94
8.MAINTENANCE
(4) Replacing the USIO PC Board - To be conducted by a technician only -
To protect the service staff and other people from electric shock, accident and
injury and to prevent damage to the electric circuitry of the machine, be sure to
turn off the power switch before initiating the described task.
To prevent damage to electrical circuits due to incorrect connector connection,
check the direction of the connector carefully when connecting.
The PC board can be easily damaged by static electricity. If the PC board is handled
by a person charged with static electricity, parts mounted on the PC board can
become damaged. Before touching the PC board, be sure to remove static electricity
from you body by touching a grounded metal.
Turn off the power switch.
Dismount the back cover. (See P. 92 “8-3-3 (3) Replacing the CPU Board”
.)
Disconnect the four connectors, remove the three Phillips pan-head screws (with flat
and spring washers) (M3 x 6), then dismount the USIO PC Board.
To reinstall, follow the removal sequence in reverse.
Be sure to adjust the aim of the Gun Assys after completing the replacement work.
(See P. 51 "7-4-4 (b) GUN INITIALIZE 1P-2P (Gun Assy aim setting 1P-2P).")
WARNING
Phillips pan-head screws
(with flat and spring washers)
(M3 x 6)
Connectors
USIO PC Board
Summary of Contents for RAZING STORM
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Page 130: ...126 10 PARTS LISTS 10 8 Gun Assy...
Page 132: ...128 10 PARTS LISTS 10 9 Pedal Assy...
Page 134: ...130 10 PARTS LISTS MEMO...