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LG GSA-4040B Service Manual page 68

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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

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