Pioneer SW-80 Service manual

POWERED SUBWOOFER

S-W80S

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Model

S-W80S

MYXCN AC220–230V

RemarksPower RequirementType

ORDER NO.

RRV2296

CONTENTS

1. SAFETY INFORMATION....................................2

2. EXPLODED VIEWS AND PARTS LIST .............3

3. SCHEMATIC DIAGRAM..................................... 6

4. PCB CONNECTION DIAGRAM .........................8

5. PCB PARTS LIST.............................................10

6. ADJUSTMENT.................................................. 10

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

PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2000

7. GENERAL INFORMATION .............................. 11

7.1 DISASSEMBLY .......................................... 11

8. PANEL FACILITIES AND SPECIFICATIONS

....................................................................13

T- ZZA APR. 2000 Printed in Japan

S-W80S

1. SAFETY INFORMATION

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 par ts 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

NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation.

REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the

continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or

equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.

Reading should not be above

0.5 mA

Earth ground

Device under test

Also test with plug reversed (Using AC adapter plug as required)

Leakage

current

tester

Test all exposed metal surfaces

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage, wattage , etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a on the parts list in this Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.

on the schematics and

2

2. EXPLODED VIEWS AND PARTS LIST

NOTES : 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. Screws adjacent to mark on the product are used for disassembly.

2.1 PACKING

56

4

(3/4)

4

(4/4)

PACKING PARTS LIST

Mark No. Description Part No.

S-W80S

1

3

4

2

(1/4)

4

(2/4)

1 PO Bag (680×880×0.04) 07–490031–00

2 Carton Box 07–390035–00

3 Operating Instructions 12–540052–11

(English/French/German/Italian/ Dutch/Swedish/Spanish/

Portuguese) 4 Packing Style foam 07–090000–11 5 Speaker Cord 02–100066–02

6 RCA Cable 02–300067–02

ACCESSORY ITEMS

÷ Speaker cords x 2 (02-100066-02)

÷ RCA plug cord x 1 (02-300067-02)

Red

Black

÷ Operating instructions x 1 (12-540052-11) ÷ Warranty card x 1

3

S-W80S

2.2 FRONT SECTION

18

10

12

2

1

11

3

14

2

3

4

PWRSW

A LED

1

7

8

LED

SG

LPF0

K

–15V

PG

+15V

SW1

PHASE SW

W8

W10

SUB LEVEL

W3

R8

LPF CORNER FRQ.

17

PC

IN

SG

C1

M4

+

R11

C2

C7

R10 VR1 W4

4

13

16 15

1

9

1

5

6

FRONT SECTION PARTS LIST

Mark No. Description Part No.

1 Screw (M4×18) 23–106302–18

(for woofer speaker drive)

2 Screw (M3×12) 23–104100–12

(for control panel)

3 Screw M3×6 23–104100–06

(for Power switch, LED PCB assy) 4 Control Panel 20–101022–01 5 Volume Knob (LEVEL) 20–101023–01

6 Frequency Knob (TURNOVER) 20–101024–01 7 Push Button (POWER) 20–101026–01 8 Push Button (PHASE) 20–101027–01 9 Woofer Speaker Driver 15–308006–00

10 Grille Assy 00–101021–01

4

Mark No. Description Part No.

11 Audio Cable 02–390034–03

(for INPUT PCBAssy M1 to FILTER PCB Assy M4)

12 Connect Cable 02–390035–06

(for POWER AMP PCB Assy J1 to

FILTER PCB Assy M5) 13 FILTER PCB Assy 00–011011–60 14 LED PCB Assy 00–011014–10 15 Nut (M3) 24–119003–00

16 Washer (M3) 29–103292–00 17 Screw M3×6 23–104611–06 18 Cable 02–390032–02

(for INPUT PCBAssy M2 to FILTER PCB Assy M6)

R12

R11

Q1

Q2

D3

D2

C6

R8

R7

3

R9

C11

C5

R16

0 '

G

D4

C7

W3

BR

J2

C12

R5

R3

R2

R1

U1

C10

C2

C9

C8

J1

+15

PG

–15

IN

SG

R6

D1

R4

C

C'

B

B'

A

A'

C4

C3

W2

W1

+

5

1'

XFR

SP+

J3

XFR

C.T

AC

R17

+

–

R14

R13

R15

R10

1

3 '

4 '

2

4

0

5 '

2 '

R2

R5

R4

R3

J2

E

G

+

––

J3

M3

H

C3

L1

H

AC IN

F1

N

M2

M4

PRIMARY

ZENIX U.S.A.

