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SECTION 1
SEFIVICE
MANUAL
TABLE OF CONTENTS
I. II. ÍII. IV. V.
VI.
VII. VIII. IX.
T E C H N I CD A T A. . . . AL D I S M A N T L I N G U N I T. . OF CONTROLS P R I N C I P A L R T SO C A T I O N S PÁ I V À R A C T OT U N E R N D P R E S ET U N I N G Y S T E M . . . . R A T S OR l . V A R A C T T U N E .R . . . . . . . 2 . P R E S E T N I NS Y S T E M, . TU G .. TUNER DJUSTMENT A I. F MS E C T I O N J U S T M E.N T AD .. 2 . L WS E C T I O N J U S T M E N .T AD . 3 . M WS E C T I O N J U S T M E . . T AD N . MAINAMPADJUSTMENT ,... TUNINGCORDTHREADING.. C L A S S I F I C A T I O N A R Í O UP . C O A R D . . . . . . . S B O FV . I. RELATION P,CBOARDTITLE AND IDENT]FICATION OF NUMBER. 2 . C O M P O S I T OO V A R I O U S C B O A R D I FN P.
.. ........ 2, ., ,..... 4 .......... 5 ............... 5 ............,.,. 6 .............ó ,.-.,..,.,.-,9 ............I0 .,........I0 ,.,.,,..,12 ..........I3 . , . , . , , . , . . . . . . . 14 . , . , . , . . . . . . . . . . I5 .......16 . . , , . , . , . , , , , . , . Ió ...... _........ _17
FoÍ baÍc adjusimênrs, ne.suring nerhoG, 6d operari.g prin.iptes, reter to CENEÍ|ÀL OPERÁTING PRINCIPLESAND ADJUSTMENTS.
I. TECHNICAL
PoWER AMPLIFIER SECTION
DATA
POWER OUTPUT CONTINUOUS 2{HÁNNELSDRIVEN POWER BANDWIDTH OHF)
SIGNAL TO NOISE RATIO OHF) RESIDUÀLNOISE CHÀNNEL SEPÀRATIONíHF) DAMPINC FACTOR PHONO AUX
14 Wattsper chdnel, nininun RMS,at 8 ohms from 40 to 20,000Hzwilh no more thm 0-8%lotal tamonic distoilio.. l5 Hz to40 tHzl8 ohns. dislortion withiÍ 0.8%
Les rhán0.8nV al 8 onns
PHONO Betler rhan50 dB at 1,000Hz More than 30 (l kHz.8 ohmt
ottrPuT
SPEAKERS A, B (4 to 16ohmt/Á+B(8 ro 16 ohm9 HEADPHONE
PRE ÁMPLIFIER SECTION
INPUT SENSIÏVITY/IMPEDANCE PHONO AUX TAPE MONITOR
PIN: 150nV/100 k óhns D I N : l 0 n v / 1 8 0k o h m s PIN:150óV/l00kohns m D I N : 1 5 0 v / r 0 0k o h m s
30 Hz lo 15 kgz ll dB l0 Hz lo ?0 kHz +0 dB, 2 dB
OTITPUT I'EVEL/IMPEDANCE TAPE REC
PIIONO (RIAA) FREQT'ENCYRESPONSE TUNER/AUX/'TAPEMONITOR TONE CONTROL LOT'DNESS CINTROL
BASS TREBLE + 1 0d Ba t 1 0 0H z ,+ 5 d Ba t 1 0k H z (Volume conbolsetal-30d8 position)
FM TUNER SECTTON
FREQUENCYRANCE 8 8 M H z r o 1 0 8M H z
SENSITIVITY OHF)
CAPTURERATIO SELECTIVITY (IHF) IMÀGE REJECTION IF RE.'ECTION SPURIOUS REJECTION AM STJPPRESSION SIGNAL TO NOISE RATIO HÁRMONIC DISTORTION TT'NING INDICATOR STEREOSEPARATION SUBCARRIERSUPPRESSION ANTENNA INPUT IMPEDANCE
1 . 5d B
M o r er h a n5 t d B ( 9 8 M H z )
Morethan70 dB (98 MÈz)
Móre than ?0 dB (98 MHz)
5 0d B 60dB
MONO STEREO Le$ thàn 0,3%i 100%nodtlation) modulÁ1ion) Les ihan 0,6%(1009',
a Cnter Turiq meter
More than 40 dB (l tHz)
F
?5 300 ohns balanced, ohmsunbabnced
AM TUNER SECTION
FREQUENCYRANGE SENSITIVITY (IHF) SELECTIVITY OHF) IMAGE REJECTION IF REJECTION SICNAL TO NOISE RATIO MW: Moie than 45 dB, Lwr More thd 50dB 5 2 0 k H z 1 01 , 6 0 5 g z k 1 5 0k H z t o 3 5 0k H z '
200Àrv/n(tEr anlnna) 20liv (ext.antêntu) 300lrv/h (barantenna) 30llv {ext.antÈnM)
MW: More than 30 dB LW: More than 30 tlB More than 55 dB (l MHz) More tho 35 dB (240 ktlz)
SEMI{ONDUCTORS POWERREQUIRDMENTS
DIMENSIONS WETGHT
T Í a Í n í o r s :2 7 , D i o d e s2 5 , F E T ! : 2 , : C S ÁU L a . d L A h o d e l s r 2 0 V , 6 0 H z , l CEEnodeh: 220V,50 Hz Olhernodels: 110/220l240V, 50/60Hz swilchable 440(w)x l2s(H) x 26s(D)nm (17.3x 4.9x r0.4") 6 . 2k e( l I Tl b t
'
Forimprovemnl purposes, specilications dsisnare snbj.ct tóchanse{nhost nolic, and
DISMANTLING
OF UNIT
pleáse disassembly. In case of lrouble, e1c. necessilaring in the order show. in pholos.aphs.Reassemble disassemble
scREws
scREws
. .
