Pioneer VSXC-300 Service manual

STANDBY

OFF ON

PHONES VIDEO AUDIO DIGITAL IN

FRONT INPUT

LR

INPUT SIGNAL



DIGITAL

MULTI ch

2

DIGITAL2PROLOGIC DTS VIRTUAL

PHONES

SURR

STEREO

DVD TV/SAT VCR FRONTTUNER

AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C300

DOWN UP

MASTER VOLUME

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-C300

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

Model

VSX-C300

KUXJI/CA

AC120V

RemarksPower RequirementType

ORDER NO.

RRV2524

CONTENTS

1. SAFETY INFORMATION

2. EXPLODED VIEWS AND PARTS LIST

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

4. PCB CONNECTION DIAGRAM

5. PCB PARTS LIST

6. ADJUSTMENT

...............................................

....................................................

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

c

PIONEER CORPORATION 2001

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32 46 50

2 3 8

7. GENERAL INFORMATION

7.1 DIAGNOSIS

..................................................

7.1.1 Test Mode

7.1.2 Protection of the Amplifier Line

7.1.3 Operation of the Fan-Control Line

7.1.4 Specifications of Speaker Detection

7.1.5 Timing Chart

7.2 PARTS

7.2.1 IC

7.2.2 DISPLAY

..........................................................

............................................................

.................................................

8. PANEL FACILITIES AND SPECIFICATIONS

................................

................................................

...............

...........

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T – ZZR SEPT. 2001 Printed in Japan

51 51 51 52 53 54 55 56 56 62 64

VSX-C300

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. 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.

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.

Health & Safety Code Section 25249.6 – Proposition 65

(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 60Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5mA.

Reading should not be above

0.5mA

Earth ground

Device under test

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

Test all exposed metal surfaces

Leakage current tester

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 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 on the parts list

AC Leakage Test

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.

2.1 PACKING

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.

•

1

2

VSX-C300

13

3

4

5

8

10

9

7

12

6

14

÷ PACKING PARTS LIST

Mark No. Description Part No.

1 FM Wire Antenna ADH7004 2 AM Loop Antenna ATB7009

NSP 3 Polyethylene Bag Z21-038

(0.03 × 230 × 340)

NSP 4 Warranty Card ARY7045

5 Remote Control Unit AXD7310 6 Battery Cover AZA7378

NSP 7 Dry Cell Battery (R6P, AA) VEM-013

8 Left Pad AHA7349 9 Right Pad AHA7350

10 Packing Sheet AHG7015 11 Packing Case AHD8010

12 Operating Instructions ARB7248

(English)

11

Mark No. Description Part No.

13 AC Power Cord ADG7022 14 Cable Label ARW7145

3

VSX-C300

2.2 EXTERIOR SECTION

25

38

53

17

36

G

43

B

36

43

L

39

8

M

46

36

G

F

39

10

B

15

C

6

A

36

45

54

53

14

C

11

3

33

F

43

J

A

50

16

33

36

26

51

45

E

36

I

36

7

36

D

5

19

A

42

44

4

36

13

28

48

47

36

24

29

H

27

E

22

12

36

29

I

C

2

37

52

38

H

36

D

36

B

36

41

34

1

40

Refer to "2.3 FRONT PANEL SECTION".

4

30

36

45

49

D

E

22

36

21

31

36

23

32

20

18

VSX-C300

÷ EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

1 DSP ASSY AWX7937 2 2P - JACK ASSY AWX7926 3 POWER ASSY AWX7910 4 VIDEO ASSY AWX7928 5 OPT - IN ASSY AWX7908

31 Rubber Cushion AEB7235 32 Insulator 50 Assy AMR7379 33 Screw With Washer ABA7080 34 PCB Mold AMR2534 35 • • • • •

6 TRANS 2 Assy AWX7907 7 FM/AM TUNER MODULE AXQ7231

NSP 8 TRANS 1 Assy AWX7906

9 • • • • •

10 Power Transformer (AC120V) ATS7317 11 Fuse (FU1 : 2.5A) REK1112

12 FFC (J804 : 13P/180 BD 60V) ADD7242

(DSP CN803 ↔ TUNER CN201)

13 FFC (J1702 : 23P/180 BD 60V) ADD7293

(DSP CN1702 ↔ FRONT CN4202)

14 FFC (J4201 : 23P/200 BD 60V) ADD7293

(POWER CN303 ↔ FRONT CN4201)

15 FFC (J4101 : 11P/100 BD 60V) ADD7336

(POWER CN304 ↔ FRONT INPUT CN4101)

16 Thermistor AEX7004

(POWER CN306 ↔ TH9014)