PIONEER SW–80S INPUT PCB

C4

R9

R8

R6

M1

CG

SG

OUT

R1

R7

C2

C1

J4

IN

W1

W2

OUT

13

21

3

1

10

9

3

2

4

7

3

5

6

5

22

14

15

13

11

12

11

23

11

12

25

12

17

20

24

16

17

18

19

8

14

15

2.3 REAR SECTION

S-W80S

REAR SECTION PARTS LIST

Mark No. Description Part No.

1 Rear Panel 21–301031–01 2 Safety Plate 21–301032–01 3 Screw (M4×20) (for rear panel) 23–106302–20 4 Screw (M4×12) 23–106111–12

(for power transformer)

5 Screw (M3.5×12) 23–105104–12

(for plastic hermetical box)

6 Screw (M3×12) 23–104102–12

(for I/O jack, RCA jack)

7 Screw M3×14 23–104111–14

(for heat sink to rear panel)

8 Screw M3×6 23–104611–06

(for POWER AMP PCB Assy)

9 Screw (M3×10) 23–104211–10

10 Screw (M3×12) 23–104211–12

11 Nut (M3) 24–119003–00

(for POWER PCB Assy)

Mark No. Description Part No.

12 Washer (M3) 29–103292–00

(for POWER PCB Assy) 13 Nut (M4) (for power transformer) 24–114004–00 14 Spring Washer (M4) 29–204202–00

(for power transformer) 15 Washer (M4) 29–104202–00

(for power transformer)

16 Plastic hermetical box 20–601025–01 17 Heat Sink 21–101037–01 18 PCB Bracket L 21–301043–01 19 PCB Bracket R 21–301052–01 20 Plate (for heat sink) 21–101057–01

21 Power Transformer (230VAC) 01–523054–71 22 AC Power Cord 02–300065–02 23 Red/White Cable 02–390012–02

(for woofer speaker driver) 24 INPUT PCB Assy 00–011012–40 25 POWER AMP PCB Assy 00–011013–80

5

1

234

S-W80S

3. SCHEMATIC DIAGRAM

A

B

C

OUTPUT

LEFT CH.

SPEAKER

OUTPUT

RIGHT CH.

SPEAKER

LINE OUT

AMP

LINE IN

+

–

+

–

+

–

+

–

M4

J4

J3

J2

INPUT PCB ASSY

A

(00-011012-40)

C2 390p C. CAP ±10%

C1 390p C. CAP ±10%

R1

15k

R7

1k

R6

1k

R8

150k

PART OF JL1

M1 M4

CABLE

(02-390034-03)

FILTER PCB ASSY

B

(00-011011-60)

1N-4148

C1

R1

4.7µ/35V

4.7k

C2A

0.033µ

MYLAR

0.0047µ/400V

C12

D1

D2

1N-4148

S2

+15V

2

4

– +

–15V

11

1

U1 (1/4) LF-347N

3

R2

75k

POWER SWITCH (20-101026-01)

BUFFER

0.01µ

C. CAP

±10%

C2 10µ/35V

0.01µ

C. CAP

±10%

C3

C4

VR2 50k–B

C10 10µ/35V

S1

PHASE SWITCH

(20-101027-01)

C11 10µ/35V

M6

R3 680/2W

SUB WOOFER

DRIVER

(15-308006-00)

R2

15k

R5 1k

R4 680/2W

CABLE

(02-390032-02)

+

–

M2

H

N

L1

Fuse Clips

5×20mm

F1 Fuse

2.5A

(06-300252-00)

M3

P2

S3

(02-390012-02)

M12

J3

RED

WHT

CABLE

S2

C3

0.01µ/250VACC40.22µ/250VAC

L1, C3, C4, R9: LINE FILTER

AC220–230V

×2 TYPE

R9

1M/1W

P1

T1 POWER TRANSFORMER

(01-523054-71)

S1

J2

D

6

CBA

1234

AC POWER CORD

(02-300065-02)

Note: Unless otherwise specified all resistors are 1/4W, 5%, CARBON FILM.

5

67

8

S-W80S

Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "PCB PARTS LIST".

