Dolby Laboratories 31-3043, STAV-3770 User Manual

MODEL STAV-3770/HTS-102(STAV-3770)

AUDIO/VIDEO RECEIVER

Catalog Number: 31-3042
31-3043

¶ The service manual for this product inc ludes Pioneer's RRV1925 VSX-D307/KUXJI service manual.

The pages preceding that manual list additional specifications, all service changes between
Pioneer's RRV1925 VSX-D307/KUXJI and the 31-3042 ST AV-3770/31-3043 HTS-102 (STAV-3770), and
any RadioShack part numbers that are different from the Pioneer part numbers.

31-3042/31-3043

¶ The specifications on Page 49 of the RRV1925 service manual for Pioneer's model VSX-D307/

KUXJI are like the specifications listed in the owner's manual for the 31-3042 STAV-3770/31-3043
HTS-102 (STAV-3770). Additional specs are given on the page inside the back cover.

¶ HOME THEATER SYSTEM Model HTS-102 contains AUDIO/VIDEO RECEIVER HTS-102 (STAV-3770)

and 6 speakers (2 front speakers, 1 center speaker, 2 rear speakers and 1 passive subwoofer).
The parts for the speakers are listed on page 3.

1998 Tandy Corporation.

©

All Rights Reserved.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

PART NUMBER DIFFERENCES BETWEEN 31-3042 STAV-3770/
31-3043 HTS-102(STAV-3770) AND VSX-D307/KUXJI

NOTES : ÷ Parts marked by “ NSP ” are generally unavailable .

indicates safety critical components. Be sure to replace only with specified parts.

÷
÷ Ref. No. : Numbers following P and hyphen(–) indicate the page(s) and location number(s) in the RRV1925 service manual,

respectively.

31-3042 STAV-3770/31-3043 HTS-102(STAV-3770) and VSX-D307/KUXJI are constructed the same except for
the following:

Part No.

Ref.

Mark

No.

P3 - 3 Operating Instructions (English) ARB7136 ARB7149 ARB7149
P3 - 4 NSP Warranty Card ARY1051 Not used Not used
P3 - 5 Remote Control Unit (CU-VSX124) AXD7161 Not used Not used
P3 - 5 Remote Control Unit Not used AXD7176 AXD7176
P3 - 7 NSP Dry Cell Battery (R6P, AA) VEM-013 Not used Not used

P3 - 11 Packing Case AHD7557 AHD7592 AHD7634

Symbol and Description

PACKING

VSX-D307 31-3042 31-3043

/KUXJI STAV-3770 HTS-102

Remarks

EXTERIOR SECTION

P5 - 17 Rear Panel ANC7627 ANC7662 ANC7702

FRONT PANEL SECTION

P6 - 5 Power Button AAD7440 AAD7472 AAD7472
P6 - 7 PIONEER Badge PAM1755 Not used Not used
P6 - 7 OPTIMUS Badge Not used AAM7001 AAM7001
P6 - 9 Sheet AAK7539 Not used Not used
P6 - 9 FL Panel Not used AAK7560 AAK7560

Front Panel Assy Not used AMB7511 AMB7511
P6 - 6 Function Button (1/2) AAD7441 AAD7458 AAD7458
P6 - 6 Function Button (2/2) AAD7441 AAD7441 AAD7441

P6 - 10 Sub Panel AAP7040 AAP7045 AAP7045
P6 - 11 Front Panel AMB7494 Not used Not used
P6 - 11 NSP Front Panel Not used AMB7505 AMB7505

SPEAKER

Front Speaker Not used Not used ∗1

Center and Rear Speaker Not used Not used ∗1

Passive Subwoofer Not used Not used ∗1

ACCESSORY

RCA Cable Accesory Assy Not used Not used 259029

∗1: Refer to "31-3043 HTS-102 SPEAKERS".

Note

2

31-3043 HTS-102 SPEAKERS

7 FRONT SPEAKER PARTS LIST

Mark No. Description Part No.

