PIONEER S-4EX-W/SXTW/E5 - Service Manual Immediate Download

ORDER NO.

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2008

S-4EX-W

RRV3848

T-ZZR OCT. 2008 Printerd in Japan

SPEAKER SYSTEM

S-4EX-W

/SXTW/E5

S-4EX-QL /SXTW/E5

This service manual is intended for qualified service technicians; it is not meant for the casual

do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been

trained to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may

void the warranty. If you are not qualified to perform the repair of this product properly and safely,

you should not risk trying to do so and refer the repair to a qualified service technician.

WARNING

This product contains certain electrical parts contain chemicals which are known to the State of California to cause cancer,

birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 - Proposition 65

· For better audio quality, the receptacle terminals and terminal fittings of the speaker unit are soldered.

When disassembling/reassembling the speaker unit, be sure to follow the instructions in this manual. If

you will be working on the speaker unit with it turned on its side, lay it on a piece of soft cloth, etc., to

protect the cabinet from being scratched.

S-4EX-W

How to Attach/Detach the Grille Net

The grille net is provided with this speaker system. To attach

or detach the grille net, proceed as follows.

(1) To attach the grille net, align the six projections of the

grille net with the holes on the speaker unit then push it

in.

(2) To detach, hold the lateral edges of the upper part of the

grille net with both hands and gently pull it toward you to

detach the upper part of the grille net.

(3) Hold the lateral edges of the central part of the grille net

with both hands and gently pull it toward you to detach

the central part of the grille net.

(4) In the same way, hold the lateral edges of the lower part

of the grille net and pull it toward you. The entire grille

net will then be detached.

1. REASSEMBLY AND DISASSEMBLY PRECAUTIONS

1.1 GRILLE

S-4EX-W

[2] Detaching the CST unit

To work on the CST unit, place a piece of soft cloth for

protection on the upper plate to protect the cabinet from

being scratched, then place the CST unit on it.

· The midrange unit and tweeter are integrated into a coaxial

unit. This CST-unit speaker is attached to the baffle board

with four hexagon-socket-set screws from the outside.

When disassembling, remove all these screws, pull out the

CST-unit speaker, then remove the solder to disconnect

the cords.

· When reattaching, after connecting the cords, solder the

terminals for the woofer then place the woofer so that the

terminal board comes to the bottom-plate side.

· When reattaching, connect the cord with black tape to the

tweeter and the cord with white tape to the midrange unit

then solder the terminals. Place the CST unit so that the

terminal board of the midrange unit comes to the bottom-

plate side then turn it counterclockwise slightly to secure it.

[1] Detaching the woofer

To work on the woofer, provide a stand with a height of

approx. 15 cm, place a piece of soft cloth for protection on it,

then place the woofer on the cloth.

Drape a piece of soft cloth from around the edge of the hole

where the woofer was attached to the duct, to protect the

cabinet from being scratched.

· The woofer is attached to the baffle board with 6 hexagon-

socket-set screws from the outside.

When disassembling, remove all these screws, pull out the

woofer, then remove the solder to disconnect the cords.

1.2 SPEAKER UNIT

For better audio quality, the receptacle terminals and terminal fittings of the speaker

unit are soldered. When disassembling/reassembling the speaker unit, be sure to

refer to the following figures.

Tools to be used

· Hexagonal wrench (4 mm): GGK1024

· Soldering iron: GGK1069

· Lead-free solder: GYP1006

Piece of soft cloth for protection

Piece of soft cloth

for protection

White tape

Terminal size: Extra large

Terminal size: Large

: White with Black-line

: White

Woofer

Upper

side

White tape

Black tape

Terminal size:

Large

Terminal size:

Large

Terminal size:

Small

Terminal size:

Extra large

: White with

Black-line

: White with

Black-line

: White

Upper

side

CST unit

Terminal board

of the tweeter

Terminal board

of the midrange

S-4EX-W

1.3 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 beforehand.

