SP550S(RU) Service Manual.cdr
Contents
1. u 1 ji 2 j T SW Speaker Fi Sub AMP Board 7 R308 3 rom Sub oard ys 3 e e 3PIN GND 4 20 2W 4PIN VD303 CD VD301 V301 R30 74 1N4148 4N4148 cil e 9014 56k en VD302 b 6 8V c302 47u 25V v303 aL S805 2PIN NOTE When repairing the poweramplifying board make surethat the IC isfixed tothe bigradiator board closely and rightly without any inclination in assembling the Power IC N407 408 N409 and N410 A silicon oiled mica spacer needs to be placed between the IC and the big radiator board When fixing the screws of the Power IC N407 N408 N409 and N410 theinsulating spacers need to be placed between the screws and the Power IC A multimeter can be used to detect whether the insulation is effective or not Otherwise a short circuit may be resulted to burn outthe Ics SP550S SERVICE MANUAL DETAILED CIRCUIT EXPLANATIONS 2 INPUT BOARD MAIN PARTS LISTOF THEINPUT BOARD MAIN PARTS LIST OF THE INPUT BOARD NO LOCATION SPECIFICATIONS DESCRIPTION SPECIFICATIONS PART NUMBER 1 1BS Y02 1 Terminal Socket AV6 84 3C C1 3 xp2 Raft Cords 7P130 2 512 6 SHIELDED WITHNEEDLES PIN7 GROUNDED e SCHEMATIC DIAGRAM OF THE INPUT BOARD Signal Source To Power AMP Board _ N O RANON 7PIN DETAILED CIRCUIT EXPLANATIONS 3 FRONT PANEL S CONTROLBOARD MAIN PARTS LISTOF THE2. 1N1 O Pes xl O OUT1 10dB Step O OUT2 1N2 O 1N3 O O OUT3 10dB Step O OUT4 1N4 O 1N5 O O OUT5 10dB Step O OUT6 1N6 O O Vcc CODE10 O REF O O O DGND SDA SCL GND SP550S SERVICE MANUAL THE EXPLANATION FOR KEY COMPONENTS CPU IC AT89C2051 8 bit microprocessor POWER IC TDA7370B 4 channel audio amplifier PDIP SOIC RST VPP 1 VCC RX1 P3 0 2 P1 7 TX1 P3 1 3 P1 6 XTAL2 4 P1 5 XTAL1 5 P1 4 INTO P3 2 6 P1 3 INT1 P3 3 7 P1 2 TO P3 4 8 P1 1 AIN1 T1 P3 5 9 P1 0 AINO GND 10 P3 7 Pin structure Features Voltage 2 6v Max 6 6v Max I O current 20mA numbers 15 RAM 128 bits FLASH EEPROM 2K e Max work efficiency 24 MHz OUT 3 OUT 4 INPUT 3 INPUT 4 CLIP DET S GND PW GND STAND BY SUR INPUT 2 INPUT 1 VCC OUT 2 OUT 1 oan ck c c OFNWA 8 6 5 4 3 2 1 Pin connection Top view Features Voltage 18V Max 28V e Max peak current 3 5A e Output Power Vs 14 4V RI 4 ohm THD 10 f 1kHz 6 5w 4 e Full protection function THE EXPLANATION FOR KEY COMPONENTS POWER IC TDA2003 POWER IC LM1875 Mono audio power amplifier Mono power amplifier 5 LO SUPPLY VOLTAGE s ED vec 4 CD OUTPUT 4 ED OUTPUT GND 3 GROUND 3L ve 2 INVERTING INPUT 2 N 1 LO NON INVERTING INPUT 16 N TAB CONNECTED TO PIN 3 Pin connection Top view Connection Diagram
3. SP550S Service manual SP550S SERVICE MANUAL CAUTIONS e There is high voltage inside this unit Make sure to pull out the plug of this unit before repairing e There are many high voltage components inside this unit Please pay attention to all Z warnings andinstructions markedon this unit to avoid electricshock e Specifications ofthe replaced components mustbe the same as that ofthe original components Do not change the components specifications to prevent risks CONTENTS AAAAAXXALL L AL ELLLLLL ZLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDLDL D E ELELMALLE CAUTIONS 1 SP550S FEATURES 2 CIRCUIT CONNECTION DIAGRAM amp BLOCK DIAGRAM C ontents 3 DETAILED CIRCUIT EXPLANATIONS 10 THE EXPLANATION FOR KEY COMPONENTS VOLUME CONTROL IC PT2258 CPU IC AT89C2051 POWERIC TDA7370B POWERIC TDA2003 POWER IC LM1875 SP550S FEATURES 5 1CH volume and level adjustment incorporate IC PT2258 and realize the standby and mute functions CPU incorporates IC AT89C2051 Small signal amplification and amplified LPF incorporate ICNJM4558 Power amplification of L R SLand SR channels incorporates power IC TDA7370B Power amplification of the C channel employs power IC TDA2003 Power amplification of the SW channel employs two LM1875 to form BTL e Status display employs a LED digital tube displayed range 0 16 Full function rem
