PIONEER AVX-505 Service Manual

AV SYSTEM MONITOR

AVX-505 UC

vic

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 Wheelock Place, Singapore 23880

C PIONEER ELECTRONIC CORPORATION 1998

ORDER NO.

CRT2192

CONTENTS

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

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

3. SCHEMATIC DIAGRAM ...........................................10

4. PCB CONNECTION DIAGRAM ................................30

5. ELECTRICAL PARTS LIST ........................................42

6. ADJUSTMENT..........................................................49

7. GENERAL INFORMATION .......................................50

7.1 IC ........................................................................50

7.2 DIAGNOSIS ........................................................51

7.2.1 DISASSEMBLY...........................................51

7.2.2 TROUBLESHOOTING FOR

LCD 5.5 MONITOR ....................................58

7.3 EXPLANATION...................................................68

7.3.1 MECHANISM DESCRIPTIONS..................68

7.3.2 BLOCK DIAGRAM......................................70

8. OPERATIONS AND SPECIFICATIONS.....................71

K-FED. APR. 1998 Printed in Japan

- Precautions on Safety for Replacement of Backlight

• High voltage is generated in the inverter when the power is supplied to the system. To avoid an electric

shock, reconfirm that the power switch is set to OFF before starting operation.

• The fluorescent tube and high-voltage parts have high temperature immediately after the power

switch of the main unit is set to OFF. To avoid burning your hand or similar accidents, wait awhile after

turning the power to OFF, then start operation.

• High voltage may be charged to the inverter immediately after the power switch of the main unit is set

to OFF. Wait awhile after turning the power to OFF, then start operation.

• In some cases, the cold cathode tube of backlight may be damaged. Take adequate caution for injury

during operation.

AVX-505

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

CAUTION

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.

ARNING

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 and 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.

1. SAFETY INFORMATION

AVX-505

NOTE:

- Parts marked by “*”are generally unavailable because they are not in our Master Spare Parts List.

- Screws adjacent to ∇ mark on the product are used for disassembly.

- Owner's Manual

Model Part No. Language AVX-505/UC CRD2679 English, French

1 Cord Assy CDE5626 2 Cord Assy CDE5716 3 Accessory Assy CEA2467 4 Polyethylene Bag CEG1173 5 Polyethylene Bag CEG1116

6 Carton CHG3507 7 Contain Box CHL3507 8 Protector CHP2040 9 Protector CHP2041

* 10 Card ARY1048

* 11 Warranty Card Not used

12 Owner’s Manual CRD2679

- PACKING SECTION PARTS LIST

Mark No. Description Part No.

AVX-505

1 Accessory Assy CEA2467 2 Spring CBH-865 3 Screw Assy CEA2465 4 Screw BMZ50P060FMC 5 Screw CBA-102

6 Screw CBA1002

* 7 Polyethylene Bag CEG-127

8 Screw CMZ50P060FMC 9 Nut NF50FMC

* 10 Polyethylene Bag CEG-158

11 Handle CNC5395 12 Strap CNF-111 13 Bush CNV1009

- ACCESSORY ASSY PARTS LIST

Mark No. Description Part No.

2.2 ACCESSORY ASSY

AVX-505

2.3 LCD 5.5 MONITOR

1 LCD 5.5 Monitor CWX2010 2 Rear Frame CZN3087 3 Screw PPZ20P040FMC 4 PCB Unit CZW3050 5 Sheet CZM3006

6 Side Frame CZN3008 7 Back Light Assy CZW3051

- LCD 5.5 MONITOR PARTS LIST

Mark No. Description Part No.

