Pioneer TX-530L User manual

() rrloNEEFt'
ORDER
NO.
ARP
-086-O
STEREO
TUNER
TXISSOL
o This
service
manualis
applicable
to the
HE,
HB
types.
o ce manuel
d'instruction
serefdre
aumode
der6glage,
enfrangais.
o Este
manual
deservicio
trata
delm6todo
deajusteescrito
enespafrot.
MODEL
TX-530L
COMES
IN TWO
VERSIONS
DISTINGUISHED
REMARKS
AS FOLLOWS:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
SCHEMATIC
DIAGRAM
ELECTRICAL
PARTS
LIST.
.
EXPLODEDVIEW...
PACKING
ADJUSTMENTS
..
nEclnce
AJUSTE
9
11
13
14
15
17
19
Type Voltage Remarks
HE 22OVand
24OY Europe
model
HB 22OVand24OV U.K. model
CONTENTS
SPECIFICATIONS
FRONT
PANEL
FACILITIES
PARTS
LOCATION
BLOCK
DIAGRAM
CIRCUIT
DESCRIPTIONS.
DIAL
CORD
STRINGING
P.C.
BOARDS
CONNECTION
DIAGRAM
CHANGE
OF LINE
VOLTAGE
Whenswitching
over trom 22OY
to 24OV,
change
the connection
of the lead
wire for the power
transformer.
PICINEEFI ELECTFICINIC CCIFIPCIFIATICIN 4-1. Meeu.o 1-chome, rwesu.o-ku, Tokyo 1s3, J6p6n
fJ''' FE'ifIIF| ILIC?!|CINIC! CCIFIFCIFIATICIN E}5 Oxfond D.ive. Moonechte, New Jens€v o7o74. L).s.A.
F|C NTIF| lllcr;loNtc (ErJFroPEt N.v' Luirh€gen-H.ven g. eo3o anrweFp, Elelgium
FE'NtlFl ILICTFIC'NICa AUaTFIALIA P?Y. LTo. 178. 1A4 Elouncie.y Road, Bnaes.de, vacconia 31 95. a.u6r.6tr6
YU O JAN.
1982 Printed
in
lapan
2
3
4
5
5
6
7

1.SPECIFICATIONS
FMTuner Section
UsableSensitivity 10.8dBf
(1.9
sV)
50dBOuietingSensitivity Mono;17.3
dBf
(4.0
prV)
Stereo;39.2
dBf(50
pV)
Sensitivity(DlN)
......... Mono;0.85pV
Stereo;39.8
lV
Signal-to-Noise
Ratio
(at
80dBf) ..
Mono;75dB
Stereo;
70dB
Signal-to-Noise
Ratio
(DlN)
......... Mono;74d8
Stereo;
66dB
Distortion
(at
@ dBf)
Stereo........ ....,..
l k{z:O.2o/o
Distortion
(DlN)
Stereo
........ .......1kHz,O.2o/o
CaptureRatio.......... ......1.0d8
AlternateChannel
Selectivity ................60
dB
StereoSeparation
............ 1kHz;
ztO
dB
FrequencyResponse ......30
Hzto15kHz:!
fr
dB
Spurious
Response
Ratio......... ...........
70dB
lmageResponseRatio ......55dB
lF
ResponseRatio.......... ..
80
dB
AMSuppression
Ratio ......50dB
Muting
Threshold 19.2dBf
(5
pV)
AntennaInput .......300
ohmsbalanced,
75ohmsunbalanced
LWTuner Section
Sensitivity
lHF,externalantenna ....
45pV
selectivity ...25
dB
Signal-to-Noise
Ratio .......50
dB
lmageResponse
Ratio ......
40dB
lFResponse
Ratio.......... ..70dB
Antenna Accessory
AM looP antenna
MW TunerSection
Sensitivity
lHF,external
antenna ....30pV
selectivity ...25dB
Signal-to-Noise
Ratio .......50
dB
lmageResponse
Ratio ......40dB
lFResponse
Ratio.......... ..70
dB
Antenna AccessoryAM loop antenna
Audio Section
FM
(100%
MOD)......... 650
mV/3.5ka
AM
(30%
MOD)......... 200mV/3.5ka
Miscellaneous
Power
Requirements ........
AC220V,50,60
Hz
PowerConsumption ........9.5
W
Dimensions ....421
(W)
[email protected](H)
x226{D)
mm
16-1/2
(W)
x2-3/4
(H)
x8-718
(D)
in
Weight
(without
package) ......2.4kg
(5
lb
5
oz)
Furnished
Parts
FMT-typeAntenna ...............1
AMAntenna ........................
1
AntennaCatcher ...................
1
ConnectionCord
with
PinPlugs ..................
1
Operating
lnstructions ............
1
NOTE:
Specifications and design subject to possible modification without
notice.
<

