Pioneer SX-315 Service manual

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

AUDIO MULTI-CHANNEL RECEIVER

MASTER VOLUME

DOWN UP

SX-315

ORDER NO.



STANDBY/ON

SOUND

SOUND

MODE OFFENTER TONE

MODE

INPUT SELECTOR

STB DVD/DVR

DIGITAL

–+

STATION CLASS FM/AM TAPE/VCR TV

TUNING

AUTO SURROUND STEREO

–+

SYSTEM

TUNER

PHONES

CHANNEL

SETUP

EDIT

LEVEL

RRV3071

SX-315

AUDIO MULTI-CHANNEL RECEIVER

SX-315

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

Model Type Power Requirement Remarks

SX-315 KUCXCN AC120V

For details, refer to "Important Check Points for Good Servicing" .

1234

SAFETY INFORMATION

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

A

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 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 CodeSection 25249.6 – Proposition 65

B

This product contains mercury. Disposal of this material may be regulated due to evironmental considerations. For disposal or
recycling information, please contact your local authoritier of the Electronice Industries Alliance : www.eiae.org.

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

C

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

D

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.

Leakage
current

E

Device
under
test

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

Test all
exposed metal
surfaces

AC Leakage Test

tester

Reading should
not be above

0.5 mA

Earth
ground

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

F

2

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SX-315

5678

[Important Check Points for Good Servicing]

In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.

1. Product safety

Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.

1 Use specified parts for repair.

Use genuine parts. Be sure to use important parts for safety.

2 Do not perform modifications without proper instructions.

Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.

3 Make sure the soldering of repaired locations is properly performed.

When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)

4 Make sure the screws are tightly fastened.

Please be sure that all screws are fastened, and that there are no loose screws.

5 Make sure each connectors are correctly inserted.

Please be sure that all connectors are inserted, and that there are no imperfect insertion.

6 Make sure the wiring cables are set to their original state.

Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.

7 Make sure screws and soldering scraps do not remain inside the product.

Please check that neither solder debris nor screws remain inside the product.

8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.

Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.

9 There should be no spark traces or similar marks on the power plug.

When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.

0 Safe environment should be secured during servicing.

When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.

A

B

C

D

2. Adjustments

To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.

3. Lubricants, Glues, and Replacement parts

Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.

4. Cleaning

For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.

5. Shipping mode and Shipping screws

To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

56

SX-315

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7

8

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CONTENTS

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

1. SPECIFCATIONS ............................................................................................................................................. 5

2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 8

A

B

C

2.1 PACKING ................................................................................................................................................... 8

2.2 EXTERIOR SECTION.............................................................................................................................. 10

2.3 FRONT PANEL SECTION ....................................................................................................................... 12

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................14

3.1 BLOCK DIAGRAM ................................................................................................................................... 14

3.2 OVERALL WIRING CONNECTION DIAGRAM........................................................................................ 16

3.3 MAIN, PROTECTION and POWER ASSYS ............................................................................................18

3.4 DSP ASSY ............................................................................................................................................... 20

3.5 CNT1, CNT2, FRONT, SW AMP, ST-BY TACT and H/P ASSYS.............................................................. 22

4. PCB CONNECTION DIAGRAM ..................................................................................................................... 24

4.1 MAIN ASSY ............................................................................................................................................. 26

4.2 PROTECTION ASSY............................................................................................................................... 28

4.3 POWER ASSY......................................................................................................................................... 29

4.4 DSP ASSY ............................................................................................................................................... 30

4.5 CNT1 and CNT2 ASSYS ......................................................................................................................... 32

4.6 FRONT, SW AMP, ST-BY TACT and H/P ASSYS .................................................................................... 34

5. PCB PARTS LIST ........................................................................................................................................... 38

6. ADJUSTMENT ............................................................................................................................................... 42

6.1 IDLE ADJUSTMENT................................................................................................................................ 42

7. GENERAL INFORMATION............................................................................................................................. 43

7.1 DIAGNOSIS ............................................................................................................................................. 43

7.1.1 TROUBLE SHOOTING...................................................................................................................... 43

7.1.2 PCB LOCATION ................................................................................................................................ 45

8. PANEL FACILITIES ........................................................................................................................................ 53

8.1 FRONT PANEL SECTION ....................................................................................................................... 53

8.2 DISPLAY .................................................................................................................................................. 54

8.3 REMOTE CONTROL ............................................................................................................................... 55

D

E

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4

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1. SPECIFCATIONS

Specifications

A

Amplifier section

Continuous Power Output
Front

Center . . . . . . . . . . . . 100 W

Surround

. . . . . . . 100 W per channel

Subwoofer . . . . . . . . . . 100 W

RMS Power Output

Front . . . . . . . . . 125W per channel (1kHz, THD 10%, 6 Ω)

