HP 4262A User Manual

Model 4262A Section V
Figure 5-7
ADJUSTMENT
(2) OFS - 2 ADJUSTMENT.
a. Connect BNC to dual alligator clip cable (or 1:1 oscilloscope probe) between oscillo-
scope and 4262A test point A13TP2 and 4262A chassis (see Figure 5-5).
b. Change 4262A controls as follows:
FUNCTION. . ...iiiiiiii it iii i C
CIRCUITMODE. ...................... PRL
LCRRANGE ........... .. oovun MANUAL
(Set to 100pF range)
c. Connect nothing (open, oo ) to UNKNOWN terminals.
Note
High terminals (Hror and Hcur) and Low
terminals (Lcur and Lpor), respectively, must
be connected together.
d. Adjust “OFS-2” potentiometer A13R2 until dc level of displayed waveform is within
OmV £1mV. Refer to Figure 5-7 which shows well adjusted waveform.
Figure 5-7. Waveform at A13TP2.
(3) OFS -3 ADJUSTMENT.
a. Use 10:1 oscilloscope probe for this adjustment. Connect oscilloscope probe to 4262A
test point A13TP3 and ground clip lead of probe to 4262A chassis.
b. Change 4262A controls as follows:
TEST SIGNAL ............ 1kHz, LOW LEVEL
LCRRANGE ..........ccviiiinnn. MANUAL
(set to 1000pF range)
5-11

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English