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Step
4
Next
Test
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Test
Switch PC Board
resistance test.
No dynamic test
is possible.
Remove leads
401/403, 1/8, 9,
12, 4/5 and
402/404.
Repair Action
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Replace Switch PC Board
Check
Terminals on Switch
PC Board:
1/8 (pos) to
12 (neg)
1/8 (neg) to
12 (pos)
9 (pos) to
4/5 (neg)
9 (neg) to
4/5 (pos)
1/8 (pos) to
9 (neg)
1/8 (neg) to
9 (pos)
12 (pos) to
4/5 (neg)
12 (neg) to
4/5 (pos)
12 (pos) to
401/403 (neg)
12 (neg) to
401/403 (pos)
9 (pos) to
402/404 (neg)
9 (neg) to
402/404 (pos)
Test
Result
>1K ohms
<100 ohms
<100 ohms
>1K ohms
>1K ohms
<100 ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
>1K ohms
<100 ohms
<100 ohms
>1K ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
>1K ohms
<100 ohms
Conclusion
OK
Short
OK
Open
OK
Short
OK
Open
OK
Open
OK
Short
OK
Open
OK
Short
OK
Short
OK
Open
OK
Open
OK
Short
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con-
tact your local Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION