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Troubleshooting
for U8 malfunction
Re-energize1
minute after
de-erergization
U8 is still
displayed
The unit returns to normal.
Conclusion:U8 is displayed due
to instant energization afte de-
energization while the capacitor
discharges slowly.
The zero-cross detection
circuit of the mainboard is
defined abnormal.Replace
the mainboard with the same
model
End
No
Yes
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Summary of Contents for MATRIX ASH-18AIM PT
Page 1: ...SERVICE MANUAL ASH 18AIM PT ASH 24AIM PT MATRIX SERIE ...
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Page 85: ...PARTS GUIDE MATRIX SERIE ASH 18AIM PT ASH 24AIM PT ...
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Page 89: ...84 ASH AIM PT ...
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