FS-6020
1-5-9
(1-8) Error code F010 [F1] (code ROM checksum error)
Detection conditions
• Checksum of the code ROM PWB attached to the socket (YS1) on the main PWB malfunctions.
Corrective measures
Is the code
ROM on the main
PWB inserted properly
into the socket?
Reattach the code ROM PWB
properly to the socket.
Replace the code ROM PWB.
End
Ye s
Ye s
No
No
OK?
Replace the main PWB. (See
page 1-6-25.)
Start
* Possible defective locations
(causes)
• Code ROM PWB
• Main PWB
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