The fact that you ask this question tells us that you did not do a Google search for a schematic for this radio, with all of the information you need.
If this is a used radio it may need a proper alignment if the receive circuit has been tampered with, the "S" meter setting may be correct if the receive needs any adjustment. Sometimes a new radio may also need the receive circuit aligned. If you feel that the radio needs a "Receive Preamp" indicates a need for an alignment.
If you don't know what you are doing, it would be best to take it to someone (with the proper equipment and tools) who can align the radio properly.
The proper equipment should be used to align the "S" meter ..... or if you want ..... wherever you think it should be ..... which would be a mistake if it makes you happy.
This information came from the schematic for the radio board number EPT69501-1A dated Oct 30, 2001.
"S" meter settings:
VR1 is AM & FM
VR2 is SSB (USB & LSB)
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