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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-81B-LR-K
RRV3854
T-ZZR OCT. 2008 Printerd in Japan
SPEAKER SYSTEM
S-81B-LR-K
/SXTW/E5
S-81B-LR-QL /XTW/E5
S-81B-LR-W /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


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1. REASSEMBLY AND DISASSEMBLY PRECAUTIONS
· The grille is attached to the cabinet by the magnets.
Detach by pulling it toward you.
· The network is attached to the cabinet by 3 screws.
When detaching it, detach the parts with following order.
1. Detach the speaker unit.
2. Disconnect the wire on the speaker.
3. Disconnect the wire on the input terminal.
4. Unfasten 3 screws on the network.
Attach the parts in reverse order, when attaching the
network.
· The woofer-tweeter coaxial speaker unit is attached to the
baffle by 6 external screws. The speaker unit is covered
by trim rings attached by double-faced tape.
When detaching the driver, detach the trim ring first.
1. Insert the minus screwdriver in the gap between the
trim ring and the speaker frame.
2. Peel off the trim ring slowly. Be careful not to damage
the trim ring.
3. Unscrew 6 screws on the speaker unit.


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2. EXPLODED VIEWS AND PARTS LIST
Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The
mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
NOTES:
2.1 PACKING
1
Protector
SHA6041
2
Protection Sheet
SHC6012
3
Silk Bag
SHC6085
4
Polyethylene Bag
SHL6028
5
Packing Case
(for S-81B-LR-K)
SHG6379
(for S-81B-LR-QL)
SHG6382
(for S-81B-LR-W)
SHG6383
NSP 6
1..Accessory Set
(for S-81B-LR-K)
SME6148
(for S-81B-LR-QL, S-81B-LR-W)
SME6149
7
2..Operating Instructions
FRRD-234
(English, French, German, Italian,
Dutch, Spanish, Chinese, Russian)
8
2..Cleaning Cloth
SER1358
(for S-81B-LR-K)
9
2..Polyethylene Bag S2
SHL1295
NSP 10
1..Spike Set
FREA-067
11
2..Spike
SBA6080
12
2..Spike Base
SBG6001
13
2..Polyethylene Bag S0
SHL1259
NSP 14
1..Accessory Set
FREA-066
15
2..Packing
FREC-064
16
2..Polyethylene Bag S0
SHL1259
17
Paper Protector
SHB6072
PACKING Parts List
Mark No.
Description
Part No.
Mark No.
Description
Part No.
Speaker System
Grill Assy
Packing
Grill Assy
Serial No. Label
(1/2)
(1/2)
(1/2)
FRONT
Tape
(2/2)
(2/2)
(2/2)


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2.2 CS ASSY
FRONT


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NSP 1
1..Cabinet
(for S-81B-LR-K)
FRMM-228
(for S-81B-LR-QL)
FRMM-227
(for S-81B-LR-W)
FRMM-229
NSP 2
2..Fung Nut M4
SBN1069
NSP 3
2..Fung Nut M6
SBN6026
NSP 4
2..Magnet
SYM6003
5
1..Grill Assy
FRMG-234
6
2..Badge
FRAM-048
7
2..Packing
FREC-122
NSP
2..Gasket
FREC-121
NSP
2..Grille Frame
FRMC-009
NSP
3..Grille Net
RC-801K-31
NSP
2..Magnet
SYM6003
8
1..Network
FRWN-190
9
2..Gasket
FREC-130
NSP
2..Circuit Board
FRNR-014
10
Felt (SP Unit Holes)
FREC-128
11
Gasket (Frange)
FREC-129
12
Cosmetic Flange
FRNH-053
13
Port Ring
(for S-81B-LR-K)
FRNH-055
(for S-81B-LR-QL, S-81B-LR-W)
FRNH-054
14
Gasket (TW Connector)
SEC1495
NSP 15
Gasket (SP Unit)
SEC1543
16
Input Terminal Red
SKX6008
17
Input Terminal Black
SKX6009
18
Speaker
W12FU85-51DX
19
Spike
SBA6080
20
Spike Base
SBG6001
21
Screw (SP Unit)
SBA1245
22
Screw (NW Board)
SBA6015
NSP
Model Label
(for S-81B-LR-K)
FRAN-414
(for S-81B-LR-QL)
FRAN-413
(for S-81B-LR-W)
FRAN-415
NSP
Acoustic Absorbent
FRMV-106
NSP
Acoustic Absorbent
SMT6042
CS Assy Parts List
Mark No.
Description
Part No.