Zenith XBV613 Service Manual - Page 59
SDRAM CLOCK, SDRAM clock is at 143MHz, TRAY OPEN/CLOSE SIGNAL, Tray open/close waveform
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2. SDRAM CLOCK 1) SDRAM clock is at 143MHz CLK=143MHz,Vp-p=3.3V IC603 PIN38 3. TRAY OPEN/CLOSE SIGNAL 1) Tray open/close waveform FIG 2-1 OPEN CLOSE FIG 3-1 3-66 OPEN CLOSE LMLM+
3-66
2. SDRAM CLOCK
1) SDRAM clock is at 143MHz
FIG 2-1
IC603 PIN38
CLK=143MHz,Vp-p=3.3V
3. TRAY OPEN/CLOSE SIGNAL
1) Tray open/close waveform
FIG 3-1
OPEN
OPEN
CLOSE
CLOSE
LM-
LM+