EB,K,KB,G
Others pattern
4/4
S/M Code No. 84-003

17 18 19

LED

CON203
(TONE ARM
J EARTH) PHOTO TRANSISTOR

[p=
“H™ MODEL

~<a CANTILEVER
CARTRIDGE

Pce [E]
COVER

AC240V/220V/120V

[§ DISK SENSOR C.B

——— en Se CO cee eee ame ne ee Gee ace Geen Sue meee comes GheD GED qm eames cueme Gene ame cucew que anus aun eummp eum oun eames wee mmm qu ave aus tome mem — a a ey =e Ge eS ee ee ee ernee

-—— oe ee em ee ee re em re ee em ee we ee meee ee ewe ee we ee ee ee me we we ee ee wee ee,

(RED)
(YEL)
(GRN)

LLL re ce eee ee cme cece ere coe ee ee es cee ee es es es ee ee ee wee wee cee ew ee ee te res ee es ee ee ee eee ee ee

VOLUME C.B ww,

INTROPLAY SW217 SW218
3} 64 [5] ~—‘([6) CLEAR /LIST [PEPEAT][
=] [C=] [UP/DOWNI[F.
SKIP][B. SKIP|SENSOR|START/CUT]

(TONE
u3({_
ARM
©
LINEAR MOTOR)

C602

33r.p.m <> 45r.p.m

| SYNCRATE
= F®° |output

[8)}POSITION SENSOR C.B

\i a iai amta 1ameieemet namie : _ ‘ Ve eae . a oe
“HB,UB,E LX-110 H,HB,UB,E LX-110 4HB.UB.E
LX-110 Pa CKEG EB,K,KB,G | EB,K,KB,G

1 2 3 4 M) 6 7 8 9 10 11 12 13 14 15 | 16

_ MOTOR C.B
° ~ D®OOO®O ~ MOTOR CBl
Q9 2SAIOI5(GR) ;

I
B

QII
2SAIOI5(GR)
C RI8
PHONO MOTOR 75K
ADJ. & 6
]

!
D

ClO |RIG
| 0022) 1M {

F
O) TP3

QIO Ql,2
2SCI8IS5(GR,BL) 2@SC2l20(yY,O)
G

ene

Phonomotor adjustment
How to adjust semi-fixed resistor in the phonomotor board Alter-
ICI VCIO3I nately adjust the speed control volume VR501 and the semi-fixed
| resistor VR1 on the phonomotor board so that the stroboscope
H stops with the speed control volume set to the same position dur-
TPG SHCR SHC __ VreF OUT2 LIM VoD =i Spee d semecuon
selection.

SCHMIT
i
CIRCUIT SUPPLY

INN INa OUT! FGO FGI Vcc GND

 Others pattern
LX-110fekkeg LX-110RHBRBE AIWA
NOTES (RM Earth pattern |

MOTOR C.B
55V Q9 2SAI0I5(GR)

RI3 39K

Q5,6
2SAIOIR(Y,GR

QIO QI,2
2SCI8IS(GR,BL) 2SC2120(Y,0)

Phonomotor adjustment
How to adjust semi-fixed resistor in the phonomotor board Alter-
nately adjust the speed control volume VR501 and the semi-fixed
IO3I| resistor VR1 on the phonomotor board so that the stroboscope
stops with the speed contro! volume set to the same position dur-
SHCR SHC VREF OUT 2 LIM Vpod ing speed selection.

(3) (2) “= 9) 8)

TIMING ane
HOLD
|

SCHMIT POWER
CIRCUIT | SUPPLY
FG. AMP

2) 3) 4 S) Ls
INi OUT! FGO FGI Vcc GND
DISASSEMBLY INSTRUCTIONS
Removing Main Cabinet

1) Remove the dust cover and turn—table. 3) Pull out the speed adjustment knob and
(See Figure— 1) remove the 7 screws to dismount the main
cabinet in the direction of the arrows.
(See Figure— 3)

Dust cover

2) After removed the cabinet cover, shift the

tonearm to the position as illustrated. ;
(See Figure— 2) Note) When remove the speed adjustment knob,
take care not to scratch it.