2.FRONT PANELFACILITIES
O poweR
swtrcH
(powER)
When this
switchis
setto the ON position,poweris
supplied
to the tuner's main circuits. The unit's oower switch is
gearedto selectingthe transformer's secondaryand so even
at the STAND-BY position.
the unit's circuitry
will work as
long as the power cord is connected to the power outlet.
Disconnect the power cord from the AC power outlet when
the unit is not in regular
use.
@ rurueo
tNDlcAToR
(TUNED)
Thisindicates
thatan FM broadcast
station
isbeingreceiv-
ed.
The
indicator
doesnotlightduring
MW or LWreception.
@ stcNALtNDtcAToR
(stcNAL
1.,31
Thisindicates
thestrengthof the signalsbeingtransmitted
by the broadcasting
station
(FM,MW or LW)whichhas
beentuned in. The higher
the lamp which lights,the
stronger
the
signals
picked
up(and thebetterthereception).
@ sreneorNDtcAToR
(srEREo)
This lights automatically
when an FM program is being
broadcast in stereo.
It doesnot lightwhen the FM MUTING switch has
been
setto the OFF/MONO position.
@ muMUTTNG
swtrcH (FM MUTTNG)
In the released
position when it is normally set, this switch
suppressesthe annoying interstation noise which is heard
when tuning in FM broadcasting
stations.
lf the station signals are weak and there is a great deal of
noise and distortion, depress this switch (and monaural
sound reproduction
results).
This
switchdoesnotworkwith MW andLW reception.
@ rulnnw/Lw rNDtcAToRs
These indicate
the band (FM, MW or LW) on which the
signalsfrom the broadcasting station are being received.
@rurutruc
KNoB
Rotate
this knob to pick up the stations
(FM, MW or LW).
a;:-l
I o FlFi o I
t--l
@ rurucnoN
swtTcHES
(FM,
MWor
LW)
Depress
the FMswitchfor listening
to FMbroadcasts.
Depress
the MW switchfor listening
to MW broadcasts.
Depressthe LW switch
for listeningto LW broadcasts.
@ rneouENcY
scALE
Thisindicates
thefrequency
of the broadcast
station
(FM,
MW and
LW).
Thetop level
figures
(88ru'108)
indicatethe FMfrequencies.
The
centerlevelfigures
(55ru160)
indicatethe MW frequen-
cies.
Thebottomlevel
figures
(150-350)
indicate
theLWfrequen-
cies.
@ oureuT coRD
(accessory)
Thisisused to hookthe unitupwith thestereo
amplifier.
@ r-wpe FM
ANTENNA
(accessoryl
This antenna is for listening to FM stations and it should be
connected to the rear panel of the unit.
This isa spareantenna for listeningto FM stations and
used
untilanoutdoor
FM
antennaiserected.Forthe
best
reception.
anoutdoor
antennashould
beobtained.
@ nrtaANTENNA
ANDANTENNA
cATcHER
(accessory)
This antenna is for listening to MW and LW stations and it
should beconnected to the rear
panelof the unit. The anten-
na catcher is usedwhen fixing the antennato a wall or other
location.
NO7-E:
Even
with theaccessoryT-typeFM antenna
andAM antennait
may beimpossible
to tuneinto some stationswhen the broad-
caststationsare too far away or when the unit is locatedin a
weak-signal
areasuchasin themountains.
ln caseslikethis,use
an external
antenna.
r) e) (3) (4) (5) (6 @
mttt
ru^lEo s'6+al 6rE+Eo
I r-=-f-T-] r
L ]L_::Jt ]
tttl
FMMl,i,No I FUN4noN I.I -t .L
l:trlrl rl
l3l;-* lffi#l
9

3. PARTS LOCATION
r Front Panel
View
Front panel
ANM-128
Push
knobA (POWERI
AAD.417
Push
knobB {FM MUTING}
AAD-480
r Front View with PanelRemoved
[ ** Push
switch (POWE
ASG-s16
TopView
AC power cord
ADG.062
A * Po*", transformer
ATT.881
Switch assemblyA
SwitchassemblyB
4
A
NO?ES:
e Parts
without part number cannot be
supplied.
o The I marh found on some component parts indicates the importance of the
safety factor of the part. Therefore, when replacing, besure to use parts
of identical
designation.
o For your PartsStoch Control, the fast moving items are indicated with the marhs
** and *.
*T GENESALLY MOVES FAS'I:ER THAN *.
This classification shall be adjusted by eachdistributor because
it depends on model
number, temperature,humidity, e
tc.
Knob
(TUNINGI
AAA-079
** Push
switch
ASG.251 (FM
MUTING}
Tuning
shaft
assembly
AXA.350
Tuner assembly
GWE-181
Switch assembly C

