(v) rrtoNeerl 3 4 5 6 8 9 ORDER NO. ARP-230-O sx-?;0e- MODEL SX.2O2 (SX.2O2LI COMES IN SIX VERSIONS DISTINGUISI.IED AS FOLLOWS: additional service manual. o Ce manuel d'instruction se refdre au mode de r6glage, en frangais. . Este manual de servicio trata del m6todo de aiuste escrito en espaiiol. CONTENTS 't. sPEctFtcATtoNs . . . . . 2. FRONT PANEL FACILITIES 3. PABTS LOCATTON . . . . . . . 4. BLOCK DIAGRAM 5. CIRCUIT DESCR IPTIONS 6. PACKING 7. EXPLODED VIEW AND PARTS LIST . . . 8. P.C. BOARDS CONNECTION DIAGRAM 9. SCHEMATIC DIAGRAM 10. ELECTRICAL PARTS LIST I 1 . D I A L C O R D S T R I N G I N G 1 2 . A D J U S T M E N T S , . , . REGLAGE A J U S T E . 1 2 t 5 1 7 1 9 20 FICINEEFI ELECTFICINIC GCIFIPCIFIATION a I, Mesuno 1 Ljhome, Mesu.o-ku, Tokyo 1::3, Jspen PICINEEFI ELEC:THONICB IUBAI lNC. 1925 E. oomnguez SE., Long Beach, Cahfo.nra go8lO u.S.A.. PIGINEEFI ELEC?FIC,NlC [EUnclPEI N.V. Keerbenglssn 1, 2740 Beve.en, Eletg,um PICI|YEEFI ELECTFIEINICB AUBTFIALIA PTY. LTE!. 178-1821 tsounde.v Fosd, Bnaesde, Vrcco. a 3195. a.usc.atr€ Y X O D E C . 1 9 8 2 P r i n t e d i n l a D a n AM/FM STEREO RECETVER Modol Volteg€ R6mrrks SX-202/KU AC12OV only U.S.A. model sx-202/Kc AC120V only Canada model sx-202/s AC11OV ,12OV ,22OV and 240V {switchable} General export model sx-202lYP AC240V only Australia model SX-202L/HE AC22OV only European continent model with AM,LW band runer sx-202LlHEZ AC220V only West Germany model with AM-LW band tuner o This service manual is applicable to the KU types. For servicing of tlte other types, please refer to the www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 1. SPECIFICATIONS Amplifier Section Continuous Average Power 0utput is 25 watts* per channel, min., at 8 ohms from 40Hertz to 20,000 Hertz with no more than 0.3%o tolal harmonic distortion. Total Harmonic Distortion (40 Hertz to 20,000 Hertz, 8 ohms, from TAPE) continuous rated power output No more than 0.3% 12.5 watts per channel power output No more than 0.15% No more than O.2o/" Intermodulation Distortion (50 Hertz:7,000 Hertz = 4: 1, 8 ohms, fror;'r AUX) continuous rated power output No more than 0.3% Damping Factor (1 kHz,8 ohms) 22 I nput (Sensitivity/l mpedance) P H O N O . . . . . 2 . 5 m V / 5 O k i l o h m s TAPE PLAY ' 150 mV/50 kilohms Phono Overload Level (T.H.D.0.1%, 1,000H2) PHONO . . 150mV Output Level TAPE REC . 150 mV S P E A K E R . . . . A , B , A s e r i e s B . o f f Frequency Response PHONO (RIAA Equalization) . 30Hz to 20,000H2t0'5dB T A P E P L A Y . . . . l 5 H z t o 5 0 , 0 0 0 H z + l d B Tone Control BASS . r9dB (100H2) T R E B L E . . . r g d B ( 1 0 k H z ) Loudness frntour (Volum control set at-40d8 position) . . +8dB (100H2), +6dB (10,000H2) Hum and Noise (lHF, short circuited, A network) P H O N O M M . . . . . . . 7 1 d 8 T A P E P L A Y . . . 9 7 d 8 FM Tuner Section *UsableSensitivity ...10.7dBf (0.9pV) 50dB Ouieting Sensitivity * * M O N O . . . . 1 5 . 3 d 8 f ( 1 . 6 p V ) STEREO .37.6d8f (21pYl Signal-to-Noise Ratio M O N O . . . . 