Center . . . . . . . . . . . . . . . . . .125W (1kHz, THD 10%, 6 Ω)

Surround . . . . . 125W per channel (1kHz, THD 10%, 6 Ω)

Subwoofer . . . . . . . . . . . . . . 125W (100Hz, THD 10%, 6 Ω)

Music Power Output

Front . . . . . . . 167 W per channel (DIN MUSIC, 10%, 6 Ω)

Center . . . . . . . . . . . . . . . . 167 W (DIN MUSIC, 10%, 6 Ω)

Surround . . . 167 W per channel (DIN MUSIC, 10%, 6 Ω)

Subwoofer . . . . . . . . . . . . . 167 W (DIN MUSIC, 10%, 6 Ω)

* Measured pursuant to the Federal Trade Commission’s
Trade Regulation rule on Power Output Claims for
Amplifiers.
** Measured by audio spectrum analyzer.

100 W per channel

. . .

*

(200 Hz – 20 kHz, 1.0%**, 6 Ω)

*

(200 Hz – 20 kHz, 1.0%**, 6 Ω)

*

(200 Hz – 20 kHz, 1.0%**, 6 Ω)

*

(45 Hz – 200 Hz, 1.0%**, 6 Ω)

FM Tuner Section

Frequency Range . . . . . . . . . . . . . . . 87.5 MHz to 108 MHz

Antenna Input (DIN). . . . . . . . . . . . . . . . . . 75Ω unbalanced

Furnished Parts

AM loop antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Dry cell batteries (AA size IEC R6) . . . . . . . . . . . . . . . . . . 2

Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Warranty card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Operating instructions

Note

• Specifications and the design are subject to possible

modifications without notice, due to improvements.

B

C

AM Tuner Section

Frequency Range

10kHz step . . . . . . . . . . . . . . . . . . . . . 530 kHz to 1,700 kHz

Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna

Miscellaneous

Power requirements . . . . . . . . . . . . . . . . . AC 120 V / 60Hz

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 200W

In standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5W

Dimensions . . . . . . . . . . . . . . 16.5 (W) x 6.2 (H) x 15.7 (D) in.

420 (W) x 158 (H) x 400 (D) mm

Weight (without package) . . . . . . . . . . . . . . . . . . 20 lb 15 oz

9.5 kg

D

E

F

56

SX-315

5

7

8

Accessories

A

1234

• Remote control ×1
(8300740600010)

•

FM wire antenna

STANDBY/ON

MUTE

(ADH7030)

STB

DVD/DVR

VOLUME

–

DIMMER

TUNER

EDIT

+

H LEVEL

•

AM loop antenna

(ATB7013)

SLEEP STATUS

INPUT SELECTOR

DIGITAL

FM/AM TAPE/VCR TV CLASS

B

TUNING STATION

–+

SYSTEM
SETU

+

ENTER

ROOM

SETUP

AUTO

SURROUND

OFF

SOUND TONE

C

BASS

++––

–

TEST

STEREO

MPX

TREBLE

TONE

• Warranty Card

• Operating Instructions

RECEIVER

D

• Dry cell batteries ×2
(AA / IEC R06)

E

F

6

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5678

A

B

C

D

E

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7

8

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2. EXPLODED VIEWS AND PARTS LIST

NOTES:

A

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 product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)

2.1 PACKING

B

C

Packing tape

10

5

6

7

9

Packing tape

4

2

8

3

1

Power cord

12

Packing tape

D

10

E

F

8

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SX-315

11

5678

PACKING parts List

No. Description Part No.

Mark

1 Operating Instructions 5707210180491-IL

(English, French)

NSP 2 Warranty Card 5777200140100-IL

3 FM Antenna Assy ADH7030

4 Loop Antenna Assy ATB7013

5 Remote Control Unit 8300740600010-IL

6 Battery Cover VNK4997

NSP 7 Battery G670001R50190-IL

8Polyethylene Bag (SET) 6330210019000-IL

NSP 9 Polyethylene Bag (accessory) 6337000240010-IL

10 Pad LR 6230211154000-IL

11 Packing Case 6007210700010-IL

12 Polyethylene Bag 6330210059000-IL

A

B

C

D

E

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7

8

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2.2 EXTERIOR SECTION

3

B

15

36

8

37

10

34

35

24

C

42

43

E

37

F

41

28

34

43

1

A

43

22

34

33

17

41

39

37

37

37

37

42

35

41

42

43

37

H

27

26

9

22

43

42

G

37

23

36

37

7

37

27

42

C

14

37

E

D

34

34
34

G

2

35

F

31

D

24

31

40

25

36

D

12

20

36

H

36

36

36

36

36

34

4

37

H

E

5

22

A

33

B

37

C

A

34

13

B

6

24

24

D

11

32

A

F

B

E

Refer to
"2.3 FRONT PANEL SECTION".