1 Speaker Wire Set (16' 18ga) 258224

for Front Speaker

2 Cabinet W/Speaker 258997

(Front Speaker)

7 CENTER AND REAR SPEAKER PARTS LIST

Mark No. Description Part No.

1 Speaker Wire Set (8' 18ga) 258284

for Center and Rear Speaker

2 Cabinet W/Speaker 259009

(Center Speaker)

3 Cabinet W/Speaker 259014

(Rear Speaker)

7 PASSIVE SUBWOOFER PARTS LIST

Mark No. Description Part No.

1 Speaker Wire Set (10' 18ga) 242393

for Subwoofer

2 Low Freq. Transducer 20-207A/XL

(8-inch cone woofer unit)

3 SCR PPD0008PO4/4FBO 2221904

(Woofer)

4 Logo Badge 258922
5 Front Port Ring 258635
6 Rear Port Ring 258640
7 Paper Port Tube 255136
8 Foot W/Non Skid Pad 250111

9 SCR PPD0008PO5/4FBO 222539

(Foot)
10 Terminal with Network 255121
11 SCR PPD000605/8FBO 222539

(Terminal)

< 31-3043 >

3

4

AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-D307

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

Type

KUXJ AC120V
KUXJI AC120V
KCXJI AC120V

Model

VSX-D307

Power Requirement Remarks

ORDER NO.

RRV1925

CONTENTS

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

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

3. SCHEMATIC DIAGRAM ....................................... 8

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

5. PCB PARTS LIST ............................................... 30

6. ADJUSTMENT .................................................... 35

PIONEER ELECTRONIC 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 ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923

c

PIONEER ELECTRONIC CORPORATION 1998

7. GENERAL INFORMATION ................................ 36

7.1 PARTS ......................................................... 36

7.1.1 IC .......................................................... 36

7.1.2 DISPLAY............................................... 38

7.2 DISASSEMBLY ........................................... 39

7.3 DIAGNOSIS................................................. 41

7.4 BLOCK DIAGRAM....................................... 42

8. PANEL FACILITIES AND SPECIFICATIONS.. 44

T - IZM MAR. 1998 Printed in Japan

VSX-D307

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
Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may
cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.

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 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)

Leakage
current
tester

Test all
exposed metal
surfaces

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.

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.

•

VSX-D307

2.1 PACKING

(1) PACKING PARTS LIST

1

12

2

4

3

8 (1/2)

5

10

8 (2/2)

9 (2/2)

6

7

9 (1/2)

11

(2) CONTRAST TABLE

VSX-D307/KUXJ, KUXJI and KCXJI are constructed the same except for the following :

Mark No. Symbol and Description

3 Operating Instructions (English) ARB7136 ARB7136 Not used
3 Operating Instructions (English/French) Not used Not used ARE7159

NSP 4 Warranty Card ARY1051 ARY1051 ARY1075

11 Packing Case AHD7595 AHD7557 AHD7582

Mark No. Description Part No.

1 FM Antenna ADH7004
2 AM Loop Antenna ATB7009
3 Operating Instructions See Contrast table (2)

NSP 4 Warranty Card See Contrast table (2)

5 Remote Control Unit AXD7161

(CU-VSX124)

6 Battery Cover RZN1156

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

8 Left Pad AHA7203
9 Right Pad AHA7204

10 Packing Sheet AHG1218
11 Packing Case See Contrast table (2)

12 Polyethylene Bag Z21-038

(0.03×230×340)

Part No.

VSX-D307/KUXJ VSX-D307/KUXJI VSX-D307/KCXJI

Remarks

Accessories

SOURCE
SELECT

CHANNEL
STATION

STANDBY/ON

CD

TV FUNC.

TV VOL.

TAPE

BAND

FREQ.

TUNER MPX

CLASS

D.ACCESS

DVD

123

TEST

REAR

TONE

LD

LEVEL

456

CENTER

CENTER

TV

LEVEL

MODE

CONTROL

789

CD DISC

DELAY

RECEIVER
STANDBY/ON

VIRTUAL

PRO LOGIC

EFFECT

TIME

0

DSP MODE

MUTING

LOUD.

