External Sync - Hitachi KP-F80 Operation Manual

7. External sync

Horizontal and vertical drive signal inputs
f(H) = 23.622 kHz ±1 %
HD
VD f(V) = 29.83 Hz
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. 3.1µs
HD and VD phase relationship
VD
HD
KP-F80
negative
DC
negative
DC
DC
75ohm or High impedance (10kohm)
1kohm
Horizontal drive signal (HD)
T=1/f(H)
4〜6V
DC
Approx. 0.4ms
Set HD and VD fallings edges to the same phase (0 ± 2 µs)
Vertical drive signal (VD)
T=1/f(V)
4〜6V
DC
10