Pioneer S-1EX Service Manual page 9

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2.3 NETWORK ASSY
Before removing the Network Assy, remove the grille and each speaker unit then disconnect the cords from the
speaker unit.
• For removal/reattachment of the Network Assy for the woofer: Only the woofer must be removed.
• For removal/reattachment of the Network Assy for the midrange/tweeter: Removal of all the units is required.
2.3.1 Network Assy for the Woofers
• The Network Assy for the woofers is located inside the
back board behind the lower woofer and secured with
4 screws.
(1) Remove the acoustic absorbent pads at the input
terminals.
(2) Remove the 2 nuts that secure the round connectors
from the lower input terminals.
(See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002)
(3) Remove the 4 screws that secure the Network Assy
then pull the Assy out through the hole where the
woofer was attached.
(4) When reattaching, pass the Network Assy through the
hole where the lower woofer was attached then secure
it in place with the 4 screws.
(5) Among the 3 pairs of cords from the Network Assy,
connect the cords with black tape to the lower input
terminals and secure them with the nuts.
(See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002)
(6) Apply adhesive to the secured nuts.
(Adhesive: DIABOND black/GYL-014)
(7) Reinstall the acoustic absorbent pads at the input
terminals.
(8) Among the 3 pairs of cords from the Network Assy,
connect and solder the remaining 2 pairs of cords
with white tape to the woofer and reattach the woofer
in the cabinet.
+: White with Black line
From the Network Assy
for the midrange/tweeter
From the Network Assy
for the woofers
Fig. 2-1: Input terminals (inside the cabinet)
Upper side
Bottom side
: Screws
Fig. 2-2: Specifications for attaching
the Network Assy for the woofers
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2
(See Figs. 2-5 to 2-8.)
(See Fig. 2-2.)
(See Fig. 2-2.)
(See Figs. 2-5 to 2-8.)
Apply adhesive.
-: White
Apply adhesive.
Upper side
Bottom side
: Screws
Fig. 2-3: Specifications for attaching the
Network Assy for the midrange/tweeter
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2.3.2 Network Assy for the midrange /
tweeter
• The Network Assy for the midrange/tweeter is attached to
the inside of the left side board behind the upper woofer,
using 4 screws.
(1) Remove the acoustic absorbent pads at the input
terminals, inside and at the rear of the chamber, and
behind the chamber.
(See Figs. 2-5 to 2-8 and 2-9 to 2-11.)
(2) Remove the 2 nuts that secure the round connectors
from the upper input terminals.
(See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002)
(3) Remove the 4 screws that secure the closure panel
inside the chamber, remove the 4 screws that secure
the Network Assy, and pull the Network Assy out
through the hole where the woofer was attached.
(See Figs. 2-3 and 2-4. Tool: Screwdriver/GGK1012)
(4) When reattaching, pass the Network Assy through the
hole where the upper woofer was attached and secure
it in place using the 4 screws.
(See Fig. 2-3. Tool: Screwdriver/GGK1012)
(5) Among the cords from the Network Assy, connect the
cords with the round connectors to the upper input
terminals and secure them with the nuts.
(See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002)
(6) Apply adhesive to the secured nuts.
(Adhesive: DIABOND black/GYL-014)
(7) Pass the 2 pairs of cords from the closure panel
through behind the chamber then secure the closure
panel from inside the chamber, using the 4 screws.
(See Fig. 2-4.)
(8) Reinstall the acoustic absorbent pads at the input
terminals, inside and rear of the chamber, and behind
the chamber.
(See Figs. 2-5 to 2-8 and 2-9 to 2-11.)
(9) Connect and solder the cords to the coaxial-unit
speaker and reattach it in the cabinet.
Fig. 2-4: Specifications for attaching the
closure panel (cross-sectional view of the
coaxial-unit speaker)
S-1EX
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4
A
B
C
D
E
Closure panel
: Screws
Chamber
F
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