4. BLOCK DIAGRAM
POIVER
SUPPLY
IC
(PA300r-A
)
DIALPOINTER
7t
ON OFF
I
I
AM Tuner
The AM tuner is two wave-bandtuner with LW
(150kHz-350kHz) and MW (525kHz-1605kH2).
This employs a 2-gangedtuning capacitor, a single
element ceramic filter, and an IC (HA1138)
consisting of an RF amplifier, mixer, 2-stage
IF
amplifier, detector and AGC circuit.
SignalStrength
Indicator
The TX-530L signal strengthmeter is a 3-point
LED display meter driven by the meter drive IC
(rR2E01).
.ri" Lfv Mw FM
5. CIRCUIT DESCRIPTIONS
FMTuner
The FM front end is comprized of a J-FET
(2SK168) single-stageRF amplifier, and NPN
transistor mixer, and an NPN transistor modified
Clapplocal oscillator.
The IF stageconsists of.2 dual-element ceramic
filters, a single transistor amplifier element, and
IF systemIC (PA300L-A) which incorporatesthe
IF limiter amplifier, FM detector, and the FM
muting circuit.
FM Multiplex Stereo
Decoder
The stereo decoder stage
employs an FM MPX
IC (HA1156W-P), while the subcarrier signals
(frequencies above 19kHz) are removed by an
- 18dB/oct. active filter consistingof a PNP tran-
sistor. This active filter also servesasan amplifier
for frequencieswithin its passband,
and eliminates
crosstalk.
5
FM FRONT-END FM IF AMP
A DETECTOR FM MPX STEREODEMODULATOR
INDICATORS
-.o O-
MUTTNG
*oFF *

6. DIAL CORD STRINGING
1.Removethe top cover.
2. Removethe tuning drum from the shaft of the
tuning capacitor.
3. Tie one end of the cord to the stud A located
insidethe tuning drum.
4. Rotate the tuning capacitor right around until
the rotor blades
arefully intermeshed.
5. Secure the tuning drum back onto the tuning
capacitor shaft, making sure that the securing
screwfaces
directly upward.
6. Pass the cord out through the small opening in
the circumference of the tuning drum (see
diagram), and then take it over pulleys B and
C in that sequence.
7.Wind the cord around the tuning shaft 3 times.
8. Pass it overpulley D, wind it around the tuning
drum 2 times, and finally tie it to the spring
hook F sothat it istensioned.
9. Turn the tuning shaft, and checkthat the cord
moves
smoothly.
10. Cut off any excess
cord.
11. Tum the tuning shaft counter-clockwise
asfar
as
it will go.
12. Align the dial pointer with the starting point
of the dial scale,and then pass
the cord over it.
13. Check that the dial pointer is in line with the
starting point of the dial scale.
1"4.
Finally apply the locking paint to the cord
securingpositions (stud A and springhook F)
andthe dial pointer connection.
Tuning
drum
Star
FM I I
-I
-
AM
Tuningshaft
)-'---t
--

3
2
7. P.C. BOARD CONNECTION
DIAGRAM
TUNERAss'y GWE
- .l81
Q2 Q6 Q12 Q3 Ot.l Ot4 q4 q5
Q9 Q8
*,'q"r;;d *# 'il
o-lt-€
ftt 3.rk
e.l+" LE'
@
*g
l'*',1"
"","^$S"
.*q *3i-
i$s's'
iffi:-ffi
"
ffi:'
;;"- #$i ,.,,0'f ..J*]l;,. ,A'&oo'
H,'- -Sf,
S',,$
, T5'o!.$)
CaoT
15K
itm,#,
^ D5
rd' €r
R3o6
3.3Kcaoi
a-+t4
2.3-
Catg.
IEts:
{3.3, 5r"t
?.220P
c'N
.li
(
r;
B
+ 'W'Tf"
"i\r'
iyJv/^' -ffi",ffi'
TT
k tt E -ft' .*.,. pe#5*.,:l;lE*'E#'
-* ': *;-'^*#*6-ffi.Fd'fl
C
ao2
q13.
0.047 Rsoe47(
ts------wl..-+ 15,+
_
r''fl30i4.7
Rr", lR^9-+H
-"di#. R3?
ar^i t nla n
Cao4
C.016
-l l{
Bio42.7K
R3o3
2.?.(
ri{F,
Cao3
0.018
+ firi '' u*En
**rLJr ffi,.,,* -:# d ttiuo
1
o o2osb'o"'
F- r'--l #. ffi Hil R3eoo( #;ffi;pffih'
"
o"'
*,*l
Hl
.: *i-m-#84
t;ar
:*-ffi
*g3,ffij$fu
*
llqffit%*,,,,
- --*:=*
,d€t
* ffi;"] *qfficffinoo\p-,p.
, a lld lbll tttoj ffizrxs--1 Brs 3,!,",o "*0,{t
*
- - "s
lTTk' *ffi;,,*l,,i.W;,+,es,
q$qt-',,r.*,,',*tsi'
€"s*
lru
ql
#H
,,;%'*,Wi4l:
kff" r"-"h=f_#
*l.la
b
LL'o"o,frr-1:'
-'i1;;;ur1,.""#;
ffi "r.-\u=1Em-
ryll: :llmm *33/16
ilJni' -l
.!. la @l'.-'"d:: #
Lw L----r Dt-5,1O-16 911_._. ft2n74l
us'tosc e8c9t5a,
5l
4a
SWITCH
Ass'y
(C)
3
2
I'