Cover, Cabinet

87 =261— 16 =z} V+4—-4

87 — 341 — 100-21 UT S216
$7—081—S11—01 VTT+3-6
87—081—512—-01 VTT+3-8
EXPLODED VIEW-|

~16

VTT@3-8

lO
 PARTS LIST
@ mark in this part list shows exclusive part.
MECHANICAL PARTS LIST @ x*x’’ shows unavailable Repair Part.

Part No, ae Common ’

l- 1~ 4 84- 127-038 -01 Dust cover ass'y Ke 1

1- | 84- {27-037-61 Cover. Dust x l tok
l- 2 84- 128-027-014 Hinge ass’y 2
l- 3 87- 233-094-11 Q+3-6 2
1- 4 84- 128-029-01 Damper 2 | kke

1- 5 84-120-0L1-11 Rubber sheet AP- D60 l

1- 6 84-127-022-01 Turn- table * ]
}- 7 84-127-016-01 Cover, Cabinet * l
1- 8 84-127 027-01 Name plate. Spec. (H model only) K | kkk
84-127 057-01 Name plate. Spec. (HB model onty) K l kh
84-127-058-01 Name plate. Spec. (UB model oniy) * l kkk
84-127-029-01 Name plate. Spec. (E model only) K ] kkk

48-127-056-01 Name plate, Spec. (EB model only) DG ] kkk

84-127-030-01 Name plate. Spec. (K mode! only) * l kkk
84-127-059-01 Name plate, Spec. (KB model only) x l kkk
84- 127-033-01 Name plate, Spec. (G model only) K l kkk

1- 9 ~2 84-127 -036-01 Main cabinet ass’y (H. E, K, G models only) *K l

1- 9 ~25 84- 127-042-01 Main cabinet ass'y (HB, UB, EB, KB models only) K 1
1-9 84 - 127-035-011 Cabinet. Main (H, —£, K. G models only) * ! tik
84-127-045-01 Cabinet. Main (HB, UB, EB, KB models only) K ] kkk
1-10 84-124-026-01 Name plate LX-70 ] kak
1-11 84-127-010-01 Push-key R x 1
1-12 87-511-095-21 VFT143-8 4
1-13 84- 127-004-01 Cap L (H, E. K. G models only) * }
84-127-050-01 Cap LB (HB, UB, EB. KB models only) D4 1

1-14 84- 127-007-01 Cap S. R (H, E. K. G models only) * }

84- 127-053-01 Cap SB. R (HB, UB. EB. KB mode!s only) i |
1-15 84-127-006-O1 Cap S. F (H, E. K, G models only) x 1
84-127-052-01 Cap SB. F (HB, UB. EB, KB models only) * |

1-16 84 -127- 005-01 Cap S. VP (H. E. K. 6 models only) K |

84-127-051-01 Cap $B, UP (HB, UB, FR, KB models only) * l

1-17 84-124-016-0t Mirror LX-70 1 kkk

1-18 84- 123-016-901 Guide. Light LX- 100 8 | kke
1-19 84- 124-009-01 Window A, Strobo LX-70 I
1-20 84-127-011-01 Push-Key L x |
1-2] ‘| 84-127-012-01 Guide, button K 1 | kkk
1-22 84- 128-030-111 Knob, POWER (H, E. K. G modets only) l
84-128-054-01 Knob, POWER (HB. UB. EB. KB models only) 1

1-23 84-124-227-01 C-spring. P LX-70 1

1-24 87-081-903-01 CS-2 1
1-25 84- 127-003-01 Plate R (H, E. K, G models only) x | kkk
84-127-048-01 Plate R (HB, UB. &B. KB models only) K | kkk

1-26 82-186-051-01 Knob (H, E, K. G models only) AD-WX110 1

84-127-061-01 Knob (HB, UB, EB, KB models only) % i
2-27 84-124-240-01 Cushion T.T.R LX-70 I kkk
1-28 84- 124- 239-21 Spacer T.T Lx-70 2 | kkk
1-29 84- 124-243-01 Cushion T.T.L LX-70 ] kkk
1-30 84- 120-038-01 Lid (E, EB, K. KB, G models only) AP-D60 |
EXPLODED VIEW-2
: : 4 5 6 7

VTT@3-6
ee 3-6 ® /)

i ge
yTT@3-6

VTT + 3-6

Ze T i 2

E,EB,K,KB,G models only 30 A 30

 Part No.