7 5 d 8 ( a t 8 5 d B f ) STEREO 70dB (at 85dBf) Distortion (at 65dBf) M O N O 1 k H z . ' O ' 3 Y o S T E R E O l k H z . . ' 0 . 6 7 o 1 watt per channel power output C a p t u r e R a t i o . . . 2 . f t 8 Alternate Channel Selectivity (400kHz) . 50dB Stereo Separation (lkHz) . 35dB Frequency Response . . 30Hz to 15kHz,1! [ oa S p u r i o u s R e s p o n s e R a t i o . . . . . . . 7 0 d 8 l m a g e R e s p o n s e R a t i o . . . 4 5 d 8 l F R e s p o n s e R a t i o . . . . . 1 0 0 d 8 AM SuppressionRatio ...45d8 S u b c a r r i e r P r o d u c t R a t i o . . . . . . . 3 1 d 8 Muting Threshold .27dBt (6.3PV) Antenna lnput 300 ohms balanced, 75 ohms unbalanced AM Tuner Section Sensitivity lHF, Loop antenna 32OtN lm lHF, Ext, antenna 30pV S e l e c t i v i t y . . . . . 2 5 d B S i g n a l - t o - N o i s e R a t i o . . . . 4 3 d 8 l m a g e R e s p o n s e R a t i o . . . . 4 0 d 8 l F R e s p o n s e R a t i o . . . . ' 4 5 d B Antenna AM LooP Antenna Miscellaneous Power Requirements . , AC 120V, 60Hz Power Consumption . . . 125 Watts(UL), 150 VA(CSA) Dimensions . . . . 420(W)x98(Hl x214(D) mm 16-9/16(W) X 3-718(H) X 8-7116(D) in Weight (without package) . . . 4.3 kg (9lb 8 oz) Furnished Parts F M T - t y p e A n t e n n a . . . . . 1 AM Loop Antenna 1 Operating Instructions 1 *Measured pursuant to the Federal Trade Commission's Trade Regulation rule on Povnr Output Claims for Amplifier. *'FM muting functions with this unit when the signals are weak. The unit's internal wires are therefore treated so that the signals ara not muted when the sensitiviry is measured. NOTE: Specifications and design subiect to possible modification without notice, www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 2. FRONT PANEL FACILITIES O PowER swtrcH Push this to s1^ritch on and off the unit's power. Power is supplied at the depresed ( - ) switch position (ON) and turned off at the released (I) position (OFF). @ HEADPHoNE JAcK Connect the plug on the stereo headphones to this jack when listening to sound through headphones. @ ToNE coNTRoLs BASS : The bass is increased when this control is rotated clockwise from the center position and reduced when rotated counterclockwise. TREBLE : The treble is increased when this control is rotatd clockwise from the center position and reduced when rotated counterclockwise. @ BALANcE coNTRoL This is normally kept at its center position. lt is rotated when the volume of sound delivered through the left and right channels of the speakers or headphones differs. The right channel volume is reduced when the control is rotatd toward the LEFT from the center position while the left channel volume is reduced when it is rotated toward the RIGHT. O FuNcrtoN swtrcHEs PHONO : Press when listening to records. FM : Press when listening to FM broadcasts. AM : Press when listening to AM broadcasts. @ TAPE (ADPT) SWITcH This is depresed when using a tape deck or adaptor unit connected to the rear panel TAPE/ADAPTOR jacks. @ LOUDNESS SWITcH Depress this switch to the ON position when listening to sound at a low level of volume. This