Tektronix 2246 1Y, Service Manual

Page: 18 / 433

Specification—2246 IV and 2246 Mod A Service
Table 1-1 (cont)
Electrical Characteristics
Characteristics Performance Requirements
VERTICAL DEFLECTION SYSTEM - CH 3 AND CH 4
Deflection Factor
Range 0.1 V per division and 0.5 V per division.3
Accuracy
15°C to 3 5 ° C Within ± 2%.
-1 0 °C to 55°C Within ±3%.
Frequency Response
(-3 dB bandwidth)
Dc to 100 MHz (at the input BNC and with a 10X probe).
Step Response (5-division step)
Rise Time 3.5 ns or less (calculated).3
Delay Match (CH 3 to CH 4) Less than 400 ps difference.
Trace Shift Between
VOLTS/DIV Settings 1 division or less.
Channel Isolation
(attenuation of
deselected channel)
34 dB or more at 100 MHz.
Channel isolation tested with eight-division
input signal.
Input Characteristics
Resistance 1 M fi ±2%.3
Capacitance 20 pF ±2 pF.a
Maximum Input
Volts A
400 V (dc + peak ac); 800 V p -p at 10 kHz or less;
800 V p -p at 10 kHz or less; 5 V (dc + peak ac) at
100 MHz or less.3
P e rfo rm a n c e R e q u ire m e n t n o t c h e c k e d in m a n u a l.
1-5