Pioneer DVL-909 Service Guide - Page 32

Pd4889a Dvdm Assy : Ic501

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DV-505, DVL-909, DV-S9 PD4889A (DVDM ASSY : IC501) • Mechanism Control IC • Pin Function No. Pin Name I/O Function No. Pin Name I/O Function 1 LODDRV I/O Loading motor drive output 2 DVD/XCD O Clock switch H : DVD , L : CD 33 XDSPRST 34 ASTB − Reset pulse for servo DSP "L" O Address strobe of multiplexed address/data bus "H" 3 AGOFF O Turn AGC of RF IC to OFF for "H" 35 XRST I CPU reset input "L" 4 EFLG 5 FSX I Count data input of error rate Measureable by using timer 1 and 2. 36 SBSY I Error rate count area input (EFM frame sync.) H : C1 , L : C2 37 SHAKE INT Subcode frame sync. input (H : S0+S1 period) INT Communication handshake of CLD mechanism controller "L" (DVL-909 only) 6 P35/PCL 7 XTOFF − Not used (pull down) I/O High impedance (input) at DEFECT ON "L" output at DEFECT OFF 38 XABUSY 39 XIRQ2 INT DSP auto sequence busy input "L" INT LSI-11 interrupt input "L" 8 XCBUSY I DVD command reception is possible "L" 40 VDD − Power supply pin 9 VSS 10 MAD0 − GND 41 X2 42 X1 − Connect a ceramic resonator − 11 MAD1 43 IC (Vpp) − GND 12 MAD2 13 MAD3 14 MAD4 I/O External address / data bus 44 XT2 45 DVDPPK 46 AVss − Not used I Park position detection of compatible DVD pickup "L" (DVL-909 only) − GND 15 MAD5 47 LODPOS I Loading and clamp position SW input 16 MAD6 48 SLDPOS I Slider position SW input 17 MAD7 49 DORPOS I Panel position SW input (DV-S9 only) 18 MA8 19 MA9 20 MA10 O External address bus 50 XCURDET 51 DR/XLD 52 MON I Acutuator over-current detection input (former TRDLMT) "L" Servo OFF for 300 ms. O Panel and loading switch of PWM output Panel : H , loading : L (DV-S9 only) O Spindle motor ON output "H" 21 MA11 53 XCD2X O Not used 22 MA12 54 OEICG O "H" : OEIC gain up to 6dB 23 MA13 55 AVDD − Power supply pin 24 VSS − GND 56 AVREF − Reference power supply pin 25 MA14 26 MA15 O External address bus 57 P_ERR 58 P21/SO1 O Not used − Not used (pull down) 27 DRF 28 V_PB I (FOK) Focus OK input I (LOCK) EFM servo lock signal "H"/"L"= rough servo / phase servo 59 P22/XSK1 − Not used (pull down) 60 XCSB O DSP parallel command setting output "L" 29 P62 − Not used (pull down) 61 CLD O CLD circuit block switch (DVL-909 only) 30 WRQ 31 XRD 32 XWR I Readable flag of subcode Q O CPU read pulse "L" O CPU write pulse "L" 62 LDSO 63 LDSI 64 LDSCK I Inputs serial communication output of CLD mechanism controller (DVL-909 only) O Outputs serial communication input of CLD mechanism controller (DVL-909 only) I Inputs serial communication clock output of CLD mechanism controller (DVL-909 only) 32

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32
DV-505, DVL-909, DV-S9
PD4889A (DVDM ASSY : IC501)
• Mechanism Control IC
•
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