Service manual

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XL-520W/CP-520
43 FCSI Output Focus actuator driving signal output terminal in the focus search mode.
44 FKIC Output Focus actuator driving signal output terminal in the focus gain adjusting mide.
45*,46* FEL2,1 Output Focus again adjusting analog switch output terminals.
47 FEI Input Focus error signal input terminal.
48 TESH Input Tracking error signal input sample holding analog switch input terminal.
49 TEOF Output Tracking servo operation ON/OFF analog switch output terminal.
VREF when the tracking servo is OFF.
50 SBAD Input Sub beam adding signal input terminal.
51 RFRP Input RF ripple signal input terminal.
52 VREF Input Reference voltage input terminal. (+2.1V)
53 RFI Input RF signal input terminal.
54 GNDA — Analog ground terminal.
55 DTSC2 Output Data slice control EFM signal passive output terminal.
56* MONIT Output Internal signal (EFMO, PLCK, LOCK and MBOV) output terminal. Slected by command.
57 DTSC1 Output Data slice control EFM signal nagative output terminal.
58 VDDA — Analog supply voltage terminal. (+5V)
59 PDCNT Input PDO output control terminal.
At "L" level, PDO output is made to HiZ by force.
60 PDO Output Phase error signal output terminal between EFM signal and PLCK.
61 TMAX Output TMAX signal output terminal, HiZ at time of system clock.
62 LPFN Input LPF amplifier inverting input terminal for PLL.
63 LPFO Output LPF amplifier output terminal for PLL.
64 VCOF Input VCO filter terminal.
65 TESTX Input Test terminal.
66* HS Output Double speed monitor output terminal. Double speed operation at "L" level.
67 GNDD — Digital ground terminal.
68* SPDA Output Processor status signal output terminal.
Correction process judging result, memory buffer capacity, etc.
69* COFS Output Correction system frame periodic signal output terminal. 7.35 kHz.
70* WDCK Output Word clock output terminal. Normally, 88.2kHz.
71* CHCK Output Channel clock output terminal. Normally, 44.1 kHz.
72* BCK Output Bit clock output terminal. Normally, 1.4112MHz
73* AOUT Output Audio data output terminal.
74* EMPH Output Emphasis ON/OFF indication signal output terminal. Emphasis ON at "H" level.
75 DOUT Output Digital out output terminal.
76* TEST2 Input Test terminal. Normally, keep at "H" level or open.
77 VDDX Output Oscillator supply voltage terminal.
78,79 XI,XO In/Output Crystal oscillator connecting teminal.
80 GNDX Output Oscillator grand terminal.
IC802 VHiTC9284BF-1:Servo/Signal Control (TC9284BF) (2/2)
Pin No.
Port Name
Function
Input/Output
FORST H Lens gets for away from disc
FOSET L Lens gets near disc
Others HiZ Other than focus search
COMMAND
FCSI OUTPUT
OPERATION
FGASR H Lens gets for away from disc
FGASS L Lens gets near disc
Others HiZ Other than focus adjustment
COMMAND
FKIC OUTPUT
OPERATION
TMAX PERIOD
TMAX OUTPUT
Longer than specified period L
Shorter than specified period H (2VREF)
Specified period HiZ
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.