- :
.
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al
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III. CONTROLS
-n r=
FIl
VOLI]ME
Fis.1
Controls
IV. PRINCIPAL
PARTS
LOCATION
[.lr .-l
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r--Eï
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lÊ.' I
nn 6U
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Fig.2 Top View
Fig.6
Block Dias.am
V,R PC EOARD aÁ-5t57
IC FC EOARD AÁ-5r56
t :
L
I I
V
TOUC|I SW|ÍCH PC BOARo ÁA-5r58
t - FiE.7
3) Acrual Operation Fig. 5 is a cÍcuit diagram of the high frquncy amplifier stase only of a circuit which is actually used. CondenserCl and varactor diode Dl in the diagram are equivalent to the variable con, denser of an ordinary FM fÍont end. As can be understoodfrom Fig. 3, Dl variesthe capacitance in a 4 to 16 PF ranSeby means oí inversebias voltage. This capacitance and condenser Cl combined caFcitance forÍns the Íesonance circuit with coil LA. Consequently,it is satisfactory if at low.esonanceíÍquency,the voltagesupplied to the varactoÍ diode dclines,and at hid resonanc frequency, the voltage supplied to th varactor diod increass. This voltage variation method with variabl resistor, êtc., oprates in the sam way as a regulaÍ variablecordenser.
This method uses a local oscillatorcircuit and frequency mixercircuit,andbiasvoltage applied is to the varactor diode for stariooselection is and calleda varactor tuneÍ. Pleas rferto the scheÍ,atic diagran actuai foi circuitdrawing.
\/.
\'ARACTOR
TUNER AND PRESET
TUNING SYSTEM
I. VARACTOR TUNER
in tuneris th lunersystem whichvaráctor A varactor diodejunctioncapacitance variedby means the is of diode for station inverse bias value appliedto the selection. By employinga varactordiode.tuning which is samea! ordinary vaÍiablecondenseÍs),stem condenser by cán bê madwithout usinga variable only. changing controlvoltage l) Features a) When used in an FM tuner, th front end can than \{hen compaÍed with a be made smallr variable condenser. b) Station selector butaon positioningis not limited.
c) Slation selctionby remote control is possible. d) Ideal voltagecan be set for a certain reception frequency beforehand, and preset tuning can b efectd by successively switching the e) If control voltsg sweep is at ideal speed, automatictuning (seàÍchtuning) is posiblePowr consumption is about the same as a 0 variablecondenseÍ system.
ï f, g
Fig. 4
Tuning circuit employinga vaÍactordiode
q
Fig.5
Example ofHigh Frequency Cncuit AmplifierStage
I
+
INVERSE VOLTÀCE Fig. 3
2) VaÍactor DiodeCharacteristics As foÍ varactordiode characteristics, shown as in Frg. 3, cápacitance r( changed chm8ein c by inverse voltageVR. Further, ifthis varactor diode jn is used a tuningcircuit,the following conditions
Cmax + CD Cmin + CD
Cmai, Cmin arc th maximum and minimum valuesof varactor diode capacitánce change. CD is the sum of stray capacitanceand trinmer capacitance. is overl_5 bcause broadcast K FM frequency rangeis 88 to t08 MHa Fig.s4(a) and4(b) showthe actualusage method.
iti!È!
ruMre
\.