MASTER
VOLUME

DIRECTFUNC.

SURROUND

AV MULTI-CHANNEL RECEIVER
REMOTE CONTROL UNIT

Remote Control Unit
(CU-VSX124 : AXD7161)

FM Antenna : ADH7004

AM Loop Antenna : ATB7009

Dry Cell Battery : VEM-013
(size “AA” IEC R6P) × 2

3

VSX-D307

2.2 EXTERIOR SECTION

34

18

34

34

3

34

KCXJI Type

32

Only

34

34

D

34

34

34

36

5

6

34

34

20

1

E

34

17

14 13

34

35

34

20

28

D

10

A

C

26

34

B

19

34

27

B

A

34

F

24

22

E

23

34

24

34

34

11

12

F

7

Accessory of
Front Panel

8

34

34

34

34

34

34

15

34

4

C

34

Refer to
"2.3 FRONT PANEL SECTION".

33

4

34

34

27

34

29

9

G

16

30
25

21

G

2

34

(1) EXTERIOR SECTION PARTS LIST

VSX-D307

Mark No. Description Part No.

1 MOTHER Assy See Contrast table (2)
2 VOLUME DSP Assy AWX7064

NSP 3 CONNECTION Assy See Contrast table (2)

4 HEADPHONE Assy AWX7066

NSP 5 TRANS 1 Assy AWX7070
NSP 6 TRANS 2 Assy AWX7071

7 PRIMARY Assy AWX7067
8 FRONT SPEAKER Assy AWX7068
9 FM/AM TUNER Unit AXX7046

10 Power Transformer ATS7205

(T1 : AC120V)

11 Fuse (FU2 : 8A) REK1086
12 Fuse (FU1 : 10A) REK1087
13 AC Power Cord PDG1057

14 Cord Stopper CM-22C
15 Flexible Cable 13P (J32) ADD7081

(MOTHER CN110-FM/AM TUNER Unit)

NSP 16 Under Base ANA7067

17 Rear Panel See Contrast table (2)
18 Bonnet Case AZN7710
19 T Angle ANG7178
20 H Angle ANG7179

Mark No. Description Part No.

21 PCB Angle ANG7180
22 FET Angle ANG7186

NSP 23 Heat Sink ANH7075

24 PCB Support AEC7006
25 Push Rivet AEC7025

26 PCB Support AEC7132
27 Card Spacer AEC7133
28 Mica Sheet AEE7026
29 Screw Cover AMR7199
30 Foot Assy REC1263

31 • • • • •

32 Fuse (FU91 : 10A) See Contrast table (2)

33 Round Knob AAB7082
34 Screw BBZ30P080FZK
35 Screw ABA7044

36 Screw ABA7043

(2) CONTRAST TABLE

VSX-D307/KUXJ, KUXJI and KCXJI are constructed the same except for the following :

Mark No. Symbol and Description

1 MOTHER Assy AWX7058 AWX7058 AWX7177

NSP 3 CONNECTION Assy AWX7060 AWX7060 AWX7176

17 Rear Panel ANC7663 ANC7627 ANC7691
32 Fuse (FU91 : 10A) Not used Not used REK1087

VSX-D307/KUXJ VSX-D307/KUXJI VSX-D307/KCXJI

Part No.

Remarks

5

VSX-D307

2.3 FRONT PANEL SECTION

12

5

11

8

6 (2/2)

7

10

9

6 (1/2)

12

12

3

2

12

1

4

(1) FRONT PANEL SECTION PARTS LIST

Mark No. Description Part No.

