Panasonic EY7201-U1, Руководство по обслуживанию

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< TROUBLE > < CHECK > < REMEDY >
Does not speed- <CHECK FET.> NO Repair the contact
control.
→
Even if FET block is defective, it can not be replaced individually.
→
or replace switch
Replace whole switch block. & FET block.
Remove the FET circuit block and check the lead wire terminals.
These terminals are open normally when there is an open circuit (
Ω
)
between the green and red lead wires, and between the black and
red lead wires.
NOTE:
* FET is weak against static electricity.
** The resistance value may be some differences depends on the
measurement range.
Does not vibrate <CHECK ANVIL.> NO Replace anvil.
or weakness of
→
Check wear condition of anvil. If no less than 1mm from
→
vibration. the corner at (A) side or 0.5mm from the corner at (B) side,
anvil is OK.
↓
OK
<CHECK HAMMER.> NO Replace hammer.
Check wear condition of hammer. If no less than 2mm from the corner
→
at (C) side or 1mm from the corner at (D) side, hammer is OK.
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EY7201-U1