Subaru Robin SGX3500 - Manual (Page 23)

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(a) A.V.R. TROUBLE IDENTIFICATION by APPEARANCE
If an A.V.R. electronic part is burnt dark, or the surface epoxy resin melted, it often indicates
A.V.R. trouble.
(b) IDENTIFYING A.V.R. TROUBLE by CHECKING INTER-LEAD RESISTANCE
Check the inter-lead resistance of the A.V.R. with a tester, referring to the following table.
If the tester readings very greatly from the values specified in the table on next page, the
A.V.R. is faulty.
NOTE : Take tester inaccuracy into account in reading the tester
(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
normal A.V.R. in a generator which fails to
generate voltage.
12.88M
Apply red ㊉ needle
of the circuit tester
12.3M Blue-② 2.62M 2.56M 13.06M
6.40M
Blue-① 2.74M 2.72M 5.98M 5.96M 13.5M
Yellow-② 2.82M
5.41M 5.70M 6.56M
2.86M 6.02M 5.53M
2.88M 2.90M 2.52M 3.40M
3.13M 3.17M 2.73M 3.60M
Green 22.33k
Red 23K
Yellow-① 2.23M 2,95M
(Ω）（R±２０％）
SGX7500(60Hz-120/240V)
apply black ㊀ needle of the circuit tester
Green Red Yellow-① Yellow-② Blue-① Blue-②
*Chacking table for analogue circuit tester (Resistance).
(Ω）（R±２０％）
Apply red ㊉ needle
of the circuit tester
SGX3500/5000
(60Hz-120/240V)
12.18M
apply black ㊀ needle of the circuit tester
5.20M
9.68M
6.10M 6.25M
5.12M
9.50M
6.75M
6.09M
6.90M
5.66M 6.07M
9.42M
12.25M
12.69M
Blue-① Blue-②
7.0M
11.92M
White-②
9.72M
Black Red
5.47M
2.42M
8.48M
8.88M
White-①
2.54M
2.95M
6.2M
12M
12.45M
3.02M
407K
6.90M
Black
Red
White-①
White-②
Blue-①
Blue-②