4. Front View Features Features e Voltage 18v Max 28v Voltage 8V 30V e Max output peak current 3 5A e Max output current 4A Output power Vs 14 4v RL 4 ohm THD 10 f 1kHz 6w Output Power Vcc 25v V 25v RI 8ohm Full protection function THD 1 f 1kHz 25w Full protection function
5. NSS see 12 PINS 2 5mm W1 W3 W8 W11 W14 W17 W18 W20 W23 W28 W27 W19 W24 Connection Cords 1 6 SHAPED 75mm jw Co rweiwimus mpm e sumam eae jnassww w uaunam jene b j lt AZ T T FP 4001 ER gg e Tas zera I ozz gero 001 A9VZZ gt ui iSpy X001 F apel 1 8865 4 Tru SPYH lk 9279 Aszinzz Servo Py gt NE NM 9 sere SzvO OSL Lee Zev 00i ES Ac Fery 77 xz vere sre 4 Zz o AQLINZ Z P 3001 9100 9 Sw 1 lk wu mz aeunzz Bevo IO Nidy WwucLni 7 BEEN ezpo ab
6. FRONT PANEL S CONTROLBOARD SP550S SERVICE MANUAL MAIN PARTS LIST OF THE FRONT PANEL S CONTROL BOARD LOCATION SPECIFICATIONS C901 Porcelain Capacitor 50V 104 32099 5mm C901 Stone Capacitor 50V 104 20 5mm C901 Chip Capacitor 50V 104 220 0805 SPECIFICATIONS PART NUMBER N901 InfraredReceptor HS0038B NE RE Affix N90 1 Soft Sponge P ad 1041041 DOUBLE HARD SIDED SCHEMATIC DIAGRAM OF THE FRONT PANEL S CONTROL BOARD N901 HS0038B REMOTE x CN CO 5f LO CO 00 O O CN i XP3 12PIN SP550S SERVICE MANUAL DETAILED CIRCUIT EXPLANATIONS 4 POWER SWITCHBOARD MAIN PARTS LIST OF THE POWER SWITCHAND POWER IC OF THE AMP BOARD MAIN PARTS LIST OF THE PO WER SWIT CH AN D PO WER IC OF THE AMP BOARD aaa s usin cons pnemseeey C ieem naqam O O aseo ema we De eemescmee gem iii Dj eene o pF qewms wmen 8 MiaSpaer suam 1 N407 N408 N409 N408 N409 SCHEMATIC DIAGRAM OF THE POWER SWITCH BOARD ZN SW s S A 220V DEM 14V 1H To AMP Board 50Hz 14V 3 m TK6301500 THE EXPLANATION FOR KEY COMPONENTS VOLUME CONTROL IC PT2258 Manufactured by CMOS technology 6 channel volume control IC I2 C control interface Features 6 channel design each channel 0 79 dB 1dB STEP Working voltage 5 8v Audio channel separability 100dB l C control interface e DIP package
7. NG BOARD MAIN PARTS LISTOF THEMAIN POWERAMPLIFYING BOARD 1 6W680 _ 5 SHAPED 7 5 4 R404R434R437R440 R443R466 CarbomfilmResista 1 6W10K45 SHAPED75 1 6W12K 5 SHAPED 75 R450 R458 R452 R454 R456 R416 R418 R422 R423 Carbon film Resistor 1 6W22K 5 SHAPED 75 R426 R427 R441 R444 R459 R465 R446 R467 Carbor film Resiste 1 6W47K 5 SHAPED 75 m s E RASSRAALRATTRATSRAGA Corbomfilm Resistor 1 6W100K 5 SHAPED 75 9 R4I7R420R429 R431 Carbon flmResisto 1 6W150K5 SHAPED 75 L AW101_ 45 SHAPED 10 12 RA0LR42 CarbofilmResistor_ 1 2W2201_ 5 SHAPED 125 1 6W47 45 SHAPED 75 SOV 151 10 2 5mm carens O Ej ks Ap Porcelain Capaci tor 50V 104 10 5mm 100V 103 41090 3 5mm 100 224 10 8mm C447 C450 Metal Pdyester Flm i5 ix 10022421094 7 5 Capacitor 28 Cd4C4531 CD CDIII6V47U20 5H12 30 C407C408C444 p CDII16V470U20 608H23 5 32 C419 0123 0426 0427 0429 0431 0433 C434 C435 C438 C443 44 CD CIT 25V220UH20 BUIZ3 5 37 voa VefageRegulatrDiode S 1V 2W Voltage Regulator Diode 12V 1 2W O Software Program CPU N402 CPUHT60 0 AT89C2051 DIP 40 N404 N406 IC 4558C DIP SP550S SERVICE MANUAL DETAILED CIRCUIT EXPLANATIONS ee Ma frais PENTAWATT kee aes a e am wes ede t