will enhance the bass and treble and give more life to the sound even at a low volume. @ voLUME coNTRoL Use this to adjust the volume of the sound delivered through the speakers or headphones. The volume is increased when this control is rotated clockwise from the minimum "0" position. @ TUNING INDIcAToR (TUNING) This lights up to indicate that an FM, AM station has been tuned in. @ srEREo tNDtcAToR (srEREo) This lights up automatically when an FM station broad- casting in stereo has been tuned in. @ SPEAKERS swrrcHEs These are used to select the speakers through which you will listen to the sound. The selected speakers are now working. A: The sound is heard from the speakers connected to the speaker A terminals on the rear panel. B: The sound is heard from the speakers connected to the speaker B terminals on the rear panel. No sound will be heard when SPEAKERS A and B switches are both released. This is the position at which the sound can be heard through the headphones. NOTE: No sund will be heard through the geakers when both the A and B switches are depressed if only one et of speakerc has been connected to either the A or B SPEAKERS terminals. @ FREoUENcY scALE This indicates the frequency of the broadcasting station ( F M , A M ) . The top level figures (88 - 108) indicate the FM band. The bottom level figures (55 - 1601 indicate the AM band. @ TUNTNG KNoB Rotate this knob to pick up stations (FM, AM). @ PowER tNDtcAToR/DtAL potNTER r6" L;N t';K t;K - I F U N C T I O N l - * ' - ' L FI-EI-E www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3. PARTS LOCATION Front Panel View Speaker knob AAD608 Front oanel assemblv ANM-292 AAD€O5 Phone jack AKN{45 NOruSr . Parts uithout part number connot be supplied. o ?he I morh found on some component ports indicotes the impottonce of the sofety foctor of the port- Therefore, uhen replacing, be sure to use parts of identicol desEnation. . For your Ports Stoch Control, the fost mouing items dre indicdted uith the morhs t* ond *. ,* CENERALLY MOWS FASTER THAN '. This classificotion shall be odjusted by each distributor becduse it depende on model number, temperoture, humidity, e tc. Bonnet A N E 4 I O Tuning knob AAA{84 Knob B (BASS, TR EBLE, BALANCE} AAB-317 Rear Panel View Earth terminal Complex terminal AKX-073 Top View A ** Fuse (T 1 .6A) AEK-121 A * Power transformer 1120v) ATT.942 e-- Knob A lvoLuME) AAB.3'I6 Function knob A {TAPE, LOUDNESS) AAD6O6 Function knob B { P H O N O , F M , A M ) AAD€O7 AC socket AKP-O39 Rear panel ADG-073 Switch assembly www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 4. BLOCK DIAGRAM F R O N T E N D ( 1 / 3 ) t- | 3OOO FM BAL I | 75o L-UNBAL l- GND AM I LooP L A N T l- ernv Lch REC i- rroro l-enor.ro I Rch REC L PLAY FM I STEREO Q 6 LED DRIVER FM MUTE F M I F A M P +82 ( 13.4V D 7 Q 4 AM FRONT END trsomvl ^: EqUALIZER AMP s r - 4 TAPE ( t/21 s r - 5 LOUDNESS + q 2 -(v4 l lz.smvl a 5[, lt5omvl. _ I fT", (3l4.,4/41 ( 2 / 2 1 O N - O F F O N - O F F TONE CONTROL vR2-2,2-3 s 2 - 2 S P . B (t/2'�t lr 4 . r v I PH ON ES