17 Trans Shield Barrier AEC7380 18 REG. Cover AEC7384

19 Tuner Barrier AEC7383

20 Leg Assy REC-434 21 Insulator 50 AMR7363

22 FFC (J803 : 7P/150 BD 60V) ADD7292 (DSP CN804 ↔ FRONT CN203) NSP 23 Under Base ANA7129

24 Rear Panel ANC8017

25 Bonnet Case S (Box) AZN7886

36 Screw BBZ30P080FZK 37 Screw BBZ30P140FMC 38 Screw BBZ40P080FNI 39 Screw BBZ40P060FCC 40 Front Panel Assy AMB7778

41 Dolby DTS. Label ARW7136 42 Speaker Label E AAX7870 43 Binder ZCA–BK1 44 Screw (3x11.5) ABA7071 45 Screw BBZ30P080FNI

46 Cord Clamper RNH-184 47 Cushion H11 AEB7239 48 Damper Cushion AED7055 49 Cushion Circle 16S AED7054 50 Fuse Card AAX2344

51 65 Label ARW7050 52 Caution Label ARW7143 53 Rubber Cushion AEB7235 54 Support PCB ANZ7133

26 PCB Support AEC7365

27 DC Fan Motor AXM7017 NSP 28 Heat Sink HL ANH7144

29 Damper BK AEB7231 NSP 30 Trans Stabilizer ANG7362

5

VSX-C300

2.3 FRONT PANEL SECTION

16

2

K

13

10

F

17

20

16

4

16

H

5

16

1

15

11

9

18

8

24

G

23

7

16

3

I

6

22

25

14

21

12

6

÷ FRONT PANEL SECTION PARTS LIST

Mark No. Description Part No.

1 FRONT ASSY AWX7933 2 POWER SW ASSY AWX7904 3 ENCODER ASSY AWX7914

NSP 4 LED ASSY AWX7913

5 FRONT INPUT ASSY AWX7916 6 Front Panel Assy AMB7778

7 Function Button AAD7633 8 FFC (J1702 : 23P ADD7293

Front CN4202 ÔDSP CN1702)

9 Name Plate VAM1129

10 Standby Lens AAK7902

11 LED Lens AAK7903

12 Volume Knob P Assy AAB7239

13 Power Button AAD7630

14 Volume Cap AAC7032

15 FFC (J4201 : 23P ADD7293

Front CN4201ÔPower CN303)

VSX-C300

16 Screw BPZ30P080FMC

17 Screw (FE) ABA7009

18 Display Panel AAK7904

19 • • • •

20 FFC (J4101 : 11P ADD7336

Front input CN4101ÔPower CN304)

21 Volume Mold AAC7033

22 Front Panel AMB7776

23 FFC (J803 : 7P ADD7292

Front CN4203ÔDSP CN804) 24 Energy Star Label AAX7876 25 Ring ABH7213

7

1

23

VSX-C300

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

FM/AM TUNER

A

MODULE

BN201

CN4101

7

IC701

TC9164AF

CN1501

CN304

AUDIO FUNCTION

SELECTOR

CN301

IC702

UPC4570G2

IC703

NJM2100M

DSP ASSY

B

CN201 CN803

B

FRONT INPUT

F

ASSY (1/3)

IC802

AK4527BVQ

CODEC

4

IC1301-IC1303

NJM4558MD

LPF & 6dB AMP.

2P JACK

C

ASSY

CN2201 CN701

CN901 CN801

C

FRONT INPUT

F

ASSY (2/3)

POWER

J

ASSY (2/3)

POWER

J

ASSY (1/3)

11

OPT-IN ASSY

D

ROM for DECODE

VIDEO FUNCTION

IC801

AK4112AVF

DIR & A/D SELECTOR

IC1104

PDN031D

IC3201

NJM2296M

SELECTOR

IC1106

CS493292

DSP for DECODE

TC74VHC574F

8 → 16 bit

CONVERTER

VIDEO ASSY

E

IC1101

IC1102

IC1202

TC74VHCT244AFT

3 → 5V

CONVERTER

IC1201

AK7706VT

DSP for DELAY

IC1203

TC551001CFT-70

RAM for DELAY

D

8

1234

IC1401

TC9164AF

SP Config.

5

IC1306, IC1402-IC1405

NJM4558MD

MIX AMP. LPF

678

VSX-C300

A

FRONT INPUT

F

ASSY (3/3)

PHONES

IC1502-IC1504

UPC4570G2

PRE-AMP.

B

POWER ASSY (3/3)

J

IC1501

M62446FP

ELECTRIC VOLUME

C

D

9

5

6

7

8

1

VSX-C300

3.2 OVERALL WIRING DIAGRAM

A

POWER CORD KUXJI/CA : ADG7022

: AKP7032

23

DC FAN MOTOR : AXM7017

4

B

M

POWER TRANSFORMER

L

TRANS 2

C

ASSY (AWX7907)

TRANS 1 ASSY (AWX7906)

T1

: ATS7317

J

J 1/2, J 2/2

POWER ASSY (AWX7910)

H

LED ASSY (AWX7913)

D

SW ASSY

K

(AWX7904)

FRONT INPUT

F

ASSY (AWX7916)

G

FRONT ASSY (AWX7933)

10

1234

5

678

VSX-C300

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

TH9014 THERMISTOR : AEX7004

VIDEO ASSY

E

(AWX7928)

B

B 1/5- B 5/5

DSP ASSY (AWX7937)

CN201

FM/AM TUNER MODULE

A

(AXQ7231)

OPT-IN ASSY

D

(AWX7908)

