![background image](http://html.mh-extra.com/html/lg/gsa-4166b/gsa-4166b_service-manual_211208067.webp)
71
Pin Pin
Name
I/O
Connection
Description
Number
Target
201
NCE
O
FLASH
Flash ROM chip enable signal
202
TX
I/O
-
IEC958-compliant digital output, debugging serial TX
P16
General-purpose I/O
203
NEJECT
I/O
Mecha
Tray eject signal (SODC external interrupt)
204
TRYLOAD
I/O
Mecha
Tray eject signal (SODC external interrupt)
P26
General-purpose I/O
205
SDATA
I/O
-
Debugger data, DRC monitor 0
206
SCLOCK
I/O
-
Debugger clock, DRC monitor 1
207
DASPST
I/O
-
DASP setting
TRCDATA0
Trace data 0
208
MSTPOL
I/O
-
MASTER pin polarity switch
TRCDATA1
Trace data 1
209
VSS
GND
GND
Digital Vss
210
OSCI
I
Xtal
Oscilator input (16.9344MHz)
211
OSCO
O
Xtal
Oscilator output
212
VDD3
Power supply
Power supply
I/O pad V
DD
(3.3V)
P17
General-purpose I/O
213
TRCDATA2
I/O
-
Trace data 2
EXTRIG1
External interrupt
214
TRCCLK
I/O
-
Trace clock
P20
General-purpose I/O
215
TRCST
I/O
-
Trace status
P21
General-purpose I/O
216
NRST
I
Reset IC
Reset input (power on reset)
Summary of Contents for GSA-4166B
Page 18: ...2 2 Pick up A Release 1 screw C and remove the Pick up Pick up Unit Pick up C Fig 2 2 18 ...
Page 39: ...43 3 MD Assy For LightScribe Optical Encoder Unit OPU ID Movement Range L 21um ...
Page 86: ...90 CD Laser Power Setup Result HC_CD Laser Power Setup Result DVD Laser Power Setup Result ...