6
5
4
A
)
h
)l
),
L
:
SWITCH
Ass'y(
B)
r*lw
*f i':
r l*;:l
>j S;l B
=\ :R30312,
i\\-.i lt+{
\\:':"-r1ox4
\\*-*.'_-.-
1'_ _ AC22O,?4OV
A 50/60H2
ICT-I .'-)
lraa
It=, I A t-
t\Al
,-J
LEDAss,y c
SWITCHAss'y
(A)
D
6
5
4
MUTING
/ MODE
Ass'y
(C)

1
8. SCHEMATIC I
DIAGRAM
A
751
UNBAL
rc@ aaL.
cND _-
- iil,-L
B
e;;i 1,r
C
D
3
usto35
Q14 25C9454
MUTING
Q7 B41r56W
o5 usro35
Q1O
2SOAaO
REGU
LATOR ki f:'1".:.{;,*
t-
ll
I i*+
ttl
D3,4
uslo35
o6,7
iOE?FD
"'fl::pf:fff
f""
09 aEL-572 DA
KZt140
3
2

] RESISTORS
Indrcatd ih a, lW, ,5% tol€rancd
!.t6 orherwi* notd k : klr
M M1),(F),1%,0),'r*,t*t,tm_("),.20%toterance
? CAPACITOAS
I t.dicardincapacnv(pF)/vohase(V)u.*sorherwenordp
pF
IndcaiDn wirhour
votage ! 5OV
elceDr,terroylc capactror
3 VOLTAGE
E DC
volras€
lV)at
no npul
eqna
E s{r rc',d. d I v 4mc/ ,\. Hz
or \
A Adtustinq
po
fr
The -A mark roundon somecompo.ent pans ind,cates
rhe im
Donance
ol rh€ salelytaclor ot the Da( Therelore,
whenreptacing,
b€il.e to use
pans
01ideniicat
desgnation
Thh s the basi. *hematic draqram,b!r the {rLa
due
to rmproveh€nts
ndengn.
SWITCHES
s1 POWER oN _ olf
S2-1 : FUNCITON
LW ON _ OFF
s?-2 ruNcltoN M* oq _ otr
52 I I
UNCTTO\ FM oq- . oi,
s3 MUTTNG
/ MODE .O!l4UIg _ OFFIMONO
s4 aANo SELECTOR !!!y _ Lw
Th€ !nded'nd ,nd,cars rh€ 5w'rch ooei,on
L____
Qt3 IR2EOt I
Q1r,12
?5C945A
---l
NOTE:
The indicated semiconductors are representatiue ones
only. Other alternatiue semiconductors may be usedand
are listed in the parts list.
External
Appearanceof Transistors
and lCs
2SK168 rype
No
Lot No
PA3001-A
HAl 138
lR2E01
6
5
4
6= HA1156*-P
,flqnntr[
runery
2SCs35
2SC461
TypeNo
2SC945A h*'4lLot No
rypeNo
- _{ll $f_ j_hre
-/$f' surrx n
/ il\l \.,
J
tl\\
CU
2SA992
r;:
+
t,d
o",oou I I q
aol6oH, + | d
*
3lr
))r
ilF
llF
Lot No
NFE I
'l
__l
s'y
(B)
2SD88O A
2sD313 iN
,r**"-N D
^,.--$$1-l--r-otro
l/\JII
s!lI
6
5
4
Q9,9
2SA992
,'"r

