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Troubleshooting
(D)
Ramp waveform
stepped?
No
Intense flicker?
No
Frequency response
abnormal?
No
Replace A20 board
6-28
Y_EVEN, Y_ODD, PB
Yes
and PR of A20J110 or J100
stacked in certain location?
(See Figure 6-3 and 6-4)
No
Yes
Replace A20 board
Does frequency
Yes
response differ from
that of normal WFM in
STATUS mode?
No
Yes
Replace A10 board
Yes
For 90 % or more,
replace A10 board, For
10 %, replace A20
board
WFM 1125 Option 0A/0B/0C/0D Service Manual
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