Service
Manual 
ORDER NO.
CRT2192
AV SYSTEM MONITOR
AVX-505 UC
- 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.
CONTENTS
1. |
SAFETY INFORMATION ............................................ |
2 |
7. GENERAL INFORMATION ....................................... |
50 |
2. |
EXPLODED VIEWS AND PARTS LIST ....................... |
2 |
7.1 IC ........................................................................ |
50 |
3. |
SCHEMATIC DIAGRAM ........................................... |
10 |
7.2 DIAGNOSIS ........................................................ |
51 |
4. |
PCB CONNECTION DIAGRAM ................................ |
30 |
7.2.1 DISASSEMBLY........................................... |
51 |
5. |
ELECTRICAL PARTS LIST ........................................ |
42 |
7.2.2 TROUBLESHOOTING FOR |
|
6. |
ADJUSTMENT.......................................................... |
49 |
LCD 5.5 MONITOR .................................... |
58 |
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7.3 EXPLANATION ................................................... |
68 |
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7.3.1 MECHANISM DESCRIPTIONS.................. |
68 |
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7.3.2 BLOCK DIAGRAM...................................... |
70 |
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8. OPERATIONS AND SPECIFICATIONS..................... |
71 |
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PIONEER ELECTRONIC CORPORATION |
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan |
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PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. |
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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
K-FED. APR. 1998 Printed in Japan
AVX-505
1. SAFETY INFORMATION
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.
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 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.
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
2
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.
-PACKING SECTION PARTS LIST
Mark No. Description |
Part No. |
||
|
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 |
- Owner's Manual
Model |
Part No. |
Language |
|
|
|
AVX-505/UC |
CRD2679 |
English, French |
|
|
|
3
AVX-505
2.2 ACCESSORY ASSY
- ACCESSORY ASSY PARTS LIST
Mark No. Description |
Part No. |
||
|
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 |
4
AVX-505
2.3 LCD 5.5 MONITOR
- LCD 5.5 MONITOR PARTS LIST
Mark No. Description |
Part No. |
|
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 |
5
AVX-505
2.4 EXTERIOR (1)
6
AVX-505
- EXTERIOR SECTION (1) PARTS LIST
Mark No. Description |
Part No. |
|
Mark No. Description |
