LG GSA-H20A Service Manual page 60

Pin Pin Name
Number
36 WBL
37 CLUMPGT
38 TGCHG
P05
39 LSEN
40 LSCK
41 LSDAT
42 LDDENA
43 FEPIDGT
44 SH6
45 SH1
46 SH2
47 SH3
48 WIDGT
49 WTGT
50 BDO
51 OFTR
52 TC
53 PO2
54 FMSW
55 PO4
GENE0
TRCDATA3
EXTRIG2
56 PO6
HFON
57 VSS
58 VDD3
59 VHALF
PO7
60 PWM0A
61 PWMOB
P10
62 PWM1A
I/O Connection
Target
I FEP
O FEP
I/O OEIC
O PU
O PU
I/O PU
O PU
O FEP
O FEP
O FEP
O FEP
O FEP
O FEP
O FEP
I FEP
I FEP
I FEP
I/O -
I/O PU
I/O -
I/O -
GND GND
Power supply Power supply
I/O FEP
I/O
O DRIVER
I/O DRIVER
I/O
O DRIVER
Description
Wobble binary signal
RF AGC blas circuit clamp signal
Write power switch signal
General-purpose I/O. TxD, PWM
LDD serial interface enable
LDD serial interface clock
LDD serial interface data
LDD enable signal
CAPA punch out signal, main beam sampling signal
Write WOBBLE sample and hold dampling signal
Sample timing signal for ROPC space detection, APC space
detection, and read power detection
Sample timing signal for PCA peak, bottom detection, APC peak
detection, and mean value detection.
Sample timing signal for PCA mean value detection. APC space
detection, read power detection, and erase detection.
VFO punch out signal, ROPC mark detection sampling signal
Write gate
Dropout signal input
Off track signal input
Track crossing signal input
CPU external interrupt. RxD, PWM, general-purpose I/O, laser
fault detect signal.
Power monitor detector multiplier conversion signal
General-purpose I/O
CPU external interrupt, TxD, PWM general-purpose I/O.
Inner limit switch input
Trace data 3
Trigger 2
CPU external interrupt (5V input,), RxD, PWM, general-purpose I/O
External high frequncy module (HFM) ON/OFF
Digital Vss
I/O pad Vdd (3.3V)
Drive pin central reference voltage input
General-purpose I/O, CPU external interrupt.
Focus drive differential PWM+ output, focus drive BSDA output
Focus drive differential PWM- output
General-purpose I/O, TxD, Serial CLK, PWM
Focus 2 (tilt) drive differential PWM+ output, focus 2 drive BSDA
output
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