FOR INSTRUMENTS WITH SERIAL NUMBERS
HP Model 6033A; Serials US38320231 and above
HP Model 6038A; Serials US38310401 and above
This manual contains information for troubleshooting the HP 6033A/6038A 200W Autoranging Power Supply to the
component level. Wherever applicable, the service instructions given in this manual refer to pertinent information provided
in the Operation Manual (P/N 5959-3301). Both manuals cover HP Models 6033A/6038A; differences between models are
described as required.
The following information is contained in this manual.
Calibration and Verification
Contains calibration procedures for HP Models 6033A/6038A. Also contains verification procedures that check the
operation of the supplies to ensure they meet the specifications of Chapter 1 in the Operating Manual.
Contains troubleshooting procedures to isolate a malfunction to a defective component on the main circuit board or to a
defective assembly (front panel, power transformer, or cable assembly). Board and assembly level removal and replacement
procedures are also given in this section.
Principles of Operation
Provides block diagram level descriptions of the supply’s circuits. The primary interface, secondary interface, and the power
mesh and control circuits are described. These descriptions are intended as an aid in troubleshooting.
Provides a listing of replaceable parts for all electronic components and mechanical assemblies for HP Models
Contains functional schematics and component location diagrams for all HP 6033A/6038A circuits. The names that appear
on the functional schematics also appear on the block diagrams in Chapter 2. Thus, the descriptions in Chapter 2 can be
correlated with both the block diagrams and the schematics