Sdram Clock; Sled Control Related Signal (No Disc Condition); Tray Open/Close Signal; Lens Control Related Signal (No Disc Condition) - Kenwood DVF-3400-B Service Manual

2. SDRAM CLOCK

DCLK = 128MHz, Vp-p=2.2, Vmax=2.7V
9
FIG 2-1

3. TRAY OPEN/CLOSE SIGNAL

10
11
12
13
FIG 3-1
Note: Waveform number shows check points in schematic diagram

4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)

14
15
16
17

5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION)

INSW
18
OUTSW
19
20
CLOSE
OPEN
SLED_S(1.9V/1.4V/1.1V)
DRVSB(3.3V)
SLED+(4.2V/2.8V/1.2V)
SLED-(4.2V/2.8V/1.5V)
FIG 4-1
FOCUS_S(1.5V/1.4V/1.3V)
FACT+(3.2V/2.7V/2.2V)
FACT-(3.2V/2.7V/2.2V)
FIG 5-1