9. ELECTRICAL PARTS LIST
MiscellaneousParts
Mark Part No. Symbol & Description
NO?ES:
c When ordering resistors, first conuert resistanceualuesinto code form as shown in
the following examples.
Ex. 1 When there are 2 effectiue digits (any digit apart from O),such as 560 ohm
and 47h ohm (tolerance
isshown by J: 5V",and K = 107o).
560n 56x 10t 561 . . RD%PS [56nJ
47ha 47 x 103 473 . . RD%PS[!U trJ
0.5a 0R5 . . RN2H @EEK
ra 010.. ESIPOEO/(
Ex. 2 When there are 3 effectiue digits (such as in high precision metal film resis-
tors).
5.62ha 562
x 100 5621. . . . RN%SR
EGAtrr
c The 1t',marh found on some component parts indicates the importance of the
safety factor of thepart. Therefore, when replacing, besure to use
parts of identical
designation.
c For your Parts Stoch Control, the fast moving items are indicated with the marhs
** and *.
** GENERALLY MOVES FASTER THAN *.
This classification shall be adjusted by eachdistributor becauseit depends on model
number , temperature,
humidity, etc.
Mark Part No. Symbol & Description
l-
GWE-181
A * Arr-881
** AEL-165
** AEL-O75
A ** AEK-402
TunerAssembly
CAPACITORS
Mark Part No.
Tuner assembly
T1O1 Power transformer
PL1 Lamp assembly
PL2, PL3, PL4 Lamp with wires
FU1 Fuse
(GWE-181)
Symbol & Description
CEA
OlOMsOL
CEAlOOMsOL
CEA
22OM
25L
CEA33OM16L
CEA2R2M
SOL
CEA
47OM
,IOL
CEA47OM25L
CEA1O1M25L
CEA221M16L
CKDYB561K
50
CKDYB182K
50
CKDYB222K50
CKDYX183M
25
CKDYF
103250
CKDYF473250
CKDYF2232
50
c110,
c307,c406
c102,c109,
c220,c309,c408
c219, C223
c214
c209
c224
c1o7, c205
c407
c405
c301
c311,
C314
c315,
C317
c310,
c313
c303, c304
c4, c6, c7, c13, c't4, c15, C204,
c208,c210,
c212,
C2't3
c101,c103-c106,
cl08,
c1
11.
c113,
C216,C302,C211
c16, C215
ACK-027
ACM-006
ACM-015
ccDUJ090D 50
CGB
R47K
5OO
ccDcH o80D50
ccDRH150J
50
CEA221M25L
CEA471M
16L
CEA471M25L
ccDTH 100D 50
ccDcH 150J50
ccDUJ 150J50
ccDcH 330J50
ccDSH 270J50
ccDsL 060D 50
ccDsl- 1o',t.'50
ccDSL221J50
cosA 331K50
cosA 511J50
cosA 121K50
CEAR33M
5OL
CEAR47M
5OL
VC Tuning capacitor
TC3 Ceramictrimmer
TC6. TC7 Ceramictrimmer
c1
c8
c10
c9
c40/.
c401,c402
c403
c202
c12
c2
c11
c222
c3
c5
c112,C207
c203
c305
c221
c306
c206.
c308,c316,C318,
C319
ACP-091
RN%PO15O2F
RD]/4PM
DtrBJ
RDl/8PM
trDOJ
Note: When ordering resistors,conuert the resistance
ualue
into code form, and then rewrite the part no. asbefore
Mark Part No. Symbol & Description
VR1 Semifixed
R307
R2,R6,R12,R14,
R101,R207
R208,
R301,R302,
R309,
R403
Rl, R3-R5,
R7-R1
1,
R13,
R15-R20,
R102-Rl
13,
R201-R206
R21
0-R215,
R303-R306,R308,
R310-R312,
R314-R321,
R401,
R402,
R4@-R410,
R208,
R302
11

SEMICONDUCTORS
Mark Part No. Symbol & Description
LED
AssemblY
Mark Part No. Symbol & Dsscription
** 2SK168 o1
** PA3001-A 05
** HA1
156W-P A7
** HA1138 06
** tR2EO1 013
Mark Part No.
** 2SC535 02
** 2sc461 03, 04
** 2SC945A 01
l,o12
t* 2SA992 ()8,09
A** 2sDB8o o1o
(2SD313)
* ust035 D1-D5,D10-D15,
Dt6
(1
S
1s55)
(
152076)
(
152473)
A * KzL14o D8
* 1OE2FD D6,D7
* AEL-372 D9
COILS,FILTERS
* AEL-371
* AEL-372 D101-Dl04
D105
Symbol & Description
ATE-O53
ATE.O52
ATB.O78
ATB.079
ATD-OI
1
OTHERS
Mark Part No,
T1 FM lF transformer
T2 FM det. transformer
T3 AM ANT coil
T4 AM OSCcoil
T5 LW ANT coil
Symbol & Description
ATD-0O6 T6 LW OSC coil
ATC-160 L5 OSC
coil
ATH-049 L6 RF choke coil
ATF-126 F1. F2 FM ceramic
filter
ATF-121 F3 AM ceramic
filter
** ASX-153
AKA-O18
AKB.O77
Switch
Assembly
A
Mark Part No.
Switch
Terminal
4-P
(ANTENNA)
Pin
jack
Symbol & Description
Switch
AssemblyB
Mark Part No.
** ASG-516
RD%PM5R6J R501,R5O2
Sl Push switch (POWER)
Svmbol & Description
** ASG-251
Switch Assembly
C
Mark Part No.
53 Pushswitch
(FM MUTING)
Svmbol & Description
12
** ASX-182 52 Switch
(FUNCTIONI