POWER

LED PCB ASSY

D

(00-011014-10)

LD2

LED

CN9

A

PHASE INVERTER

R6

6 5

R5A 12k

47k

– +

U1 (2/4) LF-347N

7

R3

10k

R4

3.9k

POWER AMP PCB ASSY

C

(00-011013-80)

C12

2200µF

N. P.

14

OUTPUT

6

BOOTSTRAP

C3

22µ/50V

HIGHPASS FILTER LOWPASS FILTER

R7

C6

15k

C5

0.068µ

MYLAR

0.068µ

MYLAR

9

10

R8

270k

The power supply is shown with the marked box.

C4

10µ/25V

VCC

R3

22k

U1

107

STBY

GNDVEEVEE

GND

13

VCC VCC MUTE STBY

11-027294-00

(TDA-7294)

15 8 4 1

VEE

– +

R4

30k

9

+I/P

–I/P

8

U1 (3/4) LF-347N

D1

1N-4148

10µ/25V

3

2

C5

R2

430 C2

100µ/25V

R9

22k

R1

R6

10k

R5

20k

C7

0.1µ

MYLAR

VR1A

50k–B

6.8k

0.022µ

MYLAR

+42V

Q2

2N3906

R15

3.3k

R9

C11

VCC

400V/8A

R10

22k

C10

4.7µ/35V

R17

4.7k

(2W)

BR1

VR1B

50k–B

R13

10k

R14

20k

100µ/25V

15V/1W

1N-4744

R7

1.5k/1W

C6

10000µ/50V

13 12

C8

0.022µ

MYLAR

C9

D2

– +

U1 (4/4) LF-347N

Q1

2N3904

1N-4002

14

M5

J1

R11

10k

R12 10k

C8

100µ/25V

D3

15V/1W 1N-4744

R8

1.5k/1W

C7

10000µ/50V

D4

R11

220

+15V

R16

4.7k

(2W)

–15V

GND

VEE

–15V

GND

SUB I/P

R10

2.2k

–42V

R12

2.2k

C9

4.7µ/50V

CABLE (02-390035-06)

LED

B

C

D

The power supply is shown with the marked box.

DC

5

6

7

8

7

1

234

S-W80S

4. PCB CONNECTION DIAGRAM

A

SIDE A

B

FILTER PCB ASSY

C2

R2

C2A

R1

D1 D2

PC

LPF CORNER FRQ.

R9

W5

C8

C6

U1

+

W12

R8

W1

R7

W3

C5

W7

VR2

W6

R3

R6

R4 R5

4

W4

VR1

R10

C7

B

R11

+

C1

M4

IN

SG

SUB LEVEL

W14

PIONEER SW80–S BANDPASS FILTER PCB ASS'Y

C10

W11

+15V

PG

+

W10

W13

C3

–15V

SG

LPF0

C4

W9

+

LED

W8

M5

C11

PHASE SW

W15

SW1

+

D

LED PCB ASSY

LED ASSY

LDB+

REV . AB

1

K

W2

C9

R12

CN9

LED

LD2

21

GND

PWRSW

A

C12

M6

PWR SW

C

NOTE FOR PCB DIAGRAMS:

1. Part numbers in PCB diagrams match those in the schematic diagrams.

2. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.

3. Viewpoint of PCB diagrams

CapacitorConnector

SUBWOOFER DRIVER

SIDE A

P. C. Board Chip Part

D

8

DB

1234

SIDE B

5

T1 POWER TRANSFORMER

P2

P1

S3

S2

S1

67

SIDE A

C

POWER AMP PCB ASSY

SP+

J3

C12

XFR C.T

XFR

AC

–

R8

R14

3 '

R13

R10

1

1'

C5

+

W1

U1

R7

C11

R9

R3

Q1

D3

D2

R1

R2

R11

+

3

+

R15

2 '

D4

W6

+

C7

BR

W3

J2

R16

2

R6

D1

C4

+

W2

C3

+

Q2

ZENIX U.S.A RULES!

