LG GWA - 4083B, Руководство по обслуживанию

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52
Pin Pin Name I/O Connection Description
Number Target
37 FMSW I/O PU Power monitor detector multiplier conversion signal
PO3 General-purpose I/O
38 WTGT O FEP Write gate
39 WBL I FEP Wobble binary signal
40 FEPIDGT O FEP CAPA punch out signal, main beam sampling signal
41 SH5 O FEP Write WOBBLE sample and hold sampling signal
42 WIDGT O FEP VFO punch out signal, ROPC mark detection sampling signal
43 SH3 O FEP Sample timing signal for PCA mean value detection, APC space
detection, read power detection, and erase detection
44 SH2 O FEP Sample timing signal for PCA peak, bottom detection, APC peak
detection, and mean value detection
45 SH1 O FEP Sample timing signal for ROPC, space detection, APC space
detection, and read power detection
46 TC I FEP Track crossing signal input
47 CLUMPGT O FEP RF AGC bias circuit clamp signal
48 ASENV I FEP ASENV/LPP mark input
49 POLGT O FEP CAPA polarity switch signal, sub beam sampling signal
50 LPPS I FEP LPP space input
51 OFTR I FEP Off track input
52 PO4 CPU external interrupt, general-purpose I/O
GENE0 I/O - Inner limit switch input
TRCDATA3 Trace data 3
EXTRIG2 Trigger 2
53 TGCHG I/O OEIC Write power switch signal
P05 General-purpose I/O
54 LSEN O PU LDO serial interface enable
55 LSCK O PU LDO serial interface clock
56 LSDAT I/O PU LDO serial interface data
57 LDDENA O PU LDD enable signal
58 P06 I/O - CPU external interrupt(5V input)
HFON General-purpose I/O for external high frequency module(HFM)
ON/OFF
59 VSS GND GND Digital Vss
60 VDD3 Power supply Power supply I/O pad Vpp(3.3V)
61 VHALF I/O FEP Drive pin central reference voltage input
P07 General-purpose I/O
62 PWM0A O DRIVER Focus drive differential PWM+ output, focus drive BSDA output
63 PWMOB I/O DRIVER Focus drive differential PWM- output
P10 General-purpose I/O