3
2
A
A
D
D
3
2
1l
10.
EXPLODED
VIEW
B
,'=l-

Parts
List
Mark No. Psrt No.
NO?ES:
o Parts without part number cannot besupplied.
o The $.marh found on some component parts indicates
the importance of the
safety factor of the part. Therefore, when replacing, besure to use parts
of identical
designation.
c For your Parts Stoch Control, the fast mouing items are indicated with the marhs
** and *-
** GENERALLY MOVES FASTERTHAN *.
This classification shallbe adjusted by each distributor because
it depends on mod,el
number, te
mperature, humid ity, etc.
Description Mark No. Part No, Description
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
1.
2.
** 3.
4.
5.
6.
7.
8.
9.
10.
ANE-357
BBZ3OPOSOFZK
AEL.165
AAD.417
PMZ3OP060FMC
AAG.237
ANM-128
AAA-079
AAD.48O
wA73F1
18U050
ABN-067
Top cover
Screw
Lamp assembly
Push
knob A (POWER)
Screw
Dialscale
Front panel
Knob (TUNING)
Push
knob
B (FMMUTTNG)
Washer
Nut M7
Switch assembly
A
Switchjoint
Pulley
assembly
Plate
LED assembly
Switch assemblyB
Smoother
Pulley
holder
Switch assembly
C
Bottom plate
Rear
panel
Tuningdrum
Pulley
assembly
A*
ANR-519
AEL.O75
AAF-117
AXA-350
ABA.252
ATT-881
11.
12.
13.
14.
15.
16.
17.
18
19.
20.
21.
22.
61.
62.
63.
Panel
stay Gsembly
Lamp with wires
Dialpointer assembly
Tuningshaftassembly
Screw
Power transformer
A
A
AEC-784
ADG-062
ADG.063
GWE.181
Foot assembly
AC powercord (HE)
AC powercord (HB)
Tunerassembly
2
3
Parts
List
Mark No. Part No,
11. PACKING
-qih
\-
ry- Doscription
1. AT8-076
2. ADH-004
3. ADE-015
4. ARE-O23
AR8485
5. AHA-296
6. AHA-297
7. AHE-013
ANT assembly
T-type FM antenna
Cord
Operating
instructions
(HE)
(
English
/German
/F
rench/
ltalian
I
Operatinginstructions
(HBl
(English
l
Front pad
Rearpad
Packingcase

-
E
12. ADJUSTMENTS
FM TunerSection
o Checkthat the dial pointer indicates
a startingpoint.
o Connectthe SIGNAL meter betweenterminal no. 5 of tuner ass'yand the ground.
. connect the TUNING meter between
terminalsno. 1 andno. 2 of tuner ass'y.
o Setthe FM switch to ON andthe FM MUTING switch to OFF.
NOTE:
Connect the MPX SG to the FM SG external modulator terminal and set the mod,ulation to Main (lkHz, L+R) !67.5kH2
deuiation, Pilot (19kHz) t7.shHz deuiation.
AM TunerSection
o Check that the dial pointer indicates a starting point.
o Turn ON the MW switch.
o Connectthe SIGNAL meter between
the terminal no. 5 of tuner ass'yandthe ground.
Step FM SG
(40OHz, t75kHz deviationl Position of
dial pointer Adiustmont
poant Adjustmont procedure
Frequency Levol
106MHz 106dB 106MHz TC3 Spt thp Tl ll\ll NG
9OMHz '|
06dB 90MHz vc3
(Fig.12-1) meterto the maximum value.
3Repeat
steps
1to 2.
498MHz 1
8dB 98MHz TCI
TC2,T1 Setthe SIGNAL meterto the maximum value.
5No signal White noise T2 set the TUNING meterto the center
position.
bTurn ON the FM MUTING switch.
798MHz 25.'35dB
Variable 98MHz R104 RemoveR1O4
when muting operation
stopsabove
30d8.
8e8MHz I ruot
Not modulated 98MHz VR1 Setthe signalof the terminal no. 10 to 19kHz (r100Hz)
998MHz I euot
Stereomodulation 98MHz T1
(within
tg0")Minimizethe distortion of the OUTPUT terminal
signal.
Step AM SG
(4OOHz,
30% modulation) Posataon
of
dial
pointer Adiustment point Adjustment procedure
Frequency Level
11400kHz 100d8 1400kHz TC5
Setthe output of the OUTPUT terminalto the maximum
val
ue.
2600kHz 100dB 6OOkHz T4
3Repeatsteps 1 to 2.
4l4OOkHz 30dB 14OOkHz TC4
56OOkHz 30dB 600kHz T3
6Repeatsteps 4 to 5.
-

