LG GSA-4040B Service Manual page 68

Pin Assignment
Pin no. Pin name
1 P07
2 P06
3 P05
4 P04
5 P03
6 P02
7 P01
8 P00
9 Vss
10 P17
11 P16
12 P15
13 P14
14 P13
15 P12
16 P11
17 P10
18 P107
19 P106
20 P105
21 P104
22 P103
23 P102
24 P101
25 P100
26 P77
27 P76
28 P75
29 P74
30 P73
31 P72
32 P71
33 P70
34 AVdd
35 AVss
36 AVref
37 P20
38 P21
39 P22
40 P23
70
I/O I/O Setting
I/O I
I/O I
I/O I
I/O I
I/O O
I/O O
I/O O
I/O O
O
I/O I EJECTSW
I/O I
I/O I
I/O O
I/O O
I/O I HEATRUN
I/O I
I/O I
I/O I
I/O I
I/O O
I/O O
I/O I
I/O O
I/O O
I/O O
I DRVTEMP
I PWWMON
I PWRMON
I
I SIMG_AFE
I
I
I
I
O
I
I
I/O O
I/O O
I/O I
Symbol Description
SFG SFG interruption demand
INT1 DSP interruption demand (RAM CTL/SRV system)
INT2 DSP interruption demand (ATAPI system)
INT0 DSP interruption demand (DSP)
FM_SW Front monitor signal substitution
Blank port
Blank port
AMUTE Audio Mute signal
VSS GND
EJECTSW interruption demand
FOK FOK interruption demand
RECD1 R Media system Non-recorded detection
Blank port
Blank port
Off line heat run test setup Input
CSEL ATAPI CSEL
CSW1 Cartridge detection signal (extraction history)
CSW2 Cartridge detection signal (protection)
CSW3 Cartridge detection signal (Cartridge detection)
Blank port
Blank port
LIMIT Slider Inner circumference Limit SW input
Blank port
Blank port
Blank port
Driver thermal signal
W-APC front monitor
R-APC front monitor
TEMP Temperature sensor
RF envelope
TACTM Tracking Driver output Moniter(- side)
BCENT BCENT/BHOUT/APCGCAOUT
TACTP Tracking Driver output Moniter(+side)
AVDD A+3.3V(A/D power supply)
AVSS GND (Grounding for A/D)
AVREF A+3.3V(A/D reference voltage input)
XNMI WakeUp Interruption signal
FANEN Control of FAN for cooling
SO0 Serial data output
SI0 Serial data input