AVX-505

2.4 EXTERIOR (1)

AVX-505

1 Screw IMS20P040FZK 2 Spring CBH-865 3 Grille Unit CXB2376 4 Screw CBA1002 5 Handle CNC5395

6 Bush CNV1009 7 Case CNB2065 8 Sheet CNM5051 9 Holder CNC6798

10 Insulator CNM5743

11 PCB CNP4457 12 Panel CNS4975 13 Detach Grille Assy CXB2541 14 Screw BPZ20P080FZK 15 •••••

16 Screw CBA1378 17 Connector(CN900) CKS2733 18 Sub Grille CNS4900 19 Volume(VR951,952) CCW1019 20 PCB CNP5119

21 LCD Assy CXB2539 22 Screw BPZ20P080FZK 23 Grille Assy CXB2377 24 LCD 5.5 Monitor CWX2010 25 Rail CNS4010

26 Rail CNS4011 27 Keyboard Unit CWM5896 28 Screw BPZ20P080FMC 29 Button CAC5180 30 Screw CBA1215

31 Spring CBH2099 32 Spring CBH2100 33 Spring CBH2107 34 Connector CKS2780 35 Holder CNC7643

36 Holder CNC7644 37 Holder CNC7645 38 Sheet CNM5032 39 PCB CNP5168 40 Arm CNV5311

41 Arm CNV5312 42 Arm CNV5313 43 Panel Unit CXB2378 44 Cover CNS4898 45 Spring CBH2101

46 Screw BPZ20P100FZK 47 Button CAC5547 48 Button CAC5548 49 Button CAC5549

- EXTERIOR SECTION (1) PARTS LIST

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

AVX-505

2.5 EXTERIOR (2)

AVX-505

1 Cord Assy CDE5626 2 Resistor RS1/2PMF102J 3 Cap CNS1472 4 Cord Assy CDE5716 5 Drive Mechanism Unit CXB2537

6 Screw BMZ20P020FMC 7 Screw CBA1077 8 Screw CBA1371 9 Screw CBA1373

10 Screw CBA1376

11 Screw CBA1378 12 Screw CBA1385 13 Washer CBF1038 14 Washer CBF1039 15 Spring CBH1922

16 Spring CBL1256 17 Connector(CN993) CDE4732 18 Connector(CN994) CDE4732 19 Connector(CN992) CDE5088 20 Connector(CN991) CDE5095

21 Connector(CN995) CDE5137 22 Shaft CLA2903 23 Bracket CNC6502 24 Arm CNC6503 25 Bracket CNC6707

26 Sheet CNM4779 27 Sheet CNM4780 28 Insulator CNM4926 29 Spacer CNM5154 30 PCB CNP4488

31 Guide CNV4569 32 Guide CNV4570 33 Gear CNV4572 34 Gear CNV4573 35 Gear CNV4574

36 Gear CNV4575 37 Arm CNV4576 38 Gear CNV4580 39 Gear CNV4581 40 Panel CNB2296

41 Gear CNV5432 42 Gear CNV5433 43 Gear CNV5434 44 Gear CNV5435 45 Encoder Unit CWM5892

46 Screw BMZ30P060FMC 47 Connector(CN938) CKS2235 48 Connector(CN932) CKS2258 49 Connector(CN939) CKS2260 50 Connector(CN933) CKS3124

51 Connector(CN934) CKS3124 52 Connector(CN935) CKS3124 53 Connector(CN937) CKS3125 54 Connector(CN936) CKS3126 55 Bracket CNC6695

56 Insulator CNM5849 57 Cover CNC6506 58 Sheet CNM4892 59 Insulator CNM5001 60 Bracket Unit CXA8990

61 Gear Unit CXA8992 62 Bracket Unit CXA9007 63 Torque Limiter Assy CXA9624 64 Frame Unit CXA9627 65 Bracket Unit CXA9679

66 Case Unit CXB2591 67 Spare Motor Unit CXX1251 68 Sheet CNM5034 69 Sheet CNM5038 70 Sheet CNM5049

71 Sheet CNM5117 72 Screw BSZ30P040FMC 73 Switch(S932) CSN1012 74 Switch(S933) CSN1025 75 Chassis Assy CXB2792

76 Screw CBA1077 77 Washer CBF1037 78 Chassis CNA2036 79 Insulator CNM4935 80 Rack CNV4567

81 Roller CNV4587 82 Rail Unit(L) CXA8988 83 Rail Unit(R) CXA8989 84 Holder CNC7718 85 Speaker CPV1041

86 Micro Computer Unit CWM5895 87 Plug(CN200) CKS-461 88 Connector(CN501) CKS2258 89 ••••• 90 Connector(CN502) CKS3645

91 Connector(CN100) CKS3822 92 Holder CNC7646 93 Holder CNC7647 94 Clamper CNV1335 95 Screw BMZ20P040FMC

96 Spring CBL1277 97 Transistor(Q931) 2SD2396 98 Connector(CN500) CKS3124 99 Screw CBA1457

- EXTERIOR SECTION (2) PARTS LIST

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

AVX-505

234

RESET

3. SCHEMATIC DIAGRAM

3.1 MICRO COMPUTER UNIT

Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS

LIST”.

AVX-505

SPEAKER

AUDIO VISUAL MASTER UNIT

AVX-505

234

3.2 ENCODER UNIT

AVX-505

234

3.3 KEYBOARD UNIT

AVX-505

234

3.4 PCB UNIT (LCD 5.5 MONITOR)

- (1/5)

1/5

CN939

AVX-505

1/5

AVX-505

234

- (2/5)

2/5

AVX-505

2/5

AVX-505

234

- (3/5)

3/5

AVX-505

3/5

AVX-505

234

- (4/5)

4/5

+ 50 hidden pages