Part No. |
||
1 |
Screw |
IMS20P040FZK |
|
26 |
Rail |
CNS4011 |
2 |
Spring |
CBH-865 |
27 |
Keyboard Unit |
CWM5896 |
|
3 |
Grille Unit |
CXB2376 |
28 |
Screw |
BPZ20P080FMC |
|
4 |
Screw |
CBA1002 |
29 |
Button |
CAC5180 |
|
5 |
Handle |
CNC5395 |
30 |
Screw |
CBA1215 |
|
6 |
Bush |
CNV1009 |
31 |
Spring |
CBH2099 |
|
7 |
Case |
CNB2065 |
32 |
Spring |
CBH2100 |
|
8 |
Sheet |
CNM5051 |
33 |
Spring |
CBH2107 |
|
9 |
Holder |
CNC6798 |
34 |
Connector |
CKS2780 |
|
10 |
Insulator |
CNM5743 |
35 |
Holder |
CNC7643 |
|
11 |
PCB |
CNP4457 |
36 |
Holder |
CNC7644 |
|
12 |
Panel |
CNS4975 |
37 |
Holder |
CNC7645 |
|
13 |
Detach Grille Assy |
CXB2541 |
38 |
Sheet |
CNM5032 |
|
14 |
Screw |
BPZ20P080FZK |
39 |
PCB |
CNP5168 |
|
15 |
••••• |
|
40 |
Arm |
CNV5311 |
|
16 |
Screw |
CBA1378 |
41 |
Arm |
CNV5312 |
|
17 |
Connector(CN900) |
CKS2733 |
42 |
Arm |
CNV5313 |
|
18 |
Sub Grille |
CNS4900 |
43 |
Panel Unit |
CXB2378 |
|
19 |
Volume(VR951,952) |
CCW1019 |
44 |
Cover |
CNS4898 |
|
20 |
PCB |
CNP5119 |
45 |
Spring |
CBH2101 |
|
21 |
LCD Assy |
CXB2539 |
46 |
Screw |
BPZ20P100FZK |
|
22 |
Screw |
BPZ20P080FZK |
47 |
Button |
CAC5547 |
|
23 |
Grille Assy |
CXB2377 |
48 |
Button |
CAC5548 |
|
24 |
LCD 5.5 Monitor |
CWX2010 |
49 |
Button |
CAC5549 |
|
25 |
Rail |
CNS4010 |
|
|
|
|
7
AVX-505
2.5 EXTERIOR (2)
8
AVX-505
- EXTERIOR SECTION (2) PARTS LIST
Mark No. Description |
Part No. |
|
Mark No. Description |
Part No. |
||
1 |
Cord Assy |
CDE5626 |
51 |
Connector(CN934) |
CKS3124 |
|
2 |
Resistor |
RS1/2PMF102J |
52 |
Connector(CN935) |
CKS3124 |
|
3 |
Cap |
CNS1472 |
53 |
Connector(CN937) |
CKS3125 |
|
4 |
Cord Assy |
CDE5716 |
54 |
Connector(CN936) |
CKS3126 |
|
5 |
Drive Mechanism Unit |
CXB2537 |
55 |
Bracket |
CNC6695 |
|
6 |
Screw |
BMZ20P020FMC |
56 |
Insulator |
CNM5849 |
|
7 |
Screw |
CBA1077 |
57 |
Cover |
CNC6506 |
|
8 |
Screw |
CBA1371 |
58 |
Sheet |
CNM4892 |
|
9 |
Screw |
CBA1373 |
59 |
Insulator |
CNM5001 |
|
10 |
Screw |
CBA1376 |
60 |
Bracket Unit |
CXA8990 |
|
11 |
Screw |
CBA1378 |
61 |
Gear Unit |
CXA8992 |
|
12 |
Screw |
CBA1385 |
62 |
Bracket Unit |
CXA9007 |
|
13 |
Washer |
CBF1038 |
63 |
Torque Limiter Assy |
CXA9624 |
|
14 |
Washer |
CBF1039 |
64 |
Frame Unit |
CXA9627 |
|
15 |
Spring |
CBH1922 |
65 |
Bracket Unit |
CXA9679 |
|
16 |
Spring |
CBL1256 |
66 |
Case Unit |
CXB2591 |
|
17 |
Connector(CN993) |
CDE4732 |
67 |
Spare Motor Unit |
CXX1251 |
|
18 |
Connector(CN994) |
CDE4732 |
68 |
Sheet |
CNM5034 |
|
19 |
Connector(CN992) |
CDE5088 |
69 |
Sheet |
CNM5038 |
|
20 |
Connector(CN991) |
CDE5095 |
70 |
Sheet |
CNM5049 |
|
21 |
Connector(CN995) |
CDE5137 |
71 |
Sheet |
CNM5117 |
|
22 |
Shaft |
CLA2903 |
72 |
Screw |
BSZ30P040FMC |
|
23 |
Bracket |
CNC6502 |
73 |
Switch(S932) |
CSN1012 |
|
24 |
Arm |
CNC6503 |
74 |
Switch(S933) |
