System Board Assembly Threshold Adjustment - HP 1652B Getting Started Manual

Logic
Hide thumbs Also See for 1652B:
Table of Contents

Advertisement

6. Readjust steps
4
and 5 as necessary for a uniform display of the screen menu.
.
I
Note fb
The V.LIN and HEIGHT
adjustments interact with each other and may need to be
repeated for best results.
System Board
Assembly
Threshold
Adjustment
Equipment
Required:
Digital Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*......... HP
3478A
Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54503-61604
Procedure:
I
Note m
The threshold adjustment
AlR95
is located beneath the oscilloscope board and is
not accessible without dismantling
part of the instrument.
Consequently, it is
advisable to see if the threshold requires adjustment before dismantling the
instrument.
Perform the
Threshold
Accuracy
Test
in section 3 to verify if
adjustment is required before executing this procedure.
TP
1. Disconnect the power cord from HP 1652B/1653B and remove the top cover.
2.
Connect the negative (-) lead of the voltmeter to TP GND. Refer to figure
4-3 for testpoint and adjustment locations.
HP
16528
(SAME
LOCATION
ON BOTH
BOARDS>
HP
1653B
AlTP3
AlTP2
/
GND
A
l ' R 95
01652E17
--
Figure
4-3.
System Board Testpoints
and Adjustments
Adjustments
and Calibration
HP
16528/1653B
4-6
Service Manual

Advertisement

Table of Contents
loading

This manual is also suitable for:

1653b

Table of Contents