2- i 84-127-215-01 Himelon 15-8 ]

2- 2 84 -124-234-01 HS guide. LED LX-er |
2-3 84-124- 235-21 SP guide, LED LX-70 {
2 4 84-124-012-01 Knob. Sensor LX 70 l
84- 124-013-901 Knob, Speed LX-70 1
2-9

2- 6 84-123-027-01 Plate, Jack (H, HB, UB models only) LX- 100 kkk
84-123-061-01 Plate. Jack (E, FB. K. KB, G models only!) LX- 100 kkk
2-7 87-084 -063- 01 Nylon rivet 3-5.5 (H. HB, B. UB models only)
87-084 - 078-01 Nylon rivet 3-4.5 (E, EB, K. KB, G models only)
2- 8 87-085- 165-01 Cord bushing (H. HB models onlyn)
87-085- 184-01 Cord bushihg (UB mode! only!)
87-085- 185-01 Cord bushing (£. EB. K. KB. G models only)

2-9 87- 034-956-014 AC power cord (H model only) I

87-034-958-01 AC power cord (HB omde!l only) |
87-034-578-01 AC power cord (UB model only) |
87-034-877-01 AC power cord (E, EB models only) |
87-034- 711-01 AC power cord (K, KB. G models only) 1
2-10 84- 127-019-411 Tone arm ass’y x |
2-1! 84-124-952-01 Tag. Caution LX 70 1 kkk

2-12 ~68 84-127-039-11 Bottom cabinet ass’y (If. HB models only) * 1

2-12 ~68 84-127-044- 01 Bottom cabinet ass’y (UB model only) x l
2-12 ~68 84-127-046- 11 Bottom cabinet ass'y (F, EB, K. KB. G models only) x 1
2-12 87-081-501-01 VIT+2.6-4 2
2-13 84-123-238-01 E-spring, Sensor LX- 100 2
when. 2-14 84-124-209-21 Lever A, Sensor A LX-70 ]
2 15 87-351 -094-01 VT143-6 2

2- 84-124- 222-01 Switch holder A LX. 70 | kkk

2- 84-124-204-01 Gear A, Worm LX 70 ]
2- 87-261-071-21 ¥+2.6-4 !
z- 84-124-242-01 T-spring. Wire LX-70 ]
2- 84-124-223-01 Wire rope LX 70 | k hk

2-21 84-124-228-01 C-spring. Cam A LX. 70 1

2-22 84-124-207-11 Up-down, Cam A LX-70 l
2-23 84-124-219-01 Up-down, Shaft A LX-70 I * ok tk
2-24 84-124- 201-31 Mechanism chassis ass’y LX-70 | kkk
2-29 84-127- 201-01 Cover, Motor x l toktk

2-26 84- 127-206-01 Pulley S, Motor x 1

2-21 82-541 - 268-01 Rubber belt, Counter 2
2-28 84-127- 202-01 Plate A, MASK * l tokie
2-29 84-124-205-11 Holder A, Pipe LX-70 2
2-30 87-081-511-01 VIT+3-6 10
2-3l 84-124- 206-11 Holder B, Pipe LX -70 2
2-32 84-124-214-01 Pipe A LX-70 l tokte
2-33 84-124-215-01 Pipe B LX-70 l kkk
2-34 84-124-211-01 Holder A, MASK LX-70 l
2°35 87-038-039-01 Wire binder 2 hike

2-% 87-261 - 100-21 V+3-16 ]

2-37 87-391-717-01 Nut 3-2.4 |
2-38 84 - 124-665-01 Syncrate cord LX-70 1
2-39 84-199-606-01 Pin cord 1
2 40 87 085- 101-01 Cord bushing 1