CSN1025 |
|
25 |
Bracket |
CNC6707 |
75 |
Chassis Assy |
CXB2792 |
|
26 |
Sheet |
CNM4779 |
76 |
Screw |
CBA1077 |
|
27 |
Sheet |
CNM4780 |
77 |
Washer |
CBF1037 |
|
28 |
Insulator |
CNM4926 |
78 |
Chassis |
CNA2036 |
|
29 |
Spacer |
CNM5154 |
79 |
Insulator |
CNM4935 |
|
30 |
PCB |
CNP4488 |
80 |
Rack |
CNV4567 |
|
31 |
Guide |
CNV4569 |
81 |
Roller |
CNV4587 |
|
32 |
Guide |
CNV4570 |
82 |
Rail Unit(L) |
CXA8988 |
|
33 |
Gear |
CNV4572 |
83 |
Rail Unit(R) |
CXA8989 |
|
34 |
Gear |
CNV4573 |
84 |
Holder |
CNC7718 |
|
35 |
Gear |
CNV4574 |
85 |
Speaker |
CPV1041 |
|
36 |
Gear |
CNV4575 |
86 |
Micro Computer Unit |
CWM5895 |
|
37 |
Arm |
CNV4576 |
87 |
Plug(CN200) |
CKS-461 |
|
38 |
Gear |
CNV4580 |
88 |
Connector(CN501) |
CKS2258 |
|
39 |
Gear |
CNV4581 |
89 |
••••• |
|
|
40 |
Panel |
CNB2296 |
90 |
Connector(CN502) |
CKS3645 |
|
41 |
Gear |
CNV5432 |
91 |
Connector(CN100) |
CKS3822 |
|
42 |
Gear |
CNV5433 |
92 |
Holder |
CNC7646 |
|
43 |
Gear |
CNV5434 |
93 |
Holder |
CNC7647 |
|
44 |
Gear |
CNV5435 |
94 |
Clamper |
CNV1335 |
|
45 |
Encoder Unit |
CWM5892 |
95 |
Screw |
BMZ20P040FMC |
|
46 |
Screw |
BMZ30P060FMC |
96 |
Spring |
CBL1277 |
|
47 |
Connector(CN938) |
CKS2235 |
97 |
Transistor(Q931) |
2SD2396 |
|
48 |
Connector(CN932) |
CKS2258 |
98 |
Connector(CN500) |
CKS3124 |
|
49 |
Connector(CN939) |
CKS2260 |
99 |
Screw |
CBA1457 |
|
50 |
Connector(CN933) |
CKS3124 |
|
|
|
|
9
1 |
|
2 |
|
3 |
|
4 |
|
|
|
AVX-505
3. SCHEMATIC DIAGRAM
3.1 MICRO COMPUTER UNIT
A
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A
B
C
RESET
D
10 A |
B |
1 |
2 |
3 |
4 |
5 |
|
6 |
|
7 |
|
8 |
|
|
|
AVX-505
A
AUDIO VISUAL MASTER UNIT
SPEAKER
B
C
C
D
A 11
5 |
|
6 |
|
7 |
|
8 |
|
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|
|
1 |
|
2 |
|
3 |
|
4 |
|
|
|
AVX-505
A
B
C
D
3.2 ENCODER UNIT
A
12 C
1 |
2 |
3 |
4 |
5 |
|
6 |
|
7 |
|
8 |
|
|
|
AVX-505
C F
A
D
B
C
E
G
D
|
|
|
C D E F 13 |
5 |
6 |
7 |
8 |
1 |
|
2 |
|
3 |
|
4 |
|
|
|
AVX-505
3.3 KEYBOARD UNIT
A
B
A
B
C
D
14 B
1 |
2 |
3 |
4 |
AVX-505
15
1 |
|
2 |
|
3 |
|
4 |
|
|
|
AVX-505
3.4 PCB UNIT (LCD 5.5 MONITOR)
- (1/5)
A
B
C CN939
C
D
16 G1/5
1 |
2 |
3 |
4 |
5 |
|
6 |
|
7 |
|
8 |
|
|
|
AVX-505
A
B
C
D
G1/5 17
5 |
|
6 |
|
7 |
|
8 |
|
|
|
||||
|
|
|
1 |
|
2 |
|
3 |
|
4 |
|
|
|
AVX-505
- (2/5)
A
B
C
D
18 G2/5
1 |
2 |
3 |
4 |
5 |
|
6 |
|
7 |
|
8 |
|
|
|
AVX-505
A
B
C
D
G2/5 19
5 |
|
6 |
|
7 |
|
8 |
|
|
|
||||
|
|
|
1 |
|
2 |
|
3 |
|
4 |
|
|
|
AVX-505
- (3/5)
A
B
C
D
20 G3/5
1 |
2 |
3 |
4 |
5 |
|
6 |
|
7 |
|
8 |
|
|
|
AVX-505
A
B
C
D
G3/5 21
5 |
|
6 |
|
7 |
|
8 |
|
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|
|
|
1 |
|
2 |
|
3 |
|
4 |
|
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AVX-505
- (4/5)
A
B
C
D
22 G4/5
1 |
2 |
3 |
4 |
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