F

10

1234

29

21

C

32

37

37

37

19

18

16

NON-CONTACT

SIDE

CONTACT SIDE

SX-315

>

>

>

>

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EXTERIOR SECTION parts List

No. Description Part No.

Mark

1 MAIN Assy 7028063491010-IL

2PROTECTION Assy 7028063504010-IL

3POWER Assy 7028063521010-IL

4 DSP Assy 7028063511010-IL

5 CNT1 Assy 7028063492010-IL

6 CNT2 Assy 7028063502010-IL

7 SW AMP Assy 7028063503010-IL

8 FM/AM TUNER Unit AXX7172

9Posistor F320730100010-IL

10 Power Cord L068040250010-IL

A

11 Power Transformer 8200858630180-IL

12 Flat Card Cable (11P) N712110734810-IL

13 Flat Card Cable (14P) N712141234810-IL

14 Flat Card Cable (20P) N71201834810-IL

15 Bonnet 3000210556000-IL

NSP 16 Chassis 3200211556000-IL

17 Rear Panel 3207211566000-IL

18 Foot 4000000601010-IL

19 Cushion for Foot 4050211175000-IL

NSP 20 Heatsink 2120210778000-IL

21 PCB Spacer 4300210062000-IL

22 Supporter 4070001601010-IL

23 Stopper 4380210002000-IL

24 Clamp (Binder) 4330040343010-IL

25 Heatsink Bracket L 4010210386000-IL

26 Heatsink Bracket R 4010210396000-IL

27 Bracket 4010210186000-IL

>

28 Fuse (8A/125V) REK1086

29 Cushion 4050211205000-IL

30 • • • • •

31 Screw B028940101B10-IL

32 Screw 1500001206010-IL

33 Screw 1500040084B10-IL

34 Screw B020030171B10-IL

35 Screw B018230141H11-IL

B

C

D

36 Screw B020030104B10-IL

37 Screw BBZ30P080FTC

38 • • • •

NSP 39 Steel Wire 1050040016010-IL

NSP 40 Serial BAR-CODE Label 5507030010120-IL

41 Transistor J503947F00000-IL

(Q517,518,525,526,537,Q205)

42 Transistor J5032390Y0000-IL

(Q519,520,528,538,527,Q207)

43 Transistor J5011560Y0000-IL

(Q521,530,539,529,522,Q206)

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2.3 FRONT PANEL SECTION

A

NON-CONTACT

B

C

5

15

SIDE

CONTACT SIDE

4

14

17

14

17

To CNT2
CP302

17

12

17

To CNT1

17

CP301

17

G

17

1

17

17

I

2

9

3

J

11

16

10

11

11

7

D

Nut:
Accessory of

6

FRONT Assy

8

E

13

F

12

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FRONT PANEL SECTION parts List

No. Description Part No.

Mark

1FRONT Assy 7028063501010-IL

2ST-BY TACT Assy 7028063506010-IL

3 H/P Assy 7028063505010-IL

4Front Panel 3067212041000-IL

5 Pioneer Badge VAM1129

6 Spring 3720210276000-IL

7 Window 5070212073000-IL

8 Knob 5087211121000-IL

9 SB Button 5097212581000-IL

10 FUNC Button 5097212591000-IL

A

11 SU Button 5097212601000-IL

12 SL Button 5097212611000-IL

13 Cushion for Foot 4050211175000-IL

14 Bracket L/R 4010211986000-IL

NSP 15 Energy Star Label AAX8022

16 Screw 1500001456010-IL

17 Screw BBZ30P080FTC

B

C

D

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13

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8

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3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

B

C

D

E

F

14

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A

B

7809

C

D

E

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7

8

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3.2 OVERALL WIRING CONNECTION DIAGRAM

÷

When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or

A

"PCB 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.

÷

: The power supply is shown with the marked box.

C

POWER ASSY

POWER CORD

(L068040250010-IL)

B

(7028063521010-IL)

B

PROTECTION ASSY
(7028063504010-IL)

C

D

POWER TRANSFORMER
(8200858630180-IL)

E

I

ST-BY TACT ASSY
(7028063506010-IL)

J

H/P ASSY
(7028063505010-IL)

F

16

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A

MAIN ASSY
(7028063491010-IL)

H

SW AMP ASSY
(7028063503010-IL)

D

DSP ASSY
(7028063511010-IL)

FM/AM TUNER UNIT

(AXX7172)

A

B

C

CNT2 ASSY

F

(7028063502010-IL)

E

CNT1 ASSY
(7028063492010-IL)

D

E

G

FRONT ASSY
(7028063501010-IL)

SX-315

56

F

17

7

8