M1series_ServiceManual_e - 第56页
4 Electrical Section 4-4 Control Board Handling Control Board Note the followings when handl ing PC boards. z Do not touch control boards by wet hands. z Do not handle control boards where t here are metal chips around. …
4 Electrical Section
4-3
Not protectedProtected
Cleaning of Disk Drive
The head of a floppy disk drive gets dirty from repetitive writing and loading. If you continue using it
without any cleaning, malfunctions may occur and it also shortens the life of the floppy disk. Clean monthly
the head of the floppy disk drive with a conventional head cleaner .
4 Electrical Section
4-4
Control Board
Handling Control Board
Note the followings when handling PC boards.
z Do not touch control boards by wet hands.
z Do not handle control boards where there are metal chips around.
z To handle control boards in the control rack, never touch the connecting portion where gold is plated. If
the connecting portion is covered with dust, the machine doesn't work properly. Clean with alcohol.
Gold Plating
4 Electrical Section
4-5
Electrodes on Feeder / Feeder Bank
When electrodes on the feeder bank and the tape feeder get dirty, clean them as follows:
Clean them very lightly to just get rid of the dust with dry cotton swab or nonwoven fabric. Check the pins
for deformation. If you find a bent pin, do not use the feeder as it is. It may result in a flaw on electrodes.
Do not use alcohol, water base detergents and organic solvent, such as
thinner, benzene and acetone.
Do not use sandpaper and tools with sharp blade or edge, such as a knife and
a screwdriver.
NOTE: If they get stubborn stains, try not to get rid of them forcedly. Please contact us.
Cotton swab
Pin Electrodes on feederElectrodes on feeder bank
Cotton swab