Pioneer XY-122, Installation Manual

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5 Drive unit replacement
___________________________________________________________________________________________________________
(1)
(2)
(3)
(4)
Replacement of HF drive unit
(5)
Red Terminal (+) :
Black Terminal (-) :
(6)
Replacement of LF drive unit
(1)
(2)
(3)
(4)
Tighten eight countersunk bolts of the HF waveguide.
HF waveguide/HF driver unit installed in XY-122 and XY-152 are the
same, so the same procedures should be taken to replace them.
Remove eight countersunk bolts from the HF waveguide.
Lift the waveguide up and remove the cables from the HF drive unit.
Remove the four nuts from the HF drive unit with a 10mm Spanner.
Replace the HF drive unit with a new one and tighten the four nuts
with the Spanner.
Connect the cables to the two terminals.
White cable
Yellow cable
Make sure to place the HF waveguide in the same orientation as
before replacing the drive unit.
LF driver units installed in XY-122 and XY-152 are different, but
almost the same procedures can be used to replace both LF drive
units.
CAUTION: Before replacing the LF drive unit on XY-122, remove the
HF waveguide from the enclosure. (See "5.1.2 Replacement of HF
drive unit")
Remove the eight socket head bolts from the LF drive unit.
Life the LF drive unit up and remove the cables from the LF drive
unit.
Replace the LF drive unit with a new one.
Connect the cables to the two terminals.
Red Terminal (+) : Brown cable
Black Terminal (-) : Blue cable
Black terminal
Red terminal
Black terminal Red terminal
White cable
Yellow cable
Blue cable Brown cable
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