No. P10224
P. 39 / 47
12. MAINTENANCE AND TROUBLESHOOTING (continued)
12.3Welding troubleshooting (continued)
12.4 Precaution against P.C.B. replacement
１
CN1
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Be sure that the connector number inscribed on P.C.B
matches the number indicated on the connector.
●
Completely connect them until the connector clicks.
Failure to do so may result in damage of P.C.B and the
machine.
●
P.C.B.P6906P does not include EPROM. When
replacing P.C.B., install the EPROM on the original
P.C.B.
NOTE: match the connector numbers when connecting.
12.5 Insulation resistance test
WARNING
Follow the instructions below to prevent electrical shock.
When touching charging parts, critical electric shock and burn may occur.
●
Have a qualified person measure insulation resistance or test withstand voltage test.
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Install a fence around the welding machine to keep others away from it.