· For removal/reattachment of the Network Assy for the midrange unit and the tweeter: Removal of all the units is

required.

[1] Network Assy for the Woofer

· The Network Assy for the woofer is located inside the left

panel behind the woofer and secured with four screws.

(1) Remove the acoustic absorbent pads that are located near

the input terminals.

(2) Remove the two 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 four screws that secure the Network Assy then

pull the Assy out through the hole where the woofer was

attached. (See Fig. 2-2.)

(4) When reattaching, pass the Network Assy through the hole

where the woofer was attached then secure it in place with

the four screws. (See Fig. 2-2.)

(5) Among the two pairs of cords from the Network Assy,

connect the cords with the round connectors 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 near the input

terminals.

(8) Connect and solder the remaining pair of cords from the

Network Assy to the woofer and reinstall the woofer in the

cabinet.

[2] Network Assy for the midrange unit

and the tweeter

· The Network Assy for the midrange unit and the tweeter

is located inside the right panel behind the woofer and

attached with four screws.

(1) Remove the acoustic absorbent pads that are located near

the input terminals, inside and at the rear of the chamber,

and behind the chamber.

(2) Remove the two 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 four screws that secure the closure panel

inside the chamber, remove the four 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 woofer was attached and secure it in place, using

the four 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 closure panel and the two pairs of cords from it

through behind the chamber then secure the closure panel

from inside the chamber, using the four screws.

(See Fig. 2-4.)

(8) Reinstall the acoustic absorbent pads near the input

terminals, inside and at the rear of the chamber, and behind

the chamber.

(9) Connect and solder the cords to the CST-unit speaker and

reinstall it in the cabinet.

: Screws

Upper side

Bottom side

Front side

Chamber

: Screws

Fig. 2-1: Input terminals (inside the cabinet)

Fig. 2-2: Specifications for attaching

the Network Assy for the woofer

Fig. 2-3: Specifications for attaching the

Network Assy for the midrange/tweeter

Fig. 2-4: Specifications

for attaching the closure panel

(cross-sectional view of the CST unit speaker)

: White with Black line

From the Network Assy

for the midrange/tweeter

: White

Apply adhesive.

From the Network Assy

for the woofer

Note: The NW Assy shown in this photo is for the

S-1EX, but the shape of the closure panel is the

same.

Apply adhesive.

Be sure to apply

adhesive only to the

head of a screw,

but not around the nut.

Closure panel

S-4EX-W

[3] Removal/Reattachment of Acoustic absorbent pads

Removal/reattachment of acoustic absorbent pads is necessary before or after removal/reattachment of the Network Assy.

Note:

When reattaching the Network Assy for the midrange unit and the tweeter, before reattaching the closure panel, be sure to

remove the acoustic absorbent pads located behind the chamber. If the closure panel pinches an acoustic absorbent pad when

it is secured, air leakage may occur, which may result in poor performance of this speaker system.

(1/2)

(2/2)

(1/2)

(2/2)

Place an acoustic absorbent pad

between the tweeter terminal board of

the CST unit and the cords.

NSP 1

Acoustic Absorbent

FRMV-126

NSP 2

Acoustic Absorbent

SMT1391

NSP 3

Acoustic Absorbent

FRMV-128

NSP 4

Acoustic Absorbent

FRMV-130

NSP 5

Acoustic Absorbent

SMT1392

NSP 6

Acoustic Absorbent

FRMV-135

NSP 7

Acoustic Absorbent

FRMV-136

NSP 8

Acoustic Absorbent

SMT1323

NSP 9

Acoustic Absorbent

SMV6021

NSP 10

Acoustic Absorbent

SMV2270

NSP 11

Acoustic Absorbent

SMV2271

NSP 12

Acoustic Absorbent

FRMV-129

NSP 13

Acoustic Absorbent

SMV2272

NSP 14

Acoustic Absorbent

SMT1395

Acoustic Absorbent Parts List

Mark No.

Description

Part No.

Mark No.

Description

Part No.