External Sync - Hitachi KP-F37 Operation Manual

7. External sync

Horizontal and vertical drive signal inputs
KP-F37: HD
VD
KP-F38: HD
VD
Input level
HD 4 to 6 V
VD 4 to 6 V
Trigger 4 to 6 V
Input impedance
Trigger B(Pin 11)
Drive signal input waveform
Approx. 2.8(F38: 2.4)µs
HD and VD phase relationship
VD
HD
KP-F37/F38
f(H) = 36.713 kHz ±1 %
f(V) = 69.93 Hz
f(H) = 41.958 kHz ±1 %
f(V) = 79.92 Hz
negative
DC
negative
DC
DC
75ohm or High impedance (10kohm)
1kohm
Horizontal drive signal (HD)
T=1/f(H)
4∼6V
DC
Approx. 0.3(F38: 0.2)ms
Set HD and VD fallings edges to the same phase (0 ± 2 µs)
Vertical drive signal (VD)
T=1/f(V)
4∼6V
DC
11