MANUAL CHANGES

Model 6269B DC Power Supply

Manual HP Part No. 06269-90002

Make all corrections in the manual according to errata below, then check the following table for your power supply serial number and enter any listed” change(s) in the manual.

 

 

 

SERIAL

 

 

 

MAKE

 

 

 

 

 

 

 

 

CHANGES

 

 

Prefix

 

Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALL

 

 

 

 

 

Errata

 

 

1027A

 

0245,

0246,

 

1

 

 

 

 

0255

 

 

 

 

 

 

1027A

 

0236,

0239,

 

1,2

 

 

 

 

0241 - 0244,

 

 

 

 

 

 

0247,

0248,

 

 

 

 

 

 

0252

-0254,

 

 

 

 

 

 

0 2 5 6 - 0 3 0 5

 

 

 

 

1027A

 

0306 - 0355

 

1,2,3

 

 

1027A

 

0356

-

0380

 

1,2, 3,4

 

 

1027A

 

0381 - 0429

 

1 thru S

 

 

1027A

 

0430

-

0455

 

1 thru 6

 

 

1027A

 

0456 - 0540

 

1 thru 7

 

 

1027A

 

0541

- 0870

 

1 thru 8

 

 

1027A

 

0871

- 1080

 

1 thru 9

 

 

1027A

 

1081

- 1260

 

1 thru10

 

 

1436A

 

1261

- 1470

 

1 thru 11

 

 

1506A

 

1471

- 1510

 

1 thru 12

 

 

1513A

 

1511

- 1630

 

1 thru 13

 

 

1535A

 

1631

-

up

1 thru 14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ERRATA:.

In the Replaceable Parts List, make the following changes:

Knob, front panel, black: Change to HP Part No. 0370-0084.

Option 007: Add knob, HP Part No. 0370-0137, quantity 1.

Option 008: Add knob, HP Part No. 0370-0137, quantity 1.

Option 009: Add knob, HP Part No. 0370-0137, quantity 2.

Under AS-Mechanical:

Bezel, Gray Plastic: Change to HP Part No. 4040-0293 (Black).

Under Chassis Assembly-Mechanical

Bus Bar, C103-C104: Change to HP Part No. 5000-6251.

CHANGE 1:

Add new RC network (C2 and R2) on the RFI filter board assembly A2. On the schematic, C2 and R2 are connected directly across Triac CR1 (C2 is on the inboard side of CR1).

C2 and R2 prevent the misfiring (turning on too soon) of triac CR1 by slowing the rate of voltage increase across L1A/B (in series with T1) when the triac turns off.

In the Replaceable Parts list under AZ RFI Filter Assembly:

C2: Add, 0.047µF, 600V, HP Part No. 0160-0005.

R2: Add, 220 Ω, ±5%, 2W, HP Part No. 0811-1763.

In the Replaceable Parts Iist, make the following changes:

CR1: Delete Mfr. Part No. and change HP Part No. to 1884-0209.

Under A2-Mechanical:

Wafer, Insulated, CR1: Delete.

Shoulder Washer, CR1: Delete.

CHANGE 2:

In the Replaceable Parts List under A4 Heat Sink Assembly and on the Schematic, make the following changes:

A4R106 (in the Overvoltage Protection Crowbar): Change to fxd, WW, 0.2 Ω, 12W, HP Part No.

0811-3081.

A4Q102 (in the Series Regulator and Driver Cir- cuit): change to HP Part No. 1854-0458.

CHANGE 3:

In the Replaceable Parts list, make the following changes:

A1C71: Change to 0.22µF, 80V, HP Part No. 0160-2453.

A1R5: Change to 680 Ω, 5W, HP Part No. 0811-2099.

A1R79: Change to 1.8k, ½W, HP Part No. 0686-1825.

ERRATA :

In the Replaceable Parts List on Page 6-8, under Chassis-Electrical, change:

C110, C111 to 3000 Vdc.

On the schematic, Figure 7-11,connect the +S output terminal to the A8 terminal on the inboard side of the + OUT BUS (these terminals are internally connected).

CHANGE 4:

In the Replaceable Parts List and on the schematic make the following changes:

A2C1: Change Cl to O.1µF, 400Vdc, HP Part No. 0160-0013.

A1C41: Change C41 to 0.01µF, 200Vdc, HP Part No. 0160-0161.