TO R c h S PEAKE RS s r o l 1,, , 1,, ^ ;o\--l u I /tri >\- D 9 t 0 t l 3 2 1 ,^-2 U @ 9 @ \rs \ \ ./2, \ Z'7 22" | 727^)< 7 z'� www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 4 @ ? ' 2 0 A B C D 6 V.I hs s"-<))|\ \is-j= ^'/ -S=),)i q, Ks) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 8. P.C. BOARDS CONNECTION External Appearances of Transistors and lC's 3 2 DIAGRAM 2SC1923 COMPLEX Q3 A2 Ass'y GWM - 267 2SC 461 B '":":f'+irvp€N. -S:"- 2SA1115 2sc26lt3 a\r,, , ML " ' M , il lill.ll!jil" sTK4141-2S M521aP NJIT44558D C '.',-. det x It tt Jt ll @d 3 2 I M51533 L LED Ass'y www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 6 5 4 Q 7 q9 q0 Qro ot6 ofi qt7 32- O2 6 5 4 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com I 8 7 HEADPHOT\E JACK Ass'y B SWITCH€O UNSWITCHEO roow MAx. toow MAx. c D POINTER Ass'y I l 7 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3 2 9. SCHEMATIC DIAGRAM , .oo^ Io, F M I Lzsn uraaL L n"o A ","o A lil,", ot,, FM lF aMP B LED o l 5 - 1 7 c r 6 0 _ . - _ . - POW€R il/OFF 22olo eI' u'b F€r Ithv'l ,1". "to" L "." ffi l ' " , t-*; f--- - R E C l D c r 4 5 , r 4 6 A C H - 2 4 9 vR 3 RHAAAV5502 Q r , 2 , 7 , 9 o 4 o 5,6,13,16,r7 o a ot2 Qt4. | 5 2SC461 25K246 JCSd 2SA992 2S0aao J4101 o r , 3 o 2 D4 o a D9 0 1 1 r N 4 t 4 8 O 1 2 i N 4 1 4 8 wz- o75 0r3,r4 roE 2FO 2-1K261 0r5 8CR6AM-4 K Z L 1 4 O D t 6 S Z - O 2 ? R B 4 O 2 D 1 7 , 1 8 t N 4 1 4 8 w z - i 3 0 c r 5 7 ! * c r 4 o I """ r "I',2, r,'' , L c t 2 5 4 R r 4 5 ' + T z z o l r o k J:i | "' 47' ;F --c!-r rook I crr4 .'; a:- 3 2 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 6 5 4 A I o t 3 , r 4 PR OTECTOR 9! - OFF oN - gfr ON - OFF - - - a3 FM IFIOET A MPX NOTE: The indicated semiconductors are representatiue ones only. Other alternatiue semiconductors may be used and are listed in the parts list. L RESTSTORS. Indietd in o, %W, 7.W,i5% tolerance unl6s otheMis notd k; k!) M; Ma, lF); !1%, lcl: !2%, (K),110%, (Ml; i20% tolerance 2, CAPACITORS: Indicaid in capachy kF)/voltage (V) unle$ otheBis notd p; pF. ldiBtion whhdt voltage is 50V except etftt.otytic capaci 3. VOLTAGE E; Sienat voltase at ( 25 W+ 25 W,8a)outplt {1kHz) Fli DC voltase (V) at no j.put sisnal - Valuein{ ) bDCvoltageatratdporer. 4. OTHERSi + , Signal route. _ A i^Adiusting po,nt. I re /n matk round or toFe componenl pans indic.rs the in podanc-e of rhe salety lactor of the pdn. lh.relore, whcn repttrrng, be ere to u* pafts of identical designarion. X markd capeitoB and rsistoE h&e psds numbe6. This is the basic $hmatic diagram, but the etual circut may vary due to improvemenb in d€sisn. L E o A 3 r r y !--"-;-;-t I 06 aEL- 40? : I 0 6 ! ! * : 0 . L--:"* -J POINTER A3s'y SITCHES: COMPLEX A.sry S l - t : F U N C T I O N ( P H O N O ) s r - 2 F U N C T I O N ( F M ) s l - 3 | F U N C T I O N ( A M ) S I 4 T A P E M O N I T O R 5 1 - 5 L O U O N E S S 5 2 _ 1 S P E A K E R S ( A ) 5 2 . 