1 FRONT Assy AWX7062
2 Flexible Cable 20P (J31) ADD7083

(MOTHER CN109-FRONT CN501)

3 Flexible Cable 20P (J35) ADD7083

(MOTHER CN111-FRONT CN502)

NSP 4 Getter AAX7631

5 Power Button AAD7440
6 Function Button AAD7441
7 PIONNER Badge PAM1755
8 LED Lens PNW2019

9 Sheet AAK7539
10 Sub Panel AAP7040
11 Front Panel AMB7494
12 Screw BPZ30P080FMC

6

VSX-D307

7

1

23

4

VSX-D307

3. SCHEMATIC DIAGRAM

3.1 OVERALL CONNECTION DIAGRAM

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

A

FM/AM
TUNER UNIT
(AXX7046)

B

E

E

1/2E2/2

,

VOLUME DSP ASSY
(AWX7064)

A

A

1/3

A

3/3

MOTHER ASSY
(AWX7058 : KUXJ,KUXJI)
(AWX7177 : KCXJI)

C

FRONT SPEAKER ASSY

F

(AWX7068)

D

8

1234

5

678

VSX-D307

A

D

FRONT ASSY
(AWX7062)

G

B

CONNECTION ASSY
(AWX7060:KUXJ,KUXJI)
(AWX7176:KCXJI)

!

T1

POWER

TRANSFORMER

ATS7205

HEADPHONE ASSY
(AWX7066)

TRANS 2 ASSY

C

(AWX7071)

TRANS 1 ASSY

I

(AWX7070)

B

C

PRIMARY ASSY

H

(AWX7067)

D

!

AC120V

60Hz

AC POWER CORD

PDG1057

9

5

6

7

8

1

VSX-D307

3.2 MOTHER ASSY (1/3)

23

4

A

A

MOTHER ASSY

1/3

(AWX7058:KUXJ,KUXJI)

IC151:
PHONO RIAA AMP

(AWX7177:KCXJI)

B

IC101:

CN102(1/2)
AKB7015

FUNCTION
SW

CN102(2/2)

IC102:
BUFFER AMP

C

D

10

: AUDIO SIGNAL ROUTE

(C)

: AUDIO SIGNAL ROUTE (CENTER)

(S)

: AUDIO SIGNAL ROUTE (SURROUND)

1/3

A

1234

5

678

VSX-D307

A

CN201

E

1/2

E

1/2

CN202

(C)

(S)

A

2/3

B

A

2/3

CN501

D

MTZJ5.1B

Q191:
RIPPLE
FILTER
FOR TUNER

TO FM/AM TUNER UNIT

1/50

A

3/3

A

2/3

C

A

2/3

CN502

D

A

3/3

D

1/3

A

5

6

7

8

11

1

VSX-D307

3.3 MOTHER ASSY (2/3)

A

A

1/3

A

1/3

(C)

A

23

MOTHER ASSY

2/3

(AWX7058:KUXJ,KUXJI)
(AWX7177:KCXJI)

(C)

!
IC401(2/2)
PAC007A

2SC2705

4

A

1/3

(C)

A

3/3

(C)

A

1/3

!

B

!

A

1/3

C

CAUTION : FOR CONTINUED PROTECTION AGAINST
RISK OF FIRE. REPLACE ONLY WITH
SAME TYPE NO. ICP-N25, MFD BY ROHM
CO., LTD. FOR IC403.

!

!

!
IC401(1/2)
PAC007A

!

2SC2705

!

A

3/3

!

!

A

1/3

A

1/3

V CONT B

V MUTE

V CONT A

D

12

V MUTE

V CONT B

F

2/3

A

1234

V CONT A

J25

VIDEO G

F

J24

5

678

VSX-D307

A

(C) (C)

!

A

1/3

!
IC402(1/2)
PAC007A

!

!

2SC2705

!

2SC2705

!

!

(C)

A

3/3

B

(C)

!

A

3/3

!

A

1/3

(S)

(S)

IC402(2/2)
PAC007A

(S)

!

(S)

C

(C)

(C)

A

1/3

: AUDIO SIGNAL ROUTE

(C)

: AUDIO SIGNAL ROUTE (CENTER)

(S)

: AUDIO SIGNAL ROUTE (SURROUND)

(S)

(C)

(S)

(S)

(S)

D

2/3

A

5

6

7

8

13