Sharp XL-3000W Service Manual page 52

XL-3000W
IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (2/3)
Port Name Input/Output
Pin No.
39 AVDD
40 RFCT
41 RFZI
42 RFIP
43 FEI
44 SBAD
45 TSIN
46 TEI
47 TEZI
48 FOO
49 TRO
50 VREF
51 RFGC
52 TEBC
53 FMO
54* FVO
55 DMO
56 2VREF
57 SEL
58* FLGA
59* FLGB
60* FLGC
61* FLGD
62 VDD
63 VSS
64* IO0 Input/Output
65* IO1
66* IO2
67* IO3
68* /DMOUT
69* /CKSE
70* /DACT
71 TESIN
72 TESIO1
73 VSS
74 PXI
75* PXO
76 VDD
77 XVSS
78 XI
79 XO
80 XVDD
81 DVSR
82 RO
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input Analog system power terminal.
Input RFRP signal center level input terminal.
Input RFRP zero cross input terminal.
Input RF ripple signal input terminal.
Input Focus error signal input terminal.
Input Sub-beam addition signal input terminal.
Input Test input terminal. To be fixed to Vref usually.
Input Tacking error input terminal. (Tracking servo ON: Taking-in).
Input Tracking error, zero cross input terminal.
Output Focus equalizer output terminal.
Output Tracking equalizer output terminal.
Input Analog standard power terminal.
Output RF amplitude adjustment control signal output terminal.
3-value PWM signal is output. (PWM carrier = 88.2 kHz)
Output Tracking balance control signal output terminal.
3-value PWM signal is output. (PWM carrier = 88.2 kHz)
Output Feed equalizer output terminal. 3-value PWM signal is output. (PWM carrier = 88.2 kHz)
Output Speed error signal or feed search EQ output terminal.
3-value PWM signal is output. (PWM carrier = 88.2 kHz)
Output Disc equalizer output terminal.
3-value PWM signal is output. (PWM carrier = DSP system 88.2 kHz, sync with PXO)
Input Analog standard power terminal (2xVREF)
Output APC circuit ON/OFF signal output terminal.
When laser is ON and UHS = L, "Hi-Z". When UHS = H, "H" output is obtained.
Output Internal signal monitor external flag output terminal.
TEZC, FOON, FOK and RFZC signals can be selected with command.
Output Internal signal monitor external flag output terminal.
DFCT, FOON, FMON and RFZC signals can be selected with command.
Output Internal signal monitor external flag output terminal.
TRON, TRSR, FOK, and SRCH signals can be selected with command.
Output Internal signal monitor external flag output terminal.
TRON, DMON, HYS and SHC signals can be selected with command.
Input Digital + power terminal.
— Digital ground terminal.
General-use I/O port.
The input port and output port can be selected with command. In case of input port the terminal
state (H/L) can be read with the read command.
In case of output port the terminal state (H/L/HiZ) can be controlled with command.
Input Terminal to set the mode to output 2-value PWM of feed equalizer from IO0,1 terminal and 2-
value PWM of disc equalizer from IO2,3 terminal. "L" active
Input To be opened usually.
Input DAC test mode terminal. To be opened usually.
Input Test input terminal (externally provided VCO clock input terminal). To be fixed to "L" usually.
Input Test input/output terminal. To be fixed to "L" usually.
— Digital ground terminal.
Input DSP system clock oscillation circuit input terminal. To be fixed to "L" usually.
Output DSP system clock oscillation circuit output terminal.
Input Digital + power terminal.
— System clock oscillation circuit ground terminal.
Input System clock oscillation input terminal.
Output System clock oscillation circuit output terminal.
Input System clock oscillation circuit + power terminal.
Input R channel D/A converting section power terminal.
Output R channel data forward rotation output terminal.
Function
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