LongWave
Section
o Set
the AM BAND switch to the LW position.
Stator
Rotor blade
Spatula
(GGK-066)
Stator
Rotor blade
ffi
4Un
X
ffi
ruN
X
Fig.
12-1 Adjustment
of tuning
capacitor
Step
AM SG
(400H2, 30% modulationl Position of
dial pointer Adjustment
point Adiustment procodure
Frequency Lwel
134OkHz 100d8 34OkHz TC6 Adjust until demodulated
signal
at OUTPUT terminalis
maximum.
216OkHz 100d8 160kHz T5
3Set the AM SG to 30dB output level,
repeatsteps 'l to2 above.
4340kHz 50dB 340kHz TC7 Adjust until demodulated
signalat OUTPUT terminalis
maximum.
5160kHz 50dB 160kHz T6
6Repeat
steps
4 to 5 until maximum sensitivityis
attained.
C
vR1€
no. 1O----q
*'r t
+l
nr
tr€
no.2-{ q-no. 1
fl*-"''
u
flt
HJ
#".1EX
@f,"u
ig rc7
'1
6
Fig.
12-2 Adjustment
points

12.REGLAGE
Sectiontuner FM
o V6rifier queI'aiguillesetrouve surla position de d6part.
. Brancher
le S-mdtre (SIGNAL) entrela borneno 5 du tuner et Iamasse.
o Brancher
l'indicateur d'accord (TUNING) entrela borne no l- et la borne no 2 du tuner.
o D6placerl'interrupteur FM sur la position ON, et le s6lecteur
der6glage
silencieuxFM (FM MUTING) sur
laposition
OFF.
Etape FM SG
(400H2,
d6viationt75kHz) Position de
l'aiguille Point de r6glage Proc6durede r6glage
Fr6quence Niveau
106MHz 106dB 1O6M Hz TC3 D6placer l'indicateur d'accord sur la position centraleet
r6glerle
S-mdtre
(SIGNAL) d
sa
valeur
maximum.
9OMHz 106dB 9OMHz vc3
(Fig.
12-1)
JR6pdter
les6tapes
'l et 2.
498MHz 1
8dB 98MHz TC1
TC2,T'I R6gler
leS-mdtre
(SIGNAL) dsa
valeur
maximum.
5Pas
designal Bruit
blanc T2 D6placer
l'indicateur
d'accord
surlaposition
centrale.
bD6placer
les6lecteurde 169lage
silencieux
FM (FM MUTING) sur laposition
ON.
798MHz 25-35dB
Variable 98MHz R104 Enlever
le R1O4lorsque
le 169lage
silencieux
atteint 30d8.
898MHz I tuot
N'est
pas
modu16 98MHz VR1 R6gler
le
signaldelaborneno l0 d 1gkHz
(l1OoHz)
98MHz I eOoe
Modulation st616o 98MHz T1
(entre
r9O') R6glerau minimum la distortion du signalde la borne de
sortie
(OUTPUT).
NOTE:
Connecter le MPX SG d la bonte du modulateur extdrieur FM SG et rdgler la modulation Main (principale) su une dd-
uiation de (lkHz, L+R) !7,5hH2.
Section
tunerAM
o V6rifier quel'aiguille se
trouve sur la position ded6part.
o D6placer
I'interrupteur MW surla position ON.
o Brancherle S-mdtre(SIGNAL) entrela borneno 5 du tuner et la masse.
Etape AM SG
(40OHz,modulation de 30%l Position do
l'aiguille Point de
r6glage Proc6durede r6glage
Fr6quence Niveau
Il4OOkHz 100dB 140OkHz TC5
R6glerla sortiede la borne de sortie
(OUTPUT) i sa
vareur
maximum.
2600kHz 100d8 600kHz T4
R6p6ter
les6tapes
1et 2.
4l4OOkHz 30dB 1
400kHz TC4
5600kHz 30dB 600kHz T3
oR6p6ter
les6tapes4 et 5.

