HP 85020A Operating And Service Manual page 61

Model 85020A/B
Service
4. Remove the protective backinc from the new serial number label
and applv it over the foil backinq.
5. Solder the preamplifier wires back into place. Solder the
white/red wire to pin
2
on the bridne housinq (see Fiqure
8-6). Solder the white/black wires to pin 1 and the bottom of
the solder luq. Be sure that pin 1 and the solder luo are
wired together.
6. Slide the dress cover back into place.
7. Replace the port cover and its screws.
8. Perform the preamplifier adjustment procedure outlined below.
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