2 : S P E A K E R S { 8 ) O U T S I D E O F P C B O A R O S l O l : P O W E R *-1 I B oN - gfI 9! - oFF oN - 9!r o N - 9 [ O N _ O F F "*.;'-l HEAOPHONE JACK A33'y The undedind indi@tes the switch Dosition. sror a COMPLEX AsBry (3,/3) : Furor AEK-r?r I A r,o, ort-"., ---------1, A swrrdEo uNswrTdED =-^., roow MAr roow Md -;fi,' - _ _ _ J ARrsT ro q r 4 8 E 2 F O - o 2 7 4 1 4 8 I 5 2 S U J e L Y X S F L__ I 5 4 6 J' I i": T_T ? l - 2 er o3*'ut* LEO cr8; t-- reooo I et {"at r 5 k / 2 5 --1 F S W I T C H A 3 . ' y 1 6 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 1O. ELECTRICAL PARTS LIST NO?ES; o ll/hen ordering resicfors, first conuert resistance wlues into cod,e form as shown in the following examples. Ex. 1 vthen there are 2 effectiue digits (any digit apart from 0), such as s60 ohm and 47h ohm (tolerance is shown by J = iVo, and K - lOVo). 560a 56 x 10t 561 . . 4 7 h a 4 7 x lO3 473 . . 0.5{t 0 R 5 . . RD%PS E|6tflr RD%PS @AgJ RN2H oBEr t ( } 0 1 0 . . a s r P o t l o K Ex. 2 When there are 3 effective digits (such as in high precision metal film resis- tors). 5.62ha 562 x loo 5621. . . . RN%SA EGiltrDF o The b, marh found on some component parts indicates theimportance of the safety factor of the part. Therefore, when replacing, be sure to tlr,e parts of identical deeignation o For your Parts Stoch Control, the fast mouing items are indicated with the marhs ** ond *. ** GENERALLY MOVES FASTER THAN *. This classificotion shall be adjusted by each distributor because it depends on model number , temperuture, humidity, etc. Miscellaneous Parts List P.C. BOARD ASSEMBLIES lVlark Part No. Symbol & Dccription CEA 101M 35L CEA 221M 1OL CEA 471 M 6L CEANL 2R2M 50 coMA 122K 50 coMA 562K 50 coMA 153K 50 coMA 333K 50 caMA242J50 coMA 822J 50 coMLA 124K 50 cosA 182J 50 cosA 511J 50 ccDUJ 050c 50 ccDsL 270J 50 ccDsL 121J50 ccDSL 101J 50 ccDsL 22'�tJ 50 ccDcH 150J 50 ccocH 220J 50 CKDYF 1032 50 CKDYF 223250 CKDYX 47PM25 CKDYB 222K 50 ACG{19 cl50 cl47, Cl60 cl43 cl01, cl02 cl31, Cl32 cl5, Cl33, Cl34 cl9, C20 c127,C128 cl07, cl08 c109,cl10 cl29, Cl30 c l 8 c34 c7 c125.C126 c30 c113,Cl14,Cl17,C118 cl03, cl04 c2-c5, c23, C29, C32, C40, C42 c 6 , c 8 , c l 3 , C 4 3 , C l 1 5 , C l 1 6 , c144,c152, Cl56, C157 c39, C141 , C142 c41 C148 ceramic (0.01/1 50Vl Mark Part No. Symbol & Deccription GWM.267 OTHERS Mark Part No. Complex assembly Headphone jack assembly LED assembly Pointer assembly Switch assembly Symbol & DGcription AAAAAA Complex Assembly (GWM-267) CAPACITORS Mark Part No. Porapr transformer ('1 20Vl Push switch (POWER) Ceramic (0.01/ACl25V) Fuse {Tl .64} AC power cord AC socket Symbol & Description * ATT-942 ** ASG-541 ACGOl7 ** AEK-121 ADGO73 AKP.O39 T101 s101 c501 FU1 01 c24 c36 ACH-249 CEA 1O1M sOL CEA R22M sOL CE A O RlM sO L CEA R47M sOL CEA OlOM sOL CEA lOOM sOL CEA 22OM 25L CEA 47OM 1OL CEA 47OM 25L CE A 1 0 1 M 2 5 L C1 45, C1 46 Electrolytic (3300/42V) cl 39 cI1,C21,C22 c't2 cl0 c14, C17, C27, C111, c123, C124 c16, C28, C31, C38, cl20, c138, Cl54, Cl55, c33, C121 , C122 c26, Cl 05, C1 06 c135, C136, Cl37, Cl51, c9, c37, Cl40 c 1 1 2 , cl 19, cl61 cl53 1 7 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com RESISTORS Note: When ordering