Introduction; Introduction - HP 8340B Manual

Power Supplies/Fan
Introduction
The power supplies produce the voltages required for the instrument and generate the power-up
flag
HPUP (high power
up),
which
is
used by the microprocessor
and several other circuits to control
instrument activity, and to ensure proper initialization.
ASSEMBLIES
The power
supplies/fan functional group consists of five
assemblies,
and several components:
A19 capacitor assembly
ASS rectifier
assembly
A52
positive regulator assembly
ASS negative regulator
assembly
A56
—15V regulator assembly
A62
motherboard components
FL1
power
line module
B1
fan
assembly
T1
transformer
HP 8340B/41B
Power Supplies/Fan Introduction
1-1