Sony MDS-JE470 Service Manual - Page 38

MDS-JE470 6-2. BLOCK DIAGRAMS - BD SECTION - HR901 OVER WRITE HEAD OVER WRITE HEAD DRIVE IC181, Q181, 182 SCTX OPTICAL PICK-UP (KMS-260B/260E) I J F B CB I J DA A E DETECTOR C D E F ILCC PD LD LASER DIODE PD I 1 J 2 48 47 RF AMP, FOCUS/TRACKING ERROR AMP IC101 RFO RF AMP 46 AGCI RF AGC RF 40 & EQ 38 A 4B 5 C 6D I-V AMP 7 B.P.F. 3T TEMP WBL WBL EQ AUX 33 PEAK & BOTTOM PEAK 37 BOTM 36 AT AMP ADFM B.P.F. 29 ADIN 30 ABCD AMP FOCUS ERROR AMP ADFG 32 ABCD 35 FE 34 APCREF SWDT SCLK XLAT EQ 3T WBL E 8 I-V F 9 AMP AUTOMATIC POWER CONTROL Q121, 122 APC 11 LD/PD AMP TRACKING ERROR AMP COMMAND TE 26 SE 28 SERIAL/PARALLEL CONVERTER, DECODER V-I CONVERTER F0CNT 20 LASER ON SWITCH Q101 PD 10 12 16 17 18 MORFO MORFI FILTER EFM/ACIRC ENCODER/DECODER SHOCK PROOF MEMORY CONTROLLER ATRAC ENCODER/DECODER EFMO 100 FILI 60 PCO 59 CLTV PLL 62 FILO 61 ASYO 53 ASYI 54 RFI 57 COMPARATOR DIGITAL SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER IC151 (1/2) 15 TX IC151 (1/2) ADDT 25 SAMPLING RATE CONVERTER DATAI XBCKI LRCKI 22 NC 24 NC 23 NC DIGITAL AUDIO INTERFACE DIN0 19 DIN1 20 DOUT 21 DADT XBCK LRCK FS256 26 28 27 29 NC ADFG ADIP 78 DEMODULATOR/ DECODER SUBCODE PROCESSOR 79 F0CNT SPINDLE SERVO CLOCK GENERATOR INTERNAL BUS CPU INTERFACE MONITOR CONTROL MNT0 MNT1 MNT2 MNT3 XINT SENS SRDT SWDT SCLK XLAT DQSY SQSY SPFD SPRD 94 93 12 11 14 9 8 5 6 7 1234 SHOCK XBUSY SWDT SCLK 18 20 25 58 32 31 33 50 59 48 WAVE SHAPER IC600 OPTICAL RECEIVER IC611 ADDT A (Page39) DIGITAL IN (OPTICAL) OSCI 16 OSCO 17 D-RAM IC153 BUFFER IC171 DADT, BCK, LRCK B (Page39) C (Page39) 1, 2, 24, 25 DQ1 - DQ4 D0 - D3 49, 48, 50, 51 5, 9 - 12, 14 - 18 A0 - A9 A00 - A09 34 - 31, 36 - 40, 45 XOE 43 XWE 47 XRAS 46 XCAS 44 22 OE 3 WE 4 RAS 23 CAS SWDT, SCLK D (Page39) DQSY SQSY XINT SENS SRDT SWDT SCLK XLATCH MNT1 (SHOCK) MNT2 (XBUSY) FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE IC141 16 PSB M101 M (SPINDLE) 6 OUT4F 8 OUT4R SPFD IN4R 3 SPRD 83 IN4F 4 APCREF M102 (SLED) M 27 OUT2F 25 OUT2R IN2F 29 IN2R 30 SFDR 92 SRDR 91 (TRACKING) (FOCUS) 2-AXIS DEVICE FCS+ FCS- TRK+ TRK- HF MODULE MOD 21 OUT1F 23 OUT1R IN1F 19 IN1R 18 FFDR 88 FRDR 89 12 OUT3F 10 OUT3R IN3F 14 IN3R 15 TFDR 86 TRDR 85 PWM GENERATOR 10 XRST 13 RECP AUTOMATIC POWER CONTROL AUX1 ABCD FE TE SE PEAK BOTM 67 65 66 75 74 63 64 ANALOG MUX DIGITAL SERVO SIGNAL PROCESS A/D CONVERTER FROM CPU INTERFACE AUTO SEQUENCER DIGITAL SERVO SIGNAL PROCESSOR IC151 (2/2) XLRF XLAT 80 CKRF SCLK 81 DTRF 82 SWDT HF MODULE SWITCH IC102, Q131 - 134 57 LDON 52 DIG-RST 54 WR-PWR 56 MOD 67 66 LDIN LDOUT LOADING MOTOR DRIVE IC440 IN2 IN1 36 VCC 1 VCC 8 OUT2 OUT1 72 VZ 5 M M103 (LOADING) 38 38 SYSTEM CONTROLLER IC1 (1/2) +3.3V D+3V REG. +5V IC190 +5V UNREG +12V REFERENCE VOLTAGE SWITCH Q440,445 65 LD-LOW SDA 5 EEPROM IC195 SCL 6 60 SDA 45 SCL LIMIT-IN 55 OUT-SW 49 S101 (LIMIT IN) S103 (OUT SW) PLAY-SW 51 S104 (PLAY SW) REC-SW 53 S105 (REC POSITION) REFLECT 61 PROTECT 44 S102 (REFLECT/PROTECT DETECT) HIGH REFELECT RATE/ WRITE PROTECT LOW REFELECT RATE/ UN-PROTECT • SIGNAL PATH : PLAY (ANALOG OUT) : REC (ANALOG IN) : REC (DIGITAL IN)