Fluke II Series Service Manual

Section
3
Maintenance
CONTENTS
PAGE
3-1.
INTRODUCTION
3-2
3-2.
PCA ACCESS AND
GENERAL MAINTENANCE
3-2
3-3.
DISPLAY ACCESS
34
3-4.
CLEANING
3-4
3-5.
PERFORMANCE TESTS 3-5
3-6.
Initial Procedure 3-5
3-7. Display Test
3-5
3-8.
DC Voltage Test
3-5
3-9.
AC
Voltage Test 3-6
3-10.
Resistance Test 3-6
3-11.
Diode
Test
3-7
3-12.
DC
mA Test
(75/21
&
77/23
Only) 3-8
3-13.
DC Amps Test
(73. 75/21,
and
77/23 Only)
3-8
3-14.
CALIBRATION 3-8
3-15.
TROUBLESHOOTING 3-8
3-16.
Supplemental Troubleshooting Procedures 3-11
3-17.
CHECKING
THE
CRYSTAL
OSCILLATOR
3-11
3-18.
CHECKING THE REFERENCE VOLTAGE 3-11
3-19.
CHECKING
DISPLAY
DRIVE
VOLTAGE
3-11
3-20.
CHECKING BEEPER
DRIVE
SIGNAL 3-11
3-21.
TRACING THE VDC SIGNAL PATH 3-11
3-1

Fluke II Series Specifications

General

True RMS	Yes
Temperature	-40 °C to 400 °C
Continuity	Yes
Diode Test	Yes
Safety Rating	CAT III 600V
Voltage DC	600V
Voltage AC	600V
Current DC	10A
Current AC	10A
Resistance	40MΩ
Battery Life	400 hours
Warranty	3 years