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(c) IDENTIFYING A .V .R . TROUBLE by
MOUNTING and OPERATING in THE
GENERATOR
SCR or transistor damage cannot be
detected by simply looking at the A .V .R . or
checking the lead resistance .
Check it by mounting the suspectedly faulty
A .V .R . in a normal generator, or mount a
mormal A .V .R . in a generator which fails to
generate voltage .
*.Checking.table.for.analogue.circuit.tester.
..RGX7100./.RGX7800
Apply.red.⊕.needle.
of.the.circuit.tester
ⓐ
White.
ⓐ
-
White.
ⓑ
1 .8M
Red.
①
4 .4M
Green.
②
4 .6M
White.
③
4 .0M
Blue.
④
4 .2M
Blue.
Apply.black.⊖.needle.of.the.circuit.tester
ⓑ
①
Red.
Green.
2 .1M
5 .0M
-
2 .1M
2 .0M
-
2 .1M
5 .1M
1 .7M
4 .5M
1 .8M
4 .7M
- 21 -
AVR unit
②
③
White.
Blue.
5 .1M
4 .6M
2 .1M
1 .9M
4 .9M
4 .4M
-
4 .6M
4 .5M
-
4 .7M
4 .2M
White
Red
Green
White
Blue
Blue
(Ω) (R±20%)
④
Blue.
4 .2M
1 .6M
4 .1M
4 .2M
3 .8M
-
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