8. a 081 3 9 4 955 raie moa 9 un 90v OA s ano pez as na zWYL LL L oro 8vvO 6082 Agl 8 Q v wT LOPN o O SSX debo T SUY OA zoya Nide c S0LELVOL MS O 0ZZ ASZIn00 topo A i lt m nhro Birmos ZW Ww vut T d sued Wold c 9892 oros OLbaA 9079 vez T AOSZWrLOvD 9 binoz pa al rs Nos aL L a por niin PUE 10v 14 bd Nl LOPE aghy Agzinoozy an l z i lt ZVO LLI z O ul a a SP550S SERVICE MANUAL DETAILED CIRCUIT EXPLANATIONS MAIN PARTS LIST OF THE AUXILIARY POWER AMPLIFYING BOARD 1 6W56K 5 SHAPED 7 5 4 R301 R305 Carbon film Resistor 1W100 _g5 R SHAPEDISx8 6 C302 CD11 25V 47W20 5 x 112 7 VD301 VD303 VD304 VD305 Diode IN4148 8 VD302 Voltag e Regulator Diode 6 8 1 2W 8050D 11 y301 Y303 JH4237 0122HDCO2V O cket PINS 2 5 mm 7 7 2 PINS 792mm Socket 4 PINS 3 96mm e SCHEMATIC DIAGRAM OF THE AUXILIARY POWER AMPLIFYING BOARD Y303 GSADC12V oT GND From Sub AMP Board VD305 SR L T Somos fo z R SL 1N4148 Y302 GSADC12V o To Output Board R302 100 1 VD304 a 88 Ig 3 yaaa Paro 2 1N4148 Y301 GSADC12V
9. ote control e Square powertransformer bridge and full wave rectifying circuit Satellite speakers employ plastic body Subwoofer speaker s body employs xyloid MDF construction with PVC cover e Satellite speakers employ 3 foot wide frequency band high performance unit e Subwoofer incorporates 8 foot aluminum audio coil with dual magnetic circuits exclusively for the subwooferunit e All in one flat radiator board with long radiator sluts for excellent heat radiation SP550S SERVICE MANUAL CIRCUIT CONNECTION DIAGRAM amp BLOCK DIAGRAM CIRCUIT CONNECTION DIAGRAM d 5 POWER AMPLIFYING BOARD 9 xS1 5 E OUTPUT BOARD 1 GND 1 GND ZGND 2 GND INPUT BOARD a asa ee Tsw sw L LL sR zz ase asi CsI XP2 4 C 4 C XS2 L2L XS3 3 GND SW SPEAKER E XP3 Sw FRONT PANEL S BOARD BLOCK DIAGRAM L MAIN POWER AMPLIFYING BOARD R z 2 L R SL SR si INPUT BOARD lt L gt o POWER ru AMPLIFICATION u SR E R v 5 1CH 5 INPUT POWER AMPLIFICATION SL SR LPF T sw AMPLIFICATION SW POWER AMPLIFICATION OUTPUT BOARD REMOTE CONTROL RECEPTION FRONT PANEL S CONTROL BOARD SP550S SERVICE MANUAL DETAILED CIRCUIT EXPLANATIONS 1 THE POWERAMPLIFYI
10. u D fero DE L ano li gp no mi He zus 3 H gt p eog awy qns E z m g louniz rara ens rt ano vi Ly 9 3 i Shu agno N YT az E gia dX oi azz ASznzz ii zru 5 2 ISPA gt 7 E 7 29 a Sova ES ot aoa Abimzz izvo cere 13d09 zaqoo gt AQLINZ Zs a Y d Kura 58 Amr ds s ne oe 19790 p zs OZvH 6LvH no cit wunzz z e A9Vnezz e uno iN Octo ve n raze SOSL voL kq OOP OL IWH SivH ASZ NOLb He a Il sero It asunee Sy a deg vrro o 6LvO lt cory vo xzz OL a O A E 68vM esot e eve be m 9umz z ge aSOPN T 1 T azz hor RE T 2 m Tove sore ATTO vor ozval x L1S020681V gt ero 60vN ZivH l Nid bb v 16 zi rye doz lt m Asi ang E TOPA zt tid ced p T n i d zi 2 iisas pirog Kjdsiq x ZY Hd oz lt 2 AFT 0 ar 14 bed pu X01 20 9 Br Lid Od roryl J 24 S Love sonddqusy 6 LO 3 Vosa X9 T gory a bL 10W3H Z ASUBOL Oo r SAL 089 S0vH tros x TS Aszinozz a en TVS oT Pino E 5 all T lt x ASZIn0Zz NI ivo vec Jr e 1 E bi noz 5 evo 100 PF pez ALINLY ALS vob Mi Jn004 ul 5 ASZ n zZz toT Elpo L PO tvSclH I pieog dWV QnS OL yg pr sro epp Yz
Download Pdf Manuals
Related Search