Philips FM242 Service Manual page 18

EN 18 5. FM242 AA Service Modes, Error Codes and Fault Finding
5.8 Repair Tips
If one of the errors of the error buffer points to a defective
supply, then the supply-panel must be send for central repair.
If the symptoms (still to be communicated; e.g. when VS-value
is too high some pixels do not extinguish, when VS-value is too
low some pixels do not enlighten) match with a possible
misalignment of a supply-line, this supply-line could be
checked, and re-aligned.
Only do this if there is a slight spec-violation.
In case it does not help, re-align to the previous wrong setting,
to keep cause-image in tact, for central repair workshop.
Replace supply panel by a new one, and match the supply with
the pdp. (See alignment instructions in chapter "Alignments").