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7

DETAILED CIRCUIT EXPLANATIONS

 

2.      INPUT BOARD

         MAIN PARTS LIST OF THE INPUT BOARD

NO.

LOCATION SPECIFICATIONS

DESCRIPT ION

SPECIFICATIONS / PA RT NUMBER

1

PCB

1BSY02-1

2

XC1

Terminal Socket

AV6-8.4 - 3C

3

XP2

Raft Cords

7P130 2.5T2 6 SHIELDED WITH NEEDLES,
 PIN7 GROUNDED

MAIN PARTS LIST OF THE INPUT BOARD

SP550S SERVICE MANUAL

 
SCHEMATIC DIAGRAM OF THE INPUT BOARD

C

R

SR

L

SW

SL

1

2

3

4

5

6

7

XP2

7PIN

Signal Source

To Power AMP Board

Summary of Contents for SP550S

Page 1: ...ENGLISH SP550S Service manual...

Page 2: ...ed on this unit to avoid electric shock Specifications of the replaced components must be the same as that of the original components Do not change the components specifications to prevent risks Conte...

Page 3: ...to form BTL Status display employs a LED digital tube displayed range 0 16 Full function remote control Square power transformer bridge and full wave rectifying circuit Satellite speakers employ plast...

Page 4: ...MOTE CONTROL RECEPTION DISPLAY POWER SUPPLY FRONT PANEL S CONTROL BOARD SP550S SERVICE MANUAL OUTPUT BOARD 14V 0 14V Vs RM b1 c1 b2 a2 XP3 XS3 XS2 Vs RM b1 c1 b2 a2 1 1 1 2 2 2 3 3 3 4 4 5 5 Transform...

Page 5: ...filmResistor 1 6W47 5 SHAPED 7 5 16 R403 Carbon filmResistor 1 4W180 5 SHAPED 10 17 R461 Carbon filmResistor 1W220 5 18 C459 Porcelain Capacitor 50V 33P 10 NPO2 5mm 19 C462 C428 C430 C460 C461 Porcela...

Page 6: ...8 W11 W14 W17 W18 W20 W23 W28 W27 W19 W24 Connection Cords 0 6 SHAPED 7 5mm 52 W9 W10 W13 W21 W22 W25 W26 Connection Cords 0 6 SHAPED 10mm 53 W2 W12 W15 Connection Cords 0 6 SHAPED 12 5mm 54 W16 Conne...

Page 7: ...EF 15 GND 14 OUT4 13 OUT5 12 OUT6 11 N403 PT2258D REMOTE G401 4M 1 2 3 4 5 6 7 8 9 10 11 12 XS3 11PIN R406 1 5k R405 680 R407 1 5k R408 1 5k R409 1 5k R410 1 5k R411 1 5k R412 1 5k Vs C416 104 R404 10...

Page 8: ...or 1W100 5 R SHAPED 15 x 8 5 C301 CD CD11 25V 330U 20 8 x 14 3 5 6 C302 CD CD11 25V 47U 20 5 x 11 2 7 VD301 VD303 VD304 VD305 Diode IN4148 8 VD302 Voltage Regulator Diode 6 8V1 2W 9 V301 Triode 9014C...

Page 9: ...IPTION SPECIFICATIONS PART NUMBER 1 PCB 1BSY02 1 2 XC1 Terminal Socket AV6 8 4 3C 3 XP2 Raft Cords 7P130 2 5T2 6 SHIELDED WITHNEEDLES PIN7 GROUNDED MAIN PARTS LIST OF THE INPUT BOARD SP550S SERVICE MA...

Page 10: ...tor 50V 104 20 0805 2 DS901 LE D Digital Tube E20361 G 3 PCB 9BSY02 3 4 XP3 Raft Cords 12P300 2 5 1 PLUG 5 N901 InfraredReceptor HS0038B 6 Affix N901 Soft Sponge Pad 10 10 1 DOUBLEHARD SIDED MAIN PART...

Page 11: ...IFICATIONS 1 Porcelain Capacitor CT7 400V 103 20 10mm POWER SWITCH 2 Power S witch PS8 11 2 3 Mains Cords 2P1 9m10A STC 999 MX 4 Fuse Tube T1 6AL250V FUS E TUBE HOLDER 5 Mica S pacer 24 22 0 1 N410 Mi...

Page 12: ...f 1N5 1N6 CODE1 CODE2 DGND SDA SCL GND 10dB Step 10dB Step 1dB Step 1dB Step Ref Ref Control unit VOLUME CONTROL IC PT2258 Manufactured by CMOS technology 6 channel volume control IC I2 C control inte...

Page 13: ...INT0 P3 2 INT1 P3 3 T0 P3 4 T1 P3 5 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC P1 7 P1 6 P1 5 P1 4 P1 3 P1 2 P1 1 AIN1 P1 0 AIN0 P3 7 PDIP SOIC Pin structure Features Voltage 2 6v Max...

Page 14: ...WER IC TDA2003 POWER IC LM1875 Mono audio power amplifier Mono power amplifier Features Max output current 4A Full protection function Output Power Vcc 25v V 25v EE Rl 8ohm THD 1 f 1kHz 25w Features V...

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