Sharp CD-XP300 Service Manual - Page 45
Function Table Of Ic
UPC - 074000412477
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CD-XP300/CD-XP3300 FUNCTION TABLE OF IC IC1 VHiLC78645NE1: CD Servo (LC78645NE) (1/2) Pin No. Terminal Name Input/Output Setting in Reset Function 1 SLCO 2 SLCIST 3 EFMIN Output Input Input - Control output. For slice level - control. Resistor connection terminal for SLCO output current setting. - RF signal input terminal. 4 RF Output - RF signal monitor terminal. 5 RFVDD Input - RF power terminal. 6 RFVSS - - RF earth terminal. To be connected to 0 V. 7 FIN1 Input - A+C signal input terminal. 8 FIN2 Input - B+D signal input terminal. 9 TIN1 Input - E signal input terminal. 10 TIN2 Input - F signal input terminal. 11 VREF Output RFVDD/2 VREF voltage output terminal. 12 REF1 Input - Reference supply setting terminal. 13* FE Output ZHI FE signal monitor terminal. 14 TEC Output - LPF capacitor connection terminal for TE signal. 15* TE Output ZHI TE signal monitor terminal. 16* RFMON Output ZHI RF internal signal monitor terminal. 17 JITTC - - Capacitor connection terminal for jitter detection. 18 ADAVDD Input - Power terminal for servo A/D, D/A. 19 ADAVSS - - Earth terminal for serve A/D, D/A. To be connected to 0 V. 20 TDO Output ADAVDD/2 Output terminal for tracking control. D/A output. 21 FDO Output ADAVDD/2 Output terminal for focus control. D/A output. 22 SPDO Output ADAVDD/2 Output terminal for spindle control. D/A output. 23 SLDO Output ADAVDD/2 Output terminal for sled control. D/A output. 24* GPDAC Output ADAVDD/2 Servo D/A general-purpose output terminal. 25 CONT4 26 CONT5 Input/Output Input Mode Input/Output Input Mode General-purpose I/O terminal 4. General-purpose I/O terminal 5. Controlled by commands from the microcomputer. When not used, set them as input terminals and connect 27* SBCK/CONT6 Input/Output Input Mode General-purpose I/O terminal 6 or to 0 V, or set them as output Subcode reading clock input terminal. terminals and leave open. 28 SBCK/FG Input - Subcode reading clock input terminal/FG signal input terminal/external emphasis setting terminal. Terminal functions are set by commands. When not used, connect to 0 V. 29* DEFECT Output L Defect terminal. 30* V/*P Output H Auto switching monitor output terminal for rough servo phase control. "H": rough servo, "L": phase servo. 31* FSEQ Output L Sync signal detection output terminal. The status changes to "H" when the sync signal detected in EFM and the sync signal of internal generation are identified. 32* MONI1 Output L Internal signal monitor terminal 1. 33* MONI2 Output L Internal signal monitor terminal 2. 34* MONI3 Output L Internal signal monitor terminal 3. 35* MONI4 Output L Internal signal monitor terminal 4. 36* MONI5 Output L Internal signal monitor terminal 5. 37 VSS - - Digital system earth terminal. To be connected to 0 V. 38 VDD Input - Digital system power terminal. 39* DOUT Output L Digital OUT output terminal. (EIAJ format) 40 TEST Input L Input terminal for test. To be connected to 0 V. 41 LVDD 42 LCHO 43 LVSS Input Output - - LVDD/2 - Left channel D/A converter Power supply for Left channel. Left channel output. GND for Left channel. Must be connected to 0 V. In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside. - 45 -