+

W7

R5

R4

CC'BB'A

A'

C9

C10

+

R12

C6

R17

W4

C8

IN –15

+

J1

C2

S-W80S

SG

PG +15

8

A

B

U1

R7

R6 R8

M1

SG

OUT

C2

W1

5

CG

A

INPUT PCB ASSY

W2

R5

C1

R2

IN

R1

J4

C

M4

R3

R4

J2

E

+

G

+

R9

C4

– –

P

H

M3

J3

C3

M2

+ +

L1

SPEAKER

PIONEER SW – 80S I / P PCB

AMP OUT

H

ZENIX U.S.A

PRIMARY

N

F1

AC IN

PIONEER SW–80S INPUT PCB

ZENIX U.S.A.

D

AC POWER

CORD

CA

6

7

8

9

S-W80S

5. PCB PARTS LIST

NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.

÷ The

÷ When ordering resistors, first convert resistance values into code form as shown in the following examples.

Mark No. Description Part No.

LIST OF PCB ASSEMBLIES

FILTER PCB ASSY 00–011011–60 INPUT PCB ASSY 00–011012–40 POWER AMP PCB ASSY 00–011013–80 LED PCB ASSY 00–011014–10

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.

Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by

J = 5%, and K = 10%). 560 Ω = 56 × 10 47k Ω = 47 × 10

0.5 Ω = R50 ...................................................................... RN2H Â 5 0 K

1 Ω = 1R0 ......................................................................... RS1P 1 Â 0 K

Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors).

5.62k Ω = 562 × 10

1

= 561................................................... RD1/4PU 5 6 1 J

3

= 473 .................................................. RD1/4PU 4 7 3 J

1

= 5621 ........................................... RN1/4PC 5 6 2 1 F

FILTER PCB ASSY

B

FILTER PCB ASSY has no service part.

INPUT PCB ASSY

A

OTHERS

F1 FUSE (2.5A) 06–300252–00

POWER AMP PCB ASSY

C

SEMICONDUCTORS

U1 POWER AMP IC (TDA-7294) 11–027294–00

LED PCB ASSY

D

LED PCB ASSY has no service part.

6. ADJUSTMENT

There is no information to be shown in this chapter.

10

R12

R11

Q1

Q2

D3

D2

C6

R8

R7

3

R9

C11

C5

R16

0 '

G

D4

C7

W3

BR

J2

R5

R3

R2

R1

U1

C10

C2

C9

C8

J1

+15

PG

–15 IN SG

R6

D1

R4

C

C'

B

B'

A

A'

C4

C3

W2

W1

+

5

1'

AC

R17

+

–

R14

R13

R15

R10

1

3 '

4 '

2

4

0

5 '

2 '

1

2

3

1

× 3

Safety Plate

Rear Panel

7. GENERAL INFORMATION

7.1 DISASSEMBLY

FRONT SECTION

Grill Assy

3

Slit

2

1

S-W80S

4

PWRSW

A LED

K

1

SW1

PHASE SW

W8

W10

SUB LEVEL

W3

R8

LPF CORNER FRQ.

PC IN

SG

M4

C1

+

R11

C2

C7 R10

VR1

W4

4

REAR SECTION

Removal of the Rear Panel

11

S-W80S

Removal of the INPUT PCB Assy and Power Transformer

1

3

2

× 2

× 3

1

PIO

PIONEER SW–80S INPUT PC

PIO

ZENIX UZENIX U.S.A.

ZENIX U.S.A.

R

N

NEER

EER SW

F1

SW

AC

AC IN

C IN

–80S INPUT PC

IN

80S INPUT PCB

H

B

N

L1

N

L1

H

M2M2

M

2

PR

PRIMARY

PRIM

IM

AR

Y

M4M4

M 4

C3

C 3

+

M3M3

M 3

J3

H

–

––

C4

C 4

–

G

J2

R9

E

+

R1

R

R1

1

+

R4R4

J4

R4

J4

2

R2

R

2

R3R3

R3

IN

OUTOUT

O

C1

U

W1

W

T

R5R5

R

1

5

W2W2

W

2

C2

R7

R8

R

8

CGCG

CG

OUTOUT

OUT

R6

R

6

SGSG

SG

M1M1

M

1

C2

+15

+

PG

U1

R2

J1

–15

C10

IN

SG

+

R3

C9

R1

4

C8

R9

W1

+

3

R17

D2

R7

A

+

B

C11

A'

+

C5

D3

C

W2

4 ' C6

R12

R11

Q1

R14

B'

+

C'

R4

+

C3

1'

D1

R5

R6

C4

5

R8

0

R16

G

2

0 '

1

R10

J2

R13

+

Q2

BR

3 '