resistors, conuert the resistance ualue into code form, and then rewrite the part no, as before. Part No. Symbol & Description COILS AND TRANSFORMERS Mark Part No. Symbol & Description * * * ACT-162 ACT€02 RHBSAVSSO2 ACN-131 ACN-140 RD'4PMFL trOtr RD/.PM ootr RDl/8PM otrE J VRl Volume (260k1 VR2 Volume assembly (100kx2, 1M) VR3 Semi-fixed (5k) Rl66 Wire-wound lO.22x2,Vt'll R187 Carbon composition Q.2M,1l2wl Rl2, R155-R159, Rl73 R3E, R36, Brls, 8116, Rl47-R154, OTHERS R1 60-R165, R167. 8 1 68, R172. P.17 4, ATH{53 ATH.O58 ATEO58 ATB{85 ATBO84 ATFO83 ATFO84 Part No. L1 , L2 AF choke coil L3 Micro inductor Tl FM detector transformer T2 AM antenna coil T3 AM oscillator coil F1, F2 FM ceramic f ilter F3 AM ceramic f ilter Symbol & Description A A 1\ SEMICONDUCTORS IMark Part No. Rl75, Rl80 Other resistors Symbol & Description ** ASG412 AWBO44 AKX{73 AEC-940 PBZ30ZP060FMC ABA.271 Headphone Jack Assembly Mark Part No. 51 Push switch (FUNCTION, TAPE, LOUDNESS) FM Front+nd Complex terminal B ivet Screw (3 x 6) Screw Symbol & Description ** ** ** ** A * * a * * * 25C461 (25C19231 sTK4141-2S M51533L-B M5218 P (NJM4558DX} 25K246 (25K34l 2SD880 (2SD3131 2S4992 {2SA7265) JC501 (2sc2603) JA101 (2 S A 1 1 1 5 ) 1 N4148 (us1035) (1520761 (1Sl 555) RB4O2 1 OE2F D BCR6AM4 2-1K261 KZL140 s2427 wz-l30 (MZ-1301 w2475 (MZO75l 01, 02, 07, 09 ol 1 o3 0 1 0 o4 012 o8 05, 06, 013, 016. 017 014, Ol 5 D1, D3, D12,D17, D18 D9 D l 3 , D l 4 D 1 5 D4 D8 Dl6 D l 1 D2 AKN{45 RD'/4PM trtrtr J LED Assembly Mark Part No. Phone jack (PHONES) R 1 7 6 - R 1 7 9 Symbol & Deecription * AEL4O6 * AEL-407 Pointer Assembly Mark Part No. D5 (Red STEREOI D6 (Green TUNING) Symbol & Description A * A * A * * * * * * AEL4Os AAF-I 18 Switch Assembly Mark Part No. D7 (Red) Pointer Symbol & Description 1 A ** SUJSLYXSF 52 Push switch (SPEAKERS) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 1 1. DI AL CORD STR I N G I N G 1. Remove the bonnet. 2. Remove the tuning drum tuning capacitor. 3. fie one end of the cord inside the tuning dmm. 4. Rotate the tuning capacitor right around until the rotor blades are fully intermeshed. 5. Secure the tuning drum back onto the tuning capacitor shaft, making sure that the securing screw B faces 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 C and D in that sequence. 7. Wind the cord around the tuning shaft 3 times. 8. Pass it over pulley E, wind it around the tuning dmm 1 time, and finally tie it to the spring hook F so that it is tensioned. 9. Tum the tuning shaft, ild check that the cord moves smoothly. 10. Cut off any excess cord. 11. Turn the tuning shaft counter-clockwise as far 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. 