Sega type twin F355 - Manual (Page 78)

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Put the Game Board in the Carton Box (an accessory) together with the Shield
Case when requesting for the replacement or repair. Transporting the Game
Board in an undesignated status for replacement/repair is unacceptable.
18. GAME BOARD
In order to prevent electric shock and short circuit hazards, be sure to turn
power off before performing work.
Be careful so as not to damage wirings. Damaged wiring can cause fire,
electric shock and short circuit hazards.
Do not expose the Game BD, etc. without a good reason. Failure to observe
this can cause electric shock or malfunctioning.
The electronic parts on the IC Board could be damaged due to human body's static
electricity. Before performing IC Board related work, be sure to discharge
physically accumulated statics by touching grounded metallic surfaces, etc.
STOP
IMPORTANT!
18 - 1 TAKING OUT THE BOARD
Turn power off.
Take out the 2 truss screws, unlock and remove the Back Door Lower.
Disconnect all of the Connectors connected to ASSY MAIN BOARD DX.
Remove the 2 Wing Bolts and take out ASSY MAIN BD DX with the Shield Case as is mounted.
WING BOLT(2)
M4 X 25,flat washer used.
TRUSS SCREW(2)
M4 X 30,flat washer used.
FIG. 18. 1 a
1
2
3
4