Specifications
WFM90D and WFM91D ServiceManual 1-3Table1- 1: Verticaldeflection system (Cont.)Category Description
Deflection Factor REQ: Analog Input, 1 V Full Scale:
1V i nput displayed within 1% of 140 IRE
REF: Flat filter selected.
REQ: Digital Input, 1 V Full Scale:
1V i nput displayed within 2% of 140 IRE
REF: Flat filter selected.
REQ: X5 Gain:
Gain accuracywi thin 5% with 1 V input signal.
REF: X5 Gain Registration:
≤1m ajor division of vertical shift from baseline between unmagnified and magnif ied signal.
REQ: VariableGain Range:
Input signals between 0.8 V and 2 V can be adjusted to 140 IRE (1.0 V) display. 160 mV to 400 mV
forX5 Gain.
REQ: Position Range:
1V si gnal can be positioned so that peak white and sync tip can be placed at blanking level, with t he
DCRESTORER on, regardless of gain set ting.
TransientResponse
Analog Input REF: Specifications apply for full screen height video input signal, with VARIABLE GAIN off, 1 V Full
Scale orX5 Gai n selected, and FLATfil ter selected.
REF: Pulse-to-BarRat io:
X1: 0.99:1 to 1.01:1.
X5: 0.98:1 to 1.02:1.
REF: Preshoot: ≤1%.
REF: Overshoot: X1: ≤2%.
X5: ≤4%.
REF: Ringing: X1: ≤2%.
X5: ≤4%.
REF: Field Rate Tilt: ≤1%.
REF: Line Rate Tilt: ≤1%.
REQ: Overscan:≤2% variation in baseline of 100 IRE (700 mV) 12.5T (20T) modulated pulse as it is
positioned over the middle 80% of the screen.