Bernina B 570 - Page 26

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DRAFT – VERSION
Check:
LED 3 / FPGA
Field Programmable Gate Array
-
LED 4 / CPU
Central Processing Unit
(Zentrale Prozessor Einheit)
Target state:
flashes = ok - firmware has been
saved
Flashes long-short = ok - processor is
working
Actual status:
does not flash = firmware is not
loaded or recognized
not lit = processor does not work
Repair note:
• Reload firmware via alternative
access
• Replace PCBA-Power.
• Replace PCBA-Base.
• Replace PCBA-CPU-Module
• Check LED 1-2
• Replace PCBA-Power.
• Replace PCBA-Base.
• Replace PCBA-CPU-Module