Sony HCD-EC68P Service Manual - Page 25

SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM - CD SERVO, TUNER Section - CN801 ANTENNA FM/AM 3 1 BAND-PASS FILTER FL803 L805 AM TRACKING D801 L801 AM FREQUENCY COVERAGE 36 FM RF-IN FM-MIX 3 1 AM RF-IN AM-MIX 5 T801 AM IF CF801 8 FM IF-IN FM DET-OUT 23 7 AM IF-IN AM DET-OUT 24 +9V L804 FM TRACKING L803 FM FREQUENCY COVERAGE L802 FM DETECTOR 31 AM-OSC 34 FM RF-OUT 32 FM-OSC 11 FM-DET AM/FM-DET, OSC, MIX, PLL, IF AMP IC801 16 18 17 15 25 19 20 OPTICAL PICK-UP BLOCK (KSM-213DCP) A B C D E F CD-MP3 PROCESSOR IC101 95 FNi1 (A) 97 FPi1 (B) 94 FNi2 (C) 96 FPi2 (D) 100 TNi (E) 98 TPi (F) LO 30 RO 27 R-CH CD-L B X801 75kHz 57 33 56 55 39 DI DO CL CE AGC XIN XOUT O-TU-DI I-TU-DO O-TU-CLK O-TU-CE I-TU-ANSD AUTOMATIC POWER LD CONTROL Q301 PD 91 LDo 92 MDi VC 84 VRo FOCUS/TRACKING COIL DRIVE, SLED/SPINDLE MOTOR DRIVE IC401 SP+ 2 VO1+ IN1 3 13 DMo SP- 1 VO1- SL+ 12 VO2- IN2' 9 12 FMo SL- 11 VO2+ T+ 18 VO3+ IN3' 20 10 TRo T- 17 VO3- F+ 26 VO4+ IN4' 24 9 FOo F- 27 VO4- MUTE 7 BUS0 38 BUS1 39 BUS2 (SO) 40 BUS3 (SI) 41 BUCK (CLK) 42 XCCE 43 PIO0 48 SBSY 54 XRST 37 IO0 (/HSO) 20 XO 24 XI 23 S201 (LIMIT) X102 16.9344MHz 17 I/O-CD-BUS0 18 I/O-CD-BUS1 19 I/O-CD-BUS2 20 I/O-CD-BUS3 25 O-CD-BUCK 26 O-CD-CCE 24 I-REQ 43 O-CD-SBSY 27 O-CD-RST O-3CD-M1+/O-CDM-M1+ 8 O-3CD-M1-/O-CDM-M1- 10 O-3CD-M2+/NC 11 O-3CD-M2-/NC 12 I-3CD-SW1/O-CDM-OPEN 7 I-3CD-SW3/O-CDM-CLOSE 5 I-3CD-SW2/NC 6 I-3CD-CHACK 21 I-3CD-STOCK 22 I-1CD-CLOSE_OPEN/NC 48 SYSTEM CONTROLLER IC301 (1/2) 23 O-DR-MUTE 22 MPX-IN L-OUT 12 R-OUT 13 R-CH TUNER-L A (EC78P: UK) MOTOR DRIVE Q311 - 318 CD MECHANISM DECK M1+ M1M2+ M2- SW1 SW3 SW2 I-CHACK I-STOCK I-OPEN I-CLOSE (EC68P/EC78P: US, Canadian) MOTOR DRIVER IC303 M M001 (LOADING) OPEN CLOSE S001 DISC TRAY OPEN/CLOSE DETECT • R-ch is omitted due to same as L-ch. • SIGNAL PATH : FM : AM : CD PLAY HCD-EC68P/EC78P HCD-EC68P/EC78P 25 25