t' t ii
i
i
l
tri
t
I
Fig. 8
TO VÀRIABLECAPACITOR
lcr lJPclo09c TERMTNAL@@@@
Fig. 9
2. PRESET TUNING SYSTEM
l) Preset StationSelecrion For preset íatio. selection, thereis a mechanical and an eleclricalmerhod. Theseare memory equipme.t and seiection equipment enabling desÍedstationslection beforehand selecting and thes pre-setsrationsby simply dpressing the respective switches. An ordinarycar redio,etc. utilizesa mechanical station selection system wherein mechanical variationis by mea.sof a variable condenser or posilioning dustcorcinside coil. ofa a Model AA,1010L utilizes an electricalsrálion selection systemand employs varacror the tuner explained a previous in item. 2) An example a stllion selection of system employ" ing a varactor tuneris shown Fig.6. For skrion in selection,push switchesare used for slecuon of voltage supplyto the varactor tunr. However, in the AA.10I0L, thesestation selection push switchesare puÍe electronicsystemsensi.touch
3) Sensi-touch EmployedPresetStation Selection System Operation The circult shownin Fig. 7 is th conlrolvoltage genêratinS preslvolumeand sensi-touch circuir. Fig. 8 sho'rrs insideof circuit sensi-touch the IC which includethe 4 channel circuitry. FPCI009C Terminals thÍou8h 17 arethe input teminals; 14 .ermina@, @, @,-a @ arêthestation ls selection output terminals; and terminalsO , , @ , and O arerhepilot outpul terminals. @ When channêl I sensorelectrodeis louched, voltageis snppliedto the IC as rhe input signal throughfmger(body) resistance trminal @ . at Then, the impedance loweredat IC station is selectoroutput terminal @ and current flows ai shown the arrowmarksin Fig. 9. Consequby enlly, because supplyvoltage10 the varactor the runer diode is changed the dividingratio of by Rb and Rc, station selection possible is by mansof settingthe prsetvolumes beforehand accoÍdrng the deriÍed to broadcarl tÍequen.res.
t
VI- TUNER ADJUSTMENT
IIIJLTI FUNCTIOI{ BOARD PC AA-5I59À
o
"@
@ Ë E
@aD @
@.
FM IUNING METERÀOJ(LO*ER CORE) FM OISTORTION (I]PPENCONEI ÁDJ
i"t
o. aà. o;
@.
K-l t:J
@.
@"TP
rkHÍr I
E
rca
.o
i:ió'"
FREOUENCY ÀOJ
Á0
7{A^ \<9r
"op ro rà aà(à @ @@*@oo @ o @ (s)
a Ë
à È E 5 .À,.À.n
p"@.@
ó",,1"R?".1-,
tr H:
Íol
Fic. l0 Multi Function Board P.C AÀ-51594
1. FM SECTIONADJUSTMENT(RefeÍ to Fig. l0)
IF Coil
IF Cóil
Tune oÍly noisewithour inlerfereÍceof hroadcasls.
2
3
108 MHz,ó0 dB (mono) input, Lers than 0.3%distoition
t0
I f Tunins Mler iÍdicalion is nol al @ler posilion, reptl íeps 2 a.d 3 above.
108 MHz,60 dB(moÍo) input. EÍor: within !250 kgz.
108 MHz, L6s than l2 dB
vR3,5 tB
88 MHz, ó0 dB (nono) inpul. Eror: WÍhin 1250 kHz.
88 Mttz, Les ihan 12dB 8
98 MHz. Lessthan 12 dB 9 EÍor: Within 1250 kHz.
vRl,I kB l0 19.00 kHz
ConnectFrequency Counter
ll
98 MHz.60 dB Gtreó)input. Whenihe Íro i.dicator ràilsto light, this mans thal broadcast nol beinsÍeceivd n
vR2, I kB t2
40 dB
98 MHz,60 dB G1ro) lft channelinpul. Distortion Faclor ruí be lessthan 0.6%. 98 MHz,60 dB Glereo)
tl
40 dB
Distortion factor musl be
Chart I NOTEI. ln the eventthat the distortionfacrors Steps and9 arenot tess in 8 than3%,re-adjust FroÍt EndTrimÍn. Condensers TCR.nd TCA to obtaina miniÍnum average dislortionfactor at 88,98, and 108MHz (san distortion factorat all thÍeeDoints). PLL IC FreeRunning Frequenry Ínustbe an exact19.00 kHz. Ifthe distortion factoris not less than0.ó%, tuÍn IF Coil in StepI wjthin 1/2 turn rnd adjusr.
NOTE2. NOTE3.
VII-
MAIN
AMP
ADJUSTMENT
i-*i i-*i 'ÍxI' '[[r
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-CF+
7 Á@
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pp v
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P{JSH swrrcHPr soaRD aÀ-5l55 @.
n.=
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m
Ul
Fig. 12 MainAnp P.CBoaÍd AA'5106 ldlingCuíent Adjultment(RefeÍto Fig. l2) and F2 PowerFuses 2A (left channel) F3 l Remove 2A Gight channel) and connect an aÍuneter to input, adj$t Senifixed Resiston 2. At non.signal VR4 3008 oft channel) aíd VR4b 3008 (Íieht channel) obtaina 20 mA idlingcuÍÍent. to
VIII. TUNING GORD THRTADING
!Es
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:EE
F
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z
15
I
IX.
