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SECTION IV
TESTING/REPLACING THE SWITCH/PCB ASSEMBLY
Note: There are currently several different switch versions. The instructions for
checking the PCB are the same for all versions. The different switches are
addressed individually in this chapter.
Testing the Printed Circuit Board Charge Circuit
A. Remove the facecap from the Vulcan as described in Section I.
B. Place the Vulcan on a table or bench with the open end facing upwards and with the
handle away from you.
C. Unscrew and remove the reflector assembly from the lamp holder and place the
assembly aside.
D. Disconnect the negative (black) battery lead. (See pictures on Page 11).
E. Place a multimeter into the Continuity Check position.
F. Place one meter lead onto the negative charge contact, and the other meter lead onto
the negative (black) battery lead. The meter should indicate continuity.
G. Place a multimeter into the Diode Check Position.
H. Place the positive (red) meter lead onto the positive (red) charge contact. Place the
negative (black) meter lead onto the positive (red) battery terminal. The meter should
read between .5 and .7 Volts. (Continuity through a diode junction.)
I. Place the negative (black) meter lead onto the positive (red) charge contact. Place the
positive (red) meter lead onto the positive (red) battery terminal. The meter should read
Over Range. (Open circuit across reversed diode junction.)
J. Set a multimeter to the ohms position.
K. Place one meter lead onto the positive charge contact, and the other meter lead onto
the negative charge contact. The meter should read between 1.76 and 2.64 K ohms.
L. If the switch/PCB fails any of the above tests it must be replaced.
M. If the switch/PCB passes these tests, the lamp is good, the battery is good, and the
Vulcan still does not light: If the Vulcan has a toggle switch, replace the board. If
the Vulcan has the older style ‘C’ shaped contact, check the switch contact on the
printed circuit board. (See page 19.)
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Содержание FIRE VULCAN
Страница 31: ... 31 ...
Страница 32: ...Obsolete Style With Paddle Switch 32 ...
Страница 33: ... 33 ...
Страница 42: ... 47 FIRE VULCAN REPLACEMENT PARTS 42 ...
Страница 43: ...Jumper A Jumper B 43 ...