HP 8753D Option 011 Service Manual page 145

Figure TMT4 here.
If the source is working, but the R, , or B input traces appear to be in error, refer to
Chapter 8, \Receiver Troubleshooting."
The following symptoms may also indicate receiver failure.
Receiver Error Messages
CAUTION: OVERLOAD ON INPUT A; POWER REDUCED
CAUTION: OVERLOAD ON INPUT B; POWER REDUCED
CAUTION: OVERLOAD ON INPUT R; POWER REDUCED
4-16 Start Troubleshooting Here
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Figure 4-9. Typical Measurement Trace
RAFT
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