Table of Contents
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Troubleshooting
Start
Turn on the power
CRT
non-luminous?
CRT blinks?
CRT full white
display?
Graticules
displayed?
No waveform
displayed?
Low quality of
waveform
displayed?
To (E), page 6-30
6-22
No
non-luminous
Yes
No
Fan down?
Yes
No
Yes
No
Yes
No
Yes
Yes
No
LEDs
No
Replace Power Supply
Yes
No
Yes
WFM 1125 Option 0A/0B/0C/0D Service Manual
Replace Fan
To (A), page 6-23
To (B), page 6-25
To (C), page 6-26
To (D), page 6-28
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