Scope Of Manual; Description; Series Number - HP LOGIC PULSER 546A Operating And Service Manual

Model 546A
Page 1
SCOPE OF MANUAL
This manual provides operating and service information for the Hewlett-Packard Model 546A Logic
Pulser (Figure 1). The information includes a description of the Logic Pulser, accessories available,
specifications, unpacking, operating characteristics, operating procedures, applications, theory of
operation, maintenance, replaceable parts, and a schematic diagram.
DESCRIPTION
The HP 546A Logic Pulser is a hand-held logic node stimulator used for injecting controlled pulses
into digital logic circuits. The electronics are housed in a hand-held probe. Automatic pulse control
is provided for TTL, DTL, RTL, HTL, MOS, and CMOS logic. Pulse amplitude depends on the logic
supply voltage (3-18V) which is also the supply voltage for the Logic Pulser. Pulse current and pulse
width depends on the load being pulsed. The frequency and number of pulses generated by the
pulser is controlled by operation of a push-slide switch on the pulser probe. A flashing LED indicator
iocated in the tip indicates the output mode. Refer to Table 1 for Logic Pulser specifications and to
Figure 2 for accessories available.
SERIES NUMBER
The Logic Pulser does not have a serial number. It does have a four digit series number, which is
. stamped on the printed circuit board. Refer to this number and the circuit board part number in any
correspondence pertaining to maintenance.