Pioneer S-HF21-LR User manual

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 2005
RRV3236
T – ZZK AUG. 2005 Printed in Japan
FOR PRECAUTION OF
REASSEMBLY AND DISASSEMBLY
The grille is attached to the cabinet by catches. Detach by pull-
ing it toward you.
The woofer is attached to the baffle by 4 external screws. To
detach it, first remove the grille. Then unfasten those screws.
When attachlng it, face its terminal downward.
The tweeter is attached to the baffle by 3 external screws. When
attach it with the plus terminal on the right and the minus termi-
nal on the left.
SPEAKER SYSTEM
S-HF21-LRXTW/UC
65S
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 lead in solder and 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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S-HF21-LR
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.
N
OTES:
PARTS LIST
Mark No. Description Part No.
SCHEMATIC DIAGRAM
1Protector SHA2529
2Packing Case SHG2692
3Polyethylene Bag SHL1447
4Operating Instructions SRD1305
(English, French)
Network Assy (SWN1765)
C
I N
Black
Black
Blue
Red
1.5µF/50V
Woofer
Tweeter
T135/60
P.SW
3
3
Speaker System
Speaker System
1
1
4
2
Mark No. Description Part No.
Network Assy SWN1765
Grille SMG1858
Input Terminal SKX1100
Speaker (Tweeter) SWD9006
Speaker (Woofer) SWM9020
Screw (for Tweeter) BYC30P180FZB
Screw (for Woofer) BKC35P180FZB
For Packing
Speaker System
P.SW
P.SW has extreme positive resistance-temperature characteristics. (Less than 0.3W at
the normal temperature). If an abnormal current flows to P.SW due to an excessive
input or unusual signal, P.SW heats up and the resistance rapidly increases. With this
function, the speakers are protected from excessive input or unusual signal. The
resistance value increases even when using a soldering iron for repairing, so allow it to
cool before using.

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PRODUCT APPEARANCE
1
1
1
Network Assy
1
1
12
1
Screw
11
3
4
1
10 1
1
4
Part Name
No. Num.
9
8
7
6
5
4
3
2
1 Catch
Screw
Grille
Cabinet
Duct
Input Terminal
Model Label
Acoustic Absorbent
Tweeter
Woofer