B

Backdating

Manual backdating describes changes that must be made to this manual for power supplies whose serial numbers are lower than those listed in the title page to this manual.

Look in the following table and located your Agilent Model. Then look at each serial number listed for this group. If the serial number of your power supply is prior to any of the serial number(s) listed, perform the change indicated in the Change column. Note that several changes can apply to your supply. You may also be instructed to update your power supply if certain components are being replaced during repair.

Model 6023A

Change

Serial Numbers

 

PREFIX

NUMBER

 

3332A

01839-02233

1

3302A

01789-01838

1,2

3215A

01709-01788

1-3

3047A

01559-01708

1-3

2845A

01069-01558

1-4

2704A

00619-01068

1-5

2541A

00364-00618

1-6

2508A

00184-00363

1-7

2428A

00139-00183

1-8

2420A

00124-00136

1-9

2407A

00101-00123

1-10

Model 6028A

Change

Serial Numbers

 

PREFIX

NUMBER

 

3544A

00101-00165

1

 

 

 

CHANGE 1

All

In the parts list for the A4 Power Mesh Board change Q3, Q4 to PFET p/n 1855-0547. Under A4

 

Power Mesh Board Mechanical change heatsink (Q3, Q4) to p/n 1205-0256. Add hex head

 

standoff (Q3, Q4) p/n 0380-1679.

CHANGE 2

 

 

6023A

In the parts list for the A1

Main Board Assembly change CR1, 3 to p/n 1901-1087. Change

 

CR2, CR4 to p/n 1901-0759.

CHANGE 3

 

 

6023A

In the parts list for the A1

Main Board Assembly change C13, C14 to 0.022∝F 10% 1500V p/n

 

0160-5933.

 

CHANGE 4

 

 

6023A

In the parts list for the A1

Main Board Assembly change T3 bias transformer to p/n 5080-1982.

 

Delete screw p/n 0515-0964, lock washer p/n 2190-0586 and flat washer p/n 3050-0893.

CHANGE 5

107

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Agilent Technologies AGILENT MODELS 6023A and 6028A service manual Model 6023A, Model 6028A, 107