SUPPORT

A

B

ASSY

2P JACK ASSY

C

(AWX7926)

ENCODER

I

ASSY (AWX7914)

C

D

11

5

6

7

8

1

VSX-C300

3.3 FM/AM TUNER MODULE

A

FM/AM TUNER UNIT MODULE (AXQ7231)

A

FM FRONT END

B

23

(FM)

4

(FM)

(FM) (FM)

(AM) (AM)

MW RF TUNING BLOCK

(AM)

(FM)

C

(AM)

OSC : 980 - 2150kHz 10k step

(FM) (FM)

(AM)

D

12

A

1234

5

678

VSX-C300

(FM)

(AM)

ATF7026

(AM)

AM/FM IF+MPX IC

(FM)

(AM)

L201

(AM)

(FM)

(AM)

(TX)

(FM)

: The power supply is shown with the marked box.

(TX)

: AUDIO SIGNAL ROUTE (TUNER)

(AM)

: AM SIGNAL ROUTE

(FM)

: FM SIGNAL ROUTE

(TX)

A

B

CN803

1/5

B

PLL IC

ATE7003

C

D

A

5

6

7

8

13

1

23

VSX-C300

3.4 DSP (1/5) and 2P JACK ASSYS

4

A

B

B 1/5

B

DSP ASSY (AWX7937)

Audio Function

Selector

4/5

E

CN3201

(TX)

C

2P JACK ASSY (AWX7926)

C

B

4/5

B

5/5

D

(D) (D)

D

CN901

(D)

14

1/5

B

1234

C

(TX)

5

678

VSX-C300

: AUDIO SIGNAL ROUTE

CN201

A

B

4/5

(TX)

: AUDIO SIGNAL ROUTE (Tuner)

(D)

: AUDIO SIGNAL ROUTE (Digital)

(FL)

: AUDIO SIGNAL ROUTE (Front L ch)

(RL)

: AUDIO SIGNAL ROUTE (Rear L ch)

(SW)

: AUDIO SIGNAL ROUTE (Sub Woofer)

(C)

: AUDIO SIGNAL ROUTE (Center)

A

B

CN4203

G

DIR & A/D Selector

(RL)

(SW)

(C)

(FL)

B

CODEC

(FL)

1/5

8

B

15

(RL)

(SW)

(C)

B

2/5

B

5

6

7

C

5/5

3/5

D

1

VSX-C300

3.5 DSP ASSY (2/5)

A

23

4

B 2/5

B

DSP ASSY (AWX7937)

DSP for

DECODE

ROM for

DECODE

C

D

16

2/5

B

1234

5

678

VSX-C300

DSP for Delay

: AUDIO SIGNAL ROUTE

RAM for Delay

A

B

3V → 5V Converter

B

1/5

C

B

5/5

D

2/5

B

5

6

7

8

17

1

VSX-C300

3.6 DSP ASSY (3/5)

A

23

4

B 3/5

(FL)

(RL)

B

1/5

B

(C)

(SW)

(RL)

(FL)

(RL)

DSP ASSY (AWX7937)

(FL) (FL)

(FL)

(RL)

SP Config.

C

(C)

(SW)

D

18

3/5

B

1234

(C) (C)

(SW)

B

1/5

(RL) (RL)

(SW)

B

5/5

(C)

(SW)

5

678

VSX-C300

(FL)

(RL)

(FL)

(RL)

(FL)

: AUDIO SIGNAL ROUTE (Front L ch)

(RL)

: AUDIO SIGNAL ROUTE (Rear L ch)

(SW)

: AUDIO SIGNAL ROUTE (Sub Woofer)

(C)

: AUDIO SIGNAL ROUTE (Center)

(FL)

(RL)

(FL)

(RL)

(SW)

(C)

A

B

4/5

(RL)

(SW)

(C)

(RL)

(SW)

(C)

C

(C) (C)

(SW)

D

3/5

B

5

6

7

8

19

1

VSX-C300

3.7 DSP ASSY (4/5)

A

23

4

B 4/5

B

1/5

(FL)

(RL)

B

3/5

(C)

(SW)

DSP ASSY (AWX7937)

(FL)

(C)

(RL)

(SW)

(FL)

(C)

(RL)

(SW)

(FL)

(C)

(RL)

(SW)

(FL)(FL)

(RL)

(FL)

(RL)

(C)

C

D

Electric Volume

(C)

(SW)

B

5/5

20

4/5

B

1234

5

678

VSX-C300

(FL) (FL)

(RL) (RL)

(RL)

(FL)

: VIDEO SIGNAL ROUTE : AUDIO SIGNAL ROUTE

(FL)

: AUDIO SIGNAL ROUTE (Front L ch)

(RL)

: AUDIO SIGNAL ROUTE (Rear L ch)

(SW)

: AUDIO SIGNAL ROUTE (Sub Woofer)

(C)

: AUDIO SIGNAL ROUTE (Center)

(SW)

(FL)

(RL)

(C)

A

B

J 1/2

CN301

(C) (C)

(SW) (SW)

(C)

(SW) (SW)

(C)

(SW)

B

1/5

C

B

5/5

D

4/5

B

5

6

7

8

21