2-41 87-084 - 063-01 Nylon rivet 3-5.5 l

2-42 84- 123-026-013 Plate A. Jack LX- 100 l kk te
2-43 87-441 -005-01 STE-2 4
2-44 87-071-013-11 Pulley A 3
2-45 84-127-041-01 Bottom cabinet F ass'y (H. HB models only) x } kkk

2-46 84-124- 246-01 Sheet 5-2-1.9 LX-70 | kk

2-47 84- 123-060-0] Rubber cushion 4-10-1.5 LX- 100 l kkk
2-48 84-124-238-01 Screw LX-70 - |
2-49 84 -120-025- 11 Rubber foot assy 4
2-50 87-081 - 483-01 Motor screw, M2.6 2

2-ol 87-087-029-01 Rubber cushion 2 kkk

2-52 84-127-205-01 Pulley L, Motor * ]
2-53 84-123-206-01 Shaft A, Worm LX- 100 I tke
2-54 84-124-231-11 Motor holder ass’y Lx-70 I kk
2-55 84-123-309-01 W3.2-8 LX- 100 2

2-56 84- 123- 205-61 Gear 8, Worm LX- 100 l

2-57 87 -067-039-01 PW2.3-8-0.25 1
2-58 87-067-020-01 VIT+3-4 3
2-59 84-123-204-01 Gear A, Pulley LX- 100 ]
2-60 87-441-011-01 STE-4 ]

2-61 84- 123- 236-01 E-spring. Solenoid LX- 100 |

2-62 84- 124-225-014 Lead holder C LX-70 I kk
2-63 84-127-209-01 Plate A. Motor (H, HB. E. EB. K. KB. G modets only) K ! kk
84-127-216-01 Plate, Motor (UB model only) x ] kk
2-64 84-127-210-01 Plate B, Motor x 1 kk

2-65 84-127-212-01 Himelon 100-8 (H. HB. E, EB. K. KB, G models only) m 1 thks
84-127-217-01 Himelon 100-8 (UB model only) ® | kk
2-66 84-127-213-01 Himelon 50-8 x | kkhe
2-67 84-127-211-01 Plate C, Motor *K | keke
2-68 84- 124-224-01 Holder B. Front LX-70 ] kk ke
 840225(1)-Z

vhicadacsilaaaieiainlias LIST
Part No.

84-127-854-01 Printed indiv., Packing kkk

84-127-852-01 Cushion F, Printed indiv. ak
84- 127-853-141 Cushion R. Printed indiv. kkk
84-127-855-01 Carton. Outer (H. HB. E. EB, K, KB, G models only) kik
WwW
mt!
an
8 84-127-856-01 Carton, Outer (UB model only) KKK ak

84-127-857-01 Pad, Corrugated board x xkk

87-O051-171-11 Poly-vinyl sack (for AC power cord & Pin code) ake
84-124-857-01 Sheet. Corrugated board LX 70 kkk
-“1
co
@om
© 84-124- 858-01 Sheet. Foamed mat LX 70 kkk
84-124-861-01 Sheet. Foamed mat LX-70 kkr

87-056- 651-01 Color label, Black (HB, JB. EB. KB models only) kak
84-127-904-01 Instructions booklet
87-051- 171-11 Poly-vinly sack (for instruction) kare
87 -056- 009-51 Distributors list (H, HB, E, EB. K, KB. G mode!s only) kkk
87-056- 050-01 Safety instruction (UB model only) kkk

81-056- 045-01 Guarantee card (UB model only) ak Je

87-056 -059-01 Guarantee card (G mode! only) kkk

87 -056- 084-01 Limited, Warranty (UB model only) kkk
87 -056- 008-11 Label. AC power cord (K,. KB models only) kkk
84 - 190 -965-01 45 adapter (H, E. K, G models only)
84-190-978-01 45 adapter S (HB. UR, EB, KB models only)
87-032-845-01 Siemens plug (H, HB models only)

AIWA Co., Ltd. Tokyo Japan

Printed in Japan