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83 AVR
Whether the AVR is defective or normal can be determined by checking the appearance,
by
measuring the resistance between the lead lines with a circuit tester, or by practically loading it
onto the generator.
8-3-l THE CASE WHERE DETERMINATION ACCORDING TO THE APPEARANCE
IS POSSIBLE:
If some electronic part of the AVR is burnt, has become black, or if epoxy resin on the surface
has melted down, it can often be said that the AVR is defective.
8-3-2 THE CASE WHERE DETERMINATION BY MEASURING THE RESISTANCE
BETWEEN THE LEAD LINE AND THE COUPLER IS POSSIBLE:
Measure the resistance between the coupler
terminal and the lead line of the AVR. In the
normal case, the measured values should be as
shown below.
Fig. 83
Wire color
Yellow
Connect to the 8 terminal of the circuit tester
Red
White Green Black
5
.E
E
.;s
x
@W
W-
fE
OE
CL
t;s
Eg
6%
1
m 1 600K-1MR 1 75K-120KS2
Yellow
/ ;ft;;
I
zr;;;;ding ; 7K-lOKS2
I
4
1 400K-500KR :
4 4
! 4
250K-300KR ! ; 400K-5OOKS2
120K-130KS1 j
I
\ 2OOK-220KR
250K-300Kn ,\
7 45K-5OKR
4
500K-lMS2 75K-110KR \
7K-9KQ
\ 1 400K-500KS1
4
; 400K-5OOKfi 1
40K-46KQ j =
\ ! 200K-250KS2 1 4
i 4
[Wiring in the 4P coupler]
Red @--
Green @I
@White
@I Black
Note 1: Upper section of each column corresponds to
the case of 220, 230 or 240V specifications,
while the lower section corresponds to 100,
110 or 120V specifications.
Note 2: Sometimes the measured value does not
match the values in the table above because
errors of a circuit tester are big and in-
fluenced peripheral temperature.
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