Sharp CD-BA1500H Service Manual

Also see for CD-BA1500H: Operation manual Service manual

– 49 –CD-BA1500HIC2 VHiLC78641E-1: Servo/Signal Control (LC78641E) (2/2)44 LVDD – – L channel Power terminal for L channel.45 LCHO Output 1/2VDD D/A converter L channel output terminal.46 LVSS – – Ground terminal for L channel. Surely connected to 0V.47 RVSS – – R channel Ground terminal for R channel. Surely connected to 0V.48 RCHO OUTPUT 1/2VDD D/A converter R channel output terminal.49 RVDD – – Power terminal for R channel.50 XVDD – – For quartz Power terminal for quartz oscillation.51 XIN Input Oscillation oscillation Ground terminal of 16.9344MHz quartz oscillation.52 XOUT Output Oscillation53 XVSS – – Ground terminal for quartz oscillation. Surely connected to 0V.54 ASLRCK Input – For anti L/R clock input terminal. (When not used,connect to 0V)55 ASDACK Input – shock mode Bit clock input terminal. (When not used,connect to 0V)56 ASDFIN Input – L/R channel data input terminal. (When not used,connect to 0V)57* LRSY Output L For digital L/R clock output terminal.58* DATACK Output L data output Bit clock output terminal.59* DATA Output L L/R channel data output terminal.60* 16M Output Clock output 16.9344MHz output terminal.61* SFSY Output L Output terminal of synchronous signal of subcode frame.It drops when subcode stand by.62* SBSY Output L Output terminal of synchronous signal of subcode block.63* PW Output L Output terminal of subcodes P,A,R,S,T,U and W.64 SBCK Input – Clock input terminal to read subcode. (When not used,connect to 0V)65 CE Input – For Chip enable signal input terminal.66 CL Input – microcomputer Data transmission clock input terminal.67 DI Input – interface Data input terminal.68 DO Output L Data output terminal.69 INT Output H Interruption signal output terminal.70 WRQ Output H Interruption signal output terminal.71 RES Input – Reset input terminal of LC78640. When turning on power, set it at "L".72 DRF Output L Focus ON detection terminal.73 VDD5V – – Power terminal for microcomputer interface.74 VSS – – Ground terminal of digital system. Surely connected to 0V.75 CONT6 In/Output Input mode General purpose input/output terminal 6. Controlled with serial data commandfrom microcomputer. When not used,76 CONT7 In/Output Input mode General purpose input/output terminal 7. set it as the input terminal andopen it by connecting to 0V, or set itas the output terminal and open it.77* V/ *P Output H Monitor output terminal for automatic switch of rough servo/phase control."H" for rough servo, and "L" for phase servo.78* FSEQ Output L Output terminal synchronous signal detection. "H" is output when synchronous signaldetected by EFM signal matches synchronous signal internally generated.79* DEFECT In/Output Input mode Defect terminal. After resetting, it is configured as an input terminal. It can be controlledfrom the outside. It also becomes a defect monitor terminal under command control80* EFMO Output Unfixed EFM signal output terminal.Pin No. FunctionTerminal Name Input/Output Setting in ResetIn this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.Be sure to supply the same potential to each power terminal. (VVDD,ADAVDD,VDD,LVDD,RVDD,XVDD)Terminal witch is controlled by the power terminal (VDD5V) for a microcomputer interface :CE (65pin), CL (66pin), DI (67pin), DO (68pin), INT (69pin), WRQ (70pin), RES (71pin), DRF (72pin),CONT6 (75pin), CONT7 (76pin)All manuals and user guides at all-guides.com