Sdram Clock; Tray Open/Close Signal - LG DP372D Service Manual

2. SDRAM CLOCK

DCLK=128MHz, Vp-p=1.77, Vmax=2.35V
7
FIG 2-1

3. TRAY OPEN/CLOSE SIGNAL

8
FIG 3-1
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Only for training and service purposes
DBA0
DBA1
SDCKE
SDCLK
7
8
OPEN
CLOSE
3-13
R205 R205 33 33
R206 R206 33 33
R207 R207 33 33
R208 R208 151 151
TROPEN
Tray_Open_SW
4 1
SW301 SW301
3 2
SW PUSHBUTTON SW PUSHBUTTON
C322 C322
104 104
LGE Internal Use Only
BA0
BA1
DCKE
DCLK
S3.3V
R332 R332
10K 10K
C321 C321
104 104