I.
CLASSIFICATION
OF VARIOUS
P.C
BOARD
RELATION OF P.C BOARD TITLE AND IDENTIFICATION NUMBER
P.C Board
ofP.C Board Number À4.5159À
MFCP.CBoard MainAmp P.CBoard
Touch Switch P.C Board Volume P.C Board
AA-5106
AA 5158 AA-5157 AÁ.5156 AA-5155 AA-5159C Chart 4
IC P.CBoard
PushSwitch P.C BoaÍd
LED P.CBoard
2.
COMPOSITIONOF VARIOUS P.C BOARD AA.5'59B P.C & AA.5I59A JUMPER BOARD P.C I) MFC BOARD
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P,C 3i TOUCHSWITCH BOARDAA.5I58
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,1) VOLUMEP.C BOARD AA-5t57
a n - so s @
METER{+)
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SWITCH BOARDAA-5I55 & LEDP,CBOARDAA-5T59C P,C ó) PUSH 9 P d I Áa-to6Á
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HOW TO USE THIS PARTS LIST process on indMdual blocks based assembly lÈt by Thisparts is compiled various paÍtsnumber, numbI, modelnunberin delail. and paÍs, please describe serial 2. Whnordriog 3 . How to read list. of with The Íefrnce numbeÍcorresponds illustration photo number thal paíicular oÍ paÍtslist. wilh .he Figul Number. This numbeÍ coÍÍesponds with the individualparts index numbeÍ This numbrcorÍesponds in ttut figure.
A small "x" indicates the inability to show that particulaÍ paí in tl Photo or lllustration.
Schematic DiagramNumbeÍ of individual (not reqund partsordet foÍ part requjred. -Quantity of paniculár
t
FLFvI|EEL BLocK #ll F B r 2 - lI s x 3 o o 4 2 s l y v n e e l l o . ka s y . c o n p . R D o r r 3
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on w Views 4. The synbol numbrs shown the P-C.Boardlist canbe matched h theConposite cfthe Schmatic Diagram Service or Manual. ofcomponnts "Common 5. Please partsorders. List for SeniceParts"for Resistor utilizesepaíàte themivith the paÍs ofthe parts andpaÍtsname, canbe confirmed compa.ing etc. by 6. The shape Parts shown the Electrical on TableofP.C.Board. 7. Both the kind of part and installation positioncanbe determined the Parts Number. To by determine whrea partsnumbeÍis listed,utilizePansIndexat endof PansList. It is necessary of all to find th PaÍtsNumber. Thiscanbe accomplished using first by the Reference Numberlistedat right of partsnumber the PartsIndex.(meani.gof ref. no. in outlinedin Item 3 above). "PriceList fo. PaÍs" to detrmine 8. Utilize separate unit price- The mosl simple methodof parts Priceis to utilte the refrncenumber. finding
CAUTIONT l.
Whenplacingan order for paÍs, be su.eto list the paÍs no. modelno., and is descÍiption. ThereaÍeinstances whichifany ofthis informaiion omitted, in wÍongparts will be delivered. paÍtscannot shipped the be or
in 2. Please cárefulnol to makea mistak the pads no. Ifthe paÍsno.isi. be eÍror,a partdifferent trom the oneordered maybe delivered.
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Parts No. EO645838 EO650373 EOó50384 OSCCoil RWR41497A AM-IFTrans. RLC41543A 468kHz 468 kHz AMIF Trans. CFU-085-D RotarySW. SR26N l-3-5 30KC RotarySW. SR26N30 KC Push Sw. 3FT-0001FF2120 Push sw. 5FT-0001DF3620 Doubleaxial2 thÍow Vol(FR) DJ80D250kBx2
Note
as Same AA-1010
ES24035s Ê,s240287
8S240096 85240276 EV24U34 8V240445
aixal2 throwVol. CM70R20 kcx2 Single I00 Pre-set (w/knob)LFQDRS04 kB Vol. Vol. V10K8-4-25kB Semifixed Vol. V10K84.2 I kB Semifixed Plate 5PÀntenna Têrminal Push Knob C A5-5022 Single Knob AA.5250 $me asAA-1010
8YL299 ts
8V499364 8V484863 E2655t8'7
s8607t38 sK64687 t sK644670 sK645208 sK646828 s2645243
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asAA-1010 Same
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SCHEMAÏIG
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DIAGIFIAM
DIAGRAM AA,IOlOL CONNECTION DIAGRAM AA.'OIOL MFC SCHDMAïTC AA,IOIOL MAIN AMP. SCHEMATIC DIAGRAM AA-IOIOL VARACTORTUNER DIAGRAM SCHEMATIC
36
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No.4-r 1540214A
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