Section
grandes
ondes
o D6placerle s6lecteur
degammes
d'ondessurla position LW (grandes
ondes).
Stator
Plaque
mobile
Fig. 12-1 R69lagedu capaciteur
de syntonisation
ffi
uxxl
X
ffi
4l_il\
X
Etape AM SG
(400H2, modulation de 30%) Position de
l'aigu
ille Point de
169lage Proc6durede r6glage
Fr6quence Niveau
1340kHz loodB 340kHz TC6 R6gler
jusqu'i ce que le signalde d6modulation d la borne de
sortie
(OUTPUT)
soitau
maximum.
2160kHz 100dB 160kHz t5
JR6gler
le
signalAM (AM SG)i un niveau
desortiede30d8, puis,
r6p6terles6tapes
I et 2 ci-dessus.
4160kHz 50dB 160kHz TC7 R6gler jusqu'A ce que le signald6modul6 d la borne de sorti€
(OUTPUT) soit au maximum.
q16OkHz 50dB 160kHz T6
oR6p6ter
les6tapes
4 er 5 jusqu'au
point d'intensit6
maximum.
o
TC4 IIEH
F lEI+
lEl-rs -
@ft-,"u
Tl3 'Tc7
no
2__{ s_no 1
Fig.
12-2 Points
der6glage
1A

12. AJUSTE
Secci6n
delsintonizadorde FM
o Comprobar queel indicador del cuadrante
sefralaun punto de inicio.
o Conectarel medidor de seflal(SIGNAL) entreel terminal no. 5 del conjunto del sintonizadory tierra.
o Conectarel medidor de sintonizaci6n (TUNING) entrelosterminalesno. 1 y 2 del conjunto del sinto-
nizador.
o Poner el selectorde FM en Iaposici6n ON y el interruptor de silenciamientoen FM (FM MUTING) en
laposici6n
OFF.
NOTA:
Conectar
el generador
desefialde multiplex (MPX SG)al terminalde moduladorexterior delgenerad.or
de sefialde FM
(FM SG)
y ajustarlamodulaci6n
a
Principal
(
thHz, Izq.!Der.) !67,5hH2dedesuinci6n.
Secci6ndel
sintonizador
deAM
o Comprobarqueel indicador del cuadrantesefrale
o Ponerenla posici6n ON el selector
deMW.
o ConnectareImedidor desefral
(SIGNAL) entreel
un punto deinicio.
terminal no. 5 del conjunto del sintonizadory tierra.
Paso FM SG
(40OHz,
i75kHz de dewiaci6n) Posici6ndel
indicador del
cuadrante
Punto dg
ajuste Procedimiento de ajuste
Frecuencia Nivel
1106MHz '| 06dB l O6MHz TC3 INIINIG
z90MHz 106d8 90MHz vc3
(Fis.
12-1], central
y el medidor desefial
(SIGNAL) en elvalorm5ximo.
JRepetirlos
pasos
1 al 2.
498MHz 18dB 98MHz TC
t,
TC2.T1 Ajustar el medidor de sefral
(SIGNAL) al valor m6ximo.
5No haysefial Ruido blanco T2 Poner
el medidorde
sintonizaci6n
(TUNING)
en
la
posici6n
central.
oPoner en la posici6n ON el interruprordesilenciamier rtoen FM (F MUTING}.
798MHz 25-35d8
Variable 98MHz R104 Extraer el R104 cuando la operaci6n
de silenciamiento se
detieneoor encimade los 30d8.
.J 98MHz
no I modulada86dB 98MHz VR1 Ajustar
la
seffaldel
terminal
no. 10 a 19kHz (r1OOHzr.
oesMHz | ,uo,
Modulaci6n
estereof6nica 98MHz T1
(dentro
de
r90"
)
Minimizar la distorsi6n de la sefialdel terminal de salida
(OUTPUT).
Paso AM SG
(4o()Hz,30% de modulaci6nl Posici6n del
indicador del
cuadrante
Punto de
ajuste Procedimiento de ajuste
Frecuencia Nivel
'l 140OkHz 100dB 140OkHz TC5
Ajustar la salida
del terminal de salida
(OUTPUT) al valor
m6ximo.
26O0kHz 100d8 60OkHz r4
3Repetirlos
pasos
1
y 2.
14O0kHz 30dB 1400kHz TC4
56OOkHz 30dB 600kHz T3
t) Repetir
los
pasos
4 y 5.
19

Secci6ndeonda
larga
o Ponerel selectordebandadeAM (AM BAND) enIaposici6n LW.
Estator
Paleta
del rotor
Esp5tula
(GGK-066)
Estator
Paleta
del rotor
Fig.12-1 Ajuste del capacitorde sintonizaci6n
#ffi
4ilXru
X
f+f
/m_il\
X
Ajustar hasta que la seffal
demodulada en el terminal de
salida
(OUTPUT)
sea
lam5xima.
Aiustar
el generador
desefrales de AM (AM SG)al nivelde salida
de 30d8, y repetir
los
pasos
1
y 2 de arriba.
Tr.'7 I Ajustar hasta que la sefial demodulada en el terminal de
salida
(OUTPUT) sea
lam5xima.
Repetir
los
pasos
4 y 5 hasta
quese
logrelam5ximasensibilidad.
o
vR1-G
no. 1O-e
:O qHtr
lerTs lJ
rza a-
E a -rc6
is -rc7
no. 2---{ \-no. 1
20
Fig.12-2 Puntosdeajuste