–

C7

W3

D4

AC

5 '

R15

+

2 '

× 2

4

5

× 4

Removal of the POWER AMP PCB Assy and Heat Sink

Heat Sink

2

+15

+

PG

J1

–15

C10

IN

SG

+

C9

4

C8

R9

+

3

R17

D2

R7

D3

4 '

+

C6

R8

0

R12

R11

2

Q1

1

R10

R13

+

R14

Q2

3 '

C7

W3

D4

5 '

R15

+

2 '

POWER AMP PCB Assy

1

× 2

(M3×14)

Plate

× 2

1

(M3×12)

3

1

× 2

1

4

(M3×14)

4

(M3×10)

C2

U1

R2

R3

R1

W1

A

+

B

C11

A'

+

C5

C

W2

B'

C'

R4

+

C3

1'

D1

R5

R6

C4

5

R16 G 0 '

J2

BR

–

AC

Heat Sink

12

8. PANEL FACILITIES AND SPECIFICATIONS

PANEL FACILITIES

FRONT PANEL

S-W80S

1

2

345

POWERED SUBWOOFER

∫¿ˆ˘?∫

1 Power switch (POWER)

When pressed, power is turned ON; when pressed again, power is

turned OFF.

2 Power Indicator

Illuminates when the power is on.

3 Phase switch (PHASE — 0˚ / _ 180˚)

When depressed (_ 180˚), the output phase becomes the reverse of the input signal, and when raised (— 0˚ ), it is in the same phase

as the input signal. ÷ Normally, the switch is set to (— 0˚ ).

But when the sound connection between the subwoofer and

the left and right speakers sounds unnatural, try switching to

180˚ and set the switch in the position where the sound is natural.

4 Level knob (LEVEL)

Sets the subwoofer volume.

÷ Turn the knob slowly from the MIN position. ÷ With this unit, the bass level can be independently set, so do not

turn up the bass on the stereo amplifier.

5 Turnover knob (TURNOVER)

Sets the high limit of the frequency played back by the subwoofer. ÷ Setting Criteria

50Hz ... when the diameter of the left/right speakers is 20-cm or more.

100Hz . when the diameter of the left/right speakers is 10 – 25-cm.

200Hz . when the diameter of the left/right speakers is 12-cm or less.

13

S-W80S

REAR PANEL

67

R

6 Line Level Input terminal (LINE LEVEL INPUT)

Connects to the stereo amplifier’s SUBWOOFER PRE-OUT terminal, with the specially provided RCA plug cord.

7 Line Level Output terminal (LINE LEVEL OUTPUT)

Used for connecting other equipment through the amplifier.

8 Speaker Level Output terminals

(SPEAKER LEVEL OUTPUT)

When the speakers output terminals on the stereo amplifier are connected to this unit’s SPEAKER LEVEL INPUT terminals 9 and used as the unit’s input signal, these terminals are used to connect the left and right speakers via the unit.

L

8

L

9 Speaker Level Input terminals

(SPEAKER LEVEL INPUT)

Connect to the speakers output terminals on the stereo amplifier, with the specially provided speaker cords.

9

SPECIFICATIONS

Cabinet ......................................................... Floor type system

Speaker (Magnetically shielded type) ........... 22 cm cone type

Power Amplifier

Continous Power Output (RMS) ...... 110 W/6 Ω (30 – 200 Hz)

Total Harmonic Distortion ................................................0.5 %

÷

Above specifications are for when power supply is 230 V.

Input (sensitivity at 100 Hz/impedance)

SPEAKER LEVEL .................................... 1.6 V + 1.6 V/15 kΩ

LINE LEVEL (RCA jack) .................................... 160 mV/50 kΩ

14

(30 – 200 Hz, 6 Ω, 27.5 W)

(both channels in-phase)

Turnover Frequency .......... 50 – 200 Hz (continuously variable)

Outline Dimension ............ 250 (W) x 480 (H) x 384 (D) mm

Weight (without package) ................................................. 14 kg

Power Requirements .............. a.c. 220 – 230 Volts~, 50/60 Hz

Power Consumption ...................................................... 65.5 W

Accessories ............................................... Speaker cords x 2

RCA plug cord x 1

Operating instructions x 1

Warranty card x 1

NOTE:

Specifications and design subject to possible modification without notice, due to improvements.