-10-
RESISTANCE/DIODE TEST
1) Measure a resistor of about half of the full scale value of each resistance range. Compare the kit meter
readings to those from a meter of known accuracy.
2) Measure the voltage drop of a good silicon diode. You should read about 700mV. Power diodes and the base
to emitter junction of power transistors may read less.
If any of these tests fail:
a) Check the values and the soldering of resistors PTC - R2, R20 - R27, and R35.
h
FE
1) Set the range switch to h
FE
and insert a small transistor into the appropriate NPN or PNP holes in the
transistor socket.
2) Read the h
FE
of the transistor. The h
FE
of transistors varies over a wide range, but you will probably get a
reading between 100 and 300.
If this check fails:
a) Check that the transistor socket is aligned according to Figure E.
b) Check the value and soldering of resistors R18 and R19.
FINAL ASSEMBLY
r
Peel the backing off of the shield label and stick it onto the case bottom in the location shown in Figure Pa.
r
Snap the case bottom onto the case top and fasten with the two 10mm screws as shown in Figure P.
Case
Bottom
Screws
Case Top
Figure P
Battery
Case Bottom
Shield Label
Figure Pa
Summary of Contents for M-1007K
Page 19: ...18 SCHEMATIC DIAGRAM...
