Adjustments; Preparations - Fluke PM6690 Service Manual

Preparations

Before beginning the adjustments, power up the instrument
after removing the cover (see Chapter 3) and leave it on for at
least 60 minutes to let it reach normal operating temperature.
GND
TP
GND J7
Figure 7-2
Test points and trimmers for the input amplifiers.

Adjustments

GND
TP
J9 GND
WARNING: Live parts and accessible termi-
nals which can be dangerous to life are
always exposed inside the unit when it is
connected to the line power. Use extreme
caution when handling, testing or adjust-
ing the timer/counter.
Preparations 7-11