Sharp CDC2900 Service Manual - Page 20

CD-C622/C2900 C33 0.47/50 C32 0.01 C34 0.33/50 A R2 1K C1 C15 47/16 0.01 Q1 2SA1318 R1 22 C2 0.01 C3 1/50 C31 220/6.3 C30 0.1/50 R46 560 R45 4.7K CNS1B CNS1A K 5 E 4 1 1K B A 3 2 2A B 2 3 3B F 1 4 4E 5 5F CNP1 C LD K MON E B LD GND A F C LT0H30M1 TR+ D FO+ FO- TR- ACTUATOR 5 K 4 E 3 A 2 B 1 F 1 TR- 2 TR+ 3 FO+ 4 FO- 5 GND 6 PD 7 VR 8 LD PICKUP UNIT E PD CNS2B CNS2A TR- 1 1 1 TR+ 2 2 2 FO+ 3 3 3 FO- 4 4 4 GND 5 5 5 PD 6 6 6 VR 7 7 7 F LD 8 8 8 LD CNP2 CNP3 CD MOTOR PWB-C CNP3A CNS3B CNS3A M M1 + SPINDLE MOTOR - G M M2 + SLED MOTOR - SW4 PICKUP IN 6 66 6 5 55 5 4 44 4 3 33 3 2 22 2 1 11 1 CD_GND 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 LF2 VR REF1 VCC2 FSS DRF CE DAT CL CLK DEF C29 4.7/50 VCC1 ++ + LDO + BHI PHI 9 LDS - NC 48 - - - 1 FIN2 REF - 2 FIN1 EREF - RF - FE1 + REF 2 + DEF EFBAL TBC 47 C27 0.001 C4 0.1/50 TE R9 100K 3 4 F REF - R8 5 TB 15K 6 TE- REF - 7 TE + REF + + REF VCR VCR - VCR + - HFL + DRF VCR IC1 LA9241M SERVO AMP. FOSTA TOSTA 2FREQ LASER FSTA 8/12CM SLOF + LATOH FSC 46 DGND 45 CE REF SLI 44 CL 3 SLC 43 REF FE1 S.Q.R SLOF NC - - - - - - - C54 0.001 R10 2.2K C5 0.033 C6 8 TESI REF + VCC - RFS- 42 REF R40 5.6K ++ - + + R11 6.8K R12 100 R13 C9 0.033 9 SCI C7 0.1/50 C8 10 TH REF + REF - TGL1 REF THDL GL THD FSTA REF JP - - + + CV- + CV+ RF RFSM 41 JP- HF JP+ 4 CV+ TP1 40 1K 0.047 R14 R15 27K 12K R16 C10 180P 0.068 11 12 TD- 13 TD REF + GEN REF - + JP FSC REF FOSTA TO GEN REF + GEN + - - - REF + + JPCLO SLOF SLOF 10 5 OR REF CV- 39 SLOF 38 HFL 37 TES 36 - - ++ 3.3K 14 JP REF TOFF 35 FE- AGND SP REF SPI SPG SPO REF SL- SL+ JP- 15 TO + - TGL 34 16 FD JP+ 33 8 R17 33K FD- FA FE 17 18 19 20 21 22 23 SP- SLEO SLD 24 25 26C1727 28 29 30 31 32 6 0.001 C24 2.2P R43 56K C28 0.1 C26 0.033 R44 33K R41 47K R42 47K C25 27P R39 1K R38 470 C23 0.0027 C22 220P FA- C13 330P C16 0.0047 R28 10K R29 56K C20 47/16 C19 1/50 R22 820 R21 R20 1.5K 1K R19 1K C12 0.1 TR- TR+ FO+ FO- C36 100/16 C55 100/16 C11 R18 0.1 15K 1 VREF R23 10K R26 82K C14 0.01 R24 R25 47K 1.5K R27 39K R31 1.2K R30 6.8K C18 0.47/50 R33 R32 1.2K 10K R34 3.3K C76 0.022 1 TO 2 FD 3 FO (GAIN) 4 FO+ 5 FO- 6 TR+ 7 TR- 8 9 10 11 GND 12 13 14 15 SL- 16 SL+ 17 SLD 18 VCC1 19 STANDBY 20 Vref 21 MUTE LD_M+ 42 LD_M- 41 VCC4 40 M+ 39 M- 38 SOL- 37 SOL+ 36 35 34 33 GND 32 31 30 29 VCC3 28 SP+ 27 SP- 26 SPO 25 (SPN)VCC2 24 SOLD 23 SOL- 22 +B C82 100/16 C77 100/16 +B C21 0.0033 R36 220K R35 220K 7 GND C35 1/50 R37 82K D1 +B 1SS133 +B +B +B R56 6.8K IC3 M63001FP FOCUS/TRACKING/SPIN /SLED DRIVER SQ OUT(DSP) CO IN(DSP) WRQ(DSP) RWC(DSP) +B +B +B SP+ SP- SL_+ SL_- CD_PUIN CQ CK(DSP) R47 RES(DSP) 10K DRF(ASP) C57 0.001 C37 0.022 SLD- D_GND SLD+ CNP12 1 2 3 4 5 6 7 8 9 10 CNS12 P29 12 - B TO DISPLAY PW H • NOTES ON SCHEMATIC DIAGRAM can be found on page 15. 1 2 3 4 5 6 Figure 20 SCHEMATIC DIAGRAM (1/10) - 20 -