Chapter 6 Backdating

Backdating Hardware

b.Connect the negative lead of a voltmeter to the white wire

connection (GND) on the connector of the two-wire cable, and connect the positive lead to the gray wire connection (9V) as shown in Figure 2-10.

Verify a reading of −9.0 ± 0.45 V.

Page 5-7, Table 5-3. HP 53131A/132A/181A Replaceable Parts:

Change A6 Options 001, 010, and 012 Timebase Support Board from 53132-60016 to 53132-60008.

Change A6 Option 010 Oscillator-Oven from 10811-60160 to 10811-60111.

Change A6 Option 012 Oscillator-Oven from 10811-60260 to 10811-60211.

CHANGE 4 (Series 3710A to 3705A)

53132A Only (Firmware Revision 3646A to 3546A)

Page 2-41, Table 2-2. HP 53132A Assembly Identification:

Change A1 Motherboard part number from 53132-60014 to 53132-60001.

Page 5-7, Table 5-3. HP 53131A/132A/181A Replaceable Parts:

Change A1 Motherboard (53132A) part number from 53132-60014 to 53132-60001.

6

Assembly-Level Service Guide

6-5

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HP 181A manual Change 4 Series 3710A to 3705A