14. Finally apply the locking paint to the cord securing positions (stud A and spring hook F) and the dial pointer connection. Starting point I I t-T-t-l r g II Dial pointer from the shaft of the to the stud A located E nvr Tuning drum www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 12. ADJUSTMENTS FM Tuner Section o Check that the dial pointer indicates a starting point. o Connect the SIGNAL meter between terminal no. 1 of complex assembly and the ground. o In principle, no adjustment should be made on FM tracking. (See page 2I, if. necessary.) . Set the FM switch to ON and connect terminal no. 6 to the ground. NOTE: Connect the MPX SG fo the FM SG external modulator deuiation, Pilot (19hHz) +7.5hHz deuiation. terminal and set the modulation of Main (lkHz, L+R) t67.5kHz (TC1) TC7 TC6 T6 TCs \ T 2 @ / (r4)----_@6 ,/ _ TC4 TC3 (rc2) @trst SuoFT3 \___ N o . 1 -.-No.4 @vns No.6-1_! Y T 1 Adjustment points in brachets for SX-202L (Low Waue) only. Step FM SG (400H2, t75kHz deviation) Position of dial pointer Adjustment point Adjustment procoduro Frequency Level 1 98MHz 66dB 98MHz T 1 set the output of the REc ouT terminal to the maximum value. 2. 98MHz 46dB 98MHz T6 Set the SIGNAL meter to the maximum value. 3. 98MHz 66dB 98MHz T 1 Adjust the output of the REC OUT terminal distortion to the minimum level. 4. Disconnect terminal no. 6 from the ground. 5. 98MHz I OOOB Not modulated 98MHz VR3 Set the signal of the terminal no.4 to 76kHz lt2OOHzl. 6. 98MHz I * Stereo m 66dB odulation 98MHz T6 (within r90" ) Minimize the distortion of the REC OUT terminal signal. Fig. 11-1 Adjustment points www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com FM tracking NOTE: (For SX-202L IHEZI . When 87.6MHz can not be receiued with thb unit, ad,just the oscillator (TC7) and then it can be received. It is prohibited, to receiue 87.2MHz or below and, so after having adjusted the oscillator, make sure that it does not receiue 87.2MHz or below. AM Tuner Section o Check that the dial pointer indicates a starbing point. o Turn ON the MW switch. o Connect the SIGNAL meter between the terminal no. 1 of complex assembly and the gxound. Long Wave Section (SX-202L/HE, HEZ only) o Set the AM BAND switch to the LW position. Step FM SG (40OHz, t75kHz deviationl Position of dial pointel Adjustmont point Adjustment procedure Frequenry Lewl 1 lO6MHz 1 odB 106MHz TC7 Set the SIGNAL meter to the maximum value. 2. TC5 3. TC6 4 . Conf irm that the dial pointer does not get out of position at 106MHz and 98MHz. Step AM SG (400H2, 30% modulation) Position of daal pointor Adiustment point Adjustment procedure Frequoncy I Level I 1 395kHz 1 00dB 1 395kHz TC3 Set the SIGNAL meter to the maximum value. 2 . 603kHz 100d8 603kHz T3 J . Set the AM SG to 3OdB output level, repeat steps to 2 above. 4 1 395kHz Set the SIGNAL meter to the maximum value. 5. 603kHz 6. Repeat steps 4 to 5 until maximum sensitivity is attaineo. Setp AM SG (40OHz, 30% modulationl Position of dial pointer Adjustment point Adjustment procrdure Frequency Level I 254kHz 1 00dB 254k{z TC2 Set the SIGNAL meter to the maximum value. 2. 1 64kHz 1 00dB 1 64kHz T5 3. Set the AM SG to 30dB output level, repeat steps 1 to 2 above. 4 . 254kHz 50dB 254kHz TC1 Set the SIGNAL meter to the maximum value. 5. 1 64kHz 50dB 1 64kH z T4 6 . Repeat steps 4 to 5 until maximum sensitivity is attained. + . - www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com